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Frame rate up-conversion method based on adaptive motion estimation

A motion estimation, adaptive technology, applied in the direction of image communication, digital video signal modification, electrical components, etc., can solve problems such as holes, overlapping blocks, motion blur, etc.

Inactive Publication Date: 2014-09-24
SHANDONG UNIV
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Motion-based frame rate enhancement methods can effectively improve video quality, but at the same time, problems such as motion blur, block effects, holes, overlapping blocks, etc.

Method used

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  • Frame rate up-conversion method based on adaptive motion estimation
  • Frame rate up-conversion method based on adaptive motion estimation
  • Frame rate up-conversion method based on adaptive motion estimation

Examples

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Embodiment Construction

[0025] The present invention adopts the adaptive motion estimation method according to the richness of the image texture, and then obtains the best motion vector through the multi-directional expansion block motion vector repair method, then performs motion estimation on the holes and overlapping block areas, and inserts frames through motion compensation, which is effective It solves the problems of holes and overlapping blocks, plays a role in reducing ghost effects and block effects, and achieves the goal of reconstructing high-quality and high-frame-rate videos.

[0026] The present invention will be further described below in conjunction with specific embodiments (but not limited to this example) and accompanying drawings.

[0027] (1) Processing of original digital images:

[0028] (1) read in the video;

[0029] (2) Set the counter t=1, save the tth frame in turn as the current frame, denoted as f t ; The t+2th frame is used as the next frame, denoted as f t+2 ;Reser...

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Abstract

The invention provides a frame rate up-conversion method which comprises the following four steps: adaptive motion estimation is performed by adoption of a texture classification method based on edge detection to obtain motion vectors; motion vector post-processing is performed, namely, inaccurate motion vectors are corrected by adoption of a multi-direction extent motion vector repairing method; motion vectors of a hole area and an overlapped block area are estimated; and motion compensation is performed according to the obtained motion vectors to synthesize an insert frame. By adopting the frame rate up-conversion method provided by the invention, the problems such as motion blur, block effect, hole and overlapped block caused by the traditional frame rate up-conversion method can be effectively solved, and the quality of synthetic videos is greatly improved.

Description

technical field [0001] The invention relates to a method for increasing frame rate video, which belongs to the field of video data processing. Background technique [0002] Frame rate upscaling is a video post-processing method that improves video quality by increasing the video frame rate. Due to the limitations of the hardware conditions of the liquid crystal display itself, motion blur and motion jitter will appear when playing violently moving videos, which are called phantom effects, which will seriously affect the viewing effect of end users. The frame rate improvement technology can effectively reduce the ghost effect and improve the video quality by increasing the original video frame rate; under the condition that the channel bandwidth is limited, the amount of transmitted data must be reduced at the encoding end, and only part of the video content is transmitted, so at the decoding end The complete video content can be recovered through the frame rate improvement ...

Claims

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Application Information

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IPC IPC(8): H04N19/85H04N19/513H04N19/14H04N19/583H04N19/563H04N19/154
Inventor 孙国霞赵悦刘琚伯君葛菁王梓周舟
Owner SHANDONG UNIV
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