DEVICES AND METHODS EMPLOYING DUAL TARGET AUTO EXPOSURE

Devices and methods employing dual target auto exposure. An imaging device is disclosed, and includes an illumination subsystem operative for projecting an illumination pattern; an aiming subsystem operative for projecting an aiming pattern; an imaging subsystem comprising an image sensor array and an imaging assembly used for focusing an image to the image sensor array; a housing comprising the illumination subsystem and the imaging subsystem. The device is configured to acquire a first plurality of images exposed in the illumination period of the illumination pattern based on a first control parameter, adjust the first control parameter for a subsequent image in the first plurality of images based on a previous image in the first plurality of images, acquire a second plurality of images exposed in the non-illumination period of the illumination pattern based on a second control parameter, adjust the first control parameter for a subsequent image in the second plurality of images based on a previous image in