Detection of a rolling motion or sliding motion of a body part on a surface
First Claim
Patent Images
1. A method comprising:
- scanning a first portion of a print of a body part in a first area of an optical surface;
detecting whether a motion of the body part to a second area of the optical surface is a continuous rolling motion or a continuous sliding motion;
wherein detecting a continuous sliding motion of the body part on the optical surface comprises determining if the first portion of the print of the body part in the first area of the optical surface is consistent with a scanned portion of the print of the body part in the second area of the optical surface;
wherein detecting a continuous rolling motion of the body part on the optical surface comprises determining if there is a continuity of the print between the first area and the second area; and
generating one or more of;
(i) a continuous rolling motion event when the detected motion is a continuous rolling motion and (ii) a continuous sliding motion event when the detected motion is a continuous sliding motion.
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Abstract
An optical scanner scans a first portion of a print of a body part such as a finger in a first area of an optical surface. The optical scanner detects a motion of the body part to a second area of the optical surface. This can be done in various ways. One way is for the optical scanner to detect a sliding motion of the body part to determine if most of the first portion of the print is in the second area. Another way is for the optical scanner to determine a rolling motion of the print based on a continuity of the print from the first area to the second area. A similar system and method is disclosed which detects a rolling motion of a body part by using a sleeve with multiple properties.
20 Citations
14 Claims
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1. A method comprising:
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scanning a first portion of a print of a body part in a first area of an optical surface; detecting whether a motion of the body part to a second area of the optical surface is a continuous rolling motion or a continuous sliding motion;
wherein detecting a continuous sliding motion of the body part on the optical surface comprises determining if the first portion of the print of the body part in the first area of the optical surface is consistent with a scanned portion of the print of the body part in the second area of the optical surface;
wherein detecting a continuous rolling motion of the body part on the optical surface comprises determining if there is a continuity of the print between the first area and the second area; andgenerating one or more of;
(i) a continuous rolling motion event when the detected motion is a continuous rolling motion and (ii) a continuous sliding motion event when the detected motion is a continuous sliding motion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising:
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an optical scanner configured to scan a first portion of a print of a body part in a first area of an optical surface, and detect whether a motion of the body part to a second area of the optical surface is a continuous rolling motion or a continuous sliding motion, wherein detecting a continuous rolling motion of the body part on the optical surface comprises determining if there is a continuity of the print between the first area and the second area, wherein detecting a continuous sliding motion of the body part on the optical surface comprises determining if the first portion of the print of the body part in the first area of the optical surface is consistent with a scanned portion of the print of the body part in the second area of the optical surface; and a property detector that detects continuity of the print from the first area of the optical surface to the second area of the optical surface, wherein one or more of the optical scanner and the property detector generate one or more of;
(i) a continuous rolling motion event when the detected motion is a continuous rolling motion and (ii) a continuous sliding motion event when the detected motion is a continuous sliding motion. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification