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Proceedings Paper

A novel distortion model for quadtree coding in high efficiency video coding
Author(s): Bumshik Lee; Sangsoo Ahn; Munchurl Kim
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Paper Abstract

In this paper, a novel distortion model based on a mixture of Laplacian distributions is presented for the transform coefficients of predicted residues in quadtree coding. The mixture Laplacian distribution is made on the coding structure with different quadtree coding unit (CU) depth. Moreover, for intra-coded CU, the distortion model is asymptotically simplified based on the signal characteristics of the transform coefficient. The proposed mixture model of multiple Laplacian distributions is tested for the High Efficiency Video Coding (HEVC) Test Model (HM) with quadtreestructured Coding Unit (CU) and Transform Unit (TU). The experimental results show that the proposed model achieves more accurate results of distortion estimation than the single probability models.

Paper Details

Date Published: 14 February 2012
PDF: 9 pages
Proc. SPIE 8305, Visual Information Processing and Communication III, 830503 (14 February 2012); doi: 10.1117/12.908102
Show Author Affiliations
Bumshik Lee, KAIST (Korea, Republic of)
Sangsoo Ahn, KAIST (Korea, Republic of)
Munchurl Kim, KAIST (Korea, Republic of)

Published in SPIE Proceedings Vol. 8305:
Visual Information Processing and Communication III
Amir Said; Onur G. Guleryuz; Robert L. Stevenson, Editor(s)

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