Fast Transforms for Intra-prediction-based Image and Video Coding

In this paper, we provide an overview of the DCT/DST transform scheme for intra coding in the HEVC standard. A unique feature of this scheme is the use of DST-VII transforms in addition to DCT-II. We further derive factorizations for fast joint computation of DCT-II and DST-VII transforms of several...

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Bibliographic Details
Main Authors: Saxena, A., Fernandes, F. C., Reznik, Y. A.
Format: Conference Proceeding
Language:English
Subjects:
compression
DCT
Discrete cosine transforms
DST
HEVC
Manganese
transforms
Vectors
Video coding
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Summary:In this paper, we provide an overview of the DCT/DST transform scheme for intra coding in the HEVC standard. A unique feature of this scheme is the use of DST-VII transforms in addition to DCT-II. We further derive factorizations for fast joint computation of DCT-II and DST-VII transforms of several sizes. Simulation results for the DCT/DST scheme in the HM reference software for HEVC are also provided together with a discussion on computational complexity.
ISSN:1068-0314
2375-0359
DOI:10.1109/DCC.2013.9