Patent ID: 11874539
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC B  G  H

Claim 12:
13. A perception system for a motor vehicle having a camera, the perception system comprising: a lens having a field of view (FOV), arranged in the camera, and configured to focus incident light from the FOV, wherein the FOV includes a road having a road surface; an imaging sensor arranged in the camera and having a photosensitive surface defined by an imaging surface area configured to capture the incident light focused from the FOV, including a first portion of the imaging surface area configured to capture an image of the road; and a first polarizer array having a plurality of fixed orientation polarizers arranged across the first portion of the imaging surface area and configured to reduce glare from the road surface; a second polarizer array having a plurality of fixed orientation polarizers; and an electronically controlled liquid crystal (LC) array arranged between the first polarizer array and the second polarizer array and configured to introduce a selected phase change to the incident light focused from the FOV and passed through the LC array to further reduce glare from the road surface.