Video encoding and decoding method, video encoding and decoding device

A technology for video coding and coding blocks, which is applied in the fields of video coding and decoding devices and video coding and decoding methods, and can solve problems such as unfavorable video sequence coding.

Active Publication Date: 2020-09-08
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the inventors of the present application found that for video sequences with different content characteristics, the use of fixed motion vector precision is not conducive to the encoding of video sequences

Method used

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  • Video encoding and decoding method, video encoding and decoding device
  • Video encoding and decoding method, video encoding and decoding device
  • Video encoding and decoding method, video encoding and decoding device

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Embodiment Construction

[0270] Embodiments of the present invention provide a video encoding and decoding method, and a video encoding and decoding device, capable of encoding and decoding in combination with video characteristics.

[0271] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0272] Each will be described in detail below.

[0273] The terms "first", "second", "third" and "fourth" in the specificat...

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Abstract

The embodiment of the invention discloses a video encoding and decoding method, and a video encoding and decoding device. The method in the embodiment of the present invention includes: acquiring the current image, and acquiring the motion vector accuracy of the current image according to the current image, the motion vector accuracy includes a set of search steps, and each search step in the set of search steps is smaller than One pixel unit; obtain the current block and the reference image of the current block; determine the search starting point in the reference image, and search for the target integer pixel point with a pixel unit as the search step from the search starting point; according to the motion Search for the matching block of the current block starting from the target integer pixel with vector accuracy; obtain the motion vector information and the prediction residual signal, and write the information of the reference image, the motion vector information and the prediction residual signal The input stream, the information of the reference image is used to indicate the reference image. The embodiments of the present invention can perform encoding and decoding in combination with video characteristics.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a video encoding and decoding method, and a video encoding and decoding device. Background technique [0002] With the rapid development of Internet technology and the increasingly rich material and spiritual culture of people, there are more and more requirements for video applications on the Internet, especially for high-definition video applications, and the data volume of high-definition video is very large. To be able to transmit in the Internet with limited bandwidth, the problem that must be solved first is the problem of high-definition video compression and encoding. Currently, there are two international organizations dedicated to the formulation of video coding standards, namely the International Organization for Standardization (ISO) / International Electrotechnical Commission (IEC) The Motion Picture Experts Group (Motion Picture Experts Group, referr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/136H04N19/105H04N19/567H04N19/533H04N19/513
CPCH04N19/139H04N19/109H04N19/136H04N19/14H04N19/533H04N19/57H04N19/56H04N19/523H04N19/182
Inventor 王钊马思伟吕卓逸杨海涛
Owner HUAWEI TECH CO LTD
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