发明名称 |
A BUFFER-BASED RATE CONTROL EXPLOITING FRAME COMPLEXITY, BUFFER LEVEL AND POSITION OF INTRA FRAMES IN VIDEO CODING |
摘要 |
<p>A device and method of controlling bitrate in video coding of a sequence of frames including series of Inter frames separated by Intra frames, wherein the coded frames are validated in a video buffering device prior to transmission of the coded frames and wherein the method comprises: measuring frame complexity in the sequence of frames; for each Inter frame, calculating a target buffer level of the video buffering device in relation to a distance between the Inter frame and a next Intra frame; for each Inter frame, calculating a target frame size in relation to the distance between the Inter frame and the next Intra frame, the measured frame complexity, a current buffer level of the video buffering device and the calculated target buffer level of the video buffering device; and using the calculated target frame size to control bitrate in video coding of the sequence of frames.</p> |
申请公布号 |
WO2008154742(A1) |
申请公布日期 |
2008.12.24 |
申请号 |
WO2008CA01168 |
申请日期 |
2008.06.19 |
申请人 |
VANTRIX CORPORATION;COULOMBE, STEPHANE;LABONTE, FRANCIS |
发明人 |
COULOMBE, STEPHANE;LABONTE, FRANCIS |
分类号 |
H04N7/50;H04N19/89 |
主分类号 |
H04N7/50 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|