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Video image motion compensation method and device

A technology of motion compensation and video image, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of unfavorable real-time video enhancement, large amount of calculation of motion compensation technology, etc., to achieve real-time realization and avoid huge calculation Amount, smooth visual mutation effect

Active Publication Date: 2018-02-13
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] A technical problem to be solved by the embodiment of the present invention is: solve the problem that the motion compensation technology based on the image block has a large amount of calculation, which is not conducive to real-time enhancement of the video

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  • Video image motion compensation method and device
  • Video image motion compensation method and device
  • Video image motion compensation method and device

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The relative arrangement of the components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0025] Meanwhile, it should be understood tha...

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Abstract

The invention discloses a video image motion compensation method and device, which relate to the field of video image processing. The method includes: decoding the received video stream to obtain the current video frame to be displayed and its next video frame; according to the frame type of the next video frame and the decoded motion vector information of the current video frame to be displayed and the next The motion vector information of the video frame estimates the motion vector at each pixel position between the current video frame to be displayed and the next video frame; according to the estimated motion vector, the current video frame to be displayed and the next video frame Superimpose and display the superimposed video frames on the screen. The present invention estimates inter-frame motion vectors directly according to motion vectors generated during video decoding, and performs motion compensation according to the estimated motion vectors, which can avoid huge computation load of recalculating motion vectors, and is beneficial to real-time realization of software and hardware.

Description

technical field [0001] The present invention relates to the field of video image processing, in particular to a method and device for motion compensation of video images. Background technique [0002] At present, embedded devices, such as mobile phones, tablet computers, etc., are limited by the limited computing power of software and hardware when conducting real-time video communication. For some commonly used encoding formats, such as h.263, h.264, etc., they can only support The encoding form of unidirectional prediction, that is, the video stream only contains key frames (I frames for short) and forward prediction frames (P frames for short). A typical sequence of video frame transmission is: I→P→P→…→P→I→P→P→P…. The one-way prediction error will become stronger with the increase of P frames. When the next I-frame arrives, there is a noticeable difference in image quality between the last P-frame and the I-frame, which significantly degrades the visual quality of the v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/51H04N19/513
Inventor 屈振华龙显军陈珣万军马涛孙健梅平贺征李屹寰白冰桂烜江洪陈宇华郭英尹梅钟远晖余冬苹张海涛林涛许捷翰刘豪叶文超梁铮
Owner CHINA TELECOM CORP LTD
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