Image signal processing apparatus and method

Television – Format conversion

Reexamination Certificate

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C348S459000, C348S699000

Reexamination Certificate

active

06947094

ABSTRACT:
An image signal processing apparatus according to the present invention receives an image signal inputted thereto that is generated by subjecting a telecine-converted image to double speed conversion, in which signal one film frame is formed by four fields, identifies a first field on the basis of a difference value calculated between pixel signal levels, and shifts the position of a detected pixel in a vector direction of a motion vector such that an amount of shift is progressively increased as transition is made from the identified first field to the subsequent fields.

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Haan De G et al: “IC for Motion-Compensated 100 HZ TV with Natural-Motion Movie-Mode” IEEE Transactions on Consumer Electronics, IEEE Inc. New York, US, vol. 42, No. 2, May 1, 1996, pp. 165-174, XP000596762 ISSN: 0098-3063.
Masahiko Achiha et al: “Motion-Adaptive Enhanced Decoder and Up-Converter for Pal Signals” Broadcast Sessions. Montreux, Jun. 13-18, 1991, Proceedings of the International Television Symposium and Technical Exhibition, Geneva, CCITT, CH, Jun. 13, 1991, pp. 197-208, XP000268889.

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