|発明の名称||CONTACT DETECTOR, AND CONTACT DETECTION METHOD|
PROBLEM TO BE SOLVED: To provide a contact detector and a contact detection method, capable of detecting the propriety in contact of a fingertip 20 with a plate 30, without attaching a sensor for detecting the contact of the fingertip 20 with the plate 30, onto the fingertip 20.
SOLUTION: A tapping counter 1 is the contact detector for detecting the contact of the fingertip 20 with the plate 30, and is provided with a photographing part 11 for photographing the fingertip 20 and the plate 30, a distance measuring part 13 for measuring the first time-serial variation of a distance from the fingertip 20 to the plate 30, based on positions of the fingertip 20 and the plate 30 within an image photographed by the photographing part 11, a high-pass filter 14 for extracting a time-serial variation of a cut-off frequency or more of frequency component as the second time-serial variation, out of the first time-serial variation measured by the distance measuring part 13, and a contact detecting part 15 for detecting the contact of the fingertip 20 with the plate 30, when the second time-serial variation extracted by the high-pass filter 14 comes to a threshold value or more.
- 国立大学法人広島大学 産学・地域連携センター 知的財産部門
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