Method, device and system for implementing video conference

A media resource device, comprising:

• A CreateImage module, adapted to create a video image with ImageId information for a video conference;
• and
• an OperateImage module, adapted to define an image data source and an image data output for the created video image, and acquire and send image data according to information of the image data source and the image data output of the video image with the ImageId information.

A method for implementing a video conference, the method comprising:

• Sending CreateImage information to a media resource device for instructing the media resource device to create a video image for a video conference;
• and
• sending DefineImage information containing ImageId information to the media resource device for instructing the media resource device to define an image data source and an image data output for a video image with the ImageId information.

A video-service management device, comprising:

• a creation instruction module, adapted to send CreateImage information to a media resource device for instructing the media resource device to create a video image for a video conference;
• and
• a definition instruction module, adapted to send DefineImage information containing ImageId information to the media resource device for instructing the media resource device to define an image data source and an image data output for a video image with the ImageId information.

A system for implementing a video conference, the system comprising:

• a video-service management device, adapted to send CreateImage information and DefineImage information to a media resource device;
• and
• the media resource device, adapted to create a video image with ImageId information for a video conference according to the received CreateImage information, define an image data source and an image data output for the created video image according to the received DefineImage information, and acquire and send image data according to the image data source and the image data output of the video image with the ImageId information.

A video conference terminal, comprising:

• a creation module, adapted to receive a creation command input from outside, and send creation instruction information to a video-service management device for triggering the video-service management device to send CreateImage information to a media resource device;
• and
• a definition module, adapted to receive a definition command input from the outside, and send definition instruction information to the video-service management device for triggering the video-service management device to send DefineImage information to the media resource device.