Motion estimator and motion estimating method thereof

A motion estimation, motion technology, applied in television, electrical components, digital video signal modification and other directions, can solve problems such as difficult to search for motion vectors

Inactive Publication Date: 2007-01-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of the conventional method is that it is difficult to search for the correct motion vector if the object moves or if text scrolling occurs on a moving background

Method used

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  • Motion estimator and motion estimating method thereof
  • Motion estimator and motion estimating method thereof
  • Motion estimator and motion estimating method thereof

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Embodiment Construction

[0052] The matters in this description as examples are provided to facilitate a comprehensive understanding of the exemplary embodiments of the present invention disclosed with reference to the accompanying drawings. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the exemplary embodiments described herein can be made without departing from the spirit and scope of the claimed invention. Descriptions of known functions and constructions are omitted for clarity and conciseness.

[0053] Now, will refer to figure 2 and image 3 A motion estimator and a motion estimation method according to the first exemplary embodiment of the present invention will be described.

[0054] figure 2 is a control block diagram of the motion estimator according to the first exemplary embodiment of the present invention. Such as figure 2 As shown, the motion estimator includes: an arbitrary motion estimation unit 10 , an average motion c...

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Abstract

A motion estimator and motion estimating method are provided for dividing a current frame into a plurality of blocks and estimating motion by comparing a current block with a previous frame. The motion estimator comprises a mean motion estimation unit for computing a mean motion vector based on motion vectors of surrounding blocks adjacent to the current block, a line motion generation unit for generating a line motion vector in a predetermined search area based on motion vectors of horizontal blocks of the current block, and a motion vector selection unit for selecting and outputting one of the mean motion vector and the line motion vector as a final motion vector of the current block based on a mean motion expectation error value in accordance with the mean motion vector and a line motion expectation error value in accordance with the line motion vector. Aspects of the present invention provide a motion estimator for searching correct motion vectors in the case of moving objects or occurrence of scrolling text against a moving background.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2005-0061088 filed with the Korean Intellectual Property Office on Jul. 7, 2005, which is hereby incorporated by reference in its entirety. technical field [0002] The invention relates to a motion estimator and a motion estimation method thereof. More particularly, the present invention relates to a motion estimator for searching a correct motion vector and a motion estimation method thereof. Background technique [0003] In general, converting a frame rate using a frame rate converter in a display device by improving timing, gray-scale representation, etc. can make a display panel excellent. To this end, motion estimation and compensation techniques using block-unit motion vectors are applied to the frame rate converter and de-interleaver so that natural moving images can be displayed. However, conventional motion estimation and compensation tec...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26
CPCH04N19/00587H04N19/51
Inventor 金命哉孙永旭成和锡闵钟述姜政佑
Owner SAMSUNG ELECTRONICS CO LTD
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