Image capturing apparatus and method of controlling the same

摘要

An image capturing apparatus includes an image sensor, a shutter, a composition unit configured to perform continuous shooting of a plurality of exposure images by the image sensor and compose the plurality of images, a driving unit configured to drive the shutter and the image sensor to capture a first black image before the continuous shooting while the image sensor is shielded from light and to capture a second black image after the continuous shooting while the image sensor is shielded from light, and an image processing unit configured to perform first noise reduction processing using the first black image and second noise reduction processing using the second black image for each of a plurality of images obtained by the continuous shooting or an image obtained by composing the plurality of images.

主权项

1. An image capturing apparatus comprising:
an image sensor including a plurality of pixels arranged two-dimensionally; a shutter that shields said image sensor from light; a controller that controls to perform continuous shooting of a plurality of exposure images by said image sensor and compose the plurality of exposure images obtained by the continuous shooting; the controller that controls to acquire a first black image before the continuous shooting by causing said image sensor to accumulate electric charges while said image sensor is shielded from light by said shutter and to acquire a second black image after the continuous shooting by causing said image sensor to accumulate electric charges while said image sensor is shielded from light by said shutter; and an image processing circuit that performs first noise reduction processing using the first black image for each of a plurality of exposure images obtained by the continuous shooting and performs second noise reduction processing using the second black image for an exposure image obtained by composing the plurality of exposure images by said controller.