KR960013065A - Motion Estimation Method in Contour Coding - Google Patents

Motion Estimation Method in Contour Coding Download PDF

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Publication number
KR960013065A
KR960013065A KR1019940023322A KR19940023322A KR960013065A KR 960013065 A KR960013065 A KR 960013065A KR 1019940023322 A KR1019940023322 A KR 1019940023322A KR 19940023322 A KR19940023322 A KR 19940023322A KR 960013065 A KR960013065 A KR 960013065A
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KR
South Korea
Prior art keywords
contour
image
pixels
motion estimation
estimation method
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KR1019940023322A
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Korean (ko)
Inventor
정해묵
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019940023322A priority Critical patent/KR960013065A/en
Publication of KR960013065A publication Critical patent/KR960013065A/en

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Abstract

본 발명은 윤곽이 부호화된 이전의 영상을 윤곽이 부호화되지 않은 현재의 원 영상과 비교하여 영상의 변형으로 인한 악영향을 최소화할 수 있도록 한 윤곽선 부호화에서의 움직임 추정방법에 관한 것으로, 이는 하기와 같은 비교동작을 수행하여 영역 부호화시 생긴 영상의 변형으로 인한 악영향을 최소화시킴으로써, 보다 선명한 윤곽의 부호화를 통해 부호화로 인한 화질열화를 방지한 것이다.The present invention relates to a motion estimation method in contour coding, which compares a previous image having a contour coded with a current original image without a coded contour, thereby minimizing adverse effects due to deformation of the image. By performing the comparison operation to minimize the adverse effect due to the deformation of the image generated during the region encoding, the image quality degradation due to the encoding is prevented through the encoding of the sharper contour.

(여기에서, PBi는 윤곽이 부호화된 이전의 영상에서 임의의 영역내에 있는 픽셀 중 i번째 픽셀, PCi는 윤곽이 부호화되지 않은 현재의 영상에서 임의의 영역내에 있는 픽셀 중 i번째 픽셀, i는 그 영역내의 픽셀 갯수, th1, th2는 임의의 경계값을 각각 의미함.)(Wherein, P Bi is the i-th pixel of the pixels within any region in the previous image in which the contour is coded P Ci is the i-th pixel of the pixels within a certain region in a current picture is not the contour is coded, i Is the number of pixels in the area, and th1 and th2 mean arbitrary boundary values respectively.)

Description

윤곽선 부호화에서의 움직임 추정방법Motion Estimation Method in Contour Coding

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 윤곽 부호화에서의 움직임 추정방법을 수행하기 위한 블럭도.3 is a block diagram for performing a motion estimation method in contour coding according to the present invention.

Claims (2)

각 영상의 윤곽선을 추출하여 각 영상의 특성에 따라 부호화하는 윤곽선 부호화에서의 움직임 추정방법에 있어서, 윤곽이 부호화된 이전의 영상과 윤곽이 부호화되지 않은 현재의 영상을 비교하는 비교과정과; 상기 비교과정에서 윤곽이 부호화된 이전의 영상과 윤곽이 부호화되지 않은 현재의 원 영상이 비슷하다고 판단되면 같은 영역으로 처리하여 전송하고, 비슷하지 않다고 판단되면 윤곽이 부호화된 현재의 영상을 전송하는 과정으로 이루어진 윤곽선 부호화에서의 움직임 추정방법.CLAIMS 1. A motion estimation method in contour coding for extracting contours of each image and encoding them according to characteristics of each image, the motion estimation method comprising: comparing a previous image having a contour encoded with a current image having no contour encoded therein; In the comparison process, if it is determined that the previous image of which the contour is encoded and the current original image of which the contour is not encoded are similar, the process is transmitted to the same area. Motion estimation method in contour coding consisting of. 제1항에 있어서, 상기 비교 과정은, 하기 식에 의해 수행되는 것을 특징으로 하는 윤곽 부호화에서의 움직임 추정방법.The method of claim 1, wherein the comparing process is performed by the following equation. (여기에서, PBi는 윤곽이 부호화된 이전의 영상에서 임의의 영역내에 있는 픽셀 중 i번째 픽셀, PCi는 윤곽이 부호화되지 않은 현재의 영상에서 임의의 영역내에 있는 픽셀 중 i번째 픽셀, i는 그 영역내의 픽셀 갯수, th1, th2는 임의의 경계값을 각각 의미함.)Where P Bi is the i th pixel among pixels in any region in the previous image with contour coding, P Ci is the i th pixel among pixels in any region in the current image without contour coding, i Is the number of pixels in the area, and th1 and th2 mean arbitrary boundary values respectively.) ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940023322A 1994-09-15 1994-09-15 Motion Estimation Method in Contour Coding KR960013065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940023322A KR960013065A (en) 1994-09-15 1994-09-15 Motion Estimation Method in Contour Coding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940023322A KR960013065A (en) 1994-09-15 1994-09-15 Motion Estimation Method in Contour Coding

Publications (1)

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KR960013065A true KR960013065A (en) 1996-04-20

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KR1019940023322A KR960013065A (en) 1994-09-15 1994-09-15 Motion Estimation Method in Contour Coding

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