KR960006614A - Image coding device using contour - Google Patents

Image coding device using contour Download PDF

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Publication number
KR960006614A
KR960006614A KR1019940018641A KR19940018641A KR960006614A KR 960006614 A KR960006614 A KR 960006614A KR 1019940018641 A KR1019940018641 A KR 1019940018641A KR 19940018641 A KR19940018641 A KR 19940018641A KR 960006614 A KR960006614 A KR 960006614A
Authority
KR
South Korea
Prior art keywords
contour
low pass
image
unit
output
Prior art date
Application number
KR1019940018641A
Other languages
Korean (ko)
Other versions
KR0123096B1 (en
Inventor
정해묵
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940018641A priority Critical patent/KR0123096B1/en
Publication of KR960006614A publication Critical patent/KR960006614A/en
Application granted granted Critical
Publication of KR0123096B1 publication Critical patent/KR0123096B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/20—Contour coding, e.g. using detection of edges

Abstract

본 발명에 의한 윤곽선을 이용한 화상 부호화장치에서는 하나의 폐쇄 윤곽을 임의의 그레이 레벨로 메꾸어서 화상을 복원할 때 윤곽선 픽셀의 에지가 존재하는 경우에는 저역 통과필터링을 적용하지 않고 에지가 존재하지 않는 경우에만 저역 통과필터링을 적용함으로서, 그레이 레벨의 차이로 인해 윤곽선 경계에서 발생하는 허위윤곽을 감소시킨 것이다.In the image coding apparatus using the contour according to the present invention, when the edge of the contour pixel exists when the image is restored by filling one closed contour to an arbitrary gray level, the edge does not exist without applying low pass filtering. By applying low pass filtering only to, we reduce the false contour that occurs at the contour boundary due to the difference of gray level.

Description

윤곽선을 이용한 화상 부호화장치Image coding device using contour

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

제1도는 윤곽선을 이용한 종래의 화상 부호화장치를 나타낸 블럭도.1 is a block diagram showing a conventional picture coding apparatus using contour lines.

제2도는 윤곽선을 이용한 본 발명에 의한 화상 부호화장치를 나타낸 블럭도.2 is a block diagram showing a picture coding apparatus according to the present invention using an outline.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 윤곽선 구축부 12 : 윤곽선 충전부11: contour construction unit 12: contour charging unit

13 : 에지검출부 14 : 앤드게이트13 edge detection unit 14 end gate

15 : 저역 통과필터 16 : 멀티플렉서15 low pass filter 16 multiplexer

Claims (1)

윤곽선정보를 이용하여 원화상의 윤곽선화상을 구성하기 위한 윤곽선 구축부 ; 상기 윤곽선 구축부에 구축된 윤곽선화상을 내용정보를 이용하여 충전하기 위한 윤곽선 충전부 : 상기 윤곽선 충전부에서 출력되는 디코딩된 화상을 저역 통과필터링하기 위한 저역 통과필터 : 상기 윤곽선 충전부에서 출력되는 디코딩된 화상에 대한 윤곽선 픽셀의 주변에 존재하는 에지를 검출하기 위한 에지검출부 ; 상기 에지검출부의 출력과 상기 윤곽선정보를 입력한 다음 논리곱을 수행하여 그에 상응하는 선택신호를 발생하는 앤드게이트 ; 상기 앤드게이트에서 출력되는 선택신호에 따라 상기 윤곽선 충전부에서 출력되는 화상과 상기 저역 통과필터에서 출력되는 화상을 선택적으로 출력하기 위한 절환부로 이루어진 윤곽선을 이용한 화상 부호화장치.An outline construction unit for constructing a contour image of the original image using the contour information; Contour filling unit for charging the contour image constructed in the contour construction unit using the content information: Low pass filter for low pass filtering the decoded image output from the contour filling unit: To the decoded image output from the contour filling unit An edge detector for detecting edges present in the periphery of the contour pixels; An AND gate inputting the output of the edge detector and the contour information and performing a logical product to generate a selection signal corresponding thereto; And a switching unit for selectively outputting the image output from the contour charging unit and the image output from the low pass filter in accordance with the selection signal output from the AND gate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940018641A 1994-07-29 1994-07-29 Image encoder using contour KR0123096B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940018641A KR0123096B1 (en) 1994-07-29 1994-07-29 Image encoder using contour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940018641A KR0123096B1 (en) 1994-07-29 1994-07-29 Image encoder using contour

Publications (2)

Publication Number Publication Date
KR960006614A true KR960006614A (en) 1996-02-23
KR0123096B1 KR0123096B1 (en) 1997-11-17

Family

ID=19389311

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940018641A KR0123096B1 (en) 1994-07-29 1994-07-29 Image encoder using contour

Country Status (1)

Country Link
KR (1) KR0123096B1 (en)

Also Published As

Publication number Publication date
KR0123096B1 (en) 1997-11-17

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