| 摘要 |
Ambiguous distinction of PSFs between positions in front of and behind an imaging point corresponding to a distance to an object is eliminated without decreasing the amount of light to be exposed, and the distance to the object is estimated from a small number of captured images. An imaging apparatus includes: an imaging device which captures an image; an optical system for forming an image of an object on the imaging device; a birefringent substance having a birefringence effect; and a distance measurement unit which measures a distance from the imaging device to the object, using the captured image and a point spread function having a form changed by the optical element between positions in front of and behind an image point corresponding to the distance to the object. |
