Parked vehicle detection based on edge detection
First Claim
Patent Images
1. A method for detecting parked vehicles, comprising the steps of:
- capturing an image of a plurality of parking spaces, the boundary of each parking space comprising an exposed edge, wherein said exposed edge is not occluded by any parked vehicles;
detecting edges within a region of interest (ROI) associated with each parking space, wherein a substantial portion of said ROI is formed by scanning at least a portion of said exposed edge upward;
selecting primary detected edges from detected edges for each parking space, wherein said primary detected edges are substantially parallel to the exposed edge of each parking space;
determining the parking state of each parking space, wherein a parking space is detected as occupied if the primary detected edges for said parking space satisfy a first pre-determined condition.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention discloses a method for detecting parked vehicles based on edge detection. For each parking space, its boundary comprises an exposed edge, which is not occluded by any parked vehicle. Its primary detected edges are the detected edges that are substantially parallel to the exposed edge. A parking space is detected as occupied if its primary detected edges satisfy at least one of these conditions: (1) their total number is more than a pre-determined minimum number; and/or, (2) their total length is more than a pre-determined minimum length.
47 Citations
20 Claims
-
1. A method for detecting parked vehicles, comprising the steps of:
-
capturing an image of a plurality of parking spaces, the boundary of each parking space comprising an exposed edge, wherein said exposed edge is not occluded by any parked vehicles; detecting edges within a region of interest (ROI) associated with each parking space, wherein a substantial portion of said ROI is formed by scanning at least a portion of said exposed edge upward; selecting primary detected edges from detected edges for each parking space, wherein said primary detected edges are substantially parallel to the exposed edge of each parking space; determining the parking state of each parking space, wherein a parking space is detected as occupied if the primary detected edges for said parking space satisfy a first pre-determined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for detecting parked vehicles, comprising the steps of:
-
capturing an image of a plurality of parking spaces, the boundary of each parking space comprising an exposed edge and a secondary edge, wherein said exposed edge is not occluded by any parked vehicles, and said secondary edge is not parallel to said exposed edge; detecting edges within a region of interest (ROI) associated with each parking space, wherein a substantial portion of said ROI is formed by scanning at least a portion of said exposed edge upward; selecting secondary detected edges from detected edges for each parking space, wherein said secondary detected edges are substantially parallel to the secondary edge of each parking space; determining the parking state of each parking space, wherein a parking spaces is detected as vacant if the secondary detected edges for said parking space satisfy a second pre-determined condition. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification