Motion detecting method and apparatus
First Claim
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1. A method for detecting motion of an object comprising the steps of:
- generating a repetitive video signal representative of the object at successive points in time;
integrating at least a portion of successive repetitions of the video signal;
comparing the successive integrations with each other; and
changing the integrated portion of the video signal in order to optimize motion detection for the size and extent of motion of the object.
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Abstract
To detect motion of an object, a repetitive video signal representative of the object at successive points in time is generated. At least a portion of successive repetitions of the video signal is integrated. The successive integrations are compared with each other. The integrated portion is preferably selected to optimize motion detection for the size and extent of movement of the object.
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Citations
10 Claims
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1. A method for detecting motion of an object comprising the steps of:
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generating a repetitive video signal representative of the object at successive points in time; integrating at least a portion of successive repetitions of the video signal; comparing the successive integrations with each other; and changing the integrated portion of the video signal in order to optimize motion detection for the size and extent of motion of the object. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for detecting motion of an object represented by a video signal composed of a plurality of lines forming frames at successive points in time, the apparatus comprising:
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means for integrating a portion of each line of the video signal during a first integrating period to form a line integration signal; means for storing the value of the line integration signal at the end of each first integrating period to form a line summation signal; means for integrating the line summation signal during a second integrating period equal to a plurality of lines of each frame of the video signal to form a frame integration signal; means for storing the value of the frame integration signal at the end of each second integrating period to form a frame summation signal; and means for adjusting the duration and phase of the first integrating period. - View Dependent Claims (7, 8, 9, 10)
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Specification