Adaptive filtering based upon boundary strength
First Claim
Patent Images
1. A method for at least one of encoding and decoding a digital image, comprising:
- (a) identifying a first region adjacent a second region in said image, wherein said first region and said second region are substantially the same size;
(b) identifying a first set of one or more motion vectors calculated using information only from said first region and a second set of one or more motion vectors calculated using information only from said second region; and
(c) irrespective of whether or not said first region has non-zero transform coefficients, selectively not filtering the boundary area between said first region and said second region based on a relationship between said first set of one or more motion vectors and only said second set of one or more motion vectors.
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Abstract
Adjacent regions are identified in an image. Coding parameters for the adjacent regions are identified. Selective filtering is performed at the region between the identified adjacent regions.
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Citations
63 Claims
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1. A method for at least one of encoding and decoding a digital image, comprising:
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(a) identifying a first region adjacent a second region in said image, wherein said first region and said second region are substantially the same size; (b) identifying a first set of one or more motion vectors calculated using information only from said first region and a second set of one or more motion vectors calculated using information only from said second region; and (c) irrespective of whether or not said first region has non-zero transform coefficients, selectively not filtering the boundary area between said first region and said second region based on a relationship between said first set of one or more motion vectors and only said second set of one or more motion vectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An encoder for encoding an image comprising:
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(a) a processor adapted to identify a first region adjacent at least one other region in said image, wherein said first region and said at least one other region are substantially the same size; (b) said processor comparing at least one motion vector calculated using information from only said first region only with at least one motion vector calculated using information from only a respective one of said at least one other region; and (c) irrespective of whether or not said first region has non-zero transform coefficients, said processor selectively not filtering the region proximate the boundary between said first region and said respective one of said at least one other region based on said comparing. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A decoder for decoding an image comprising:
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(a) a processor adapted to identify a first region adjacent at least one other region in said image, wherein said first region and said at least one other region are substantially the same size; (b) said processor comparing at least one motion vector calculated using information from only said first region only with at least one motion vector calculated using information from only a respective one of said at least one other region; and (c) irrespective of whether or not said first region has non-zero transform coefficients, said processor selectively not filtering the region proximate the boundary between said first region and said respective one of said at least one other region based on said comparing. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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Specification