Predictive interpolation of a video signal
First Claim
1. A method of enhancing picture quality of a video signal, said method comprising the steps of:
- generating an interpolated base frame image;
receiving a first previously processed picture;
receiving a second previously processed picture;
generating a combined motion compensated surface; and
generating a temporally interpolated enhanced picture based upon said interpolated base frame image and said combined motion compensated surface.
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Accused Products
Abstract
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference picture; receiving a second previously decoded difference picture; generating a combined motion compensated difference surface; and generating a temporally interpolated enhanced picture based upon the interpolated base frame image and the combined motion compensated difference surface. A circuit for enhancing picture quality of a video signal is also disclosed. The circuit comprising a base decoder generating a base image of a standard definition picture; a temporal predictive interpolator coupled to the base decoder and generating an interpolated block; and a summing circuit coupled to the temporal predictive interpolator. The summing circuit preferably adds the interpolated block and a difference block.
150 Citations
27 Claims
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1. A method of enhancing picture quality of a video signal, said method comprising the steps of:
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generating an interpolated base frame image;
receiving a first previously processed picture;
receiving a second previously processed picture;
generating a combined motion compensated surface; and
generating a temporally interpolated enhanced picture based upon said interpolated base frame image and said combined motion compensated surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A circuit for enhancing picture quality of a video signal, said circuit comprising:
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a base decoder generating a base image of a standard definition picture;
a temporal predictive interpolator coupled to said base decoder and generating an interpolated block; and
a summing circuit coupled to said temporal predictive interpolator, said summing circuit adding said interpolated block and a difference block. - View Dependent Claims (18, 19, 20, 21)
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22. A circuit for enhancing picture quality of a video signal, said circuit comprising:
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a base decoder generating a base image of a standard definition picture;
a temporal predictive interpolator coupled to said base decoder and generating an interpolated block;
a combined motion compensated difference surface based upon a first previously processed picture and a second previously processed picture;
a first summing circuit coupled to receive an interpolated base frame and said combined motion compensated surface and to generate a temporally interpolated enhanced picture; and
a second summing circuit adding said temporally interpolated enhanced picture and a difference block. - View Dependent Claims (23, 24, 25, 26)
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27. A circuit for enhancing picture quality of a video signal, said circuit comprising:
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base decoder means generating a base image of a standard definition picture;
temporal predictive interpolator means coupled to said base decoder means and generating an interpolated block; and
summing circuit means coupled to said temporal predictive interpolator, said summing circuit adding said interpolated block and a difference block.
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Specification