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Image Webcasting System Camera Server Manual
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Contents Introduction Introduction .............................................................................. 4 Overview .................................................................................. 5 Features ................................................................................... 6 System Configuration .............................................................. 8 System Requirment ...............................................................
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Chapter 4 Creating a Web Pages The Sender's Web Page ........................................................ 76 Features of the Java Viewer ....................................................... 77 Features of the Helper Viewer .................................................... 79 Viewing Sample Pages .......................................................... 80 Using the Java Viewer to Send Information ........................... 82 Creating Web Pages that Use Java Viewers ............................
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Introduction Thank you for choosing "WebView Livescope" This manual describes how to set up and use the WebView Livescope Camera Server. Read this manual carefully before you use WebView Livescope to ensure that you make the best possible use of this product. Store this manual in a safe place after you finish reading it. Important The unauthorized transfer of all or any part of the contents of this manual is forbidden. The contents of this manual are subject to change without notice.
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Overview WebView Livescope is a system for transmitting to a computer live images taken by a video camera (Canon VC-C4/VC-C4R/VC-C3/VC-C1 MK-II) installed in a remote location, via the Internet/Intranets. The image recipient (hereafter called the "client") can easily view the image with a Web browser. Moreover, since the operator can easily control the camera from a remote Web browser via a network, images of a highly on-site feel can be transmitted in real-time.
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Features ■ Easy transmission of live images to the Internet or an Intranet Uses HTTP protocol in addition to the unique (WebView-TCP) transmission protocol. Image data can be sent through a firewall without changing network administration settings. ■ Transmission and reception of high-resolution video WebView Livescope uses the Motion-JPEG image compression system and supports the Osprey100 capture board from ViewCast.com and the Meteor, Meteor II and Meteor/PPB capture boards from Matrox.
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■ Support for multiple concurrent image sizes You can select any of 4 image sizes (640×480, 320×240, 160×120 and 80×60) and transmit them simultaneously. ■ Enhanced security functions Video distribution destinations can be restricted using IP addresses. Introduction ■ Automatic sample page generation function This function automatically modifies the contents of the sample web page files based on the camera server settings. The sender can create web pages based on these sample pages.
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System Configuration The web server and camera server are connected to the viewer using IP (Internet Protocol). Normally, the live video is distributed via the internet, but ordinary public phone lines or ISDN lines can also be used for a direct connection. Video image sender Collection of still images and log data Camera server VC-C4 COMMUN f:4-64mmICATION CAMERA 1:1.4-2.8 VC-C4 COMMUN f:4-64mmICATION CAMERA 1:1.4-2.
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manager Camera server settings can be specified and modified remotely. Video image receiver Firewall penetrated helper viewer Java viewer Web browser Netscape Navigator or Communicator 4.5 or later or Internet Explorer 4.01 or later Live video Video image receiver Live video images can be received and control privileges can be granted allowing control of the camera.
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Information Sending Side Web Server The web server is the computer that runs the web server software. When accessed from a web browser, this server sends HTML data to the browser. WebView Livescope Camera Server This server is made up of a camera and a computer that is equipped with an image capture board and runs the VC-C4 COMMUNI f:4-64mmCATION CAMERA 1:1.4-2.8 camera server software. Normally, the server modules start up automatically when the computer is switched on.
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System Configuration WebView Livescope Manager The WebView Livescope Manager allows the camera server to be managed from a remote location. ■ Application Types and Functions Application Function The WebView Livescope manager allows each of the camera server modules to be managed remotely. This application also starts up the administrative viewer (see below) and the web browser used for access log analysis.
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System Requirement WebView Livescope Camera Server System Computer IBM PC/AT compatible (CPU Pentium II, III or better than MMX Pentium 200 MHz) Operating System RAM Network Video capture board Windows NT 4.0 (SP5 or later recommended, IE 4.0 or later required) Supported cameras VC-C4/VC-C4R/VC-C3/VC-C1 MK-II Software Minimum 64 MB recommended Ethernet (10Base-T or 100Base-T) Osprey-100, Meteor, Meteor II or Meteor/PPB WebView Livescope Ver. 3.
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Chapter 1 Installation This chapter describes how to install and check the operation of the WebView Livescope camera server, manager and helper software.
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Installation Procedure c Caution Before you begin the installation If there is web server software already installed on the PC to be used for installation, you must avoid conflicting the port number of WebView Livescope HTTP server and web server. To ensure that the WebView Livescope HTTP server can penetrate firewalls, it is installed with a default port number of 80.
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Installing the Server 1 Click the [Install Server] button in the main screen to launch the camera server installer. Then click the [Next] button. 2 1 Enter the serial number (S/N) and click the [Next] button. For the serial number, refer to the sticker Installation on the outside of the software packaging or the user registration card. 3 Specify the destination folder for the installation and click the [Next] button.
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4 Specify the item that you want to list in the Start, Programs menu and click "Next". 5 Select the capture board installed in your machine and click "Next". If a capture board driver has not been installed or an old version of the driver is installed, a dialog box asking you to install the driver will appear. In this case, you can install the driver by starting the installer for the capture board driver. * You must select the card installed in the machine for the video capture card.
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Installation Procedure 8 Select the type of camera that you want to connect to each terminal and click "Next". After this a dialog box for setting the number of cameras selected in step 6 will appear. * You must select the type of camera (VC-C4, VC-C4R, VC-C3, VC-C1 MK-II) connected to each connector. Look at the camera unit to determine the type of camera. 1 9 Installation Select the video format for each camera and click "Next". * You must select a video format that the camera supports.
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e Settings for when VC-C4 cameras are connected using cascade connections Note If you use cascade connections to connect VC-C4 and VC-C4R cameras, specify the same COM port for the cameras connected using cascade connections. Camera server COM1 VC-C4 VC-C4 Composite connector 1 Composite connector 2 VC-C4 COMMUNI f:4-64mmCATION CAMERA 1:1.4-2.8 VC-C4 COMMUNI f:4-64mmCATION CAMERA 1:1.4-2.
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Installation Procedure The names of the camera connected to each COM port and the order in which they are listed are displayed in the Start Copying Files dialog box. Check whether the settings are correct. If you want to change any settings, click "Back" to return to the Settings screen.
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Installing the Manager (for remote management) 1 Click the [Install Manager] button in the main screen to launch the manager installer. Then click the [Next] button. 2 Specify the destination folder for the installation and click the [Next] button. 3 Specify the menu names to be registered in the [Start] button "Program Menu" and click the [Next] button. 4 Check the settings and selections made so far and then click the [Next] button. The installer then copies files and sets the registries.
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Installation Procedure Installing the Viewer 1 2 Click the [Install Viewer] button in the main screen to launch the viewer installer. Then click the [Next] button. 1 A dialog box appears asking you to Installation agree to the software licensing agreement. Click the [Yes] button. If an older version of WebView is already installed on the machine being 3 used for the installation, a dialog box appears at this point asking whether you want to uninstall the old version.
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Starting Up and Shutting Down the Camera Server Starting Up the Camera Server When you switch on the computer on which the camera server software was installed, the camera server is automatically launched and the service begins. Shutting Down the Camera Server 1 Press [Ctrl]+[Alt]+[Delete] and log in as an Administrator. 2 Select [Start]-[Shutdown]. 3 Select "Shut down the computer?" and click the [Yes] button. 4 Check that the "It is now safe to turn off your computer.
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Checking Camera Server Operation After installation is completed, first check that the camera server is running normally. The simplest way to check this is by using a sample page. Checking Procedure 1 Switch on the connected VC-C4 camera and the computer on which the camera server was installed. The camera server automatically launches and resets the connected camera. (The camera automatically returns to the "home" position.
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Notes on Using the Software This section provides some points to note and items to refer to when you are using WebView Livescope camera server software. Connection distance between the camera server and the camera (VC-C4/VC-C4R/VC-C3/VC-C1 MK-II) Use a cable no longer than 15 meters, as stipulated in the RS-232C standard. Successful operation cannot be guaranteed if a cable longer than 15 meters is used.
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Chapter 2 Camera Server Setting This chapter describes how to specify the settings for the WebView Livescope camera server and how to manage the server and monitor its status.
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Camera Server Setting The camera server settings can be specified either on the computer on which the camera server software was installed (local maintenance) or by from a computer connected to the network (remote maintenance). Using the Remote Maintenance Function to Set Up the Camera Server The WebView Livescope manager can be used to change the camera server settings from a remote computer connected to the camera server via a network.
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Setting Up the Camera Server The settings for the camera server are specified from the WebView Livescope manager. The WebView Livescope manager software is used to modify the WebView Livescope camera server settings and to view the log. The WebView Livescope manager can also manage the camera server remotely. Starting the WebView Livescope Manager 1 Switch on the connected camera and the computer on which the camera server is installed. 2 Press [Ctrl]+[Alt]+[Delete] and log in as an Administrator.
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Starting the Administrative Viewer In the same way as the ordinary users views video, the manager viewer in the camera server can be used to view the camera video and to adjust the camera presets and video. The manager viewer can also be used to control the camera when ordinary users are forbidden to control the camera. 1 Switch on the connected camera and the computer on which the camera server is installed. 2 Press [Ctrl]+[Alt]+[Delete] and log in as an Administrator.
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Setting Up the Camera Server Starting "Camera Server Setting" In "Camera Server Setting", you can specify a range of camera control settings as well as settings for the video capture card and logs. However, additional cameras, changes to the video capture card type and remote maintenance settings can only be specified during local maintenance. These settings cannot be changed during remote maintenance. 1 Launch the WebView Livescope manager. Click the [Setup Server Configuration] button.
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Setting the Limits for Connection to the Camera Server Setting the connection limits Selecting the Settings 1 In the "Connection Limitation" setup window, click the "Connection Limit" tab. ■ "Connection Limit" Settings a Item Details Default Value Max connect Time Specifies the number of minutes for which video clients can be connected to the WebView server. When the specified time is exceeded, the client is automatically disconnected.
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Setting Up the Camera Server Setting the Limits for Connection to the Camera Server Setting the client access limitation Selecting the Settings 1 In the "Connection Limitation" setup window, click the "IP Restriction" tab. ■ "IP Restriction" Settings Details Default Value Applies the same access restrictions to all HTTP-connected viewers, TCP-connected viewers and proxies.
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Setting the Limits for Connection to the Camera Server Setting the ports Selecting the Settings 1 In the "Connection Limitation" setup window, click the "Port Number" tab. ■ "Port Number" Settings Item Details Default Value Video port Sets the service port for the WebView-TCP video transmission protocol. 65310 Camera control port Sets the service port for the WebView-TCP camera control protocol. 65311 HTTP port Sets the service port for the WebView-HTTP video transmission protocol.
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Setting Up the Camera Server Setting the Limits for Connection to the Camera Server Setting the Remote Maintenance Usage Conditions Selecting the Settings 1 In the "Connection Limitation" setup window, click the "Remote Maintenance" tab. 2 ■ "Remote Maintenance" Settings Item Details Default Value Specifies whether maintenance functions from a remote computer can be used. If you place a tick in this checkbox, remote maintenance functions are permitted.
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Setting the Video Parameters Under "Video parameters" you can set the quality and size of the image provided to clients. Selecting the Settings 1 Display the "[server name] (Local Server) Setup" window and double-click "Video parameters". 2 The "Video Parameters" setup window appears. The following icons and buttons are used to specify the video parameter settings: Default icon Denotes that the default image size is selected. This setting can be changed by clicking the mouse in the "Default" area.
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Setting Up the Camera Server ■ "Video Parameters" Settings a Item Capture Rate Quality of compression Sets the JPEG compression quality. The quality can be set to any value between 1 and 99. Higher settings give better image quality but may reduce the video frame rate. Default Sets the default image size specified in the viewer when the viewer was launched. Four sizes can be selected: 640×480, 320×240, 160×120 and 80×60. Enable Sets the image size that can be sent to a client.
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Dynamic Video Parameter Modification Under "Dynamic change of Video Parameters", you can check and modify the video image quality while viewing live video without restarting the camera server. The video can be checked using the administrative viewer. Selecting the Settings 1 WebView In the WebView Livescope manager window, click the [Administrative Viewer] button to start up the administrative viewer.
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Setting Up the Camera Server Changing the Capture Card Settings This option allows you to change the settings for your video capture card. Selecting the Settings 1 If you display the "[server name] (Local Server) Setup" window and double-click "Capture Card", the window for the capture card currently being used appears. Double-click the capture card name. 2 2 c Caution Camera Server Setting The setup window for your capture card appears.
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Changing the Camera Settings Under "Camera", you can specify the camera settings, video source settings, panorama settings and the field of view limits. Use the tabs to switch between the different. Selecting the Settings 1 Display the "[server name] (Local Server) Setup" window and double-click "Camera". The screen for the camera you are currently using appears. Double-click the camera name. 2 The setup window for the current camera appears.
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Setting Up the Camera Server Changing the Camera Settings Changing "Camera setting" Selecting the Settings 1 Display the setup window for the current camera and click the "Camera setting" tab. 2 Item Camera Name COM port address Wide convertor Power Off time Power On time Shutter speed Focus 2 Details Sets the name of the camera being used. Sets the serial port to which the camera is connected. Specifies whether a wide-angle lens is used on the current camera.
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Changing the Camera Settings Changing the image source You can set the type of video input port and signal. Selecting the Settings 1 Display the setup screen for the camera being used and click the "Video Source Setting" tab. ■ "Video Source Setting" settings Item 2 Details Capture Channel Sets the video input port Capture Format Sets the type of video signal Default Value Composite1 NTSC After you have changed the settings, click the [OK] button.
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Setting Up the Camera Server e Adding Cameras Note In WebView Livescope, one camera server can control 4 cameras. (Changes can only be specified as part of local maintenance.) Display the "[server name] (Local Server) Setup" window, select "Camera" and click the [Add] button. In the dialog box that appears, specify the camera to be added and click the [OK] button.
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Changing the Camera Settings Selecting Panorama Images The procedure below describes how to photograph a panorama image and how to specify the settings for panorama photography. Selecting the Settings 1 Display the setup screen for the camera being used and click the "Panorama Setting" tab. a IMPORTANT Displays the currently registered panorama image (blank if no image is registered). Shows the date and time when the currently registered panorama image was shot.
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Setting Up the Camera Server 3 When photography ends, click the [OK] button if you are happy with the photographed images. Click the [Stop] button to interrupt photography. To start again, click the [Try again] button. If you are not happy with the photographed images, you can repeat the procedure by clicking the [Try again] button.
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Changing the Camera Settings Setting limits for the field of view The field of view can be specified by setting limits on the camera pan, tilt and zoom ratio (angle of view). Selecting the Settings 1 Display the setup screen for the camera being used and click the "View Restriction" tab. ■Visibility Range Limitation Settings Item Visibility range limitation On Pan Tilt Zoom ratio (Field of view) Explanation Default Setting Specify whether or not to limit the camera's visibility range.
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Setting Up the Camera Server 2 Put a tick in the "View Restriction" checkbox. Specify the angle of view limits for pan, tilt and zoom. You can set these values by entering numbers directly or by dragging the white rectangular frame on the panorama image to the desired position and shape. The green frame indicates the limits of the telephoto zoom angle of view and the red frame indicates the limits of the wide-angle angle of view. After you have changed the settings, click the [OK] button.
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Changing the Camera Control Settings Use the procedure below to set the camera control privileges and preset positions. Selecting the Settings 1 Display the "[server name] (Local Server) Setup" window and double-click "Camera Control Setting". 2 The "Camera Control" setup window appears.
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Setting Up the Camera Server Changing the Camera Control Settings Setting the Camera Control Time Selecting the Settings 1 In the "Camera Control" setup window, click the a "Camera Control" tab. IMPORTANT 2 Item 2 Details Camera Server Setting ■ "Camera Control" settings Default Value Camera Control Queue Length Sets the number of people who hold the camera control privileges granted when clients control the camera. This parameter can be set to any number between 0 and 20.
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Changing the Camera Control Settings Setting Camera Display Positions (Preset Positions) Camera positions can be specified and stored in a catalog format. Simply by selecting the specified preset position data, a client can view the video image intended by the sender. Because any name can be assigned to a preset position, you can name and store a preset position in a way that clearly identifies the particular angle you want to show to the client.
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Setting Up the Camera Server 3 The preset data appears on the list. You can reorder the presets using the [Up] and [Down] buttons. Up to 10 preset positions can be stored at one time. 2 To set the home position Camera Server Setting e Note Use the procedure below to set the position to which the camera moves when nobody holds camera control privileges. In the "Camera Control" setup window, click the "Preset View" tab. Click the name of the preset position you want to select as the home position.
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e To set a preset position while viewing the video Note You can launch the viewer and specify preset position while you are watching the actual video image. 1 In the "Camera Control" setup window, click the "Preset View" tab. 2 When you double-click the name of the preset you want to set or click the [Edit] button, a window appears in which you can set the camera position and zoom settings using either the panorama image or numbers. Preset name Use this field to change the preset name.
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Setting Up the Camera Server 3 When you click the [Adminstrative Viewer] button, the administrative viewer window appears. The position and zoom settings of the camera used for monitoring by the viewer can be used as a preset position. Click the [Start Control] button to acquire camera control privileges and move the camera to the position you want to set. 2 Camera Server Setting Tilt scroll bar Changes the camera tilt (up/down). Zoom scroll bar Changes the camera's zoom ratio.
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Setting the WWW server function Under "HTTP", you can set the web server functions. Selecting the Settings 1 Display the "[server name] (Local Server) Setup" window and double-click "HTTP Setting". 2 The "HTTP Setting" setup window appears. To change the download folder: Tick the "Download Java Applet" checkbox. Click the [Reference] button. Select the download folder. Click the [OK] button. The specified download folder is displayed. * The [Reference] button cannot be used via a remote connection.
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Setting Up the Camera Server ■ "HTTP Setup" Settings Item Default Value Use WWW Server Details Specifies whether to use the proxy web server function. The proxy web server functions can be used when this checkbox is ticked. Host Name Sets the name of the web server host used as the proxy web server. localhost Port Number Sets the port number for the web server host used as the proxy web server.
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Changing the Log File Settings Use the procedure below to collect the "TCP video", HTTP video", "Camera control" and "Remote maintenance server" access logs. Selecting the Settings 1 Display the "[server name] (Local Server) Setup" window and double-click "Log". 2 The "Access Log" setup window appears. a IMPORTANT Place a tick in the access logs to be collected and specify the access log storage location in the "Directory" field. * The "Directory" cannot be specified remotely.
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Setting Up the Camera Server ■ "Log" Settings Item TCP Protocol Details Specifies whether the TCP video server log is collected. When this checkbox is ticked, the log can be collected. If you collect the log, you must specify the access log storage location. Default Value ON HTTP Protocol Specifies whether the HTTP video server log is collected. When this checkbox is ticked, the log can be collected. If you collect the log, you must specify the access log storage location.
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Viewing the Event Log Use the procedure below to view the event log of the computer running the camera server. Viewing this log shows you the status of the computer running the camera server. Selecting the Settings 1 Select [Start]-[Programs]-[WebView Livescope]-[Camera server setting]. The WebView Livescope manager window appears. Click the [View Event Log] button. 2 The "Server Event Log display" window appears. Click the "Event log" menu and select the event log you want to view.
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Setting Up the Camera Server Viewing the Video Frame Rate Use the procedure below to view the frame rate for video received by connected clients. You can select and view the WebView-HTTP protocol (Java viewer and helper viewer) or WebView-TCP protocol (helper viewer). Selecting the Settings Select [Start]-[Programs]-[WebView Livescope]-[Camera Server Setting]. The WebView Livescope manager window appears. 1 Click the [View Video Frame Rate] button.
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Automatically Updating or Saving the Displayed Data Selecting the Settings 1 The "Video Capture Rate Monitor" window appears. 2 Select [File]-[Config]. ■ "Setup Frame rate monitor" settings 3 Item Details Save to File Saves the displayed frame rate to a file. When this checkbox is ticked, the displayed frame rate can be saved to a file. If the Save to file option is selected, the [Begin save] and [End save] buttons in the "Frame rate monitor" window are enabled.
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Setting Up the Camera Server Automatically Updating or Saving the Displayed Data Saving the Frame Rate Monitor Details to a File Selecting the Settings 1 The "Video Capture Rate Monitor" window appears. Click "View" and select the viewer to be displayed. 2 2 Camera Server Setting The video display status for the selected viewer is displayed. Select [File]-[Config]. 3 Tick the "Save to file" checkbox and specify a file name.
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Setting Up the Camera Server 60
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Chapter 3 Access Log Analysis Tools This chapter describes how to set up and view the access log analysis tools that are used to analyze how users utilize the information distributed using WebView Livescope.
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Access Log Analysis Tools The access log analysis tools analyze the access log data stored by the camera server and then show the statistics for past viewer access to the camera server in the form of graphs or tables. The administrator can use these tools to quickly and easily ascertain the user access status. Access log analysis can be viewed not only from the camera server machine and other machines Livescope manager is installed, but also from password-protected web browsers.
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Using the Access Log Analysis Tools Accessing the Access Log Analysis Tools Access from the WebView Livescope manager From the WebView Livescope manager window, click the [View Access Statistics] button. The web browser starts up and the page for viewing the access log analysis appears. Access from a web browser 3 Access Log Analysis Tools Log access from the WebView Livescope manager described above cannot penetrate firewalls. To penetrate firewalls, use the following access procedure.
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"Access Count" Analysis In the specified period, data is collected on the number of times clients have accessed the camera server. You can select any of 4 formats for data display: calendar, graph, table or CSV. Selecting the Settings 1 Click the [Access Count] button. 2 The window for setting the "Access count" analysis conditions appears. If you select "Calendar" as the "Output Form", a setup window of the type shown at left is displayed. - "Target Month" Select the month you want to view.
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Using the Access Log Analysis Tools Sample Displays ● Calendar format The access counts for each day in the specified month are displayed in calendar format, along with the total and average access counts by week and by each day of the week. Each of the days in the calendar is a link and displays the hourly access count for that day when clicked.
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"Access Ranking" Analysis This option tabulates and displays data showing which users or domains have accessed the system and the frequency of access by those users or domains. The information can be displayed in graph, table or CSV format. Selecting the Settings 1 Click the [Access Ranking] button. 2 The window for setting the "Ranking" analysis conditions appears. - "Output Form" Select graph, table or CSV as the display format.
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Using the Access Log Analysis Tools Sample Displays ● Graph format This format shows the access count ranking for the selected output records in the specified period in the form of a bar chart. ● Table format This format shows the access count ranking for the selected output records in the specified 3 period as a table. Access Log Analysis Tools ● CSV format This format analyzes and automatically downloads the access count ranking for the selected output records in the specified period as a CSV file.
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"Simultaneous User Count" Analysis This option tabulates and displays the number of clients connected concurrently. This data can be displayed in graph or CSV format. Selecting the Settings 1 Click the [Simultaneous User Count] button. 2 The window for setting the "Simultaneous User Count" analysis conditions appears. - "Output Form" Select graph or CSV as the display format. - "Target Date" Select the date you want to view. After you have selected the settings, click the [Start] button.
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Using the Access Log Analysis Tools Sample Displays ● Graph format This format shows the hourly shifts in the number of concurrent connections for the specified date. The upper chart shows the number of concurrent connections for HTTP clients (Java viewers or helper viewers connected via HTTP), and the lower chart shows the number of concurrent connections for TCP clients (helper viewers connected via TCP).
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"Access Duration" Analysis This option tabulates and displays information on the continuous connection time for each connection. The results can be displayed in graph, table or CSV format. Selecting the Settings 1 Click the [Access Duration] button. 2 The window for setting the "Access Duration" analysis conditions appears. - "Output Form" Select graph, table or CSV as the display format.
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Using the Access Log Analysis Tools Sample Displays ● Graph format This format uses a bar chart to show the access count for different durations (in minutes) up to the specified maximum minutes shown for the specified period. ● Table format 3 Access Log Analysis Tools This format uses a table to show the access count for different durations (in minutes) up to the specified maximum minutes shown for the specified period.
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"Browsing Log File" This option allows you to view the error log and the execution progress of the still image recording function (upload server). You can also use this option to view the access logs for the servers. Selecting the Settings 1 Click "Browsing Log File". 2 The window for setting the "Browsing Log File" conditions appears. - "Log Type" Select upload, TCP video, HTTP video, camera control or remote maintenance. - "Target Date" Select the date you want to view.
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Using the Access Log Analysis Tools "Deleting Cache File" This option allows you to delete all the Cache File generated for analysis processing. Use this feature for tasks such as analyzing past backup file logs. Selecting the Settings 1 Click "Others". 3 Access Log Analysis Tools 2 Click the [Delete] button.
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Using the Access Log Analysis Tools c Caution c If you select "Print" in the Netscape browser, graphs sometimes may not be printed as they appear on the screen. In Internet Explorer also, the "Number of Concurrent Connections" graphs other than "outline" may not be printed as they appear on the screen. If you select the CSV format, the operation procedure and display differs depending on the web browser and the installed applications.
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Chapter 4 Creating Web Pages This chapter describes how to use WebView Livescope to transmit information. Video can be transmitted in a number of ways, including displaying video or still images on a web page and displaying multiple images.
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The Sender's Web Page The sender with the camera server installed builds a web page to be used for video image transmission. To view the video images, the client must use a viewer provided by the sender. The two viewers that can be used are "Java viewers" and the "helper viewer". The sender decides in advance which viewer will be supported and builds a dedicated web page for the viewer. Be sure that you fully understand the features of each type of viewer before you design your web page.
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Features of Java Viewers These are viewers supplied as Java applets and can be run by any web browser that runs Java, including the current mainstream browsers, Netscape Navigator and Microsoft Internet Explorer. The applets are downloaded from the HTTP conversion server in the camera server to the web browser and then run on the web browser. The features of the Java viewers are listed below. Java viewers use the WebView-HTTP protocol for video transmission and camera operation.
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Java Viewer for Video LiveApplet Video display function Camera control function Java Viewer for Video Glimpse Video display function Java Viewer for Still Images PanoramaSnap Still image display function 78
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The Sender's Web Page Features of the Helper Viewer The helper viewer is an application started from a web browser. Unlike the Java viewers, the helper viewer must be pre-installed on the client's computer. The features of the helper viewer are outlined below. While the helper viewer must be pre-installed, once installed it launches quickly and is stable to run. The helper viewer uses both the WebView-TCP and WebView-HTTP protocols and can penetrate firewalls to access external sites.
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Viewing Sample Pages A number of sample web pages for video transmission are provided with the WebView Livescope camera server. These sample pages can be viewed using the procedure given below. Refer to these pages when you create your own web page. Viewing the Pages 1 From the [Start] menu, select [Programs]-[WebView Livescope]-[Home Page Sample]. Alternatively, enter the camera server URL from your web browser. The URL is as follows: http://192.168.100.10*/-wvdoc-01-/SamplePages/index.
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● Examples of sample pages Java Applet Sample 1 (LiveApplet) Java Applet Sample 2 (LiveApplet) This is a LiveApplet sample page that sends live images as video and allows the user to control the camera. 4 This is a LiveApplet sample page Show Four Live-Images Interactive Live-Image Sample Page by JavaScript This is a sample page showing 4 tiled still images.
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Using Java Viewers to Send Information This section describes how to use a Java viewer to supply video images and provides examples of applications. Creating Web Pages that Use Java Viewers When you use a Java viewer, the viewer applet used must be embedded in the web page provided to the client. However, this is not especially difficult. A web page of this sort can be created simply using the type of HTML coding normally used to embed an applet. LiveApplet
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e Note Shortening the Applet Download Time You can reduce the time required to download an applet by archiving multiple class files into a single CAB or ZIP file. Using Internet Explorer Internet Explorer supports compressed archive (CAB) files. WebView Livescope provides the LiveApplet.cab, Glimpse.cab and PanoramaSnap.cab archives in the folder used for applet installation.
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Using Java Viewers to Send Information 1 sampleSite.html
SampleSite LiveApplet
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Using Glimpse and LiveApplet Together This section describes the creation of a web page that allows the user to use Glimpse, which downloads quickly, to view live video at a slow frame rate, and then use LiveApplet to view the video at a faster rate and to operate the camera when an image of particular interest appears. 1 Glimpse embedded in the page Clicking on the button opens a page that includes LiveApplet. 2 86 The pop-up LiveApplet window.
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Using Java Viewers to Send Information 1 4 Creating Web Pages 2 Glimpse.html
Glimpse
