Invention Grant
- Patent Title: Generating maps without shadows
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Application No.: US15927806Application Date: 2018-03-21
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Publication No.: US10699477B2Publication Date: 2020-06-30
- Inventor: Jesse Sol Levinson , Ashutosh Gajanan Rege , Brice Rebsamen , Elena Stumm , Nitesh Shroff , Derek Adams
- Applicant: Zoox, Inc.
- Applicant Address: US CA Foster City
- Assignee: Zoox, Inc.
- Current Assignee: Zoox, Inc.
- Current Assignee Address: US CA Foster City
- Agency: Lee & Hayes, P.C.
- Main IPC: G06T17/05
- IPC: G06T17/05 ; G06T17/20 ; G06T15/60 ; G05D1/02 ; G05D1/00 ; G01S17/89 ; G06N20/00

Abstract:
Techniques for generating maps without shadows are discussed herein. A plurality of images can be captured by a vehicle traversing an environment representing various perspectives and/or lighting conditions in the environment. A shadow within an image can be identified by a machine learning algorithm trained to detect shadows in images and/or by projecting the image onto a three-dimensional (3D) map of the environment and identifying candidate shadow regions based on the geometry of the 3D map and the location of the light source. Shadows can be removed or minimized by utilizing blending or duplicating techniques. Color information and reflectance information can be added to the 3D map to generate a textured 3D map. A textured 3D map without shadows can be used to simulate the environment under different lighting conditions.
Public/Granted literature
- US20190295318A1 GENERATING MAPS WITHOUT SHADOWS Public/Granted day:2019-09-26
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