发明名称 |
METHOD AND APPARATUS FOR DETERMINING INTRA PREDICTION MODE, AND METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO USING SAME |
摘要 |
Disclosed are a method and apparatus for determining an intra prediction mode, and for encoding/decoding video using the same. An apparatus for determining an intra prediction mode is provided, the apparatus comprising a calculator to calculate a variation of adjacent pixels to a current block; a threshold setter to set a threshold to evaluate the pixel variation; a comparator to compare between the variation and the threshold; a first prediction mode determination unit to determine a single predetermined prediction mode to be an optimal prediction mode if the variation is below the threshold; and a second prediction mode determination unit to determine a particular prediction mode from a plurality of prediction modes to be the optimal prediction mode through a rate-distortion optimization by performing intra predictions in the plurality of prediction modes if the variation is greater than or equal to the threshold.
|
申请公布号 |
US2011176608(A1) |
申请公布日期 |
2011.07.21 |
申请号 |
US20080937252 |
申请日期 |
2008.12.18 |
申请人 |
SK TELECOM CO., LTD. |
发明人 |
KIM HAYOON;LEE YUNGLYUL;MOON JOOHEE;KIM HAEKWANG;JEON BYEUNGWOO;KIM DONGKYUN;KIM DAEYEON;HAN KIHUN |
分类号 |
H04N7/12 |
主分类号 |
H04N7/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|