JPS6489685A - Dynamic picture transmission device - Google Patents

Dynamic picture transmission device

Info

Publication number
JPS6489685A
JPS6489685A JP62243707A JP24370787A JPS6489685A JP S6489685 A JPS6489685 A JP S6489685A JP 62243707 A JP62243707 A JP 62243707A JP 24370787 A JP24370787 A JP 24370787A JP S6489685 A JPS6489685 A JP S6489685A
Authority
JP
Japan
Prior art keywords
difference
value
dynamic picture
picture
differential buffer
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62243707A
Other languages
Japanese (ja)
Inventor
Kimihiko Mitsubori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62243707A priority Critical patent/JPS6489685A/en
Publication of JPS6489685A publication Critical patent/JPS6489685A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04N19/87—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving scene cut or scene change detection in combination with video compression
    • 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
    • H04N19/142—Detection of scene cut or scene change
    • 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
    • H04N19/179—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 a scene or a shot

Abstract

PURPOSE:To complete the transmission of a dynamic picture within one picture displaying period by interleaving a line to fetch and scan the differential information of the picture by a value corresponding to a transmission rate. CONSTITUTION:A video signal, after being digitized by an A/D converter 1, is stored alternately in frame memories 3, 4 through a frame memory switcher 2. In an interframe differential buffer 5, the different kinds of information of two pictures are stored. In a difference decision circuit 7, when the difference between the frames is larger than a definite value, it is decided that a scene is being switched between the frame memories 3, 4, and the contents of the frame memory corresponding to the new scene is sent to an encoder 9. When the difference between the frames is smaller than the definite value, it is decided to be the difference in a usual dynamic picture level, and the interframe differential buffer 5 is scanned by a differential buffer scanner 6 by an interleave value based on the value of a transfer rate setting mechanism 11.
JP62243707A 1987-09-30 1987-09-30 Dynamic picture transmission device Pending JPS6489685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243707A JPS6489685A (en) 1987-09-30 1987-09-30 Dynamic picture transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243707A JPS6489685A (en) 1987-09-30 1987-09-30 Dynamic picture transmission device

Publications (1)

Publication Number Publication Date
JPS6489685A true JPS6489685A (en) 1989-04-04

Family

ID=17107788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243707A Pending JPS6489685A (en) 1987-09-30 1987-09-30 Dynamic picture transmission device

Country Status (1)

Country Link
JP (1) JPS6489685A (en)

Similar Documents

Publication Publication Date Title
AU589165B2 (en) Compression of pixels in a reduced-size video image
EP1215911A3 (en) Video encoding and decoding apparatus
TW371340B (en) Image processing system
KR910009109A (en) Video imaging device
EP0400998A3 (en) Apparatus for detecting a moving object in a motion picture sequence
JPS57111176A (en) Television picture receiver
EP0840276A3 (en) Window processing in an on screen display system
KR900002654A (en) Video signal processing circuit
KR930009381A (en) Information transmitting device and information receiving device
KR930001687A (en) Video camera
DE3366183D1 (en) Apparatus for the flickerless display of television pictures, text pages and graphic pages
JPS6489685A (en) Dynamic picture transmission device
JPS5395518A (en) Facsimile input system
KR920019196A (en) Image signal converter
EP0319684A3 (en) Display system for color image quantization
EP0394023A3 (en) Image display apparatus
JPS5652982A (en) Transmission system and receiving system of television signal
GB1379528A (en) Method of transmitting television images
KR950700667A (en) PROCESS AND CIRCUIT FOR DECODING LETTER-BOX SIGNALS
JPS5467316A (en) Television pickup unit
JPS568958A (en) Facsimile equipment
KR910003640Y1 (en) Line transmission control circuit for fax
MY107473A (en) Video camera with electronic viewfinder
IT1274608B (en) METHOD OF PROCESSING BITONAL VIDEO IMAGES AND RELATED DEVICE
KR970078592A (en) Video signal transmission device