An efficient geometric partitioning mode by adaptive blending method for screen content coding

Geometric partitioning mode (GPM) was newly adopted in Versatile Video Coding (VVC) to increase the partitioning precision of the arbitrary boundaries of actual objects. Note that the blending process of the GPM is not suitable for screen content with various sharp and strong edges. To alleviate thi...

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Bibliographic Details
Published in:Electronics letters 2023-10, Vol.59 (19), p.n/a
Main Authors: Lee, Minhun, Oh, Seoung‐Jun, Sim, Donggyu
Format: Article
Language:English
Subjects:
Algorithms
Blending
Coding
Coding standards
Efficiency
image processing
Partitioning
Random access
signal processing
video codecs
video coding
video signal processing
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Summary:Geometric partitioning mode (GPM) was newly adopted in Versatile Video Coding (VVC) to increase the partitioning precision of the arbitrary boundaries of actual objects. Note that the blending process of the GPM is not suitable for screen content with various sharp and strong edges. To alleviate this drawback, three new GPM matrices are introduced, and an efficient GPM is proposed to utilize four different GPM matrices and implicitly determine one of them depending on the discontinuity and gradients of the two predictors. The proposed method achieves an average BD‐rate reduction of 1.2% and 1.6% without additional computational complexity for random access and low‐delay B configurations, respectively, over the VVC test model (VTM18.0).
ISSN:0013-5194
1350-911X
DOI:10.1049/ell2.12961