- Patent Title: Construction zone sign detection using light detection and ranging
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Application No.: US14718237Application Date: 2015-05-21
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Publication No.: US09193355B2Publication Date: 2015-11-24
- Inventor: David Ian Ferguson , Dirk Haehnel
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: G05D1/00
- IPC: G05D1/00 ; G05D1/02 ; G08G1/16 ; B60W30/09 ; G01S17/93 ; G06K9/00 ; B25J9/16 ; B25J19/00 ; B60W30/00 ; G01S17/02 ; B60W30/095

Abstract:
Methods and systems for construction zone sign detection are described. A computing device may be configured to receive a 3D point cloud of a vicinity of a road on which a vehicle is travelling. The 3D point cloud may include points corresponding to light reflected from objects in the vicinity of the road. The computing device may be configured to determine a set of points representing an area at a given height from a surface of the road, and estimate a shape associated with the set of points. Further, the computing device may be configured to determine a likelihood that the set of points represents a construction zone sign, based on the estimated shape. Based on the likelihood, the computing device may be configured to modify a control strategy associated with a driving behavior of the vehicle; and control the vehicle based on the modified control strategy.
Public/Granted literature
- US20150266471A1 Construction Zone Sign Detection Using Light Detection and Ranging Public/Granted day:2015-09-24
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