LIDAR-based detection of traffic signs for navigation of autonomous vehicles

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United States of America Patent

PATENT NO 11727272
APP PUB NO 20200401823A1
SERIAL NO

16905334

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Abstract

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According to an aspect of an embodiment, operations may comprise receiving a point cloud representing a region. The operations may also comprise identifying a cluster of points in the point cloud having a higher intensity than points outside the cluster of points. The operations may also comprise determining a bounding box around the cluster of points. The operations may also comprise identifying a traffic sign within the bounding box. The operations may also comprise projecting the bounding box to coordinates of an image of the region captured by a camera. The operations may also comprise employing a deep learning model to classify a traffic sign type of the traffic sign in a portion of the image within the projected bounding box. The operations may also comprise storing information regarding the traffic sign and the traffic sign type in a high definition (HD) map of the region.

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Patent Owner(s)

Patent OwnerAddress
NVIDIA CORPORATION2788 SAN TOMAS EXPRESSWAY SANTA CLARA CA 95051

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miller, Derek Thomas Palo Alto, US 4 47
Yang, Lin San Carlos, US 940 7721
Zhang, Yu Sunnyvale, US 1629 7750

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