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Method and apparatus for encoding/decoding image information

  • US 10,326,988 B2
  • Filed: 11/05/2012
  • Issued: 06/18/2019
  • Est. Priority Date: 11/04/2011
  • Status: Active Grant
First Claim
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1. A deblocking filtering method, by a decoding apparatus, the method comprising:

  • deriving a boundary of a deblocking filtering unit block which is a unit block for which deblocking filtering is performed in a reconstructed current picture;

    setting a boundary strength (bS) of a boundary of a bS setting unit block in the reconstructed current picture; and

    applying deblocking filtering on the boundary of the deblocking filtering unit block based on the bS,wherein the step of setting the bS includes setting a bS value for a target boundary which is an overlapped boundary of the bS setting unit block and the deblocking filtering unit block,wherein the step of applying the deblocking filtering includes determining whether the deblocking filtering is applied to a luma sample on the basis of the bS value and whether the deblocking filtering is applied to a chroma sample on the basis of the bS value,wherein the bS value is set as a value among 0, 1 and 2,wherein it is determined that the deblocking filtering is applied to the luma sample when the bS value is greater than a first threshold value which is 0, and it is determined that the deblocking filtering is applied to the chroma sample when the bS value is greater than a second threshold value which is 1,wherein when the bS value is equal to 1, the deblocking filtering is applied to the luma sample and the deblocking filtering is not applied to the chroma sample.

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