Title :
A novel three-dimensional transform and its supporting tools for improving inter coding performance in H.264/AVC
Author :
Jo, Jaekyu ; Cho, Hye-Jeong ; Lee, Jinho ; Jung, Seyoon ; Oh, Seoung-Jun
Abstract :
This paper proposes a three-dimensional transform (3DT) and its supporting tools: 3DT_Env. 3DT_Env improves H.264/AVC inter coding performance from four aspects: 1) H. 264/AVC coding is enhanced with the 3DT, 2) As the 3DT is proposed, a quantizer should be redesigned, 3) A new scanning method which considers the directions of INTER16x8 and INTER8x16 modes improves the efficiency of H.264/AVC, and 4) a threshold for cost calculation is optimized for the 3DT. Compared to H.264/AVC, the improvements can bring on average 4.07% coding gain for CABAC in high profile, with average coding gain of 5.34% for HD sequences.
Keywords :
image sequences; video coding; 3DT_Env; H.264-AVC coding; HD sequences; intercoding performance; scanning method; three-dimensional transform; Automatic voltage control; Bit rate; Encoding; Image coding; Quantization; Transforms; Video coding; 3DT; 3DT_Env; H.264/AVC; coding efficiency; quantizer; scanning method; threshold;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5651022
