KR960006601A - Method and apparatus for encoding / decoding of image signal by bit division - Google Patents

Method and apparatus for encoding / decoding of image signal by bit division Download PDF

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KR960006601A
KR960006601A KR1019940016850A KR19940016850A KR960006601A KR 960006601 A KR960006601 A KR 960006601A KR 1019940016850 A KR1019940016850 A KR 1019940016850A KR 19940016850 A KR19940016850 A KR 19940016850A KR 960006601 A KR960006601 A KR 960006601A
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박동식
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김광호
삼성전자 주식회사
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • 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
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Abstract

화상신호 부/복호화에 있어서, 상기 화상신호의 입력 1바이트 데이타를 에너지가 많이 포함되어 있는 부분을 분리하기 위해 상, 하위 비트들로 분리하고, 상기 입력데이타에서 분리된 에너지가 많이 포함되어 있는 상위 부분 비트들을 이용하여 원래의 크기의 1바이트 데이타로 변환하되, 같은 패턴이 반복되도록 확률을 높이며, 상기 입력데이타에서 분리된 에너지가 낮게 포함되어 있는 하위비트를 이용하여 처리를 위해 원래 사이즈크기의 1바이트 데이타를 변환하여 같은 패턴이 반복되고 확률을 높인다. 상기 에너지가 많은 비트 변환출력을 무손실(Lossless) 부호화하고, 상기 에너지가 낮은 비트 변환부출력을 손실(Lossy)부호화한다. 상기 무손실 코딩출력을 상기 코딩과 같은 방법으로 무손실 디코딩하고, 상기 손실코딩출력을 코딩과 같은 방법으로 디코딩하며, 상기 무손실 코딩부의 에너지가 많이 포함되는 출력을 원래의 팩셀 데이타로 분리하여 동일 사이즈로 한다. 그리고 상기 비트분리화 손실 디코딩출력을 합성하도록 되어 있다.In the image signal encoding / decoding, the input 1-byte data of the image signal is divided into upper and lower bits to separate a portion containing a large amount of energy, and an upper portion including a large amount of energy separated from the input data. 1-bit data of the original size is converted using the partial bits, and the probability of repeating the same pattern is increased, and 1 bit of the original size size is processed for processing by using a lower bit containing low energy separated from the input data. By converting the byte data, the same pattern is repeated and the probability is increased. Lossless-encode the energy-rich bit conversion output, and lossy encode the low-energy bit conversion output. The lossless coding output is losslessly decoded in the same manner as the coding, the lossless coding output is decoded in the same manner as the coding, and the output containing a large amount of energy of the lossless coding unit is separated into original pack data so as to have the same size. . And synthesize the bit-separated lossy decoding output.

Description

비트분할에 의한 화상신호의 부/복호화 방법 및 장치Method and apparatus for encoding / decoding of image signal by bit division

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

제1도는 종래의 화상의 부호화예를 설명하기 위한 블럭도.1 is a block diagram for explaining a coding example of a conventional image.

제2도는 종래의 화상의 복호화예를 설명하기 위한 블럭도.2 is a block diagram for explaining a decoding example of a conventional picture.

제3도는 화상데이타 구성을 설명하기 위한 도면.3 is a diagram for explaining an image data configuration.

제4도는 본 발명에 따른 비블럭화 원리를 이용하고 무손실과 손실 부호화 방법을 사용한 코딩시스템도.4 is a coding system diagram using the nonblocking principle according to the present invention and using a lossless and lossy coding method.

제5도는 본 발명에 따른 비블럭화 원리를 이용하고 무손실과 손실 복호화 방법을 사용한 디코딩시스템.5 is a decoding system using a nonblocking principle according to the present invention and using a lossless and lossy decoding method.

Claims (10)

화상신호 부/복호화 장치에 있어서, 상기 화상신호의 입력 1바이트 데이타를 에너지가 많이 포함되어 있는 부분을 분리하기 위해 상, 하위 비트들로 분리해내는 입력데이타 비트 분할부(202)와, 상기 입력데이타 분할부(202)에서 분리된 에너지가 많이 포함되어 있는 상위 부분 비트들을 이용하여 원래의 크기의 1바이트 데이타로 변환하되, 같은 패턴이 반복되는 작용을 높이는 제1비트 분할부(204)와, 상기 입력데이타 분할부(202)에서 분리된 에너지가 적게 포함되어 있는 하위비트를 이용하여 처리를 위해 원래 사이즈크기의 1바이트 데이타를 변환하여 같은 패턴이 반복되고 확률을 높이는 제2비트 변환부(206)와, 상기 제1비트 변환부(204)의 출력을 무손실(Lossless) 부호화하는 무손실 코딩부(208)와, 상기 제2비트 변환부(206)의 출력을 손실(Lossy)부호화하는 손실 코딩부(210)와, 상기 무손실 코딩부(208)의 출력을 상기 코딩과 같은 방법으로 무손실 디코딩하는 무손실 디코딩부(212)와, 상기 손실코딩부(210)의 출력을 코딩과 같은 방법으로 디코딩하는 손실디코딩부(214)와, 상기 무손실 코딩부(208)의 에너지가 많이 포함되는 출력을 원래의 팩셀 데이타로 분리하여 동일 사이즈로 하는 비트분리기(216)와, 상기 비트분리기(216)와 손실 디코딩(214)의 출력을 합성하는 합성기(218)로 구성됨을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.An image signal encoder / decoder, comprising: an input data bit divider (202) for separating input one-byte data of the image signal into upper and lower bits to separate a portion containing a large amount of energy; A first bit divider 204 for converting 1-byte data of an original size by using upper portion bits containing a large amount of energy separated from the data divider 202, and enhancing an operation of repeating the same pattern; A second bit converter 206 for converting 1-byte data of the original size size for processing by using a lower bit containing less energy separated by the input data divider 202 and repeating the same pattern and increasing the probability. ), A lossless coding unit 208 for lossless coding the output of the first bit converter 204, and a lossy coding loss for the output of the second bit converter 206 A coding unit 210, a lossless decoding unit 212 for lossless decoding the output of the lossless coding unit 208 in the same manner as the coding, and decoding the output of the lossy coding unit 210 in the same manner as coding The lossy decoder 214, the bit-separator 216, and the bit-separator 216 that have the same size by dividing the output containing a large amount of energy from the lossless coding unit 208 into original fax data. And a synthesizer (218) for synthesizing the output of the decoding (214). 제1항에 있어서, 입력데이타 비트 분할부(202)가 입력단(201)의 데이타웨 전체 1바이트 중 최상위 부터 n비트를 래치하여 분리하는 래치회로(301)와, 상기 입력단(201)의 입력데이타에 대해 상기 래치회로(301)에서 래치한 다음 비트부터 n+2씩 증가시켜 입력되는 순서대로 쉬프트하여 n비트씩 분리출력하는 쉬프트 레지스터(303,307,311)와, 상기 쉬프트레지스터(303,307,311)의 출력을 래치하는 래치회로(305,309,313)로 구성됨을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.2. The latch circuit 301 of claim 1, wherein the input data bit divider 202 latches and separates the n bits from the most significant byte of all data bytes of the input terminal 201, and the input data of the input terminal 201. The latch circuit 301 latches the shift registers 303, 307, and 311, and shifts them in order of input by increasing the number of bits by n + 2 from the latch circuit 301, and latches the outputs of the shift registers 303, 307, and 311. And a latch circuit (305, 309, 313). 제1항에 있어서, 제1비트 변환부(204)가 상기 래치회로(301,303,307,311)의 출력을 가산하는 가산기(317)와, 상기 가산기(317)의 출력을 기록하는 제1메모리(319)로 구성됨을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.The memory device of claim 1, wherein the first bit converter 204 includes an adder 317 for adding the outputs of the latch circuits 301, 303, 307, and 311, and a first memory 319 for recording the output of the adder 317. An apparatus for encoding and decoding an image signal by bit division, characterized by the above-mentioned. 제1항에 있어서, 제2비트 변환부(206)가 제2메모리(315)로 구성됨을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.The apparatus of claim 1, wherein the second bit converter (206) comprises a second memory (315). 제1항에 있어서, 무손실 코딩부(208)에 무손실 코딩데이타의 구별을 위해 정보를 첨가하는 제1프리픽스 제공부(321)를 더 추가함을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.2. The decoding and decoding of an image signal by bit division according to claim 1, further comprising a first prefix providing unit 321 for adding information to the lossless coding unit 208 to distinguish lossless coding data. Device. 제1항에 있어서, 상기 손실코딩부(210)에 손실코딩 데이타의 구별을 위해 정보를 첨가하는 제2프리픽스 제공부(325)를 더 추가함을 특징으로 하는 비트분할에 의한 화상신호의 부/복호화 장치.2. The bit code division / decoding of an image signal according to claim 1, further comprising a second prefix providing unit 325 for adding information to the loss coding unit 210 to distinguish loss coding data. Decryption device. 화상신호와 무손실코딩부(209)와 손실 코딩부(210)와 연결되는 복호화 시스템에 있어서, 상기 무손실코딩부(208)의 출력을 무손실 디코딩하는 무손실디코딩부(212)와, 상기 손실 코딩부(210)의 출력을 손실 디코딩하는 손실 코딩부(214)와, 상기 무손실 디코딩부(212)에서 디코딩된 출력의 비트를 분리하는 비트분리기(216)와, 상기 비트분리기(216)의 출력과 상기 손실 디코딩부(214)의 출력을 합성하는 합성기(218)로 구성됨을 특징으로 하는 비트분할에 의한 화상신호의 복호화 장치.In the decoding system connected to the image signal, the lossless coding unit 209 and the lossy coding unit 210, a lossless decoding unit 212 for lossless decoding the output of the lossless coding unit 208, and the lossy coding unit ( A loss coding unit 214 for loss decoding the output of 210, a bit separator 216 for separating the bits of the output decoded by the lossless decoding unit 212, and an output and the loss of the bit separator 216. And a synthesizer (218) for synthesizing the output of the decoding unit (214). 화상신호 부/복호화 방법에 있어서, 상기 화상신호의 입력 1바이트 데이타를 에너지가 많이 포함되어 있는 부분을 분리하기 위해 상, 하위 비트들로 분리하는 제1과정과, 상기 입력데이타에서 분리된 에너지가 많이 포함되어 있는 상위 부분 비트들을 이용하여 원래의 크기의 1바이트 데이타로 변환하되, 같은 패턴이 반복되도록 하는 확률을 높이는 제2과정과, 상기 입력데이타에서 분리된 에너지가 낮게 포함되어 있는 하위비트를 이용하여 원래 사이즈크기의 1바이트 데이타를 변환하되, 같은 패턴이 반복되도록 확률을 높이는 제3과정과, 상기 제2과정의 출력을 무손실(Lossless) 부호화하는 제4과정과, 상기 제3과정의 출력을 손실(Lossy)부호화하는 제5과정과, 상기 제4과정의 무손실 코딩 출력을 상기 코딩시와 같은 방법으로 무손실 디코딩하는 제6과정과, 상기 제5과정의 손실코딩 출력을 코딩시와 같은 방법으로 손실디코딩하는 제7과정과, 상기 무손실 코딩된 에너지가 많이 포함되는 출력을 원래의 팩셀 데이타로 분리하여 동일 사이즈로 하는 제7과정과, 상기 제7과정의 비트분리된 값과 손실 디코딩값을 합성하는 제8과정으로 이루어짐을 특징으로 하는 방법.An image signal encoding / decoding method, comprising: a first process of separating input one-byte data of the image signal into upper and lower bits to separate a portion containing a large amount of energy, and energy separated from the input data The second process of converting the data into the one-byte data of the original size by using the higher part bits included in a large number, and increasing the probability of repeating the same pattern, and the lower bits containing low energy separated from the input data. A third process of converting 1-byte data of an original size using a third process to increase the probability of repeating the same pattern, a fourth process of lossless coding the output of the second process, and an output of the third process A fifth process of lossy coding a second process, and a sixth process of lossless decoding the lossless coding output of the fourth process in the same manner as in the coding A seventh process of lossy decoding the lossy coded output of the fifth process in the same manner as in coding; and a seventh process of dividing the output containing a large amount of lossless coded energy into original pack cell data to make the same size; And an eighth step of synthesizing the bit-separated value and the lost decoding value of the seventh step. 화상처리장치의 부복호화 장치에 있어서, 상기 화상입력 데이타를 일정범위로 블럭화하여 저장하는 버퍼(502)와, 상기 버퍼(205)의 기록값을 평균 및 분산 처리하여 스무딩부와 에지부를 검출하는 평균분산계산부(504)와, 상기 버퍼(502)의 출력에서 상기 평균분산계산부(504)의 스무딩 검출 출력에 따라 스무딩 부분을 처리하는 스무딩 처리부(506)와, 상기 버퍼(502)의 출력에서 상기 평균 분산계산부(504)의 에지 검출 출력에 따라 에지 부분을 처리하는 에지 처리부(512)와, 상기 스무딩 처리부(506)의 출력 일정 비트를 에너지 포함 분포에 따라 상, 하위 비트로 분할하여 바이트 사이즈로 변환하는 제1데이타 비트 변환부(510)와, 상기 제1데이타 비트 변환부(510)의 에너지가 많이 포함된 값을 무손실 부호화하는 무손실 코더(514)와, 상기 제1데이타 비트 변환부(510)의 에너지가 적은 하위비트를 손실 부호화하는 손실코더(516)와, 상기 무손실 코더(514,518)와 손실코더(516,520)의 출력을 무손실/손실 복호화하는 무손실 디코더/손실 디코더(522,526)와, 상기 무손실 디코더(523,526)의 복호화 데이타를 일정 갯수의 펙셀로 분리하는 비트분리부(530,532)와, 상기 비트분리부(530,532)와, 상기 비트분리부(530,532)의 출력과 손실 디코더(524,528)의 출력을 합성하는 합성기(534,536)로 구성됨을 특징으로 하는 장치.In the decoding apparatus of the image processing apparatus, a buffer 502 for blocking and storing the image input data in a predetermined range, and an average for detecting the smoothing portion and the edge portion by averaging and distributing the recording values of the buffer 205. At the output of the buffer 502 and at the output of the buffer 502, a smoothing processor 506 for processing a smoothing portion in accordance with the smoothing detection output of the average dispersion calculator 504 at the output of the buffer 502. An edge processor 512 for processing an edge portion according to the edge detection output of the average dispersion calculator 504, and a byte size by dividing output constant bits of the smoothing processor 506 into upper and lower bits according to an energy-containing distribution. A first data bit converter 510 for converting to a lossless coder, a lossless coder 514 for lossless coding a value containing a large amount of energy from the first data bit converter, and the first data bit converter 510) A loss coder 516 for loss coding low energy bits, a lossless decoder / loss decoder 522, 526 for lossless / lossy decoding the outputs of the lossless coders 514 and 518 and the lossy coders 516 and 520, and the lossless decoder ( Combining the outputs of the bit separators 530, 532, the bit separators 530, 532, the bit separators 530, 532, and the outputs of the lossy decoders 524, 528 to separate the decoded data of 523, 526 into a predetermined number of pixels. Device comprising a synthesizer (534,536). 화상처리장치의 부복호화 방법에 있어서, 상기 화상입력 데이타를 일정범위로 블럭화하여 저장하는 제1단계와, 상기 제1단계의 기록값을 평균 및 분산 처리하여 스무딩부와 에지부를 검출하는 제2단계와, 상기 제1단계의 출력에서 상기 제2단계의 스무딩 검출 출력에 따라 스무딩 부분을 처리하는 제3단계와, 상기 제1단계의 출력에서 상기 제2단계의 에지 검출 출력에 따라 에지 부분을 처리하는 제4단계와, 상기 제3단계의 출력 일정 비트를 에너지 포함 분포에 따라 상, 하위 비트로 분할하여 바이트 사이즈로 변환하는 제5단계와, 상기 제5단계의 에너지가 많이 포함된 무손실 부호화하는 제6단계와, 상기 제5단계의 에너지가 적은 하위비트를 손실 부호화하는 제7단계와, 상기 무손실 코딩과 손실코딩의 출력을 무손실/손실 복호화하는 제8단계와, 상기 제8단계의 복호화 데이타를 일정 갯수의 펙셀로 분리하는 제9단계와, 상기 제9단계의 출력과 손실 디코딩 값을 합성하는 제10단계로 이루워짐을 특징으로 하는 방법.A decoding and decoding method of an image processing apparatus, comprising: a first step of blocking and storing the image input data in a predetermined range; and a second step of detecting a smoothing part and an edge part by averaging and distributing the recording values of the first step And a third step of processing a smoothing part according to the smoothing detection output of the second step at the output of the first step, and an edge part according to the edge detection output of the second step at the output of the first step. And a fifth step of dividing the output constant bit of the third step into upper and lower bits according to the energy distribution, and converting the bit into a byte size, and a lossless encoding method including a large amount of energy of the fifth step. A sixth step of loss coding the low energy bits of the fifth step, an eighth step of lossless / loss decoding the output of the lossless coding and the lossy coding, and The ninth step of separating the decoded data in step 8, and a predetermined number of peksel, characterized in the wojim made to step 10 for synthesizing the decoded output and the loss value in the ninth step. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940016850A 1994-07-13 1994-07-13 Coding method of video signal by bit division KR0139495B1 (en)

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