Sending and receiving methods of GOP image groups

Abstract

The invention provides a sending method of GOP image groups. The method comprises the steps of: A, aiming at image sequences contained in GOP to be sent, dividing each image into at least to sub images according to one dividing mode, and forming at least two corresponding sub image sequences, wherein the divided image is called a father image; and B, aiming at each sub image, carrying out encoding, packaging and sending respectively, wherein the packaging process comprises the step of loading position information and synchronization information, all sub images of the same father image are identical in synchronization information, and the position information is used for describing the position of the sub image in the corresponding father image. Correspondingly, the invention provides an image receiving method. According to the invention, blocking processing is carried out on the image, and the plurality of small pieces of images are encoded and sent in real time, so that compared with the sending of the whole image, the image transmission speed is improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for sending and receiving GOP image groups. Background technique [0002] Most of the images in the existing image transmission process adopt a Group of Pictures structure (GOP, Group of Pictures), and a GOP is a group of continuous pictures. The sending end processes the video image to be sent frame by frame, loads the location and time information, encodes and compresses them separately, and then adds header information to each image packet. The header information includes location information and time information , and then send it over the network. [0003] The image receiving end parses the header information of the received data packet, and transfers the data to the decoding end, and the decoding end decodes each compressed data into a picture, and then restores the original image according to the header information. [0004] Such as figure 1 As shown, ...

AI Technical Summary

Problems solved by technology

Because of the GOP structure frame, some frames occupy a large space, such as I frame, and some image frames occupy a small space, such as P frame and B frame. Among them, I frame is the internal coding frame, and P is the forward prediction Frame, B is a two-way interpolation frame, the image that occupies a large space in the transmission process takes a long time to transmit, resulting in low image transmission efficiency

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