Patent ID: 7995131
Filing Date: 2011-08-09
Classification: G03B

Abstract:
1. An imaging device, comprising: a capturing module for capturing an image from a scene, the capturing module including at least one lens; a driving module capable of driving the at least one lens to different focusing positions using different driving steps; a flat-scene judging module capable of dividing the image into a central area and a plurality of peripheral areas, and determining whether the captured scene is a flat scene according to the divided image; and a step-judging module capable of determining whether the number of the driving steps corresponding to a maximum focusing value of the central area of the image is same as the number of driving steps corresponding to respective maximum focusing values of the peripheral areas of image, if the number of driving steps corresponding to the maximum focusing value of the central area is not same as the number of the driving steps corresponding to respective maximum focusing values of the plurality of peripheral areas, and changing the driving steps corresponding to the maximum focusing value of the central area to the driving steps corresponding to the greatest one of the maximum focusing values of the peripheral areas.