Negative image for sign placement detection
First Claim
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1. A method comprising:
- receiving sensor data optically collected along a path by a collection device;
identifying one or more false positive locations for one or more signs associated with the path;
identifying a potential position from the sensor data;
comparing the potential position to the one or more false positive locations; and
analyzing the sensor data based on the one or more false positive locations to identify the potential position as a confirmed position in response to a distance between the potential position and at least one of the one or more false positive locations exceeding a threshold distance.
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Abstract
Systems, methods, and apparatuses are described for a negative image or false positive profile for sign locations. Image data or another type of optical data is collected along a path by a collection device such as a camera. The data is analyzed to identify one or more false positive locations along the path at which signs for other paths may be detected. The false positive locations may be described in the negative image or false positive profile. Additional or subsequent optical data may be analyzed based on the negative image or false positive profile may be analyzed to identify at least one confirmed sign position.
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Citations
20 Claims
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1. A method comprising:
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receiving sensor data optically collected along a path by a collection device; identifying one or more false positive locations for one or more signs associated with the path; identifying a potential position from the sensor data; comparing the potential position to the one or more false positive locations; and analyzing the sensor data based on the one or more false positive locations to identify the potential position as a confirmed position in response to a distance between the potential position and at least one of the one or more false positive locations exceeding a threshold distance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving sensor data optically collected along a path by an autonomous vehicle; identifying one or more false positive locations for one or more signs associated with the path; identifying a potential position from the sensor data; comparing the potential position to the one or more false positive locations; analyzing the sensor data based on the one or more false positive locations to confirm the potential position as a confirmed position; and generating a command for the autonomous vehicle in response to the confirmed position. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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identifying a path; identifying a potential position from sensor data optically collected along the path by a collection device; performing a comparison of the potential position to a threshold value with respect to the path; identifying the potential position as a false positive location for a sign based on the comparison; and storing data indicative of the false positive location in a geographic database. - View Dependent Claims (17, 18, 19, 20)
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Specification