Mode-Dependent Transforms for Coding Directional Intra Prediction Residuals

• Published in: IEEE transactions on circuits and systems for video technology Vol. 22; no. 4; pp. 545 - 554
• Main Authors: Chuohao Yeo, Yih Han Tan, Zhengguo Li, Rahardja, S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2012; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Coding, codes; Correlation; Covariance matrix; Encoding; Exact sciences and technology; HEVC; Image coding; Image processing; Information, signal and communications theory; Predictive models; Signal and communications theory; Signal processing; Telecommunications and information theory; Transforms; Video coding; Video coding; Performance evaluation; Image processing; Multipoint method; transforms; HEVC; Discrete sine transform; Implementation; Video signal processing; Learning; Image coding; Transform coding; Residual impurity; Gain

The use of mode-dependent transforms for coding directional intra prediction residuals has been previously shown to provide coding gains, but the transform matrices have to be derived from training. In this paper, we derive a set of separable mode-dependent transforms by using a simple separable, di...