METHOD OF MOTION DETECTION USING ADAPTIVE THRESHOLD
First Claim
1. A method of motion detection using an adaptive threshold, adaptive for determining whether a plurality of target pixels are moving pixels or not, the method comprising:
- giving a first threshold for determining whether the target pixels in a current scan line are moving pixels;
calculating a number of moving pixels in a previous scan line of the current scan line;
determining whether the number of moving pixels is larger than a second threshold;
if the number of moving pixels is larger than the second threshold, adjusting the first threshold by a decrement; and
determining whether the target pixels in the current scan line are moving pixels by using the adjusted first threshold.
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Abstract
A method of motion detection using an adaptive threshold, adaptive for determining whether a plurality of target pixels in a current scan line are moving pixels or not, is provided. First, a first threshold is given for determining whether the target pixels in the current scan line are moving pixels. Then, a number of moving pixels in a previous scan line of the current scan line is calculated and determined whether larger than a second threshold. If the number of moving pixels is larger than the second threshold, the first threshold is adjusted by a decrement, and then whether the target pixels in the current scan line are moving pixels is determined by using the adjusted first threshold.
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Citations
8 Claims
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1. A method of motion detection using an adaptive threshold, adaptive for determining whether a plurality of target pixels are moving pixels or not, the method comprising:
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giving a first threshold for determining whether the target pixels in a current scan line are moving pixels; calculating a number of moving pixels in a previous scan line of the current scan line; determining whether the number of moving pixels is larger than a second threshold; if the number of moving pixels is larger than the second threshold, adjusting the first threshold by a decrement; and determining whether the target pixels in the current scan line are moving pixels by using the adjusted first threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification