Method and device for detecting position of mobile object, and computer product
First Claim
1. A position detecting device comprising:
- a travel speed detecting unit that detects a travel speed of a mobile object moving on an arbitrary route;
an optical flow calculating unit that calculates an optical flow of one side of the mobile object, based on a series of frame images of the one side, wherein the one side is any one of a left side and a right side of the mobile object;
a distance calculating unit that calculates a distance to a subject on the one side based on the travel speed and the optical flow; and
a position detecting unit that detects a current position of the mobile object based on point data of the subject and the distance to the subject.
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Abstract
The position detecting device includes a travel speed detecting unit, an optical flow calculating unit, a distance calculating unit, and a position detecting unit. The travel speed detecting unit detects a travel speed of a mobile object moving on an arbitrary route. The optical flow calculating unit calculates an optical flow of one side of the mobile object, based on a series of frame images of the one side. The one side is any one of a left side and a right side of the mobile object. The distance calculating unit calculates a distance to a subject on the one side based on the travel speed and the optical flow. The position detecting unit detects a current position of the mobile object based on point data of the subject and the distance to the subject.
10 Citations
10 Claims
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1. A position detecting device comprising:
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a travel speed detecting unit that detects a travel speed of a mobile object moving on an arbitrary route;
an optical flow calculating unit that calculates an optical flow of one side of the mobile object, based on a series of frame images of the one side, wherein the one side is any one of a left side and a right side of the mobile object;
a distance calculating unit that calculates a distance to a subject on the one side based on the travel speed and the optical flow; and
a position detecting unit that detects a current position of the mobile object based on point data of the subject and the distance to the subject. - View Dependent Claims (2, 3, 4)
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5. A position detecting method comprising:
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travel-speed-detecting a travel speed of a mobile object moving on an arbitrary route;
optical-flow-calculating an optical flow of one side of the mobile object, based on a series of frame images of the one side, wherein the one side is any one of a left side and a right side of the mobile object;
distance-calculating a distance to a subject on the one side based on the travel speed and the optical flow; and
position-detecting a current position of the mobile object based on point data of the subject and the distance to the subject. - View Dependent Claims (6, 7)
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8. A computer-readable recording medium that stores therein a computer program for detecting a position, the computer program causing a computer to execute:
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travel-speed-detecting a travel speed of a mobile object moving on an arbitrary route;
optical-flow-calculating an optical flow of one side of the mobile object, based on a series of frame images of the one side, wherein the one side is any one of a left side and a right side of the mobile object;
distance-calculating a distance to a subject on the one side based on the travel speed and the optical flow; and
position-detecting a current position of the mobile object based on point data of the subject and the distance to the subject. - View Dependent Claims (9, 10)
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Specification