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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dahee Lee Seungha Yang Hiuk Jae Shim Byeungwoo Jeon |
| Copyright Year | 2015 |
| Description | Author affiliation: Sch. of Electr. & Comput. Eng., Sungkyunkwan Univ., Suwon, South Korea (Dahee Lee; Seungha Yang; Hiuk Jae Shim; Byeungwoo Jeon) |
| Abstract | This paper investigates a fast transform skip mode decision method which can reduce residual coding complexity of a transform skip tool for SCC (Screen Content Coding) extension of HEVC (High Efficiency Video Coding). Noticing the high tendency of transform skip mode occurring in 4×4 transform blocks in a coding unit (CU) coded as the intra block copy, the proposed fast method is designed to select either transform skip or coded block flag being zero for 4×4 blocks in a CU coded as intra block copy. Experiments verify reduction of total encoding time by average 3.0% and 4×4 transform block encoding time by 28.2% with only a slight increase of BD-rate by 0.22%. In addition, a modified transform skip mode signaling method is designed in order to minimize the coding efficiency loss due to the proposed fast mode decision. It shows reduction of total encoding time by 2.9% on average and encoding time of 4×4 transform block by 27.6% with only 0.05% BD-rate degradation. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 197185 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479958658 |
| DOI | 10.1109/BMSB.2015.7177193 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-06-17 |
| Publisher Place | Belgium |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Graphics Degradation Video coding HEVC (high efficiency video coding) screen content coding Transforms Cameras Encoding Complexity theory transform skip mode |
| Content Type | Text |
| Resource Type | Article |
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