Invention Grant
US09179165B2 Video encoding control method, video encoding apparatus and video encoding program
有权
视频编码控制方法，视频编码装置和视频编码程序
- Patent Title: Video encoding control method, video encoding apparatus and video encoding program
- Patent Title (中): 视频编码控制方法，视频编码装置和视频编码程序
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Application No.: US13695700Application Date: 2011-04-28
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Publication No.: US09179165B2Publication Date: 2015-11-03
- Inventor: Masaki Kitahara , Atsushi Shimizu , Naoki Ono
- Applicant: Masaki Kitahara , Atsushi Shimizu , Naoki Ono
- Applicant Address: JP Tokyo
- Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2010-106851 20100507; JP2010-106852 20100507; JP2010-106853 20100507; JP2010-106854 20100507; JP2010-106855 20100507
- International Application: PCT/JP2011/060364 WO 20110428
- International Announcement: WO2011/138923 WO 20111110
- Main IPC: H04N7/26
- IPC: H04N7/26 ; H04N19/85 ; H04N19/172 ; H04N19/15 ; H04N19/61 ; H04N19/114 ; H04N19/117 ; H04N19/124 ; H04N19/132 ; H04N19/152 ; H04N19/177 ; H04N19/194 ; H04N19/80
Abstract:
In a video encoding control method of the present invention, each picture is encoded in units of encoding-order picture groups such as GOPs, and when CPB underflow has occurred, an encoding parameter such as a quantization parameter and filter strength of a pre-filter is changed in such a manner that a generated bit rate is reduced, and an encoding-order picture group that is being encoded is re-encoded from its first picture using the changed encoding parameter.
Public/Granted literature
- US20130051456A1 VIDEO ENCODING CONTROL METHOD, VIDEO ENCODING APPARATUS AND VIDEO ENCODING PROGRAM Public/Granted day:2013-02-28
Information query
