Title:
撮像システム、画像処理装置、符号化装置、符号化方法及びランダムノイズを除去する方法
Document Type and Number:
Japanese Patent JP3783238
Kind Code:
B2
Abstract:
PCT No. PCT/JP96/02161 Sec. 371 Date Mar. 31, 1997 Sec. 102(e) Date Mar. 31, 1997 PCT Filed Jul. 31, 1996 PCT Pub. No. WO97/05745 PCT Pub. Date Feb. 13, 1997Since, in an imaging apparatus, a bit rate encoder for compressing and encoding a video data obtained by image pickup has a filter circuit for removing a random noise included in the video data and an encoder circuit for high-efficiency-encoding a filtered video data and since a filtering characteristic of the filter circuit is increased in response to an increased gain of the video data obtained by image pickup, it is possible to reduce a random noise presented when the gain is increased, and to reduce encoding bits to be allocated to the random noise. Therefore, it is possible to secure sufficient bits to be allocated to video data upon the encoding and to prevent a picture quality from being deteriorated because of lack of allocated bits upon the encoding.
Inventors:
Nagasawa Tomonori
Application Number:
JP50747697A
Publication Date:
June 07, 2006
Filing Date:
July 31, 1996
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N19/00; H04N9/64; H04N9/804; H04N19/117; H04N19/162; H04N19/42; H04N19/423; H04N19/46; H04N19/503; H04N19/51; H04N19/593; H04N19/61; H04N19/625; H04N19/70; H04N19/80; H04N19/85; H04N19/91; H04N19/93; H04N5/21; H04N5/77
Domestic Patent References:
| JP5268636A | ||||
| JP698314A | ||||
| JP6509201A |
Attorney, Agent or Firm:
Yoshitsuno Kakuda
Hironobu Isoyama
Hidemori Matsukuma
Hironobu Isoyama
Hidemori Matsukuma