Deblocking filter for encoder/decoder arrangement and method with divergence reduction
First Claim
Patent Images
1. A method for coding a representation of an image at a first terminal that is adapted to communicate with a second terminal, the method comprising:
- operating at least one of the first and second terminals using an inverse transformer loop; and
preventing unacceptable error accumulation within the inverse transformer loop by using the inverse transformer in the loop according to a bit-exact specification between the first and second terminals.
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Abstract
According to one aspect of the disclosure, the present invention provides methods and arrangements for the removal or reduction of divergence artifacts between a transmitting codec and a receiving codec. One of a number of implementations includes using a deblocking filter in an inverse transformer loop and selectively disabling the filter upon certain conditions.
19 Citations
8 Claims
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1. A method for coding a representation of an image at a first terminal that is adapted to communicate with a second terminal, the method comprising:
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operating at least one of the first and second terminals using an inverse transformer loop; and
preventing unacceptable error accumulation within the inverse transformer loop by using the inverse transformer in the loop according to a bit-exact specification between the first and second terminals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. For communicating a representation of an image between a first terminal and a second terminal using a communications channel, an arrangement in at least one of the terminals, comprising:
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means for operating said at least one of the terminals using an inverse transformer loop; and
means for preventing unacceptable error accumulation within the inverse transformer loop by using the inverse transformer in the loop according to a bit-exact specification between the first and second terminals.
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8. For communicating a representation of an image between a first terminal and a second terminal using a communications channel, an arrangement in at least one of the terminals, comprising:
a programmed video-data processing circuit configured and arranged to operate said at least one of the terminals using an inverse transformer loop, and to prevent unacceptable error accumulation within the inverse transformer loop by using the inverse transformer in the loop according to a bit-exact specification between the first and second terminals.
Specification