发明名称 |
SYSTEM AND METHODS FOR ANALYZING TOOTH SHADES |
摘要 |
A digital camera (12) connects to a tooth shade analyzer subsystem, e.g., a digital video processor (14), and a color display monitor for the electronic determination of the color of patient's teeth. Preliminarily, the camera captures (26) a series of digital color images of tooth shades corresponding to reference shade guides (34), and electronically compares the reference shades to an image of the patient's tooth. In a preferred embodiment the comparison is done over a set of pseudo-pixels, each corresponding to a group of pixels in an high-resolution camera. Once a match is found, it is communicated to a user of the system (52). In a specific embodiment the camera is equipped with a sleeve and illumination subsystems that help reduce the variations in the color of digital images due to external factors. |
申请公布号 |
WO0026847(A1) |
申请公布日期 |
2000.05.11 |
申请号 |
WO1999US22858 |
申请日期 |
1999.10.04 |
申请人 |
SHADE ANALYZING TECHNOLOGIES, INC.;LEHMANN, MARYANN;YOUNGS, PERRY;VOCK, CURTIS, A. |
发明人 |
LEHMANN, MARYANN;YOUNGS, PERRY;VOCK, CURTIS, A. |
分类号 |
A61C19/04;A61C19/00;A61C19/10;G01J3/46;G01N21/25;G06F19/00;G06K9/62;G06K9/64;G06T1/00;G06T7/00;G06T7/40 |
主分类号 |
A61C19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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