Image taking apparatus
The present invention provides an image taking apparatus which determines an exposure from a photometry result in accordance with a program chart and takes an image by exposing an image sensor to light with the determined exposure. The image taking apparatus includes a motion detection device which detects motion of an image taken by the image sensor on the basis of images continuously taken by the image sensor, and a program chart switching device which switches between program charts depending on a magnitude of motion detected by the motion detection device such that a shutter speed becomes faster with respect to a single photometry result.
1 . An image taking apparatus which determines an exposure from a photometry result in accordance with a program chart and takes an image by exposing an image sensor to light with the determined exposure, comprising:
a motion detection device which detects motion of an image taken by the image sensor on the basis of images continuously taken by the image sensor; and
a program chart switching device which switches between program charts depending on a magnitude of motion detected by the motion detection device such that a shutter speed becomes faster with respect to a single photometry result.
2 . The image taking apparatus according to claim 1 , wherein the motion detection device detects the motion of the image taken by the image sensor on the basis of a difference between an image of a current frame and an image of an immediately preceding frame taken by the image sensor.
3 . The image taking apparatus according to claim 1 , wherein a plurality of program charts to be selected depending on a magnitude of motion detected by the motion detection device are prepared.
4 . The image taking apparatus according to claim 2 , wherein a plurality of program charts to be selected depending on a magnitude of motion detected by the motion detection device are prepared.