Patent ID: 9007485
Filing Date: 2015-04-14
Classification: G03B,H04N

Abstract:
1. A method to implement an automatic exposure mechanism, the method comprising: determining whether an image data is collected indoors or outdoors, wherein the image data is collected by an image sensor of a device; setting a current position of a metering area to a predetermined position on an image plane of the image sensor, wherein the metering area is used by an automatic exposure mechanism of the device to set an exposure time to collect the image data based on one or more meter values in the metering area; determining a downward pointing gravity vector based on an orientation data from an orientation detector of the device, wherein the orientation data indicates an orientation of the device relative to the downward pointing gravity vector; projecting the downward pointing gravity vector onto the image plane of the image sensor; calculating a target position for the metering area on the image plane of the image sensor, wherein the target position is in a direction of the projected downward pointing gravity vector; and moving, in response to determining the image data is collected outdoors, the current position of the metering area on the image plane of the image sensor from the predetermined position toward the calculated target position in the direction of the projected downward pointing gravity vector.