Patent
Phase difference detection device, imaging apparatus, signal level correction method for phase difference detection device, and signal level correction program
Makoto Oikawa,真 追川 +1 more
Abstract:
PROBLEM TO BE SOLVED: To provide a phase difference detection device for properly deciding reliability of the result of detecting a phase difference even for a pair of image signals out of phase without requiring imaging with uniform light, and to provide an imaging apparatus, a signal level correction method, and a signal level correction program for a phase difference detection device. SOLUTION: The ratio between an image A and an image B is obtained as the comparison result of the images A and B obtained from a pair of optical images. The variance is then calculated in order to evaluate the statistical fluctuation of the ratio obtained for each pixel. The fluctuation due to the variance is evaluated for each phase difference while the phase between the image A and the image B is shifted. An output difference between the images A and B is corrected on the basis of the evaluation result of the fluctuation. COPYRIGHT: (C)2010,JPO&INPITread more
Citations
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References
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Solid-state image pickup device, its control method, image pickup device, basic array of photoelectric conversion cell and storage medium
TL;DR: In this article, the problem of accurate AF and AE operations without increasing a camera mechanism and power consumption was solved by using at least a part of a photoelectric conversion cell group for the purpose of outputting a signal except the signals to form an image signal.
Patent
Focus detecting device, image pickup device, focus detecting method, and medium presenting processing program
TL;DR: In this article, the focus detection of the photographic lens was performed based on the calculation result of the 2nd correlative calculation means (step S208) for a corrected image signal.
Patent
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Otsuka Yasunobu,Inahata Tatsuo +1 more
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