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Method and device for generating a motion-compensated video frame

A motion compensation, video frame technology, used in color TV parts, TV system parts, digital video signal modification and other directions, can solve low spatial resolution, real-time hardware implementation algorithm optimization, interpolation pixel motion vector errors, etc. problems, to achieve the effect of improving accuracy, improving precision, and reducing noise

Active Publication Date: 2016-10-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first problem is visible blockiness, since motion estimation has low spatial resolution, i.e., block
The second issue is the visible effect of covered and uncovered areas
The third issue is algorithm optimization for real-time hardware implementation
This method produces errors for motion vectors passing through objects and / or interpolating pixels in uncovered areas

Method used

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  • Method and device for generating a motion-compensated video frame
  • Method and device for generating a motion-compensated video frame
  • Method and device for generating a motion-compensated video frame

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Embodiment Construction

[0077] The following detailed description is presented in conjunction with the accompanying drawings, which form a part hereof, and show by way of illustration specific aspects in which the invention may be practiced. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not to be taken as limiting, but the scope of the present invention is defined by the appended claims.

[0078] The devices and methods described herein may be based on motion compensation and motion vector interpolation. It should be understood that notes related to a described method may also apply to a corresponding device or system for performing the method, and vice versa. For example, if specific method steps are described, a corresponding device may include means for performing the described method steps, even if such means are not explicitly de...

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Abstract

The invention relates to a method (2000) for generating a motion-compensated video frame based on four successive frames of an original video sequence, the four successive frames comprising a first frame A, a second frame B, a third frame C and a fourth frame D, the method comprising: obtaining (2001) three successive motion estimation pairs, wherein a first pair comprises a forward motion vector field A_FWD from A to B and a backward motion vector field B_BCK from B to A, wherein a second pair comprises a forward motion vector field B_FWD from B to C and a backward motion vector field C_BCK from C to B and wherein a third pair comprises a forward motion vector field C_FWD from C to D and a backward motion vector field D_BCK from D to the C; and generating the motion-compensated video frame based on interpolating (2003) between the frames B and C, using the three successive motion estimation pairs.

Description

technical field [0001] The present invention relates to a method and apparatus for generating motion compensated video frames. The invention also relates to the field of motion vector interpolation in the field of image or video processing, or more particularly in the field of image interpolation with motion compensation applied in frame rate converters or image interpolation devices. Background technique [0002] Motion-compensated video interpolation is used to improve video quality, for example, to provide jitter-free video in situations such as video processing or to reduce the amount of data in situations such as video compression. figure 1 A method of motion compensated video interpolation 100 is shown. Motion compensated video interpolation 100 generally includes motion estimation 101 and motion compensation 103 . The video input 102 is stored in a video frame store which stores frames 104 , 106 , 108 , 110 of the video input 102 . Motion estimation 101 and motion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14H04N19/51H04N7/01
CPCH04N5/145H04N7/014H04N19/573
Inventor 阿列克谢·维兰提诺维奇·门德兰克斯奇·米凯洛维奇·赛德诺
Owner HUAWEI TECH CO LTD
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