JPS55133186A - Conversion unit for television picture - Google Patents

Conversion unit for television picture

Info

Publication number
JPS55133186A
JPS55133186A JP4050879A JP4050879A JPS55133186A JP S55133186 A JPS55133186 A JP S55133186A JP 4050879 A JP4050879 A JP 4050879A JP 4050879 A JP4050879 A JP 4050879A JP S55133186 A JPS55133186 A JP S55133186A
Authority
JP
Japan
Prior art keywords
signal
coordinate
circuit
video
rotation
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.)
Granted
Application number
JP4050879A
Other languages
Japanese (ja)
Other versions
JPS6314552B2 (en
Inventor
Seishi Kageyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4050879A priority Critical patent/JPS55133186A/en
Publication of JPS55133186A publication Critical patent/JPS55133186A/en
Publication of JPS6314552B2 publication Critical patent/JPS6314552B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

PURPOSE:To prevent the deterioration f video quality accompanied with picture conversion, by performing the picture conversion such as movement and rotation of television picture with circuit technique. CONSTITUTION:The television picture signal P is smapled and inputted to the switch circuit 11 sequentially in time serial. In this case, to the switch circuit 11, the video element signals Pm,n, Pm-1,n, Pm-1,n-1, are given at the same time at the input timing of the video signal Pm,n. The switching circuit 11 selectively picks up one of the video element signals based on the output signal of the address selection circuit 15. On the other hand, the signal of coordinate (x,y) corresponding to each video element signal is respectively fed to the coordinate conversion circuit for operational processing according to the rotation angle information alpha predetermined to obtain the rotation coordinate (m,n). The interpolation processing of the video signal of rotation coordinate to the display coordinate (X,Y) is made, it is written in the high speed RAM, and further, it is sequentially transferred to the main memory 26 for write-in.
JP4050879A 1979-04-04 1979-04-04 Conversion unit for television picture Granted JPS55133186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4050879A JPS55133186A (en) 1979-04-04 1979-04-04 Conversion unit for television picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4050879A JPS55133186A (en) 1979-04-04 1979-04-04 Conversion unit for television picture

Publications (2)

Publication Number Publication Date
JPS55133186A true JPS55133186A (en) 1980-10-16
JPS6314552B2 JPS6314552B2 (en) 1988-03-31

Family

ID=12582481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4050879A Granted JPS55133186A (en) 1979-04-04 1979-04-04 Conversion unit for television picture

Country Status (1)

Country Link
JP (1) JPS55133186A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022878A (en) * 1983-07-18 1985-02-05 Sony Corp Interpolation method of digital picture signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022878A (en) * 1983-07-18 1985-02-05 Sony Corp Interpolation method of digital picture signal

Also Published As

Publication number Publication date
JPS6314552B2 (en) 1988-03-31

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