Imaging device
First Claim
1. An imaging device, comprising:
- a first still image photographing unit that obtains a still image by one exposure;
a second still image photographing unit that generates a still image by dividing an exposure length a plurality of times to obtain a plurality of low brightness images, and aligning and combining the obtained plurality of low brightness images;
a first movement computation unit that calculates image movement from input images when still image photographing is not performed; and
a photographing mode switching unit that switches between the first still image photographing unit and the second still image photographing unit when commencing still image photographing, from information of the calculated image movement prior to making a still image photograph.
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Accused Products
Abstract
An imaging device is provided that predicts before still image photographing, whether alignment of a plurality of images obtained by the still image photographing mode should be performed based on the divided exposures and automatically switches photographing modes depending on the predicted result. The imaging device has a first movement computation unit that calculates image movement from input images when still image photograph is not performed, and a photographing mode switching unit that switches between a first still image photographing mode and a second still image photographing mode when starting photographing, based on image movement calculated by the first movement computation unit right before the photographing begins.
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Citations
16 Claims
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1. An imaging device, comprising:
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a first still image photographing unit that obtains a still image by one exposure;
a second still image photographing unit that generates a still image by dividing an exposure length a plurality of times to obtain a plurality of low brightness images, and aligning and combining the obtained plurality of low brightness images;
a first movement computation unit that calculates image movement from input images when still image photographing is not performed; and
a photographing mode switching unit that switches between the first still image photographing unit and the second still image photographing unit when commencing still image photographing, from information of the calculated image movement prior to making a still image photograph. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An imaging device, comprising:
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a still image photographing unit that generates a still image by dividing an exposure length to obtain a plurality of low-brightness images, and aligning and combining the obtained low-brightness images, wherein the still image photographing unit includes;
a movement computation unit that calculates image movement between an obtained second or later low-brightness image and the first low-brightness image when obtaining the second or later low-brightness image;
a judgment unit that determines whether to continue the divided exposures or to perform a one-shot exposure of the remaining low-brightness images from information of image movement calculated by the movement information computation unit;
an image obtaining unit that obtains an image corresponding to the remaining low-brightness images by performing the one-shot exposure of the remaining low-brightness images if the one-shot exposure of the remaining low-brightness images is selected; and
an image synthesis unit that generates a still image by aligning and combining an obtained image that corresponds to the remaining low-brightness images to the previously combined image. - View Dependent Claims (13, 14, 15, 16)
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Specification