Method for control video frequency coding rate |
Title： |
| Method for control video frequency coding rate |
|
Application Number： |
200610171504 |
Application Date： |
2006/12/30 |
Announcement Date： |
2007/06/27 |
Pub. Date： |
|
Publication Number： |
1988659 |
Announcement Number： |
|
Grant Date： |
|
Granted Pub. Date： |
|
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04N 7/24, H04N 7/26 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Lu Jianhua, Yu Chengwei |
Key Words： |
video frequency, coding rate, control |
Abstract： |
The invention relates to a method for rate control of video coding, which includes: it allocates the surplus or overruns bit to the follow-up GOP in the controlling method for the GOP layer rate. It sets the quantitative parameters in accordance with the image complexity and pre-bit-rate allocation of I frame to make the use of resources more rationally and effectively in frame-rate controlling method. It controls the quantitative parameters of the current P frames to contain the serious downward trend of P Frame encoding quality due to lack of residual rate when GOP P frame coding rapidly decline. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
