DISPLACEMENT DETECTION APPARATUS AND METHOD
First Claim
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1. A displacement detection method, comprising the steps of:
- capturing a first image and a second image, and obtaining a displacement variation according to the first and the second images;
comparing the displacement variation with at least one threshold value; and
adaptively adjusting a displacement sensitivity outputted from a displacement detection apparatus according to a comparison result of comparing the displacement variation with the threshold value.
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Abstract
A displacement detection method includes the steps of: capturing a first image and a second image, and obtaining a displacement variation according to the first and the second images; comparing the displacement variation with at least one threshold value; and adaptively adjusting a displacement sensitivity outputted from a displacement detection apparatus according a comparison result of comparing the displacement variation with the threshold value. The present invention further provides a displacement detection apparatus.
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Citations
16 Claims
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1. A displacement detection method, comprising the steps of:
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capturing a first image and a second image, and obtaining a displacement variation according to the first and the second images; comparing the displacement variation with at least one threshold value; and adaptively adjusting a displacement sensitivity outputted from a displacement detection apparatus according to a comparison result of comparing the displacement variation with the threshold value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A displacement detection method for adaptively adjusting a displacement sensitivity outputted from a displacement detection apparatus, comprising the steps of:
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providing a lookup table representing the relationship between a plurality of threshold values and the displacement sensitivity to be outputted from the displacement detection apparatus; capturing a first image and a second image, and obtaining a displacement variation according to the first and the second images; and comparing the displacement variation with the lookup table to adaptively adjust the displacement sensitivity outputted from the displacement detection apparatus. - View Dependent Claims (8, 9)
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10. A displacement detection apparatus, comprising:
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an image capturing unit for capturing a first image and a second image and for obtaining a displacement variation according to the first and the second images; a storage unit storing at least one threshold value; a sensitivity control unit for adjusting a displacement sensitivity outputted from the displacement detection apparatus; and a processing unit for comparing the displacement variation with the threshold value and for adaptively controlling the sensitivity control unit to adjust the displacement sensitivity outputted from the displacement detection apparatus according to a comparison result of comparing the displacement variation with the threshold value. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification