KR970009401A - Shrink Device of Video Terminal - Google Patents

Shrink Device of Video Terminal Download PDF

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Publication number
KR970009401A
KR970009401A KR1019950023360A KR19950023360A KR970009401A KR 970009401 A KR970009401 A KR 970009401A KR 1019950023360 A KR1019950023360 A KR 1019950023360A KR 19950023360 A KR19950023360 A KR 19950023360A KR 970009401 A KR970009401 A KR 970009401A
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KR
South Korea
Prior art keywords
video
video signal
terminal
encoded
exchange
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Application number
KR1019950023360A
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Korean (ko)
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KR100207380B1 (en
Inventor
윤성욱
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배순훈
대우전자 주식회사
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Priority to KR1019950023360A priority Critical patent/KR100207380B1/en
Publication of KR970009401A publication Critical patent/KR970009401A/en
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Publication of KR100207380B1 publication Critical patent/KR100207380B1/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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

본 발명은 동영상 단말기에 간축기능을 추가시켜 전송대역을 보다 효율적으로 이용하는 간축장치에 관한 것으로, 이를 해결하기 위하여 비디오 카메라(CCD)로부터 제공받은 영상 신호를 간축하고, 이 간축된 영상 신호를 부호화하여 움직임 변위 및 상기 부호화된 영상 데이타를 발생하는 영상신호 부호화수단과, 영상신호 부호화 수단에 의거하여 부호화된 영상 데이타 및 움직임 변위 데이타를 교환기로 송출하거나 이 교환기로부터 제공되는 부호화된 영상 데이타 및 움직임 변위 데이타를 제공받은 단말카드와, 단말카드를 통해 교환기로부터 전달받은 부호화된 영상 데이타 및 움직임 변위를 복호화하는 영상신호 복호화수단을 구비함으로써 한정된 전송대역을 보다 효율적으로 이용할 수 있는 효과가 있다.The present invention relates to a shortening device that uses a transmission band more efficiently by adding a shortening function to a video terminal. In order to solve this problem, a video signal provided from a video camera (CCD) is shortened, and the shortened video signal is encoded. Image signal encoding means for generating a motion displacement and the encoded image data, and image data and motion displacement data encoded based on the image signal encoding means are sent to or provided from the exchange. By providing a terminal card and a video signal decoding means for decoding the encoded video data and the movement displacement received from the exchange through the terminal card it is possible to use the limited transmission band more efficiently.

Description

동영상 단말기의 간축장치Shrink Device of Video Terminal

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

제3도는 본 발명에 따른 동영상 단말기의 간축장치를 도시한 블럭 구성도, 제4도는 제3도의 부호화부를 도시한 블럭 구성도, 제5도는 제3도의 움직임 추정부를 도시한 블럭 구성도.3 is a block diagram showing a condenser of a video terminal according to the present invention, FIG. 4 is a block diagram showing an encoder of FIG. 3, and FIG. 5 is a block diagram showing a motion estimation unit of FIG.

Claims (4)

복수개의 단말장치와, 이 단말장치와 상호 연결되는 교환기를 구비하고서 단자간 회의가 가능한 동영상 단말기의 간축장치에 있어서; 비디오 카메라(CCD)로부터 제공받은 영상 신호를 간축하고, 이 간축된 영상 신호를 부호화하여 움직임 변위 및 상기 부호화된 영상 데이타를 출력하는 영상신호 부호화수단(100)과; 상기 영상신호 부호화수단(100)에 의거하여 부호화된 영상 데이타 및 움직임 변위 데이타를 교환기로 송출하거나 이 교환기로부터 제공되는 부호화된 영상 데이타 및 움직임 변위데이타를 제공받는 단말카드(200)와, 상기 단말카드(200)를 통해 교환기로부터 전달받은 부호화된 영상 데이타 및 움직임 변위를 복호화하는 영상신호 복호화수단으로 이루어짐을 특징으로 하는 동영상 단말기의 간축장치.A shortening device for a video terminal having a plurality of terminal apparatuses and an exchanger interconnected with the terminal apparatuses, the terminal capable of meeting between terminals; A video signal encoding means (100) for shortening the video signal provided from the video camera (CCD), encoding the shortened video signal and outputting a motion displacement and the encoded video data; A terminal card 200 which transmits the encoded video data and the motion displacement data based on the video signal encoding means 100 to an exchange or receives the encoded video data and the motion displacement data provided from the exchange, and the terminal card And a video signal decoding means for decoding the encoded video data and the motion displacement received from the exchange through the video signal exchange unit 200. 제1항에 있어서, 상기 영상신호 부호화수단(100)과, 프레임간 차분신호를 구하는 감산기(120)와, 상기 감산기(120)의 차분신호를 간축하는 간축부(140)와, 상기 간축부(140)에 의해 간축된 영상을 부호화하는 부호화부(160)와, 상기 부호화부(160)에 의해서 부호화된 간축된 영상과 현재 입력되는 영상과의 움직임을 예측하는 움직임 예측부(180)로 이루어짐을 특징으로 하는 동영상 단말기의 간축장치.The video signal encoding means 100, a subtractor 120 for obtaining a difference signal between frames, a condenser 140 for condensing the difference signal of the subtractor 120, and the condenser portion. The encoder 160 encodes the image shrunk by the 140 and the motion predictor 180 predicts the motion of the shrunk image encoded by the encoder 160 and the currently input image. Shortening device of a video terminal, characterized in that. 제2항에 있어서, 상기 간축부(140)는 상기 감산기(120)로부터 제공되는 프레임간의 차분신호 및 영상신호가 필터를 근거로 하여 간축됨을 특징으로 하는 동영상 단말기의 간축장치.The apparatus of claim 2, wherein the condenser unit 140 reduces the difference signal and the image signal between frames provided from the subtractor 120 based on a filter. 제3항에 있어서, 상기 간축부(140)의 영상신호 간축 비율은 2:1로 함을 특징으로 하는 동영상 단말기의 간축장치.The apparatus of claim 3, wherein the video signal reduction ratio of the reduction unit (140) is 2: 1. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950023360A 1995-07-31 1995-07-31 Apparatus for reducing the data in motion picture KR100207380B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950023360A KR100207380B1 (en) 1995-07-31 1995-07-31 Apparatus for reducing the data in motion picture

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Application Number Priority Date Filing Date Title
KR1019950023360A KR100207380B1 (en) 1995-07-31 1995-07-31 Apparatus for reducing the data in motion picture

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KR970009401A true KR970009401A (en) 1997-02-24
KR100207380B1 KR100207380B1 (en) 1999-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020076110A (en) * 2001-03-26 2002-10-09 한빛아이티 주식회사 Image telecommunication system for Personal digital assistant and a control method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101550583B1 (en) * 2014-08-28 2015-09-07 제주대학교 산학협력단 Effective sound generator using pulsed thermal radiation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020076110A (en) * 2001-03-26 2002-10-09 한빛아이티 주식회사 Image telecommunication system for Personal digital assistant and a control method thereof

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