Vehicle-monitoring device and method using optical flow
First Claim
1. A vehicle-monitoring device using an optical flow, the vehicle-monitoring device comprising:
- a video pre-processor for pre-processing video data input through a camera;
an optical flow detector for detecting an optical flow from the video data and separating a background optical flow area from the detected optical flow; and
a vehicle detector for matching a remaining optical flow area;
except for the background optical flow area, to templates to determine whether the remaining optical flow area is an area of a target vehicle.
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Abstract
Provided is a vehicle detection/tracking device that allows vehicle detection and then tracking using a camera focusing around a camera-mounted vehicle. To this end, an optical flow is acquired from video data input through a camera mounted in a vehicle during driving of the vehicle. A background optical flow, an optical flow generated by driving the vehicle, is acquired. The acquired optical flow and the acquired background optical flow are compared, and a vehicle candidate area is detected through an optical flow for an object around the vehicle. In particular, template matching is performed on the vehicle candidate area for vehicle detection and a detected vehicle can be tracked by continuously comparing the detected optical flow and the background optical flow.
36 Citations
18 Claims
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1. A vehicle-monitoring device using an optical flow, the vehicle-monitoring device comprising:
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a video pre-processor for pre-processing video data input through a camera;
an optical flow detector for detecting an optical flow from the video data and separating a background optical flow area from the detected optical flow; and
a vehicle detector for matching a remaining optical flow area;
except for the background optical flow area, to templates to determine whether the remaining optical flow area is an area of a target vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle-monitoring method using an optical flow, the vehicle-monitoring method comprising the steps of:
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pre-processing video data;
detecting an optical flow from the video data and separating a background optical flow from the detected optical flow;
matching a remaining optical flow area, except for the background optical flow area, to templates; and
detecting information on a target vehicle if the remaining optical flow area is an area having motion of the target vehicle; and
,detecting the target vehicle. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification