Motion vector selection method and device, electronic equipment and storage medium
A motion vector and candidate motion vector technology, applied in the field of audio and video coding, can solve the problem of difficult to meet the real-time requirements of coding and decoding, consume a lot of time, etc., to improve the overall coding efficiency, reduce the time consumed and the time of inter-frame prediction , the effect of saving time-consuming calculation
Active Publication Date: 2021-08-24
杭州博雅鸿图视频技术有限公司
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The inter-frame prediction process is serially processed, so whether it is the acquisition of up to 52 MVs or the entire serial processing process, it will consume a lot of time, and it is difficult to meet the real-time requirements of encoding and decoding.
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[0046] Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for thorough understanding of the application and to fully convey the scope of the application to those skilled in the art.
[0047] It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.
[0048] A motion vector selection method, device, electronic device, and storage medium according to the embodiments of the present application are described below with reference to the accompanying drawings.
[0049]The embo...
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The invention provides a motion vector selection method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining all motion vector information of all coded blocks in a skip mode, and forming a candidate motion vector set of a to-be-coded block in a skip mode; selecting a plurality of central motion vectors from the candidate motion vector set; creating a reference window with a preset size by taking each central motion vector as a center, and determining candidate motion vectors in the reference window as primary motion vectors; calculating the rate-distortion optimization cost of each primary selection motion vector, and determining a preset number of primary selection motion vectors with the minimum rate-distortion optimization cost as a target motion vector. By applying the method and the device, the time consumed by MV selection in the Skip mode and the time of inter-frame prediction are greatly reduced.
Description
technical field [0001] The present application belongs to the technical field of audio and video coding, and in particular relates to a motion vector selection method, device, electronic equipment and storage medium. Background technique [0002] AVS (Audio Video coding Standard, audio and video coding standard) is the abbreviation of the "Advanced Audio and Video Coding of Information Technology" series of standards. It is the common basic standard of the digital audio and video industry. Significant optimization and substantial performance improvement have been made in the control of encoding and decoding complexity. [0003] In existing video standards (such as MPEG series and H.26x series), there is a skipped macroblock mode (Skipped Macroblock, skip mode). The so-called skipped macroblock refers to when this type of macroblock is encoded. There is no need to encode additional information (such as motion vectors or residuals). The skip mode only exists in P-frame images...
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IPC IPC(8): H04N19/513H04N19/52
CPCH04N19/513H04N19/52
Inventor 向国庆罗昕颉张广耀宋磊
Owner 杭州博雅鸿图视频技术有限公司