Efficient intramode SKIP detection algorithm for H.264/AVC video encoder
- Authors
- Byung-Gyu Kim; Jong-Ho Kim
- Issue Date
- Sep-2006
- Publisher
- SPIE
- Citation
- Optical Engineering, v.45, no.9
- Journal Title
- Optical Engineering
- Volume
- 45
- Number
- 9
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148559
- DOI
- 10.1117/1.2354444
- ISSN
- 0091-3286
1560-2303
- Abstract
- A fast intramode SKIP detection algorithm based on the rate-distortion (RD) cost for an interframe (P slices) is proposed for H.264/AVC video encoding. There are three types of intrapredictions according to profiles. These are 16×16 and 4×4 intrapredictions for luminance and an 8×8 intraprediction for chroma. For the high profile, an 8×8 intraprediction is added for luminance. The 4×4 prediction mode has nine prediction directions with four directions for 16×16 and 8×8 luma, and 8×8 chrominance. In addition to the intermode search procedure, an intramode search causes a significant increase in the complexity and computational load for an interframe. To reduce the computational load of the intramode search at the interframe, the rate-distortion (RD) costs of the neighborhood MBs for the current MB are used, and we propose an adaptive thresholding scheme for the intraSKIP extraction.
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