KR970014398A - Motion vector estimation device using contour of object - Google Patents

Motion vector estimation device using contour of object Download PDF

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Publication number
KR970014398A
KR970014398A KR1019950028345A KR19950028345A KR970014398A KR 970014398 A KR970014398 A KR 970014398A KR 1019950028345 A KR1019950028345 A KR 1019950028345A KR 19950028345 A KR19950028345 A KR 19950028345A KR 970014398 A KR970014398 A KR 970014398A
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KR
South Korea
Prior art keywords
motion vector
region
contour
input
image frame
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KR1019950028345A
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Korean (ko)
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KR100208984B1 (en
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조홍규
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배순훈
대우전자 주식회사
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Priority to KR1019950028345A priority Critical patent/KR100208984B1/en
Publication of KR970014398A publication Critical patent/KR970014398A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access

Abstract

본 발명은 물체의 윤곽선을 이용한 움직임 벡터 추정장치에 관한 것으로, 입력된 현재 영상 프레임의 블럭에서 물체의 윤곽선을 검출하여 출력하는 에지검출부(10)와; 상기 물체의 윤곽선을 기준으로 그 주위 영역을 결정하여 출력하는 영역결정부(20); 입력된 현재 영상 프레임을 딜레이시켜 이전 영상 프레임을 출력하는 프레임메모리(30)및; 상기 영역결정부(20)로부터 입력된 영역과 가장 일치하는 영역을 상기 프레임메모리(30)로부터 입력된 이전 영상 프레임의 탐색 구간에서 탐색하여 가장 일치하는 영역을 추정하고 그 위치로부터 움직임 벡터를 추정하여 출력하는 움직임 벡터 추정부(40)를 포함하여 구성되어, 물제의 윤곽선을 중심으로 움직임 벡터를 추정함으로써 움직임 벡터를 추정하기 위한 연산량을 줄여 소프트웨어적으로 구현할 수 있을 뿐만 아니라 적은 양의 움직임 추정 전용 칩을 사용하여 하드웨어적으로 구현할 수 있는 것이다.The present invention relates to a motion vector estimating apparatus using an outline of an object, comprising: an edge detector 10 for detecting and outputting an outline of an object in a block of an input current image frame; An area determiner 20 which determines and outputs an area around the object based on the contour of the object; A frame memory 30 for delaying an input current video frame and outputting a previous video frame; The region that most matches the region input from the region determiner 20 is searched in the search section of the previous image frame input from the frame memory 30 to estimate the region that most matches, and the motion vector is estimated from the position. It includes a motion vector estimator 40 for outputting, by estimating the motion vector around the outline of the object to reduce the amount of computation for estimating the motion vector can be implemented in software as well as a small amount of motion estimation dedicated chip It can be implemented in hardware using.

Description

물체의 윤곽선을 이용한 움직임 벡터 추정 장치Motion vector estimation device using contour of object

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 물체의 윤곽선을 이용한 움직임 벡터 추정 장치의 1실시예의 개략적인 구성도,3 is a schematic structural diagram of an embodiment of a motion vector estimating apparatus using contours of an object according to the present invention;

제4도는 본 발명에 따른 움직임 벡터 추정 장치의 동작을 설명하기 위한 영상 프레임의 블럭을 도시한 것으로, (가)는 이전 영상 프레임의 블럭을 도시한 것이고, (나)는 현재 영상 프레임의 블럭을 도시한 것이며,4 is a block of an image frame for explaining the operation of the motion vector estimation apparatus according to the present invention. (A) shows a block of a previous image frame, and (B) shows a block of a current image frame. Shown,

제5도는 본 발명에 따른 움직임 벡터 추정 장치의 2실시예의 개략적인 구성도이다.5 is a schematic structural diagram of a second embodiment of a motion vector estimating apparatus according to the present invention.

Claims (3)

이전 영상과 현재 영상을 비교하여 물체의 움직임에 관한 정보인 움직임 벡터를 추정하는 장치에 있어서, 입력된 현재 영상 프레임의 블럭에서 물체의 윤곽선을 검출하여 출력하는 에지검출부(10)와; 상기 물체의 윤곽선을 기준으로 그 주위 영역을 결정하여 출력하는 영역결정부(20); 입력된 현재 영상 프레임을 딜레이시켜 이전 영상 프레임을 출력하는 프레임메모리(30) 및; 상기 영역결정부(20)로부터 입력된 영역과 가장 일치하는 영역을 상기 프레임메모리(30)로부터 입력된 이전 영상 프레임의 탐색구간에서 탐색하여 가장 일치하는 영역을 추정하고 그 위치로부터 움직임 벡터를 추정하여 출력하는 움직임 벡터 추정부(40)를 포함하여 구성된 것을 특징으로 하는 물체의 윤곽선을 이용한 움직임 벡터 추정 장치.An apparatus for estimating a motion vector that is information about an object's movement by comparing a previous image with a current image, the apparatus comprising: an edge detector (10) for detecting and outputting an outline of an object in a block of an input current image frame; An area determiner 20 which determines and outputs an area around the object based on the contour of the object; A frame memory 30 for delaying an input current image frame and outputting a previous image frame; The region that most matches the region input from the region determiner 20 is searched in the search section of the previous image frame input from the frame memory 30 to estimate the region that most matches, and the motion vector is estimated from the position. Motion vector estimation device using the contour of the object, characterized in that it comprises a motion vector estimator (40) to output. 제1항에 있어서, 상기 영역결정부(20)는 상기 물체의 윤곽선을 기준으로 그 주위 3×3 픽셀 값으로 영역을 결정하도록 된 것을 특징으로 하는 물체의 윤곽선을 이용한 움직임 벡터 추정 장치.The motion vector estimation apparatus of claim 1, wherein the area determiner is configured to determine an area by a 3 × 3 pixel value based on the contour of the object. 제1항에 있어서, 상기 영역결정부(20)로부터 입력된 영역을 서브 샘플링하여 출력하는 제1 필터부(25)와, 상기 프레임 메모리(30)에서 출력된 이전 영상 프레임을 서브 샘플링 하여 출력하는 제2 필터부(35)를 추가된 것을 특징으로 하는 물체의 윤곽선을 이용한 움직임 벡터 추정 장치.The method of claim 1, wherein the first filter unit 25 subsamples the region input from the region determiner 20 and outputs the sub-sampled previous image frame output from the frame memory 30. Motion vector estimation device using the contour of the object, characterized in that the second filter unit 35 is added. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950028345A 1995-08-31 1995-08-31 Moving vector estimator using contour of object KR100208984B1 (en)

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Application Number Priority Date Filing Date Title
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KR100208984B1 KR100208984B1 (en) 1999-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295421B1 (en) * 2012-06-12 2013-08-09 최진선 Self-assembly fire pot for multipurpose

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100581897B1 (en) * 2003-11-29 2006-05-23 삼성에스디아이 주식회사 Image processing apparatus for display panel
KR102474837B1 (en) 2015-09-14 2022-12-07 주식회사 한화 Foreground area extracting method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295421B1 (en) * 2012-06-12 2013-08-09 최진선 Self-assembly fire pot for multipurpose

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