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    • 3. 发明授权
    • Contact scanners for scanning images of an illuminated film onto a
photosensor array
    • 接触扫描仪将照射胶片的图像扫描到光电传感器阵列上
    • US5256868A
    • 1993-10-26
    • US880776
    • 1992-05-11
    • Martin C. KaplanJames R. MilchClarke K. Eastman
    • Martin C. KaplanJames R. MilchClarke K. Eastman
    • G01T1/29G02B6/06H04N1/028H04N1/193H01J40/14
    • G01T1/2014G02B6/06H04N1/0281H04N1/193
    • Film contact scanners are provided which irradiate a first surface of a film with a light source, and receive an image of the film from a second side of the film at an array of photosensors. In a first embodiment, the array of photosensors is disposed adjacent the film so that each photosensor receives light from a separate point on the film. In a second embodiment, a bundle of optical fibers is disposed between the film and the array of photosensors. A gap is provided between the film and a first end of the bundle of optical fibers. Each photosensor receives the light from one or more of optical fibers for producing a predetermined MTF. In the second embodiment, a portion of the film between the light source and the bundle of optical fibers is formed in a cylindrical shape. A linear direction of the cylindrical shape is oriented to permit the photosensors to scan the film in a first direction. The film is moved past the bundle of optical fibers in the direction of the curve of the film for scanning the film in a second orthogonal direction. The light source includes either a diffuse illuminator or a specular illuminator. Alternatively, the film is sandwiched between a plate of transparent material, disposed adjacent a first side of the film closest to the source of light, and an area fiber optic for maintaining the film in a substantially flat orientation.
    • 提供了用光源照射薄膜的第一表面的薄膜接触式扫描仪,并且以光电传感器的阵列从薄膜的第二侧接收薄膜的图像。 在第一实施例中,光电传感器的阵列被布置在膜附近,使得每个光电传感器从胶片上的分开的点接收光。 在第二实施例中,一束光纤设置在膜和光电传感器阵列之间。 在薄膜和光纤束的第一端之间提供间隙。 每个光电传感器从一个或多个光纤接收光以产生预定的MTF。 在第二实施例中,光源和光纤束之间的膜的一部分形成为圆柱形。 圆柱形的线性方向被定向以允许光电传感器沿第一方向扫描膜。 膜沿胶片的曲线方向移动经过光纤束,以在第二正交方向扫描胶片。 光源包括漫射照明器或镜面照明器。 或者,膜被夹在透明材料板之间,邻近最接近光源的膜的第一侧设置,以及用于将膜保持在基本平坦的取向的区域光纤。
    • 5. 发明授权
    • 3D intraoral measurements using optical multiline method
    • 使用光学多线法进行3D口内测量
    • US09295532B2
    • 2016-03-29
    • US13293308
    • 2011-11-10
    • James R. Milch
    • James R. Milch
    • H04N13/02A61C9/00G01B11/25G06T7/00
    • A61C9/006G01B11/2513G06T7/521G06T2207/30036
    • A method for mapping a sensor pixel array to an illumination pixel array according to a surface forms a group map by assigning each pixel on the sensor array to a corresponding group of an ordered set of groups, each group defined by a set of p adjacent pixels on the illumination pixel array by projecting and recording at least n projected images from a first set of n binary patterns, with transitions between pixels in each of the n binary patterns only at group boundaries. At least m images from a second set of m binary patterns are projected and recorded, with one or more transitions between pixels in each of the m binary pattern offset from group boundaries. At least p multiline images are projected and recorded. Lines in the recorded multiline images are correlated with lines in the multiline images according to the group map.
    • 根据表面将传感器像素阵列映射到照明像素阵列的方法形成组映射,通过将传感器阵列上的每个像素分配给一组有序组的对应组,每组由一组p个相邻像素 通过从n个二进制图案的第一组投影和记录至少n个投影图像,仅在组边界处的n个二进制图案中的每一个中的像素之间进行转换,在照明像素阵列上。 投影和记录来自第二组m个二进制图案的至少m个图像,其中m个二进制图案中的每一个的像素之间的一个或多个转换偏离组边界。 至少投影和记录多行图像。 记录的多行图像中的行与根据组映射的多行图像中的行相关。
    • 6. 发明申请
    • 3D INTRAORAL MEASUREMENTS USING OPTICAL MULTILINE METHOD
    • 使用光学多线方法的3D入门测量
    • US20130120533A1
    • 2013-05-16
    • US13525590
    • 2012-06-18
    • James R. Milch
    • James R. Milch
    • H04N13/02
    • A61C9/006G06T7/521G06T7/55G06T2207/10016G06T2207/10152G06T2207/30036
    • A method for mapping a sensor pixel array to an illumination pixel array according to a surface forms a group mapping by assigning each pixel to a corresponding group, each group with p adjacent pixels on the illumination array and each ordered set having k groups, by projecting and recording a sequence of group index images. Each group index image has, in at least two of the groups, no illuminated pixels and in fewer than (k−1) groups, from 2 to (p−1) adjacent illuminated pixels. The sequence of group index images uses pixels from each of the k groups. At least p multiline images are projected and recorded, wherein each multiline image projects a line within each group. Lines in the multiline images are correlated according to the group mapping and the correlation stored in memory. Integers k and p are greater than or equal to 3.
    • 根据表面将传感器像素阵列映射到照明像素阵列的方法通过将每个像素分配给对应的组来形成组映射,每组具有照明阵列上的p个相邻像素,并且每个有序集合具有k个组,通过投影 并记录一组组索引图像。 每个组索引图像在至少两个组中没有照明像素,并且在少于(k-1)个组中,从2到(p-1)个相邻的照明像素。 组索引图像的序列使用来自k个组中的每一个的像素。 投影和记录至少p个多行图像,其中每个多行图像投影每个组内的一行。 根据组映射和存储在存储器中的相关性,将多行图像中的行相关。 整数k和p大于或等于3。
    • 10. 发明授权
    • Dental shade mapping
    • 牙科阴影贴图
    • US08208704B2
    • 2012-06-26
    • US12834927
    • 2010-07-13
    • Victor C. WongJames R. Milch
    • Victor C. WongJames R. Milch
    • G06K9/00
    • G01J3/46G01J3/0264G01J3/462G01J3/463G01J3/50G01J3/501G01J3/508G01J2003/466
    • A method and apparatus for obtaining a color mapping of a dental object. Illumination is directed toward the object over at least first, second, and third wavelength band, one band at a time. An image of the dental object is captured at each wavelength band to form a set of images of the dental object. For pixels in the captured set of images, an image data value for the pixel corresponds to each of the wavelength bands and calculates interpolated image data values proportional to the spectral reflectance of the dental object, according to the obtained image data values and according to image data values obtained from a reference object at the wavelength bands. Spectral distribution data for a viewing illuminant is obtained and the visual color of the dental object reconstructed according to the calculated interpolated image data values and the obtained spectral distribution of the viewing illuminant.
    • 一种用于获得牙科物体的颜色映射的方法和装置。 照亮在至少第一,第二和第三波长带,一次一个频带上朝向物体。 在每个波长带处捕获牙科物体的图像以形成牙科物体的一组图像。 对于所拍摄的图像集合中的像素,像素的图像数据值对应于每个波长带,并且根据获得的图像数据值并根据图像计算与牙科对象的光谱反射率成比例的内插图像数据值 在波长带从参考对象获得的数据值。 获得用于观察光源的光谱分布数据,并且根据所计算的内插图像数据值和所获得的观察光源的光谱分布重建牙科物体的视觉颜色。