公开(公告)号：EP1042729A1

公开(公告)日：2000-10-11

申请号：EP99950091.1

申请日：1999-10-04

申请人： Shade Analyzing Technologies, Inc.

发明人： LEHMANN, Maryann ,  YOUNGS, Perry ,  VOCK, Curtis, A.

IPC分类号： G06K9/00 ,  A61C19/10

CPC分类号： G01J3/46 ,  A61C19/00 ,  A61C19/10 ,  G01J3/462 ,  G01J3/463 ,  G01J3/508 ,  G01N21/25 ,  G06K9/4652 ,  G06K9/6202 ,  G06K9/6255 ,  G06T7/90

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.

摘要翻译： 数字照相机连接到例如数字视频处理器的牙齿分析器子系统和用于电子确定患者牙齿颜色的彩色显示监视器。 初步的是，摄像机捕获与参考遮光罩相对应的一系列数字彩色图像，并将参考阴影与患者牙齿的图像进行电子比较。 在优选实施例中，比较在一组伪像素上进行比较，每组伪像素对应于高分辨率相机中的一组像素。 一旦找到匹配，就将其传送给系统的用户。 在具体实施例中，相机配备有套筒和照明子系统，其有助于减少由于外部因素导致的数字图像的颜色变化。