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Video data frame rate up conversion method based on system analysis and design (SAD) and video on demand (VOD) matching rules

A technology of video data and frame rate, which is applied in the field of computer technology and video processing, and can solve the problem that the best matching block is unsatisfactory and affects the accuracy of motion estimation, etc.

Inactive Publication Date: 2013-01-02
CHONGQING UNIV
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Problems solved by technology

This method only uses the SAD criterion in the motion estimation process, and can obtain more accurate motion vectors for general video data frame rate enhancement processing. The sensitivity of the SAD criterion to brightness changes leads to the calculation of the best matching block may be unsatisfactory, which in turn affects the accuracy of motion estimation

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  • Video data frame rate up conversion method based on system analysis and design (SAD) and video on demand (VOD) matching rules
  • Video data frame rate up conversion method based on system analysis and design (SAD) and video on demand (VOD) matching rules
  • Video data frame rate up conversion method based on system analysis and design (SAD) and video on demand (VOD) matching rules

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Embodiment Construction

[0048] The processing flow of the video data frame rate promotion method based on SAD and VOD matching criteria in the present invention is as follows figure 1 shown, including the following steps:

[0049] S1) Extract the current frame F from the video data N and the previous frame F of the current frame P As the current two reference frames, the reference frame F P and the reference frame F N . Visible, reference frame F P and the reference frame F N That is, two adjacent frames in the original video data.

[0050] S2) Create a blank frame to be inserted that has the same pixel size as the video image, and divide the blank frame to be inserted into several non-overlapping pixel blocks with m rows and n columns. In this step, in a common application environment, the row and column sizes of the divided blocks are the same, that is, m=n; but if it is for video data with special image pixel sizes, the divided blocks The row and column sizes can also be different, that is...

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Abstract

The invention relates to a video data frame rate up conversion method based on a system analysis and design (SAD) and video on demand (VOD) matching rules. The method comprises the following steps of: when two adjacent reference frames in video data are subjected to interpolation processing, performing matching block search processing on the two reference frames by a bidirectional motion estimation method according to an SAD matching rule to determine a standby matching block pair, and judging whether each block has brightness sensitivity; performing matching block search processing again on the blocks with the brightness sensitivity by the bidirectional motion estimation method based on a VOD matching rule to determine the corresponding final matching block pair; for the blocks without brightness sensitivity, directly taking the standby matching block pair as the final matching block pair; and determining a motion vector according to the final matching block pair corresponding to each block, and performing motion compensation. By utilizing the method, the block matching error, which is caused by illumination change, of the adjacent frames in a video image is reduced; the motion vector can be accurately estimated; and therefore, frames to be interpolated with relatively high quality can be obtained.

Description

technical field [0001] The invention relates to the fields of computer technology and video processing technology, in particular to a method for increasing the frame rate of video data based on SAD and VOD matching criteria. Background technique [0002] With the gradual improvement of people's living standards and the improvement of technology in the field of digital TV, people have put forward higher requirements for the definition and picture size of digital TV, which are specifically manifested in the requirement for larger display size and faster screen refresh rate , more brilliant and true colors, etc. Liquid crystal display (Liquid Crystal Display, LCD) has the advantages of small size and beautiful appearance, and has become the mainstream device in the flat panel display in the world today, gradually replacing the old-fashioned CRT display device, and is widely used in the display terminals of digital TV and communication equipment. Applications. However, the LCD...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01
Inventor 甘平曹鹏程徐子航李真真施志勇邓敏军田逢春黄扬帆
Owner CHONGQING UNIV
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