Endoscope

The endoscope (1) comprises an objective optical system (11) provided with a movable lens, a CCD (12) that captures images of the subject through the objective optical system (11), an edge enhancement unit (36) that performs edge enhancement on the image generated from the CCD (12) and generates an...

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Bibliographic Details
Main Author IWASAKI TOMOKI
Format Patent
LanguageChinese
English
Published 20.03.2013
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SURGERY
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Summary:The endoscope (1) comprises an objective optical system (11) provided with a movable lens, a CCD (12) that captures images of the subject through the objective optical system (11), an edge enhancement unit (36) that performs edge enhancement on the image generated from the CCD (12) and generates an edge component signal, a focus evaluation unit (40) that assesses the state of focus by assessing the signal distribution of the edge component signal, and an actuator driving unit (42) that moves the movable lens to the focus position on the basis of the state of focus.
Bibliography:Application Number: CN201180033880