Devices and methods employing dual target auto exposure

摘要

The method includes automatically adjusting a first control parameter in a device for capturing a first plurality of images, automatically adjusting a second control parameter in the device for capturing a second plurality of images such that automatic adjustment of the first control parameter is interspersed with, separate from, and obtained generally concurrently with the automatic adjustment of the second control parameter. The adjustment of the first control parameter being determined differently compared to adjustment of the second control parameter. The method may include attempting to decode a decodable indicia utilizing one or more images of the first and second plurality of images.

主权项

1. A device for obtaining images comprising:
an imaging subsystem for capturing images, the imaging subsystem comprising an image sensor; wherein the device is configured for: acquiring a first plurality of images based on a first control parameter; adjusting the first control parameter for a first subsequent image of the first plurality of images based on a first prior image of the first plurality of images; acquiring a second plurality of images based on a second control parameter that is different from the first control parameter; and adjusting the second control parameter for a second subsequent image of the second plurality of images based on a second prior image of the second plurality of images; wherein:
the first plurality of images and the second plurality of images are evenly interspersed;the first control parameter for image N+2 is based on image N; andthe second control parameter for image N+3 is based on image N+1.