Patent ID: 9402024
Filing Date: 2016-07-26
CPC Classification: G02B,G06T,H04N

Claim Text:
1. An imaging device comprising: an imaging unit configured to capture a subject image formed by an imaging lens and generate an image including the subject image; a first subject distance estimation unit configured to calculate an estimated subject distance of the subject focused on by a focus detection unit and in the subject image captured by the imaging unit; a restoration filter storage unit configured to store multiple restoration filters created based on at least a point spread function corresponding to a subject distance; an estimation variation acquisition unit configured to acquire a maximum infinity-side estimation variation in a range of estimation variation with respect to the subject distance estimated by the first subject distance estimation unit; a second subject distance estimation unit configured to calculate a subject distance adding the maximum infinity-side estimation variation acquired by the estimation variation acquisition unit to the subject distance estimated by the first subject distance estimation unit; a restoration filter selection unit configured to select a restoration filter corresponding to an infinity side closest to the subject distance calculated by the second subject distance estimation unit among the multiple restoration filters stored in the restoration filter storage unit; and a restoration processing unit configured to perform restoration processing of the image acquired by the imaging unit using the restoration filter selected by the restoration filter selection unit.