최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0139411 (2008-06-13) |
등록번호 | US-9383855 (2016-07-05) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 399 |
Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of t
Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.
1. A method for segmenting contacts in a proximity image, the method comprising: obtaining a proximity image, the proximity image including a plurality of proximity values, each proximity value representing a measurement of touch object proximity at a location within a sensing area of a touch sensin
1. A method for segmenting contacts in a proximity image, the method comprising: obtaining a proximity image, the proximity image including a plurality of proximity values, each proximity value representing a measurement of touch object proximity at a location within a sensing area of a touch sensing surface, each location being associated with a first coordinate in a first dimension of the sensing surface and a second coordinate in a second dimension of the sensing surface;locating a local maximum proximity value in the proximity image; andafter locating the local maximum proximity value, determining a two-dimensional boundary of a contact, the boundary surrounding the local maximum proximity value, including a two-dimensional search that applies a first boundary test including comparing a first proximity value to a second proximity value adjacent to the first proximity value in the first dimension, comparing the first proximity value to a third proximity value adjacent to the first proximity value in the second dimension, and comparing the third proximity value to a fourth proximity value adjacent to the third proximity value in the first dimension. 2. The method of claim 1 further comprising forming groups from those proximity values surrounding each local maximum proximity value up to and including the corresponding contact boundary proximity values. 3. The method of claim 2 further comprising combining groups of proximity values that partially overlap. 4. The method of claim 3 further comprising extracting group positions and features by fitting an ellipse to each group of proximity values. 5. The method of claim 2 further comprising extracting group positions and features by fitting an ellipse to each group of proximity values. 6. The method of claim 1 further comprising locating all local maximum proximity values in the proximity image prior to determining the two-dimensional boundary of the contact. 7. An apparatus comprising: a touch sensing surface; andan input system that obtains a proximity image, the proximity image including a plurality of proximity values, each proximity value representing a measurement of touch object proximity at a location within a sensing area of the touch sensing surface, each location being associated with a first coordinate in a first dimension of the sensing surface and a second coordinate in a second dimension of the sensing surface;locates a local maximum proximity value in the proximity image; andafter locating the local proximity value, determines a two-dimensional boundary of a contact, the boundary surrounding the local maximum proximity value, including a two-dimensional search that applies a first boundary test including comparing a first proximity value to a second proximity value adjacent to the first proximity value in the first dimension, comparing the first proximity value to a third proximity value adjacent to the first proximity value in the second dimension, and comparing the third proximity value to a fourth proximity value adjacent to the third proximity value in the first dimension. 8. The apparatus of claim 7, wherein the input system forms groups from those proximity values surrounding each local maximum proximity value up to and including the corresponding contact boundary proximity values. 9. The apparatus of claim 8, wherein the input system combines groups of proximity values that partially overlap. 10. The apparatus of claim 9, wherein the input system extracts group positions and features by fitting an ellipse to each group of proximity values. 11. The apparatus of claim 8, wherein the input system extracts group positions and features by fitting an ellipse to each group of proximity values. 12. The apparatus of claim 7, wherein the input system locates all local maximum proximity values in the proximity image prior to determining the two-dimensional boundary of the contact. 13. A non-transitory computer-readable storage medium storing computer-readable program instructions executable to perform a method of segmenting contacts in a proximity image, the method comprising: obtaining a proximity image, the proximity image including a plurality of proximity values, each proximity value representing a measurement of touch object proximity at a location within a sensing area of a touch sensing surface, each location being associated with a first coordinate in a first dimension of the sensing surface and a second coordinate in a second dimension of the sensing surface;locating a local maximum proximity value in the proximity image; andafter locating the local maximum proximity value, determining a two-dimensional boundary of a contact, the boundary surrounding the local maximum proximity value, including a two-dimensional search that applies a first boundary test including comparing a first proximity value to a second proximity value adjacent to the first proximity value in the first dimension, comparing the first proximity value to a third proximity value adjacent to the first proximity value in the second dimension, and comparing the third proximity value to a fourth proximity value adjacent to the third proximity value in the first dimension. 14. The non-transitory computer-readable storage medium of claim 13, the method further comprising forming groups from those proximity values surrounding each local maximum proximity value up to and including the corresponding contact boundary proximity values. 15. The non-transitory computer-readable storage medium of claim 14, the method further comprising combining groups of proximity values that partially overlap. 16. The non-transitory computer-readable storage medium of claim 15, the method further comprising extracting group positions and features by fitting an ellipse to each group of proximity values. 17. The non-transitory computer-readable storage medium of claim 14, the method further comprising extracting group positions and features by fitting an ellipse to each group of proximity values. 18. The non-transitory computer-readable storage medium of claim 13, the method further comprising locating all local maximum proximity values in the proximity image prior to determining the two-dimensional boundary of the contact.
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