Title:
眼底撮影装置
Document Type and Number:
Japanese Patent JP4426839
Kind Code:
B2
Abstract:
An apparatus for observing a fundus of an eye of an examinee has an observation optical system having an image-pickup element which obtains a time-series fundus image, a display part which displays the obtained fundus image on its monitor as a moving image, a determination part which determines a standard fundus image based on the displayed image, a memory part which stores the determined image, a calculation part which digitizes the image based on a threshold luminance level to obtain a digitized image thereof, digitizes a present fundus image obtained after the determination of the standard image based on the threshold luminance level to obtain a digitized image thereof and compares the obtained digitized images two-dimensionally to obtain their positional difference, and a display control part for correcting a display position of the present fundus image based on the obtained positional difference to display the corrected image on the monitor.
More Like This:
Inventors:
Junichi Akita
Akihiro Fujishiro
Toshifumi Kakutani
Naoyuki Kondo
Akihiro Fujishiro
Toshifumi Kakutani
Naoyuki Kondo
Application Number:
JP2003431762A
Publication Date:
March 03, 2010
Filing Date:
December 26, 2003
Export Citation:
Assignee:
NIDEK CORPORATION
International Classes:
A61B3/14; A61B3/12; A61B3/15
Domestic Patent References:
| JP3009723A | ||||
| JP11205654A | ||||
| JP7136127A | ||||
| JP61227493A | ||||
| JP9070389A | ||||
| JP9192106A | ||||
| JP2003164431A | ||||
| JP2001223932A | ||||
| JP4336677A |