Article
Version 1
Preserved in Portico This version is not peer-reviewed
Discrete Sine Transform-Based Interpolation Filter for Video Compression
Version 1
: Received: 14 October 2017 / Approved: 14 October 2017 / Online: 14 October 2017 (13:53:17 CEST)
How to cite: Kim, M.; Lee, Y.-L. Discrete Sine Transform-Based Interpolation Filter for Video Compression. Preprints 2017, 2017100097. https://doi.org/10.20944/preprints201710.0097.v1 Kim, M.; Lee, Y.-L. Discrete Sine Transform-Based Interpolation Filter for Video Compression. Preprints 2017, 2017100097. https://doi.org/10.20944/preprints201710.0097.v1
Abstract
High Efficiency Video Coding (HEVC) uses an 8-point filter and a 7-point filter, which are based on the discrete cosine transform (DCT), for the 1/2-pixel and 1/4-pixel interpolations, respectively. In this paper, discrete sine transform (DST)-based interpolation filters (IF) are proposed. The first proposed DST-based IFs (DST-IFs) use 8-point and 7-point filters for the 1/2-pixel and 1/4-pixel interpolations, respectively. The final proposed DST-IFs use 12-point and 11-point filters for the 1/2-pixel and 1/4-pixel interpolations, respectively. These DST-IF methods are proposed to improve the motion-compensated prediction in HEVC. The 8-point and 7-point DST-IF methods showed average BD-rate reductions of 0.7% and 0.3% in the random access (RA) and low delay B (LDB) configurations, respectively. The 12-point and 11-point DST-IF methods showed average BD-rate reductions of 1.4% and 1.2% in the RA and LDB configurations for the Luma component, respectively.
Keywords
HEVC; Interpolation filter; Sinc; DCT (discrete cosine transform); DST (discrete sine transform)
Subject
Computer Science and Mathematics, Discrete Mathematics and Combinatorics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment