Patent ID: 11881039
Assignee: AXON ENTERPRISE, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC B  G  H

Claim 17:
18. A tangible non-transitory computer-readable medium storing executable instructions that, when executed by a processor of a license plate recognition (“LPR”) system, cause the LPR system to: receive, from a memory of the LPR system, a first long-exposure image of a field of view, wherein the first long-exposure image is captured, using an image sensor, with a long-exposure setting of a camera device of the LPR system; receive, from a memory of the LPR system, a first short-exposure image of the same field of view, wherein the first short-exposure image is captured, using the image sensor, with a short-exposure setting of the camera device; detect a license plate in the first long-exposure image, wherein the license plate is in a first portion of the field of view; detect the license plate in the first short-exposure image, wherein the license plate is in the first portion of the field of view, wherein characters of the license plate have a greater probability of being recognized by a computerized optical character recognition platform in the first long-exposure image than in the first short-exposure image; instruct, a controller communicatively coupled to the processor and camera device, to adjust the long-exposure setting of the camera device by a first amount and to adjust the short-exposure setting of the camera device by a second amount, wherein the long-exposure setting and short-exposure setting comprise at least one of a shutter speed setting, ISO setting, zoom setting, and exposure setting of the camera device; capture, using the image sensor, a second long-exposure image with the adjusted long-exposure setting and a second short-exposure image with the adjusted short-exposure setting; detect the license plate in the second long-exposure image and the second short-exposure image; align the license plate in the first long-exposure image with the license plate in the second long-exposure image; transform the first portion of each of the first long-exposure image and the second long-exposure image by geometrically rectifying to accommodate for relative positions of the license plate; and merge at least the first long-exposure image and the second long-exposure image into a consolidated image, wherein characters of the license plate have a greater probability of being recognized by the computerized optical character recognition platform in the consolidated image than the first short-exposure image, the second short-exposure image, the first long-exposure image, or the second long-exposure image.