Title:
内視鏡装置
Document Type and Number:
Japanese Patent JP5143293
Kind Code:
B2
Abstract:
In an endoscope apparatus, a signal obtained by image pickup by a CCD having a color separation filter is separated into a first luminance signal and a first color difference signal by a Y/C separation circuit, and thereafter converted into three primary color signals and a second color difference signal by a first matrix circuit and a second matrix circuit, and a signal intensity ratio among the three primary color signals is calculated by a signal intensity ratio calculation circuit interposed between the first and the second matrix circuits. Conversion is performed on the first luminance signal and the second color difference signal by a third matrix circuit such that color separation is performed on the first luminance signal according to the signal intensity ratio.
Inventors:
Mountain Saki Kenji
Application Number:
JP2011548502A
Publication Date:
February 13, 2013
Filing Date:
June 07, 2011
Export Citation:
Assignee:
オリンパスメディカルシステムズ株式会社
International Classes:
A61B1/04; A61B1/00; A61B1/06; G02B23/24; H04N7/18
Domestic Patent References:
| JP2004321608A | 2004-11-18 | |||
| JP2000221417A | 2000-08-11 | |||
| JP2008036035A | 2008-02-21 | |||
| JP2000209605A | 2000-07-28 | |||
| JP2004321608A | 2004-11-18 | |||
| JP2000221417A | 2000-08-11 |
Attorney, Agent or Firm:
Susumu Ito