Invention Grant
- Patent Title: High speed structured light system
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Application No.: US16422693Application Date: 2019-05-24
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Publication No.: US10803622B2Publication Date: 2020-10-13
- Inventor: Aaron Wallack , John Filhaber , George Costigan
- Applicant: Cognex Corporation
- Applicant Address: US MA Natick
- Assignee: Cognex Corporation
- Current Assignee: Cognex Corporation
- Current Assignee Address: US MA Natick
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/80 ; G06T7/521 ; G01B11/25 ; H04N9/00

Abstract:
The present disclosure provides a high resolution structured light system that is also capable of maintaining high throughput. The high resolution structured light system includes one or more image capture devices, such as a camera and/or an image sensor, a projector, and a blurring element. The projector is configured to project a binary pattern so that the projector can operate at high throughput. The binary projection pattern is subsequently filtered by the blurring element to remove high frequency components of the binary projection pattern. This filtering smoothes out sharp edges of the binary projection pattern, thereby creating a blurred projection pattern that changes gradually from the low value to the high value. This gradual change can be used by the structured light system to resolve spatial changes in the 3D profile that could not otherwise be resolved using a binary pattern.
Public/Granted literature
- US20200020130A1 HIGH SPEED STRUCTURED LIGHT SYSTEM Public/Granted day:2020-01-16
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