Video encoding method and device, decoding method and device, video transmission system
A technology for video coding and video decoding, applied in the fields of video transmission systems, video coding methods and devices, can solve problems such as low efficiency and long coding time, and achieve the effects of reducing the number of coding, improving efficiency, and reducing error rates
Active Publication Date: 2020-09-11
BEIJING HONGYUN RONGTONG TECH
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[0004] However, because the existing video encoding method encodes the video picture as a whole, it needs to encode all the pictures at the same frame rate, especially for some videos that basically do not change during the playback process of some pictures, there are problems such as long encoding time, low efficiency
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[0056] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0057] Consider that the traditional video coding method encodes the video picture as a whole. On some occasions, there may be an obvious difference between a fast-moving part and a slow-moving part in the video picture. For example, the broadcast scene of the announcer and the monitoring scene of the monitor, the background part of which ...
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The present invention provides a video coding method and device, a decoding method and device, and a video transmission system. The video coding method includes the steps: acquiring a video frame of atarget video; dividing the video frame into at least two changing areas, wherein the change rates of the changing areas in the video frame are different; coding each of the changing areas at a framerate corresponding to each of the changing area to obtain a coded stream corresponding to each of the changing area, where the change rate of each changing area and the respective frame rate have a positive correlation therebetween. The method can effectively improve the efficiency of video coding and the pertinence of coding, thereby further improving the efficiency of video transmission.
Description
Technical field [0001] The present invention relates to the technical field of data processing, in particular to a video encoding method and device, a decoding method and device, and a video transmission system. Background technique [0002] Video encoding (Video Encoding) refers to a method of converting a file in a certain video format into another video format file through a specific compression technology. Video technology has a wide range of applications, such as online visual conferences, online visual e-commerce, online government affairs, online shopping, online schools, telemedicine, online seminars, online showrooms, personal online chats, and visual consultations. However, all of the above applications must be compressed. The amount of transmitted data is so large that it is unrealistic to simply expand the memory capacity and increase the transmission rate of the communication backbone. Data compression technology is an effective solution. Therefore, video coding te...
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IPC IPC(8): H04N19/17H04N19/44H04N21/44H04N21/4402
CPCH04N19/17H04N19/44H04N21/44008H04N21/440218H04N21/440245
Inventor 马骏赵新峰张勇
Owner BEIJING HONGYUN RONGTONG TECH