Object matching method and camera system with an object matching function
First Claim
1. An object matching method of matching an object staying inside an overlapped monitoring region between adjacent monitoring regions captured by two image capturing units, the two image capturing units respectively having a first coordinate system and a second coordinate system, the object matching method being applied to a camera system having an operation processor electrically connected with the two image capturing units, the object matching method comprising:
- the operation processor detecting at least one moving object located inside the overlapped monitoring region to generate a first coordinate point upon the first coordinate system and a second coordinate point upon the second coordinate system;
the operation processor computing a plurality of transforming parameters of the first coordinate system relative to the second coordinate system;
the operation processor setting some of the plurality of transforming parameters having similar parameter values as being selfsame according to a comparison result between the transforming parameters and a threshold;
the operation processor defining an amount of the said selfsame transforming parameters as a reliability level;
the operation processor determining a final transform parameter by the reliability level;
the operation processor utilizing the final transform parameter to transform the first coordinate point into a third coordinate point upon the second coordinate system; and
the operation processor determining whether the first coordinate point and the second coordinate point are considered as the same moving object when a difference between the third coordinate point and the second coordinate point is smaller than a specific value.
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Abstract
An object matching method is applied to a camera system with an object matching function. The object matching method includes detecting a moving object within overlapped monitoring areas of two image capturing units to generate a first coordinate point and a second coordinate point respectively upon a first coordinate system and a second coordinate system, calculating at least one transforming parameter of the first coordinate system relative to the second coordinate system, acquiring a reliability level according to a comparison result between the transforming parameter and a threshold, determining a final transform parameter by the reliability level, utilizing the final transform parameter to transform the first coordinate point into a third coordinate point upon the second coordinate system, and determining whether the first coordinate point and the second coordinate point indicate the same object by difference between the third coordinate point and the second coordinate point.
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Citations
18 Claims
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1. An object matching method of matching an object staying inside an overlapped monitoring region between adjacent monitoring regions captured by two image capturing units, the two image capturing units respectively having a first coordinate system and a second coordinate system, the object matching method being applied to a camera system having an operation processor electrically connected with the two image capturing units, the object matching method comprising:
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the operation processor detecting at least one moving object located inside the overlapped monitoring region to generate a first coordinate point upon the first coordinate system and a second coordinate point upon the second coordinate system; the operation processor computing a plurality of transforming parameters of the first coordinate system relative to the second coordinate system; the operation processor setting some of the plurality of transforming parameters having similar parameter values as being selfsame according to a comparison result between the transforming parameters and a threshold; the operation processor defining an amount of the said selfsame transforming parameters as a reliability level; the operation processor determining a final transform parameter by the reliability level; the operation processor utilizing the final transform parameter to transform the first coordinate point into a third coordinate point upon the second coordinate system; and the operation processor determining whether the first coordinate point and the second coordinate point are considered as the same moving object when a difference between the third coordinate point and the second coordinate point is smaller than a specific value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A camera system with an object matching function, having an operation processor and two image capturing units electrically connected with each other, an overlapped monitoring region being set between two adjacent monitoring regions captured by the two image capturing units, the two image capturing units respectively having a first coordinate system and a second coordinate system, the operation processor being adapted to detect at least one moving object located inside the overlapped monitoring region to generate a first coordinate point upon the first coordinate system and a second coordinate point upon the second coordinate system, to computing a plurality of transforming parameters of the first coordinate system relative to the second coordinate system, to set some of the plurality of transforming parameters having similar parameter values as being selfsame according to a comparison result between the transforming parameters and a threshold, to define an amount of the said selfsame transforming parameters as a reliability level, to determine a final transform parameter by the reliability level, to utilize the final transform parameter to transform the first coordinate point into a third coordinate point upon the second coordinate system, and to determine whether the first coordinate point and the second coordinate point are considered as the same moving object when a difference between the third coordinate point and the second coordinate point is smaller than a specific value, for matching the same moving object staying inside the overlapped monitoring region.
Specification