Video signal processing apparatus and method

A video signal processing apparatus and method for converting a frame-unit video signal into a field-unit video signal includes a memory (116) for storing the frame-unit video signal, a control circuit (31) for controlling reading of the stored frame-unit video data from the memory so as to obtain t...

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Bibliographic Details
Main Author TAUCHI, YOICHIRO
Format Patent
LanguageEnglish
French
German
Published 02.01.2002
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A video signal processing apparatus and method for converting a frame-unit video signal into a field-unit video signal includes a memory (116) for storing the frame-unit video signal, a control circuit (31) for controlling reading of the stored frame-unit video data from the memory so as to obtain the field-unit video signal having fields which are arranged in a desired order and a vertical filter (32) which receives the field-unit video signal read from the memory. The vertical filter shifts a centroid of a picture represented by the received video signal in accordance with at least one coefficient which is selectively set based upon the field order. The reading of the video signal may be controlled so as to operate as a delay device thereby eliminating the need for such delay in the vertical filter. When applied to a digital VTR or the like, the present apparatus prevents line flicker and suppresses plane flicker.
Bibliography:Application Number: EP19950307058