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 0:
1. 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, wherein each polarizer of the first polarizer array is mounted to a predetermined region of the first portion of the imaging surface area; 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.