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Title:
A ranging device and a method for controlling the same
Document Type and Number:
Japanese Patent JP6091318
Kind Code:
B2
Abstract:
A depth measurement apparatus is adapted for acquiring a first and second image signals, calculating a correlation value for plural shift amounts, acquiring plural provisional shift amounts, reconstructing the first image signal using a filter corresponding to the provisional shift amounts, analyzing a contrast change by reconstruction, and determining depth on the basis of contrast analysis. The provisional shift amount is acquired by determining a first shift amount at which an extreme value of the correlation value is given, and a first range, which is a range of a predetermined shift amount including the first shift amount, into a plurality of second ranges, and acquiring provisional shift amounts for each of the second ranges.

Inventors:
大井川 誠
Application Number:
JP2013093786A
Publication Date:
March 08, 2017
Filing Date:
April 26, 2013
Export Citation:
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Assignee:
キヤノン株式会社
International Classes:
G02B7/28; G02B7/34; G03B13/36; G03B35/10; H04N5/225; H04N5/232
Attorney, Agent or Firm:
世良 和信
川口 嘉之
和久田 純一
坂井 浩一郎
中村 剛
丹羽 武司



 
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