Search International and National Patent Collections

1. (WO2018037806) IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND IMAGE CAPTURING OPTICAL SYSTEM SET

Pub. No.:    WO/2018/037806    International Application No.:    PCT/JP2017/026657
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Jul 25 01:59:59 CEST 2017
IPC: H04N 5/232
G06T 5/00
G06T 5/20
Applicants: FUJIFILM CORPORATION
富士フイルム株式会社
Inventors: KUNUGISE, Takashi
椚瀬 高志
NARUSE, Yousuke
成瀬 洋介
HAYASHI, Kenkichi
林 健吉
Title: IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND IMAGE CAPTURING OPTICAL SYSTEM SET
Abstract:
Provided are an image processing device, an image processing system, an image processing method, and an image capturing optical system set which make it possible for an increase in cost to be suppressed and for an image to be restored appropriately. In an image capturing optical system, when a first modulation transfer function (MTF) curve M1 representing an MTF value in a first azimuth direction with respect to an amount of defocus from a focus position is compared with a second MTF curve M2 representing the MTF value in a second azimuth direction with respect to an amount of defocus from the focus position, a ratio between a peak value P1 of the first MTF curve M1 and a peak value P2 of the second MTF curve M2 is at least equal to 2, and a ratio between a full width at half maximum HW1 of the first MTF curve M1 and a full width at half maximum HW2 of the second MTF curve M2 is at least equal to 1.25. A restoration filter is a common filter corresponding to a representative value of a transfer function in a plurality of image capturing optical systems of the same type.