DEPTH MEASUREMENT APPARATUS, IMAGE PICKUP APPARATUS, DEPTH MEASUREMENT METHOD, AND DEPTH MEASUREMENT PROGRAM

摘要

Provided is a depth measurement apparatus that measures depth information on a subject by using a plurality of images taken under different imaging parameters and having different blurs, the depth measurement apparatus including a spatial frequency determination unit that determines a spatial frequency band from a spatial frequency present in at least one of the plurality of images, an image comparison unit that compares the plurality of images by using the component of the spatial frequency band of the plurality of images and outputs a depth dependence value dependent on the depth of the subject, and a depth calculation unit that calculates the depth from the depth dependence value and the spatial frequency band.