公开(公告)号：US09763558B2

公开(公告)日：2017-09-19

申请号：US14314110

申请日：2014-06-25

Applicant: OLYMPUS CORPORATION

Inventor： Naruyasu Kobayashi ,  Kazuhiro Takizawa

IPC: A61B1/04 ,  A61B1/06 ,  A61B1/00 ,  A61B1/045 ,  H04N5/217 ,  H04N5/225 ,  H04N5/243

CPC classification number: A61B1/00009 ,  A61B1/00193 ,  A61B1/045 ,  H04N5/217 ,  H04N5/2256 ,  H04N5/243 ,  H04N2005/2255

Abstract: An endoscope apparatus includes an endoscope that includes an imaging section that captures an object, and an illumination section that includes an irradiation port that illuminates the object, the imaging section and the illumination section being provided in an end section of the endoscope, a distance information acquisition section that acquires distance information about a distance from the end section of the endoscope to the object, a light distribution pattern determination section that determines a light distribution pattern of illumination light applied from the illumination section based on the acquired distance information, and a gradation correction section that performs a gradation correction process on a captured image acquired by the imaging section.

公开(公告)号：US10165934B2

公开(公告)日：2019-01-01

申请号：US15334378

申请日：2016-10-26

Applicant: OLYMPUS CORPORATION

Inventor： Makoto Igarashi ,  Yasunori Morita ,  Kazuhiro Takizawa

IPC: A61B1/06 ,  A61B1/04 ,  A61B1/00 ,  A61B1/05 ,  A61B1/07 ,  G02B23/24 ,  G02B5/22

Abstract: An endoscope apparatus has an image pickup device having a first pixel having a sensitivity in a predetermined wavelength band, and a second pixel having a sensitivity in a wavelength band including a part of the predetermined wavelength band, a light source section configured to generate a light for irradiating a subject, an intensity of which reaches a peak in the part of the predetermined wavelength band to which the second pixel has a sensitivity, and an addition section configured to generate an addition signal obtained by adding a first image pickup signal obtained by receiving a return light from the subject at a time of the subject being irradiated in the first pixel, and a second image pickup signal obtained by receiving a return light from the subject in the second pixel.