KR970057876A - Error Compensator Using Edge in Video Decoder - Google Patents

Error Compensator Using Edge in Video Decoder Download PDF

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Publication number
KR970057876A
KR970057876A KR1019950052070A KR19950052070A KR970057876A KR 970057876 A KR970057876 A KR 970057876A KR 1019950052070 A KR1019950052070 A KR 1019950052070A KR 19950052070 A KR19950052070 A KR 19950052070A KR 970057876 A KR970057876 A KR 970057876A
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KR
South Korea
Prior art keywords
block
error
current screen
edge
screen block
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Application number
KR1019950052070A
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Korean (ko)
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KR100197367B1 (en
Inventor
박충수
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배순훈
대우전자 주식회사
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Priority to KR1019950052070A priority Critical patent/KR100197367B1/en
Publication of KR970057876A publication Critical patent/KR970057876A/en
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Publication of KR100197367B1 publication Critical patent/KR100197367B1/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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

본 발명은 에지 방향을 이용하여 영상의 연속성을 정확하게 구현할 수 있는 영상복호기에서의 에지를 이용한 에러보상장치에 관한 것으로, 이를 해결하기 위하여 복원된 화면블럭의 에지를 검출하기 위하여 마스크를 생성하여 제공하는 마스크 생성부(120), 상기 디코딩되어 입력되는 현재 화면블럭과 마스크 생성부(120)로부터 제공되는 각각의 마스크에 의거하여 현재 화면블럭의 에지의 방향정보를 검출하는 에지방향 검출부(140), 상기 디코딩된 현재 화면블럭과 에지방향 검출부(140)의 에지의 방향정보에 의해서 현재 화면블럭에 대한 에러발생신호를 출력하는 블럭단위 에러검출부(160), 블럭단위 에러검출부(160)의 에러발생신호에 의거하여 현재 화면블럭을 이전 영상신호의 동일 위치 블럭으로 대치시켜 출력하는 에러보정부(180), 상기 보정된 보정블럭을 디스플레이 하는 디스플레이 장치(200)를 포함함으로써 디지탈 영상 처리 과정에서 에러에 의한 손상된 부분을 복원시킬 수 있는 효과가 있다.The present invention relates to an error compensator using edges in an image decoder that can accurately implement continuity of an image using an edge direction. To solve this problem, a mask is generated to detect an edge of a reconstructed screen block. An edge direction detection unit 140 for detecting direction information of an edge of a current screen block based on a mask generated by the mask generator 120 and the mask provided from the decoded input current screen block and the mask generator 120, The error detection signal of the block unit error detection unit 160 and the block unit error detection unit 160 outputting an error generation signal for the current screen block by the decoded current screen block and the edge direction information of the edge direction detection unit 140. An error correction unit 180 for replacing the current screen block with the same position block of the previous video signal and outputting By including a display device 200 for displaying Luck there is an effect that it is possible to restore the damaged portion by error in the digital image processing.

Description

영상복호기에서의 에지를 이용한 에러보상장치Error Compensator Using Edge in Video Decoder

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

제1도는 본 발명에 따른 영상복호기에서의 에지를 이용한 에러보상장치도.1 is an error compensator using edges in an image decoder according to the present invention.

Claims (1)

부호화되어 입력되는 영상데이타를 디코더(100)에 의해 블럭 단위로 복원하는 영상복호기에 있어서, 상기 복원된 화면블럭의 에지를 검출하기 위하여 소정의 마스크를 생성하여 제공하는 마스크 생성부(120)와; 상기 디코더(100)로부터 디코딩되어 입력되는 현재 화면블럭과 상기 마스크 생성부(120)로부터 제공되는 각각의 마스크에 의거하여 상기 현재 화면블럭의 에지의 방향정보를 검출하는 에지방향 검출부(140)와; 상기 디코더(100)에 의해 디코딩된 현재 화면블럭과 상기 에지방향 검출부(140)로부터의 에지의 방향정보에 의해서 상기 현재 화면 블럭에 대한 에러 발생신호를 출력하는 블럭 단위 에러검출부(160)와; 상기 블럭단위 에러검출부(160)의 에러발생신호에 의거하여 상기 현재 화면블럭을 이전 영상신호의 동일 위치블럭으로 대치시켜 출력하는 에러보정부(180)와; 상기 에러보정부(180)로부터 출력되는 보정된 보정블럭을 디스플레이하는 디스플레이장치(200)를 포함함을 특징으로 하는 영상복호기에서의 에지를 이용한 에러보상장치.An image decoder for reconstructing encoded image data in block units by a decoder (100), comprising: a mask generator (120) for generating and providing a predetermined mask to detect an edge of the restored screen block; An edge direction detection unit (140) for detecting direction information of an edge of the current screen block based on a current screen block decoded from the decoder (100) and a mask provided from the mask generator (120); A block unit error detection unit (160) for outputting an error generation signal for the current screen block based on the current screen block decoded by the decoder (100) and the edge direction information from the edge direction detection unit (140); An error correction unit 180 for replacing the current screen block with the same position block of the previous video signal and outputting the same based on the error occurrence signal of the block unit error detection unit 160; And a display device (200) for displaying a corrected correction block output from the error correction unit (180). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950052070A 1995-12-19 1995-12-19 Apparatus for compensating error by using edge in image decoder KR100197367B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950052070A KR100197367B1 (en) 1995-12-19 1995-12-19 Apparatus for compensating error by using edge in image decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950052070A KR100197367B1 (en) 1995-12-19 1995-12-19 Apparatus for compensating error by using edge in image decoder

Publications (2)

Publication Number Publication Date
KR970057876A true KR970057876A (en) 1997-07-31
KR100197367B1 KR100197367B1 (en) 1999-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706720B1 (en) * 2005-09-15 2007-04-12 한양대학교 산학협력단 A Spatial Error Concealment Technique Using Edge-Oriented Interpolation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101467214B1 (en) * 2007-12-06 2014-12-01 엘지디스플레이 주식회사 Apparatus and method of liquid crystal display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706720B1 (en) * 2005-09-15 2007-04-12 한양대학교 산학협력단 A Spatial Error Concealment Technique Using Edge-Oriented Interpolation

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