KR900007212A - Color still image transmission method and apparatus - Google Patents

Color still image transmission method and apparatus Download PDF

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Publication number
KR900007212A
KR900007212A KR1019890014171A KR890014171A KR900007212A KR 900007212 A KR900007212 A KR 900007212A KR 1019890014171 A KR1019890014171 A KR 1019890014171A KR 890014171 A KR890014171 A KR 890014171A KR 900007212 A KR900007212 A KR 900007212A
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South Korea
Prior art keywords
signal data
color
still image
color difference
luminance signal
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KR1019890014171A
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Korean (ko)
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KR930001268B1 (en
Inventor
이사하루 나까시마
히로유끼 하야사끼
마사끼 스즈끼
요시노리 사이토오
히사시 마쓰야마
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이우에 사또시
산요덴끼 가부시끼가이샤
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Priority claimed from JP63252384A external-priority patent/JP2552538B2/en
Application filed by 이우에 사또시, 산요덴끼 가부시끼가이샤 filed Critical 이우에 사또시
Publication of KR900007212A publication Critical patent/KR900007212A/en
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Publication of KR930001268B1 publication Critical patent/KR930001268B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)

Abstract

내용 없음No content

Description

컬러 정지화상 전송방법 및 장치Color still image transmission method and apparatus

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

제1도는 본 발명의 일실시예를 나타내는 플로우도.1 is a flow diagram illustrating an embodiment of the present invention.

제2도는 제1도 실시예에 있어서의 송신동작을 나타내는 플로우도.FIG. 2 is a flow chart showing a transmission operation in the first embodiment. FIG.

제3도는 제1도 실시예에 있어서의 수신동작을 나타내는 플로우도.3 is a flowchart showing a receiving operation in the first embodiment.

Claims (7)

다음의 스텝을 포함하는 컬러 정지화상 전송방법; (가) 컬러TV 카메라(12)로 촬영된 화상을 휘도신호 데이터 및 색차 신호데이터로 변환하며, (나) 1화상을 구성하는 전체인 화소의 휘도신호 데이터를 송신하며, (다) 전기의 스텝(나)인후 전기의 색차신호 데이터를 1/N(N는 2이상인 정수)에 압축시켜 송신하며 그리고, (라) 수신측에 있어서, 먼저 수신한 전체인 화소의 휘도신호 데이터에 의하여서 모노크로움 정지화상을 표시한후 전기의 색차신호 데이터에 의거하여서 전기의 모노크로움 정지화상을 컬러 정지화상으로서 표시한다.A color still image transmission method comprising the following steps; (A) Convert the image captured by the color TV camera 12 into luminance signal data and chrominance signal data, (B) transmit luminance signal data of all pixels constituting one image, and (C) the previous step. (B) After the transmission, the color difference signal data is compressed to 1 / N (N is an integer greater than or equal to 2) and transmitted. (D) On the receiving side, the monochrome signal is obtained by the luminance signal data of the entire pixel first received. After displaying the lower still image, the monochromatic still image is displayed as a color still image based on the color difference signal data. 제1항에 있어서, 전기의 스텝(다)은 서로 상관관계를 가진 N개인 화소의 색차신호 데이터의 평균치를 계상하는 스텝을 포함한 컬러 정지화상 전송방법.The color still image transmission method according to claim 1, wherein the previous step (c) includes a step of calculating an average value of color difference signal data of N pixels having a correlation with each other. 제1항에 있어서, 전기의 스텝(다)는 서로 상관관계를 가진 N개인 화소의 색차신호 데이터중 하나를 선택하는 스텝을 포함 컬러 정지화상 전송방법.The method of claim 1, wherein the step (c) includes selecting one of color difference signal data of N pixels that are correlated with each other. 다음의 스텝을 포함하는 컬러 정지화상 전송방법; (가) 컬러TV 카메라(12)로 촬영된 컬러 화상을 휘도신호 데이터 및 색차신호 데이터로 변환하며, (나) 1화상마다 휘도신호 데이터 및 색차신호 데이터를 메모리에 기억하며, (다) 메모리에 기억된 서로 상관관계를 가진 N개의 화소(N는 2이상인 정수)에 대하여서 색차신호 데이터의 평균치를 계산하며 그리고, (나)휘도신호 데이터에 계속하여서 계산된 색차신호 데이터의 평균치를 송신한다.A color still image transmission method comprising the following steps; (A) The color image photographed by the color TV camera 12 is converted into luminance signal data and chrominance signal data, (B) The luminance signal data and chrominance signal data are stored in the memory for each image, and (C) in the memory. The average value of the color difference signal data is calculated for the N pixels (N is an integer of 2 or more) stored in correlation with each other, and (b) The average value of the calculated color difference signal data is transmitted following the luminance signal data. 제4항에 있어서, 스텝(e)수신측에 있어서 송신된 각 화소의 휘도신호 데이터를 비디오 메모리(16)에 기억하는 동시에 비디오 메모리(16)가 인접하는 N화소에 동일한 평균 색차신호 데이터를 기억하는 것을 특징으로 하는 컬러 정지화상 전송방법.The video memory 16 stores the luminance signal data of each pixel transmitted at the receiving side in the step (e) and simultaneously stores the same average color difference signal data in the N pixels adjacent to the video memory 16. Color still image transmission method characterized in that. 다음의 것을 포함하는 컬러 정지화상 전송장치; 컬러TV 카메라(12)로 촬영된 컬러화상을 휘도신호 데이터 및 색차신호 데이터로 변환하기 위한 수단; 1화면을 구성하는 전체인 화소의 휘도신호 데이터를 송신하기 위한 수단; 전체의 화소의 전기인 휘도신호 데이터에 계속하며, 전기의 색차신호 데이터를 1/N(N는 2이상인 정수)로 압축시켜 송신하기 위한 수단: 및 수신측에 설치되며 먼저 수신한 전체인 화소의 휘도신호 데이터에 의하여서 모노크로움 정지화상을 표시한후 전기의 색차신호 데이터에 의거하여서 전기의 모노크로움 정지화상을 컬러 정지화상으로서 표시하기 위한 수단.A color still image transmission device including the following; Means for converting the color image photographed by the color TV camera 12 into luminance signal data and color difference signal data; Means for transmitting the luminance signal data of the entire pixel constituting one screen; Means for compressing and transmitting the electric color difference signal data to 1 / N (N is an integer of 2 or more), which is continued to the luminance signal data which is the electric of the whole pixels: Means for displaying a monochromium still image as a color still image after displaying the monochromium still image with luminance signal data and then based on the electric color difference signal data. 다음의 것을 포함한 컬러 정지화상 전송장치; 컬러TV 카메라(12)로 촬영된 컬러 화상을 휘도신호 데이터 및 색차신호 데이터로 변환하기 위한 수단; 1화소마다 휘도신호 데이터 및 색차신호 데이터를 메모리에 기억하기 위한 수단: 전기의 메모리에 기억된 서로 상관관계를 가진 N개의 화소(N는 2이상인 정수)에 대하여서 색차신호 데이터의 평균치를 계산하기 위한 수단: 전기의 휘도신호 데이터에 계속하여서 전기의 계산된 색차신호 데이터의 평균치를 계산하기 위한 수단: 및 수신측에 설치되며 송신된 각 화소의 휘도신호 데이터를 비디오 메모리(16)에 기억하는 동시에 비디오 메모리(16)가 인접하는 N화소에 동일한 평균 색차 신호 데이터를 기억하기 위한 수단.A color still image transmission device including the following; Means for converting the color image photographed by the color TV camera 12 into luminance signal data and color difference signal data; Means for storing the luminance signal data and the color difference signal data for each pixel in a memory: for calculating the average value of the color difference signal data for N pixels (N is an integer of 2 or more) correlated with each other stored in the electric memory. Means: Means for calculating an average value of the calculated electric color difference signal data subsequent to the electric luminance signal data: and video at the same time storing the luminance signal data of each pixel transmitted on the receiving side in the video memory 16. Means for storing the same average chrominance signal data in adjacent N pixels by the memory 16. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890014171A 1988-10-06 1989-09-29 Color picture transmission method and device KR930001268B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP88-252384 1988-10-06
JP???63-252384 1988-10-06
JP63252384A JP2552538B2 (en) 1988-04-12 1988-10-06 Color image transmission method

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KR900007212A true KR900007212A (en) 1990-05-09
KR930001268B1 KR930001268B1 (en) 1993-02-22

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DE (1) DE3933488A1 (en)
FR (1) FR2637753B1 (en)

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DE19733761C2 (en) * 1997-08-05 2001-07-26 Gerd Reime Device for transmitting color video still images over a low bandwidth signal channel

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US4319267A (en) * 1979-02-16 1982-03-09 Nippon Telegraph And Telephone Public Corporation Picture coding and/or decoding equipment
DE3042919C2 (en) * 1980-11-14 1983-08-25 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method and device for the transmission of color images in facsimile technology
DE3042966C2 (en) * 1980-11-14 1982-08-12 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Process for reproducing halftone images in facsimile technology

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DE3933488C2 (en) 1993-01-14
DE3933488A1 (en) 1990-04-12
FR2637753B1 (en) 1992-10-09
FR2637753A1 (en) 1990-04-13
CA1335904C (en) 1995-06-13
KR930001268B1 (en) 1993-02-22

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