The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2017
Filed:
Oct. 13, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Kiyokatsu Ikemoto, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a depth detection apparatus having: a shift amount acquisition unit to acquire a provisional image shift amount; a filter processing unit to perform filter processing on one or both of the first and second signal; and a depth deriving unit to derive the depth information on an object, based on a positional shift amount between the filtered first signal and the filtered second signal. A phase term of the filter is a function generated by a second function by a coefficient, wherein the second function is generated based on a phase transfer function corresponding to the first or second pupil region and on the provisional image shift amount, and the coefficient is a real number greater than 0 and smaller than 1.