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Motion estimation with video mode detection

A video mode and motion compensation technology, applied to deinterlacing of video signals, used in the field of video, can solve problems such as poor results

Inactive Publication Date: 2013-11-27
ENTROPIC COMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the proposed method does not use motion compensation, the results are poor in moving video parts

Method used

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  • Motion estimation with video mode detection
  • Motion estimation with video mode detection
  • Motion estimation with video mode detection

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Experimental program
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Embodiment Construction

[0044] Such as figure 1 The block matchers shown in were introduced earlier. Candidate vector Connect the block 4 in the current image n with the test block 10 in the search area 6 in the previous image n-1. The correlation metric, the matching error between two blocks 4, 10, can be optimized to identify the best candidate vector In this way, it is possible to test using different candidate vectors different test blocks 10, and for the best matching candidate vector, the matching error can be minimized.

[0045] Searching for a minimum matching criterion in a block matcher is a two-dimensional optimization problem for which many solutions are available. One possible implementation is to use a three-step block matcher, 2D logarithmic, or cross search method, or block matches one at a time. Different block matching strategies are disclosed in "Progress in Motion Estimation for Consumer Video Format Conversion" by G. de Haan (IEEE transactions on consumer electronics, Aug...

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Abstract

The invention relates to a method for providing a motion parameter set and / or a picture repetition pattern from an input video signal, in particular for de-interlacing a video signal with using a candidate motion parameter set weighted with a picture repetition pattern value for calculating a motion compensated pixel from a pixel value of a first image. To provide motion compensation which accounts for field repetition patterns, minimizing an error criterion between at least one pixel value of a second image and at least the motion compensated pixel value by iterating the calculation of the motion compensated pixel with at least two candidate motion parameters sets and / or at least two picture repetition values, and putting out the candidate motion parameter set and / or the picture repetition value which provides the minimized error criterion is proposed.

Description

technical field [0001] The present invention relates to a method of providing motion parameter sets and / or picture repetition patterns from an input video signal by deriving motion compensated pixels from pixel values ​​of a first image using candidate motion parameter sets weighted with picture repetition pattern values , especially methods for deinterlacing video signals. [0002] The invention also relates to a computer program and a computer program product for providing motion parameter sets and / or picture repeat patterns from an input video signal, in particular for deinterlacing a video signal, the program comprising Instructions adapted to cause the processor to derive motion compensated pixels from pixel values ​​of the first image using the set of candidate motion parameters weighted by the picture repeat pattern value. [0003] Finally, the invention relates to a computer or an integrated circuit for providing a motion parameter set and / or a picture repetition patt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/36H04N7/01G06T7/20H04N5/14H04N5/44H04N19/51
CPCH04N19/00048H04N19/00587H04N19/00703H04N19/00733H04N19/51H04N19/112H04N19/521H04N7/01
Inventor G·德哈安C·休胡
Owner ENTROPIC COMM INC