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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0158732 (1993-11-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 291 인용 특허 : 0 |
A method is described for representing a treatment site (10) of a patient as data suitable for use with a computer-aided design device (46). The method includes scanning the treatment site(10) with a scanning apparatus (40), such as a CT scanner, to produce image data; determining the image data tha
A method is described for representing a treatment site (10) of a patient as data suitable for use with a computer-aided design device (46). The method includes scanning the treatment site(10) with a scanning apparatus (40), such as a CT scanner, to produce image data; determining the image data that represents the surface of the item; generating vectors from the determined data; and associating the vectors with poles of a non-uniform rational B-spline so that a polynomial equation may be generated, which is a data form suitable for use with CAD devices.
A method for physically modelling an image of a surface of a structure of interest, the method comprising the steps of: generating an image of an object including the structure of interest using a non-intrusive image generating device which produces a set of image data; filtering the image data to d
A method for physically modelling an image of a surface of a structure of interest, the method comprising the steps of: generating an image of an object including the structure of interest using a non-intrusive image generating device which produces a set of image data; filtering the image data to distinguish between image data points corresponding to the structure of interest and image data points corresponding to other structures; generating a surface representation of the structure of interest using the filtered image data; generating a set of vectors from the surface representation defining the boundary of the structure of interest; associating each vector with a pole of a non-uniform rational B-spline to create a series of such B-splines; generating one or more polynomial equations from one or more nonuniform rational B-splines; converting the polynomial equations into slice data suitable for use with a stereolithography system; and forming a model of the image of the surface of the structure of interest with the stereolithography system.
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