Image-based pedestrian detection
First Claim
1. A method for detecting pedestrians in images, comprising:
- identifying, by a computing system comprising one or more electronic devices, a pedestrian within an image obtained from a camera positioned relative to a vehicle;
determining, by the computing system, an estimated support location for the pedestrian within the image;
determining, by the computing system, a supplemental portion of data correlated with the pedestrian, the supplemental portion of data obtained from a sensor other than the camera;
determining, by the computing system, an estimated location of the pedestrian within three-dimensional space based at least in part on (i) the estimated support location for the pedestrian within the image, (ii) a known relative location of the camera to the vehicle, and (iii) the supplemental portion of data;
obtaining, by the computing system, map data descriptive of a geographic area surrounding the vehicle, the map data including relative locations of ground surfaces proximate to the vehicle;
determining, by the computing system, a revised estimated location of a pedestrian within three-dimensional space based at least in part on the estimated location and the map data; and
providing, by the computing system, at least a portion of the image corresponding to the pedestrian and the estimated location of the pedestrian within the three-dimensional space to an object classification application.
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Accused Products
Abstract
Object detection systems and methods can include identifying an object of interest within an image obtained from a camera, obtaining a first supplemental portion of data associated with the object of interest determining an estimated location of the object of interest within three-dimensional space based at least in part on the first supplemental portion of data and a known relative location of the camera, determining a portion of the LIDAR point data corresponding to the object of interest based at least in part on the estimated location of the object of interest within three-dimensional space, and providing one or more of at least a portion of the image corresponding to the object of interest and the portion of LIDAR point data corresponding to the object of interest as an output.
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Citations
20 Claims
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1. A method for detecting pedestrians in images, comprising:
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identifying, by a computing system comprising one or more electronic devices, a pedestrian within an image obtained from a camera positioned relative to a vehicle; determining, by the computing system, an estimated support location for the pedestrian within the image; determining, by the computing system, a supplemental portion of data correlated with the pedestrian, the supplemental portion of data obtained from a sensor other than the camera; determining, by the computing system, an estimated location of the pedestrian within three-dimensional space based at least in part on (i) the estimated support location for the pedestrian within the image, (ii) a known relative location of the camera to the vehicle, and (iii) the supplemental portion of data; obtaining, by the computing system, map data descriptive of a geographic area surrounding the vehicle, the map data including relative locations of ground surfaces proximate to the vehicle; determining, by the computing system, a revised estimated location of a pedestrian within three-dimensional space based at least in part on the estimated location and the map data; and providing, by the computing system, at least a portion of the image corresponding to the pedestrian and the estimated location of the pedestrian within the three-dimensional space to an object classification application. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A detection system, comprising:
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a camera positioned relative to a vehicle and configured to obtain images within an area proximate to the vehicle; a LIDAR sensor positioned relative to a vehicle and configured to obtain LIDAR point data within an area proximate to the vehicle; one or more electronic devices coupled to the camera and the LIDAR sensor, the one or more electronic devices configured to receive image data from the camera and LIDAR point data from the LIDAR sensor and perform operations comprising; identifying an object of interest within an image obtained from the camera; determining an estimated location of the object of interest within three-dimensional space based at least in part on a known relative location of the camera; obtaining map data descriptive of a geographic area surrounding the vehicle; and determining a revised estimated location of an object of interest within three-dimensional space based at least in part on the estimated location and the map data; determining a portion of the LIDAR point data corresponding to the object of interest based at least in part on the estimated location of the object of interest within three-dimensional space; and providing one or more of at least a portion of the image corresponding to the object of interest and the portion of the LIDAR point data corresponding to the object of interest as an output. - View Dependent Claims (12, 13, 14, 15)
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16. An autonomous vehicle, comprising:
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one or more cameras configured to obtain images within an environment proximate to an autonomous vehicle; a field programmable gate array (FPGA) device coupled to the one or more cameras, the FPGA device configured to receive an image from the one or more cameras, generate a multi-scale image pyramid of multiple image samples having different scaling factors, and analyze successive image patches within each of the multiple image samples using a sliding window of fixed size to identify objects of interest within the successive image patches; one or more processors; and one or more non-transitory computer-readable media that collectively store instructions that, when executed by the one or more processors, cause the one or more processors to perform operations, the operations comprising; determining a supplemental portion of data correlated with each object of interest, each supplemental portion of data obtained from a sensor other than the one or more cameras, each supplemental portion of data comprising map data descriptive of a geographic area surrounding the autonomous vehicle and including relative locations of ground surfaces proximate to the autonomous vehicle; and providing at least a portion of the image corresponding to each object of interest and the supplemental portion of data associated with each object of interest to an object classification application. - View Dependent Claims (17, 18, 19, 20)
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Specification