Video coding block matching method, device, computer equipment and storage medium
A technology of video coding and block matching, which is applied in the field of video coding and decoding, can solve the problems of low coding efficiency and low efficiency of matching block determination, and achieve the effects of simplifying the amount of calculation, increasing the speed, and improving the efficiency of video coding
Active Publication Date: 2021-02-02
ZHUHAI JIELI TECH
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Problems solved by technology
[0004] In the existing video coding technology, when the motion estimation determines the matching block, there is a defect that the matching block determination efficiency is low, resulting in low coding efficiency
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[0059]In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.
[0060]The block matching method for video coding provided in this application can be applied tofigure 1 In the terminal 102 shown. The terminal 102 may be, but is not limited to, various high-definition televisions, personal computers, notebook computers, smart phones, tablet computers, etc. The server 104 may be implemented by an independent server or a server cluster composed of multiple servers.
[0061]In one embodiment, such asfigure 2 As shown, a block matching method for video coding is provided, which is applied tofigure 1 Take the terminal in as an example for description, including the following steps:
[0062]S210:...
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The present application relates to a video coding block matching method, device, computer equipment and storage medium. The method includes: determining the estimated coordinates of integer pixels and estimated coordinates of sub-pixels according to the encoded blocks around the block to be matched in the current video frame, and determining the actual coordinates of integer pixels; Determine the integer pixel block, horizontal half-pixel block, vertical half-pixel block and diagonal half-pixel block; estimate the coordinates according to the sub-pixel, determine the index value; obtain the index value in the first pixel block lookup table and the second pixel block lookup table Query result; according to the query result and the actual coordinates of the whole pixel, obtain the pixel block matching the query result from the determined integer pixel block, horizontal pixel block, vertical pixel block and diagonal pixel block; according to the matched pixel block, determine the pixel block to be matched The block's matching block in the reference video frame. By adopting the method, the calculation amount in the running process can be simplified, and the block matching efficiency in the video coding process can be improved.
Description
Technical field[0001]This application relates to the technical field of video coding and decoding, and in particular to a block matching method, device, computer equipment and storage medium for video coding.Background technique[0002]Video codec is a specific video compression technology. The original video contains a lot of data information. If it is directly transmitted, it will take up a large bandwidth. Therefore, these data can be encoded and compressed at the video sending end to reduce the memory space occupied by it and improve the efficiency of video storage and transmission. At the video receiving end, the encoded video data is decoded to obtain the original video.[0003]A simple and effective block-matching motion estimation method is widely used in the video coding process. In the coding process of the H.264 standard, the motion estimation is 1 / 4 pixel accuracy, so it is necessary to interpolate the pixels in the reference video frame, which is to expand the original 1 pi...
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IPC IPC(8): H04N19/513H04N19/533H04N19/176
Inventor 赵光东黄雄科郝鑫
Owner ZHUHAI JIELI TECH