Adaptive filtering based upon boundary strength
First Claim
Patent Images
1. A method for at least one of encoding and decoding an image, comprising:
- identifying adjacent regions in said image;
examining conditions of coding parameters for said adjacent regions; and
selectively filtering at least a portion of said regions proximate a boundary between said adjacent regions based upon said conditions of coding parameters, wherein said conditions of coding parameters include whether at least one of said adjacent regions contains non-zero transform coefficients.
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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.
43 Citations
9 Claims
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1. A method for at least one of encoding and decoding an image, comprising:
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identifying adjacent regions in said image;
examining conditions of coding parameters for said adjacent regions; and
selectively filtering at least a portion of said regions proximate a boundary between said adjacent regions based upon said conditions of coding parameters, wherein said conditions of coding parameters include whether at least one of said adjacent regions contains non-zero transform coefficients. - View Dependent Claims (2, 3)
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4. An encoder for encoding an image, comprising:
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an identifier portion configured to identify adjacent regions in said image;
a condition examiner portion configured to examine conditions of coding parameters for said adjacent regions; and
a selective filter selectively filtering at least a portion of said regions proximate a boundary between said adjacent regions based upon said conditions of coding parameters, wherein said conditions of coding parameters include whether at least one of said adjacent regions contains non-zero transform coefficients. - View Dependent Claims (5, 6)
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7. A decoder for decoding an image, comprising:
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an identifier portion configured to identify adjacent regions in said image;
a condition examiner portion configured to examine conditions of coding parameters for said adjacent regions; and
a selective filter selectively filtering at least a portion of said regions proximate a boundary between said adjacent regions based upon said conditions of coding parameters, wherein said conditions of coding parameters include whether at least one of said adjacent regions contains non-zero transform coefficients. - View Dependent Claims (8, 9)
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Specification