AUTOMATIC TRACKING APPARATUS AND AUTOMATIC TRACKING METHOD
First Claim
1. An automatic tracking apparatus for tracking a moving object, comprising:
- a first object detector that detects the object from an image photographed by a camera which is provided with a zooming mechanism and photographs at a predetermined image angle;
a first zooming controller that changes zooming magnification of the camera in such a case that a dimension of the detected object does not satisfy a predetermined condition on the image;
a second object detector that detects the object from an image again photographed by the camera after the zooming magnification is changed;
a tracking unit that compares the object detected by the second object detecting means with the image photographed by the camera so as to specify a position of the object and to track the object on the image; and
a second zooming controller that controls the zooming magnification of the camera in such a manner that a dimension of the object to be tracked becomes a predetermined dimension on an image which is photographed by the camera.
9 Assignments
0 Petitions
Accused Products
Abstract
An automatic tracking apparatus is provided, which is capable of solving a failure occurred in an automatic tracking operation in connection with a zooming operation, and capable of tracking an object in a stable manner, while a zooming-up operation, or a zooming-down operation is carried out in a high speed.
The automatic tracking apparatus is equipped with: a first object detecting unit 52 for detecting an object from an image photographed by a camera and inputted; a first zooming control unit 53 for changing zooming magnification of the camera in such a case that a dimension of the detected object is smaller than a predetermined dimension on the image; a second object detecting unit 55 for detecting the object from an image again photographed by the camera after the zooming magnification has been changed; a template matching unit 56 for comparing the object detected by the second object detecting unit with the image photographed by the camera so as to specify a position of the object and to track the object on the image; and a second zooming control unit 57 for controlling the zooming magnification of the camera in such a manner that a dimension of the object to be tracked becomes a predetermined dimension on an image which is photographed by the camera.
40 Citations
9 Claims
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1. An automatic tracking apparatus for tracking a moving object, comprising:
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a first object detector that detects the object from an image photographed by a camera which is provided with a zooming mechanism and photographs at a predetermined image angle; a first zooming controller that changes zooming magnification of the camera in such a case that a dimension of the detected object does not satisfy a predetermined condition on the image; a second object detector that detects the object from an image again photographed by the camera after the zooming magnification is changed; a tracking unit that compares the object detected by the second object detecting means with the image photographed by the camera so as to specify a position of the object and to track the object on the image; and a second zooming controller that controls the zooming magnification of the camera in such a manner that a dimension of the object to be tracked becomes a predetermined dimension on an image which is photographed by the camera. - View Dependent Claims (2, 3, 4, 5, 9)
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6. An automatic tracking apparatus for tracking a moving object, comprising:
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a camera having a zooming mechanism, for photographing at a predetermined image angle; a first object detector that detects the object from an image photographed by the camera; a first zooming controller that changes zooming magnification of the camera in such a case that a dimension of the detected object does not satisfy a predetermined condition on the image; a second object detector that detects the object from an image again photographed by the camera after the zooming magnification is changed; a tracking unit that compares the object detected by the second object detector with the image photographed by the camera so as to specify a position of the object and to track the object on the image; and a second zooming controller that controls the zooming magnification of the camera in such a manner that a dimension of the object to be tracked becomes a predetermined dimension on an image which is photographed by the camera.
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7. An automatic tracking method for tracking a moving object comprising:
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detecting the object from an image photographed by a camera which is equipped with a zooming mechanism and photographs at a predetermined image angle; changing zooming magnification of the camera in such a case that a dimension of the detected object does not satisfy a predetermined condition on the image; detecting the object from an image again photographed by the camera after the zooming magnification is changed; comparing the object detected by the second object detecting step with the image photographed by the camera so as to specify a position of the object and to track the object on the image; and controlling the zooming magnification of the camera in such a manner that a dimension of the object to be tracked becomes a predetermined dimension on an image which is photographed by the camera. - View Dependent Claims (8)
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Specification