Nidek Co., Ltd.

Hirofumi Yogo

Yukihiro Higuchi

Ryosuke Shiba

Shinya Iwata

Junpei Nishiyama

Hideki Aono

An OCT apparatus has a wavelength sweep light source changing a sweep frequency between a first sweep frequency and a second sweep frequency, an OCT optical system, an image processor, an FPN generation optical system generating a first FPN and a second FPN generated at a position separated from a zero delay position with respect to the first FPN, a detector, and a controller. The controller acquires first correction information based on the first FPN detected in a case of the first sweep frequency, and second correction information based on the second FPN detected in a case of the second sweep frequency. The controller applies the first correction information to an arithmetic process on a spectral interference signal obtained in the case of the first sweep frequency, and the second correction information to the arithmetic process on the spectral interference signal obtained in the case of the second sweep frequency.

OCT apparatus

Provided are ophthalmologic image processing method, including an acquisition step of acquiring OCT data of an eye to be examined based on a spectral interference signal output from an OCT optical system, a setting step of setting a depth region including an image position of a tissue as an extraction region for data on one-direction side from a zero delay position in the OCT data, and a display control step of extracting extracted OCT data corresponding to the extraction region from the OCT data and displaying the extracted OCT data in a display region set in advance on a monitor, and an OCT apparatus that executes the method.

Growing community of inventors

Aichi, Japan

Hirofumi Yogo