Real-time object tracking system
First Claim
1. A method of tracking a target, comprising the steps of:
- inputting a sequence of images of a scene;
selecting a target in the scene;
computing the center of the target in an initial one of the images using one or more visual characteristics of the target region;
computing the center of the target in a subsequent one of the images using the visual characteristics; and
comparing the center of the target in the subsequent image to the center of the target in the initial image to determine movement of the target within the scene.
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Accused Products
Abstract
A real-time computer vision system tracks one or more objects moving in a scene using a target location technique which does not involve searching. The imaging hardware includes a color camera, frame grabber, and processor. The software consists of the low-level image grabbing software and a tracking algorithm. The system tracks objects based on the color, motion and/or shape of the object in the image. A color matching function is used to compute three measures of the target'"'"'s probable location based on the target color, shape and motion. The method then computes the most probable location of the target using a weighting technique. Once the system is running, a graphical user interface displays the live image from the color camera on the computer screen. The operator can then use the mouse to select a target for tracking. The system will then keep track of the moving target in the scene in real-time.
40 Citations
14 Claims
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1. A method of tracking a target, comprising the steps of:
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inputting a sequence of images of a scene;
selecting a target in the scene;
computing the center of the target in an initial one of the images using one or more visual characteristics of the target region;
computing the center of the target in a subsequent one of the images using the visual characteristics; and
comparing the center of the target in the subsequent image to the center of the target in the initial image to determine movement of the target within the scene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification