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Fast Intra Mode Decision for Screen Contents Coding in HEVC
- Authors
- Ahn, Yong-Jo; Wu, Xiangjian; Sim, Donggyu; Han, Woo-Jin
- Issue Date
- Sep-2016
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- HEVC; intra coding; screen contents coding; fast mode decision
- Citation
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, v.E99D, no.9, pp.2410 - 2412
- Journal Title
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
- Volume
- E99D
- Number
- 9
- Start Page
- 2410
- End Page
- 2412
- ISSN
- 1745-1361
- Abstract
- In this letter, fast intra mode decision algorithms for HEVC Screen Contents Coding ( SCC) are proposed. HEVC SCC has been developed to efficiently code mixed contents consisting of natural video, graphics, and texts. Comparing to HEVC version 1, the SCC encoding complexity significantly increases due to the newly added intra block copy mode. To reduce the heavy encoding complexity, the evaluation orders of multiple intra modes are rearranged and several early termination schemes based on intermediate coding information are developed. Based on our evaluation, it is found that the proposed method can achieve encoding time reduction of 13 similar to 30% with marginal coding gain or loss, compared with HEVC SCC test model 2.0 in all intra ( AI) case.
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