IMAGING APPARATUS

PROBLEM TO BE SOLVED: To increase an AF speed by thinning-out reading, while maintaining AF accuracy.SOLUTION: The edge intensity of an input image obtained by through photographing is individually evaluated in horizontal and vertical directions, to obtain a horizontal edge intensity evaluation valu...

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Bibliographische Detailangaben
Hauptverfasser:	FURUYAMA KANICHI, UEDA MASAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To increase an AF speed by thinning-out reading, while maintaining AF accuracy.SOLUTION: The edge intensity of an input image obtained by through photographing is individually evaluated in horizontal and vertical directions, to obtain a horizontal edge intensity evaluation value Eand a vertical edge intensity evaluation value E. The evaluation value Eis compared with the evaluation value Eby the half-depression operation of a shutter button. When E>Eis obtained, a thinning-out reading mode MDin which a vertical thinning-out amount is larger than a horizontal thinning-out amount is selected as a target reading mode. When E