IMAGE BASED DETECTING SYSTEM AND METHOD FOR TRAFFIC PARAMETERS AND COMPUTER PROGRAM PRODUCT THEREOF
First Claim
1. An image-based detecting system for traffic parameters, comprising:
- a vehicle lane region of interest (ROI) setting module for setting a monitored range on a vehicle lane, and setting an entry detection window and an exit detection window on said vehicle lane;
a vehicle passing event detection module for detecting whether a vehicle passing event having occurred by using image information captured at said entry detection window;
a feature point detection and tracking module for detecting a plurality of feature points detection within said entry detection window when a vehicle passing event being detected, and for tracking said plurality of detected feature points by time;
a feature point grouping module for grouping a plurality of feature points to obtain a location tracking result of a single vehicle; and
a traffic parameter estimation module, when a tracked single vehicle moving to said exit detection window, said traffic parameter estimation module estimating at least a traffic parameter according to said location tracking result of said single vehicle and by estimating temporal correlation of information captured in said entry and said exit detection windows.
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Abstract
An image-based detecting system for traffic parameters first sets a range of a vehicle lane for monitoring control, and sets an entry detection window and an exit detection window in the vehicle lane. When the entry detection window detects an event of a vehicle passing by using the image information captured at the entry detection window, a plurality of feature points are detected in the entry detection window, and will be tracked hereafter. Then, the feature points belonging to the same vehicle are grouped to obtain at least a location tracking result of single vehicle. When the tracked single vehicle moves to the exit detection window, according to the location tracking result and the time correlation through estimating the information captured at the entry detection window and the exit detection window, at least a traffic parameter is estimated.
55 Citations
19 Claims
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1. An image-based detecting system for traffic parameters, comprising:
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a vehicle lane region of interest (ROI) setting module for setting a monitored range on a vehicle lane, and setting an entry detection window and an exit detection window on said vehicle lane; a vehicle passing event detection module for detecting whether a vehicle passing event having occurred by using image information captured at said entry detection window; a feature point detection and tracking module for detecting a plurality of feature points detection within said entry detection window when a vehicle passing event being detected, and for tracking said plurality of detected feature points by time; a feature point grouping module for grouping a plurality of feature points to obtain a location tracking result of a single vehicle; and a traffic parameter estimation module, when a tracked single vehicle moving to said exit detection window, said traffic parameter estimation module estimating at least a traffic parameter according to said location tracking result of said single vehicle and by estimating temporal correlation of information captured in said entry and said exit detection windows. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An image-based detecting method for traffic parameters, applicable to a traffic parameter detecting system, said method comprising:
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setting a monitored range on a vehicle lane, and setting an entry detection window and an exit detection window in said vehicle lane; detecting whether an event of a vehicle passing occurs by using image information captured at said entry detection window, and when said event of a vehicle passing being detected at said entry detection window, a plurality of feature points being detected in said entry detection window, and said plurality of feature points being tracked hereafter; grouping said feature points belonging to a same vehicle to obtain at least a location tracking result of a single vehicle; and estimating at least a traffic parameter when said tracked single vehicle moving to said exit detection window, according to said location tracking result and temporal correlation through estimating information captured at said entry detection window and said exit detection window. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A computer program product of image-based detecting for traffic parameters, said computer program product comprising a memory and an executable computer program stored at said memory, said executable computer program being executed by a processor to perform:
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setting a range on a vehicle lane to be monitored, and setting an entry detection window and an exit detection window in said vehicle lane; detecting whether an event of a vehicle passing occurs by using image information captured at said entry detection window, and when said event of a vehicle passing being detected at said entry detection window, a plurality of feature points being detected in said entry detection window, and said plurality of feature points being tracked hereafter; grouping said feature points belonging to a same vehicle to obtain at least a location tracking result of a single vehicle; and estimating at least a traffic parameter when said tracked single vehicle moving to said exit detection window, according to said location tracking result and temporal correlation through estimating information captured at said entry detection window and said exit detection window. - View Dependent Claims (19)
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Specification