Deblocking filter device, decoding device, and program product
By introducing a filter control unit into the deblocking filter and adjusting the boundary filtering intensity based on ACT and non-zero transform coefficients, the image quality degradation problem caused by ACT in HEVC and VVC coding is solved, and image quality is preserved under ACT conditions.
CN114450964BActive Publication Date: 2026-07-03NIPPON HOSO KYOKAI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NIPPON HOSO KYOKAI
- Filing Date
- 2021-06-08
- Publication Date
- 2026-07-03
Smart Images
Figure CN114450964B_ABST
Abstract
The present application relates to a deblocking filter, a decoding device and a program product. A deblocking filter device of a first mode includes: a deblocking filter that performs a filtering process on a boundary of a first reconstructed block and a second reconstructed block adjacent to the first reconstructed block; and a filter control unit that controls a boundary filtering strength of the deblocking filter based on whether at least one of the first reconstructed block and the second reconstructed block is encoded using JCCR (Joint coding of chroma residual) that generates one joint prediction residual from prediction residuals of Cb color difference components and Cr color difference components respectively.
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