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A Motion Vector Post-processing System Utilizing Neighborhood Motion Information

A motion vector and motion information technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as inability to guarantee motion vector, achieve easy hardware implementation, improve throughput and running speed, and avoid excessive smoothing. Effect

Active Publication Date: 2018-07-13
SHANGHAI JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

However, motion estimation modules in frame rate up-conversion devices generally use block matching algorithms, which are simple and easy to implement, but cannot guarantee true motion vectors

Method used

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  • A Motion Vector Post-processing System Utilizing Neighborhood Motion Information
  • A Motion Vector Post-processing System Utilizing Neighborhood Motion Information
  • A Motion Vector Post-processing System Utilizing Neighborhood Motion Information

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0045] like figure 1 As shown, the present embodiment provides a motion vector post-processing system utilizing neighborhood motion information, including a two-stage pipeline structure of vector thinning and vector smoothing, which is divided at the thinning vector buffer. Wherein: the vector refinement pipeline includes a masking mode discrimination module, a vector refinement module and a vector refinement cache module; the vector smoothing pipeline includes a filter coefficient calculation mod...

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Abstract

The present invention provides a motion vector post-processing system using neighborhood motion information, which includes a two-stage pipeline structure of vector thinning and vector smoothing. Smoother motion vector; wherein: the vector refinement part selects the neighborhood vector at a specific position to decompose the motion of the current block by 1 / 4 by detecting the occlusion mode of the neighborhood; the vector smoothing part refines the current block by quantizing the neighborhood The influence of the 1 / 16 sub-block is used to determine the optimal filter coefficient, thereby further decomposing to obtain the motion vector of the 1 / 16 sub-block. The motion vector post-processing system using neighborhood motion information described in the present invention only needs a small amount of memory, look-up table and operation logic to realize, and can obtain better motion vector processing effect.

Description

technical field [0001] The present invention relates to the technical field of video post-processing, in particular to a motion vector post-processing system utilizing neighborhood motion information. Background technique [0002] Frame rate up-conversion is one of the effective technologies for overcoming motion blur in LCD (abbreviation for Liquid Crystal Display), and has been widely used in high-end digital TVs. The key to frame rate up-conversion technology is to obtain real motion vectors. However, the motion estimation module in the frame rate up-conversion device generally adopts the block matching algorithm, which is simple and easy to implement, but cannot guarantee the real motion vector. Therefore, motion vector post-processing technology becomes particularly important. In the frame rate up-conversion device, the post-processing of the motion vector follows the motion estimation backend, which requires the accuracy and smoothness of the motion vector to be effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/85
Inventor 郭勇陈立高志勇张小云薛培培
Owner SHANGHAI JIAOTONG UNIV
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