Title:
動画像符号化装置及び動画像符号化プログラム
Document Type and Number:
Japanese Patent JP4668767
Kind Code:
B2
Abstract:
In encoding of moving pictures, I-frame is inserted when a scene change occurs. If scene changes frequently occur in the range of a predetermined amount-of-information allocation, the amount of information allocated to an encoding process on I-frame becomes enlarged. Therefore, the amount of information cannot be sufficiently reserved for another coding, thereby considerably degrading the quality of an image. Thus, a scene change detection threshold is obtained depending on the remainder in the VBV buffer, the scene change detection threshold is compared with a scene change detection value for determination of the occurrence of a scene change, and it is determined whether or not a scene change has occurred based on the comparison result.
Inventors:
Kubota Tomonori
Makiko Konoshima
Yuichiro Teshigawara
Masatsugu respect
Makiko Konoshima
Yuichiro Teshigawara
Masatsugu respect
Application Number:
JP2005317632A
Publication Date:
April 13, 2011
Filing Date:
October 31, 2005
Export Citation:
Assignee:
Fujitsu Semiconductor Limited
International Classes:
H04N19/50; H04N19/00; H04N19/114; H04N19/115; H04N19/136; H04N19/137; H04N19/142; H04N19/152; H04N19/177; H04N19/196; H04N19/503; H04N19/51; H04N19/577; H04N19/61; H04N19/625; H04N19/87
Domestic Patent References:
| JP2001204018A | ||||
| JP6268997A | ||||
| JP9130732A | ||||
| JP10066092A | ||||
| JP8009374A |
Attorney, Agent or Firm:
Yoshiyuki Osuga