Dirk Haehnel

20140067187, Mar 6, 2014

Sep 5, 2012

13/603613

David Ian Ferguson - San Francisco CA, US
Dirk Haehnel - Menlo Park CA, US
Nathaniel Fairfield - Mountain View CA, US

GOOGLE INC. - Mountain View CA

G05D 1/00

701 28, 701 23

Methods and systems for detection of a construction zone using information from a plurality of sources are described. In an example, a computing device, configured to control the vehicle, may be configured to receive information, from a plurality of sources, relating to detection of a construction zone on the road on which the vehicle is travelling. Also, the computing device may be configured to determine a likelihood of existence of the construction zone on the road, based on the information. Further the computing device may be configured to modify a control strategy associated with a driving behavior of the vehicle, based on the likelihood; and control the vehicle based on the modified control strategy.

20150266471, Sep 24, 2015

May 21, 2015

14/718237

- Mountain View CA, US
Dirk Haehnel - Menlo Park CA, US

B60W 30/00
G01S 17/02

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.

20150266472, Sep 24, 2015

Feb 23, 2015

14/629344

- Mountain View CA, US
Dirk Haehnel - Menlo Park CA, US
Ian Mahon - Berkeley CA, US

B60W 30/08
G01S 17/93

Methods and systems for construction zone object detection are described. A computing device may be configured to receive, from a LIDAR, a 3D point cloud of a road on which a vehicle is travelling. The 3D point cloud may comprise points corresponding to light reflected from objects on the road. Also, the computing device may be configured to determine sets of points in the 3D point cloud representing an area within a threshold distance from a surface of the road. Further, the computing device may be configured to identify construction zone objects in the sets of points. Further, the computing device may be configured to determine a likelihood of existence of a construction zone, based on the identification. Based on the likelihood, the computing device may be configured to modify a control strategy of the vehicle; and control the vehicle based on the modified control strategy.