Distance detecting device, imaging apparatus, distance detecting method and parallax-amount detecting device
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United States of America Patent
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Mar 14, 2017
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app pub date -
Mar 27, 2015
filing date -
Mar 31, 2014
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Abstract
A distance detecting device includes a distance calculation unit configured to calculate a distance to a target of imaging based on a first signal corresponding to a luminous flux having passed through a first pupil region of an exit pupil in an imaging optical system, and a second signal corresponding to a luminous flux having passed through a second pupil region different from the first pupil region, and a signal processing unit configured to perform a filtering process on at least one of the first signal and the second signal by using a band pass filter having a lower number of cells in a first direction than a number of cells in a second direction perpendicular to the first direction, and a filter for phase correction having a higher number of cells in the first direction than the number of cells in the second direction.
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