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1. US20140316195 - Endoscope system, processor device of endoscope system, and image processing method

官庁
アメリカ合衆国
出願番号 14322670
出願日 02.07.2014
公開番号 20140316195
公開日 23.10.2014
特許番号 09629527
特許付与日 25.04.2017
公報種別 B2
IPC
A61B 1/04
A生活必需品
61医学または獣医学;衛生学
B診断;手術;個人識別
1視覚または写真的検査による人体の窩部または管部の内側の診断を行なうための機器,例.内視鏡そのための照明装置
04撮影機またはテレビジョン装置と結合されているもの
A61B 1/06
A生活必需品
61医学または獣医学;衛生学
B診断;手術;個人識別
1視覚または写真的検査による人体の窩部または管部の内側の診断を行なうための機器,例.内視鏡そのための照明装置
06照明装置を有するもの
A61B 1/00
A生活必需品
61医学または獣医学;衛生学
B診断;手術;個人識別
1視覚または写真的検査による人体の窩部または管部の内側の診断を行なうための機器,例.内視鏡そのための照明装置
G06T 5/50
G物理学
06計算;計数
Tイメージデータ処理または発生一般
5イメージの強調または復元
50二つ以上のイメージの使用によるもの,例.平均化,減算
CPC
A61B 1/0638
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
06with illuminating arrangements
0638providing two or more wavelengths
A61B 1/00009
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
00002Operational features of endoscopes
00004characterised by electronic signal processing
00009of image signals
A61B 1/063
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
06with illuminating arrangements
063for monochromatic illumination
A61B 1/0646
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
06with illuminating arrangements
0646with illumination filters
A61B 1/0653
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
06with illuminating arrangements
0653with wavelength conversion
G06T 5/50
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
50by the use of more than one image, e.g. averaging, subtraction
出願人 FUJIFILM Corporation
発明者 Toshihiko Kaku
Takayuki Iida
代理人 Birch, Stewart, Kolasch & Birch, LLP
優先権情報 2012013316 25.01.2012 JP
発明の名称
(EN) Endoscope system, processor device of endoscope system, and image processing method
要約
(EN)

Broadband light BB and narrowband light NB are simultaneously irradiated to a subject. A blue signal B, a green signal G, and a red signal R are obtained by imaging the subject using a color CCD 33. A base image is generated from the signals B, G, and R of three colors. A B/G image having a B/G ratio is generated. A superficial blood vessel extraction image is obtained by extracting a pixel, in which the B/G ratio is equal to or less than a boundary value Ls between the mucous membrane and the superficial blood vessel, from the B/G image. A medium-deep blood vessel extraction image is obtained by extracting a pixel, in which the B/G ratio is equal to or greater than a boundary value Ld between the mucous membrane and the medium-deep blood vessel. The boundary values Ls and Ld differ depending on each observation mode.