Video-picture composition code transmission method

Abstract

Through each own electronic communication device, sending client end and receiving client end carries out communication process with video service. Foreground frame of the sending client end segments video image frame shot and picks up detail part, and then foreground frame and background frame encodes video image frame and transfers it to the receiving client end. Since background frame is changeless before background is replaced, thus, the code of the background is needed to transferred to the receiving client end just once. In the invention, video frame is divided into foreground frame and background frame. Encoding and decoding foreground frame and background frame are carried out respectively. The invention realizes diversified video image frames providing high amusement effect. Features are: lowering encoded code rate, reducing operation quantity and limitation of communication bandwidth.

Description

technical field [0001] The invention relates to a method for superimposed encoding and transmission of video pictures, in particular to a method for overlaying and encoding transmission of video pictures which effectively reduces the encoding bit rate, reduces the amount of computation and limits communication bandwidth, and is mainly used in 3G mobile phones, urban In the telephone or any communication device that can realize video transmission and reception, the sending client and receiving client can perform video communication processing through their respective electronic communication devices. Background technique [0002] Video transmission technology has been widely used on the network, and the third-generation mobile communication (3G) video phone has begun to develop in the fixed communication network (that is, the fixed network, which includes indoor telephone, long-distance telephone, international telephone and general network dedicated line service). However, i...

AI Technical Summary

Problems solved by technology

[0002] Video transmission technology has been widely used on the network, and the third-generation mobile communication (3G) video phone has begun to develop in the fixed communication network (that is, the fixed network, which includes indoor telephone, long-distance telephone, international telephone and general network dedicated line service). However, it is still limited by bandwidth and hardware limitations and is not very popular. In the foreseeable future, 3G video calls in 3G mobile networks will become popular

[0003] At present, most of the video coding and transmission technologies used in 3G video phones are to use the camera to shoot video scenes against the user's head during video communication. The picture (that is, the head plus the background) is encoded and then transmitted to the receiving end, and then the receiving end presents the received decoding on the screen to achieve real-time interactive image transmission effects. To achieve good video quality, a considerable Large encoding bit rate, calculation amount and time, and requires a considerable communication bandwidth, otherwise it is easy to cause picture delay or freeze-frame problems, so this method of directly encoding and transmitting the entire shooting picture needs to be improved.

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