发明名称 |
RATENSTEUERTECHNIKEN MIT ZWEI DURCHGÄNGEN FÜR DIE VIDEOCODIERUNG UNTER VERWENDUNG VON RATENVERZERRUNGS-KENNGRÖSSEN |
摘要 |
This disclosure describes rate control techniques that can improve video coding based on a 'two-pass' approach. The first pass codes a video sequence using a first set of quantization parameters (QPs) for the purpose of estimating rate-distortion characteristics of the video sequence based on the statistics of the first pass. A second set of QPs can then be defined for a second coding pass. The estimated rate-distortion characteristics of the first pass are used to select QPs for the second pass in a manner that minimizes distortion of the frames of the video sequence. |
申请公布号 |
AT525858(T) |
申请公布日期 |
2011.10.15 |
申请号 |
AT20060804008T |
申请日期 |
2006.09.21 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
WANG, HAOHONG;MALAYATH, NARENDRANATH |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|