caa a22 4500 605447217 CHVBK 20210128100131.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s11042-013-1827-8 doi (NATIONALLICENCE)springer-10.1007/s11042-013-1827-8 Fast intra-mode decision method for luma and chroma blocks for H.264/AVC [Elektronische Daten] [Hyungwook Kim, Sojeong Lim, Sungwook Yu] This paper presents a fast and efficient intra-mode decision method for H.264/AVC. The proposed method makes use of several directional measures that are based not only on the pixels in an image block but also on the neighboring pixels. As a result, the proposed method can predict the dominant direction of an image block more accurately than the other methods. It also considers various kinds of candidate modes, while efficiently controlling the number of modes to be examined. In the chroma mode decision, the proposed method uses the correlation between the chroma mode and the 16 × 16 luma mode to reduce the encoding complexity. By combining all these techniques in an efficient way, the proposed method not only improves the coding performance, but also reduces the encoding time significantly compared to conventional intra-mode decision methods. Springer Science+Business Media New York, 2013 Intra-prediction nationallicence Mode decision nationallicence Spatial correlation nationallicence H.264/AVC nationallicence Kim Hyungwook School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut Lim Sojeong School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut Yu Sungwook School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4641-4653 1380-7501 74:13<4641 2015 74 11042 https://doi.org/10.1007/s11042-013-1827-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-013-1827-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Hyungwook School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut NATIONALLICENCE 700 1- Lim Sojeong School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut NATIONALLICENCE 700 1- Yu Sungwook School of Electrical and Electronics Engineering, Chung-Ang University, 221 HeukSeok-Dong DongJak-Gu, 156-756, Seoul, South Korea aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4641-4653 1380-7501 74:13<4641 2015 74 11042