Method and apparatus for encoding/decoding image information
First Claim
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1. A method of decoding video, the method comprising:
- deriving, by a decoding apparatus, residual samples from a received bitstream;
generating, by the decoding apparatus, prediction samples by intra prediction or inter prediction;
generating, by the decoding apparatus, reconstructed samples based on the prediction samples and the residual samples;
setting, by the decoding apparatus, a boundary strength (bS) value on a target boundary, wherein the bS value is set from three case values; and
applying, by the decoding apparatus, deblocking filtering on the reconstructed samples neighboring the target boundary based on the bS value,wherein the bS value is set for the target boundary which is an overlapped boundary of a boundary of a bS setting unit and a boundary of a deblocking filtering unit,wherein the deblocking filtering unit is an array of 8×
8 samples and the bS setting unit is an array of 4×
4 samples.
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Abstract
The present invention relates to a deblocking filtering method, a method for inducing bs (boundary strength) therefor, and a method and an apparatus for encoding/decoding using the same. The method for inducing the bS of the present invention comprises the steps of: inducing a boundary of a deblocking filtering unit block as a unit block for applying the deblocking filtering; and setting the bS according to each bS setting unit block within the deblocking filtering unit block, wherein the bS setting step can set a bS value for a target boundary corresponding to a boundary of the deblocking filtering unit block as the bs setting unit block.
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Citations
22 Claims
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1. A method of decoding video, the method comprising:
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deriving, by a decoding apparatus, residual samples from a received bitstream; generating, by the decoding apparatus, prediction samples by intra prediction or inter prediction; generating, by the decoding apparatus, reconstructed samples based on the prediction samples and the residual samples; setting, by the decoding apparatus, a boundary strength (bS) value on a target boundary, wherein the bS value is set from three case values; and applying, by the decoding apparatus, deblocking filtering on the reconstructed samples neighboring the target boundary based on the bS value, wherein the bS value is set for the target boundary which is an overlapped boundary of a boundary of a bS setting unit and a boundary of a deblocking filtering unit, wherein the deblocking filtering unit is an array of 8×
8 samples and the bS setting unit is an array of 4×
4 samples. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A decoding apparatus for video decoding, comprising:
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an inverse transformer configured to derive residual samples which is derived from a received bitstream; a predictor configured to generate prediction samples by intra prediction or inter prediction; an adder configured to generate reconstructed samples based on the prediction samples and the residual samples; and a filter configured to set a boundary strength (bS) value on a target boundary, wherein the bS value is set from three case values, and to apply deblocking filtering on the reconstructed samples, wherein the bS value is set for the target boundary which is an overlapped boundary of a boundary of a bS setting unit and a boundary of a deblocking filtering unit, wherein the deblocking filtering unit is an array of 8×
8 samples and the bS setting unit is an array of 4×
4 samples. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification