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Video communication method, video communication device and video communication system

A video and video receiving technology, applied in the field of video communication, can solve the problems of not being able to use users, not being able to divide the content of the scene into more layers, and limiting the scope of application, etc., to achieve the effect of increasing the sense of reality

Active Publication Date: 2009-12-23
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The Chroma key method requires the background of the segmented video to be blue, green or other single color, so that the segmentation of the foreground object and the background can be realized, and the color in the background cannot appear in the foreground. Due to the difference between the background and the foreground in this method Strict color requirements, inconvenient to use
[0005] 2. The Chroma key method can only distinguish the foreground from the background, but cannot divide the content of the scene into more layers, and cannot replace some objects in the foreground. For example, in a meeting scene, there may be a table in front of the person. If the other party’s The table is replaced with a local table, which can increase the realism
[0006] 3. This technology only realizes the replacement of two-dimensional video content, which cannot enable users to experience the depth of the scene and lacks a sense of reality
For example: arrange the indoor environment of both communication parties to be the same, so that during the communication process, the user sees the other party in the video, as if the other party is in the same scene as himself, but the application scope of this method is limited by the environmental layout of both parties limit

Method used

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  • Video communication method, video communication device and video communication system
  • Video communication method, video communication device and video communication system
  • Video communication method, video communication device and video communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a video preprocessing method, such as figure 1 As shown, the video preprocessing method includes the following steps:

[0043] 101. Acquire local scene content and its depth value through a depth camera or a stereo camera.

[0044] 102. The local scene content can be divided into multiple levels according to the depth value of the local scene content, so that the levels described in the local target content can be divided, that is, the local target content can be divided from the local scene content.

[0045] 103. Send the segmented local target content and the depth value corresponding to the local target content to the remote end, usually to the opposite end of the communication.

[0046] In this embodiment, image preprocessing is mainly completed through steps 101 and 102, and step 103 is a step of sending the preprocessing content, which can be omitted.

[0047] Corresponding to the above video preprocessing method, this embodiment also pr...

Embodiment 2

[0062] This embodiment provides a video communication device. The device sends the local target content in the local scene content and the depth value corresponding to the local target content to the peer device. After receiving the local target content, the peer device sends the The local target content and the peer background synthesize a scene and display it to the peer user. In this way, it can be ensured that the scene seen by the peer user is exactly the same as the scene in which the user is located, which has a sense of presence and reality. After the local video communication device receives the remote target content, it combines the remote target content and the local background content into a scene, and displays it to the local user, so as to improve the local user's sense of presence and reality during the communication process .

[0063] Such as Figure 6 As shown, the video communication device mainly includes: an information acquisition module 61 , a segmentat...

Embodiment 3

[0104] This embodiment is an example of a communication process in a video communication system, specifically, two users (A and B) communicate through the video communication device in Embodiment 2, and during the communication process, user A sends video data to user B, and The whole process of user B receiving the video data of user A, the structure of the video communication system is as follows Figure 10 As shown, including the sending end and the receiving end, the sending end and the receiving end are connected through the network.

[0105] The sending end is used to acquire the scene content of the sending end and its depth value, segment the target content of the sending end from the scene content of the sending end according to the depth value of the scene content of the sending end, and store the target content of the sending end and its depth value Send to the receiving end; the sending end includes: an information acquisition module 1001, which is used to realize ...

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Abstract

The embodiment of the invention discloses a video communication method, a video communication device and a video communication system and relates to the field of video communication. The invention solves the prior problem for strengthening real feeling only by specially arranging scenes of both communication parties. The embodiment of the invention comprises the following steps: firstly, extracting local target contents; then transmitting the local target contents and depth values of the local target contents to a remote end; synthesizing the received local target contents and a background at the remote end into one scene at the remote end by utilizing a relation of the depth values so as to display the scene, leading a display picture of the remote end and the local background of the display picture to correspond and strengthening the real feeling of users under the condition of no special arrangement of the scenes of both communication parties. The embodiment of the invention can be used for video communication, such as common video chat, office video telephones, video sessions, and the like.

Description

technical field [0001] The invention relates to the field of video communication, in particular to a video communication method, and a device and system using the video communication method. Background technique [0002] With the continuous development of communication technology, video communication technology has been widely used, for example, video telephony, video conferencing, etc. all use video communication technology. Various current video communication applications mainly use traditional two-dimensional images or videos. [0003] At present, for the target extraction of image content, the Chroma key (chroma coding) method is mainly used to extract the foreground target in the video through color segmentation. In video communication, the extracted foreground target is synthesized with other far-end videos to increase the sense of reality. For example: the person in the video (the foreground target) is synthesized with the far-end slide presentation. But the Chroma...

Claims

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Application Information

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IPC IPC(8): H04N13/00H04N7/14H04N7/15
Inventor 方平刘琛刘源
Owner HUAWEI DEVICE CO LTD
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