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31. 发明授权

US06677982B1 Method for three dimensional spatial panorama formation 失效
标题翻译：三维空间全景形成方法
公开(公告)号：US06677982B1
公开(公告)日：2004-01-13
申请号：US09686610
申请日：2000-10-11
申请人： Shoupu Chen , Lawrence A. Ray
发明人： Shoupu Chen , Lawrence A. Ray
IPC分类号： H04N700
CPC分类号： H04N5/23238 , G06T3/4038 , G06T2200/04 , G06T2200/32 , G06T2207/10012 , G06T2207/10028 , H04N13/106
摘要： A method, a system, and a computer program product for deriving a three-dimensional panorama from a plurality of stereo image pairs of a scene generated from a plurality of cameras, that includes acquiring a plurality of stereo image pairs of the scene, wherein there is an intra-overlap region between vertically aligned stereo image pairs; acquiring a plurality of stereo image pairs of the scene by rotating the plurality of cameras about a Y-axis, wherein there is an inter-overlap region between adjacent stereo image pairs; providing displacement data for capturing scene depth from a local XYZ image with non-distorted depth information; generating (X,Y,Z) values for each of the stereo image pairs with respect to a local three-dimensional coordinate system wherein the intra-stereo image pair is taken; selecting a reference three-dimensional world coordinate system against which spatial information of the scene can be correctly presented; transforming the generated (X,Y,Z) values from each of the local three-dimensional coordinate systems to the selected reference three-dimensional world coordinate system; warping the transformed (X,Y,Z) images onto a cylindrical surface, and forming a plurality of warped (X,Y,Z) images; registering adjacent warped (X,Y,Z) images; and forming a three-dimensional panorama, i.e., a (X,Y,Z) panorama using the warped (X,Y,Z) images.
摘要翻译：一种用于从多个相机生成的场景的多个立体图像对中导出三维全景图的方法，系统和计算机程序产品，其包括获取场景的多个立体图像对，其中，是垂直对齐的立体图像对之间的重叠内区域; 通过围绕Y轴旋转所述多个照相机来获取所述场景的多个立体图像对，其中在相邻的立体图像对之间存在相互重叠的区域; 提供用于从具有非失真深度信息的本地XYZ图像捕获场景深度的位移数据; 针对立体图像对采用的局部三维坐标系生成每个立体图像对的（X，Y，Z）值; 选择可以正确呈现场景的空间信息的参考三维世界坐标系; 将生成的（X，Y，Z）值从局部三维坐标系中的每一个变换为所选择的参考三维世界坐标系; 将变形的（X，Y，Z）图像翘曲在圆柱形表面上，并形成多个翘曲（X，Y，Z）图像; 记录相邻的扭曲（X，Y，Z）图像; 以及使用扭曲（X，Y，Z）图像形成三维全景图，即（X，Y，Z）全景图。

32. 发明授权

US06410930B1 Method and apparatus for aligning a color scannerless range imaging system 有权
标题翻译：用于对准彩色无扫描仪范围成像系统的方法和装置
公开(公告)号：US06410930B1
公开(公告)日：2002-06-25
申请号：US09645752
申请日：2000-08-24
申请人： Joseph F. Revelli, Jr. , Lawrence A. Ray
发明人： Joseph F. Revelli, Jr. , Lawrence A. Ray
IPC分类号： G01J350
CPC分类号： G01S7/481 , G01S17/89
摘要： An alignment method is provided for a color scannerless range imaging system whereby the separate optical paths of colored texture and monochromatic range images may be precisely aligned. The range imaging system includes an illumination system for illuminating a scene with modulated infrared illumination, image forming optics for forming an image of the scene, optical means for forming first and second optical paths between the image forming optics and an image sensor, a transponder subject to modulation located in the first optical path for amplifying and converting infrared light to visible light to form a range image on the image sensor. The alignment method includes the steps of providing a target having alignment indicia that can be imaged in both infrared and visible regions of the spectrum, capturing an infrared image of the target using the first optical path, capturing a color image of the target using the second optical path, and adjusting at least one of the optical paths so that the captured images are coincident.
摘要翻译：提供了一种用于彩色无扫描范围成像系统的对准方法，由此可以精确对准彩色纹理和单色范围图像的单独光路。范围成像系统包括用调制红外照明照明场景的照明系统，用于形成场景图像的图像形成光学器件，用于在成像光学器件和图像传感器之间形成第一和第二光路的光学装置，应答器对象到位于第一光路中的调制，用于将红外光放大并转换成可见光，以在图像传感器上形成范围图像。对准方法包括以下步骤：提供具有可以在光谱的红外和可见区域中成像的对准标记的目标，使用第一光路捕获目标的红外图像，使用第二光学捕获目标的彩色图像光路，并且调整光路中的至少一个，使得所捕获的图像一致。

33. 发明授权

US5754311A Method and apparatus for generating simultaneously derived correlated digital halftone patterns 失效
标题翻译：用于产生同时衍生的相关数字半色调图案的方法和装置
公开(公告)号：US5754311A
公开(公告)日：1998-05-19
申请号：US848779
申请日：1992-03-10
申请人： Lawrence A. Ray
发明人： Lawrence A. Ray
IPC分类号： G06T5/00 , H04N1/405 , H04N1/40
CPC分类号： H04N1/4051
摘要： Method and apparatus for generating a halftone image. An ensemble of correlated minimum visual modulation two-dimensional binary patterns are provided. Each pattern corresponds to one density level of a digital input signal. The set of patterns is generated simultaneously to minimize an ensemble cost function which is the variance of non-zero spatial frequencies weighted by a human visual system modulation transfer function. The patterns are then modularly addressed to select bits to form halftone pattern.
摘要翻译：用于产生半色调图像的方法和装置。提供了相关的最小视觉调制二维二进制模式的集合。每个图案对应于数字输入信号的一个密度级。同时产生一组模式以最小化作为由人类视觉系统调制传递函数加权的非零空间频率的方差的整体成本函数。然后将模式模块化地寻址以选择位以形成半色调图案。

34. 发明授权

US5586203A Method and apparatus for generating a halftone pattern for a multi-level output device 失效
标题翻译：用于产生用于多电平输出装置的半色调图案的方法和装置
公开(公告)号：US5586203A
公开(公告)日：1996-12-17
申请号：US331246
申请日：1994-10-28
申请人： Kevin E. Spaulding , Lawrence A. Ray
发明人： Kevin E. Spaulding , Lawrence A. Ray
IPC分类号： G06T5/00 , G09G5/02 , H04N1/40 , H04N1/405 , G06K9/38
CPC分类号： H04N1/40087 , H04N1/4051
摘要： Method and apparatus for generating a halftone image for a multi-level output device employing a dither matrix generated by minimizing a visual cost function. The dither matrix is addressed by the least significant bits of a pixel address and the value supplied by the dither matrix is added to the pixel value. The resulting sum is quantized in a quantizer to produce the multi-level halftone value.
摘要翻译：用于生成用于通过最小化视觉成本函数产生的抖动矩阵的多级输出装置的半色调图像的方法和装置。抖动矩阵由像素地址的最低有效位寻址，并且由抖动矩阵提供的值被添加到像素值。所得到的和在量化器中量化以产生多级半色调值。

35. 发明授权

US5574573A Compression method for a standardized image library 失效
标题翻译：标准化图像库的压缩方法
公开(公告)号：US5574573A
公开(公告)日：1996-11-12
申请号：US145284
申请日：1993-10-29
申请人： Lawrence A. Ray , Richard N. Ellson
发明人： Lawrence A. Ray , Richard N. Ellson
IPC分类号： H04N7/26 , G06T9/00 , G07C9/00 , H03M7/30 , H04N1/41 , H04N1/387 , G06K9/00 , H04N1/00 , H04N7/18
CPC分类号： G07C9/00071 , G06T9/008
摘要： A technique involving the standardization of the subject matter of an image and the compression of the image using features of the standardization can provide for a high compression ratio. This technique can be used to improve the quality of a restored image for a predetermined amount of storage space.
摘要翻译：涉及图像标题化和使用标准化特征压缩图像的技术可提供高压缩率。该技术可以用于提高恢复的图像的质量以达到预定量的存储空间。

36. 发明授权

US5436970A Method and apparatus for transaction card verification 失效
标题翻译：交易卡验证方法和装置
公开(公告)号：US5436970A
公开(公告)日：1995-07-25
申请号：US142781
申请日：1993-10-26
申请人： Lawrence A. Ray , Richard N. Ellson
发明人： Lawrence A. Ray , Richard N. Ellson
IPC分类号： G06Q20/34 , G06Q20/36 , G06Q20/40 , G07C9/00 , G07F7/10 , H04K1/00 , H04L9/00
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3674 , G06Q20/40145 , G07C9/00079 , G07F7/10
摘要： Techniques for multiple verification of transaction cards incorporating digital image information and authorization data onto a transaction card to assist in the card verification process. This technique requires the authorized card holder to have a picture identification accompany the application for the card. Picture information is converted to a digital image that is stored and used in one or a plurality of means for verifying that the presenter of the card, at the point of the transaction, is the authorized user. Such means include visual comparison of card presenter and extracted digital image information and verification that the data has not been altered. Encryption of the data, as it is read from the card, at the point of origin is used to formulate encoded authorization data that is then compared against like encoded authorized card holder data stored at a centrally located data base.
摘要翻译：将数字图像信息和授权数据合并到交易卡上以便协助卡验证过程的交易卡的多次验证技术。这种技术要求授权持卡人在卡片的应用程序中附上图片标识。图像信息被转换为以一种或多种装置存储和使用的数字图像，用于验证在交易点处卡的呈现者是授权用户。这样的方法包括卡片呈现者的视觉比较和提取的数字图像信息，以及数据未被改变的验证。数据在从原始位置读取时的加密用于制定编码的授权数据，然后与存储在位于中心位置的数据库中的相同编码的授权持卡人数据进行比较。

37. 发明授权

US5377025A Optimal color quantization for addressing multi-dimensional color calibration look-up-table 失效
标题翻译：用于寻址多维颜色校准查找表的最佳颜色量化
公开(公告)号：US5377025A
公开(公告)日：1994-12-27
申请号：US980860
申请日：1992-11-24
申请人： Kevin E. Spaulding , Lawrence A. Ray , James R. Sullivan
发明人： Kevin E. Spaulding , Lawrence A. Ray , James R. Sullivan
IPC分类号： H04N1/60 , H04N1/46
CPC分类号： H04N1/60 , H04N1/6019
摘要： This invention minimizes the color errors associated with performing conversion and/or correction of color digital image data using multi-dimensional look-up tables of a limited size. By distributing the errors across the color gamut it is possible to reduce the average color error as well as the maximum color errors associated with linear or conventional linear or nonlinear, e.g. cube-root or logarithmic, remapping schemes. The resulting advantage will be color images with greatly reduced artifacts.
摘要翻译：本发明使用有限尺寸的多维查找表来最小化与执行彩色数字图像数据的转换和/或校正相关联的颜色误差。通过在色域上分布错误，可以减少与线性或常规线性或非线性相关联的平均颜色误差以及最大色差。立方根或对数，重映射方案。所产生的优点将是具有大大减少的伪影的彩色图像。

38. 发明授权

US08849016B2 Panoramic image generation from CBCT dental images 有权
标题翻译：来自CBCT牙科图像的全景图像生成
公开(公告)号：US08849016B2
公开(公告)日：2014-09-30
申请号：US13290196
申请日：2011-11-07
申请人： Shoupu Chen , Lawrence A. Ray , Jean-Marc Inglese
发明人： Shoupu Chen , Lawrence A. Ray , Jean-Marc Inglese
IPC分类号： G06K9/00
CPC分类号： G06T3/0031 , G06K2209/05 , G06T3/4038
摘要： A method for forming a panoramic image from a computed tomography image volume, acquires image data elements for one or more computed tomographic volume images of a subject, identifies a subset of the acquired computed tomographic images that contain one or more features of interest and defines, from the subset of the acquired computed tomographic images, a sub-volume having a curved shape that includes one or more of the contained features of interest. The curved shape is unfolded by defining a set of unfold lines wherein each unfold line extends at least between two curved surfaces of the curved shape sub-volume and re-aligning the image data elements within the curved shape sub-volume according to a re-alignment of the unfold lines. One or more views of the unfolded sub-volume are displayed.
摘要翻译：一种用于从计算机断层摄影图像体积形成全景图像的方法，获取对象的一个或多个计算机断层摄影体积图像的图像数据元素，识别包含一个或多个感兴趣特征的所获取的计算机断层图像的子集，从所获取的计算机断层图像的子集中，具有包括感兴趣的所包含特征中的一个或多个的具有弯曲形状的子体积。弯曲形状通过限定一组展开线而展开，其中每个展开线至少在弯曲形状子体积的两个弯曲表面之间延伸，并且根据重新排列在曲面形状子体积内重新对准图像数据元素，展开线对齐。显示展开的子卷的一个或多个视图。

39. 发明授权

US08768027B2 Method and system for cone beam computed tomography high density object artifact reduction 有权
标题翻译：锥束计算机断层扫描高密度物体伪影减少的方法和系统
公开(公告)号：US08768027B2
公开(公告)日：2014-07-01
申请号：US12710522
申请日：2010-02-23
申请人： Shoupu Chen , Lawrence A. Ray
发明人： Shoupu Chen , Lawrence A. Ray
IPC分类号： G06K9/00 , A61B6/00 , G06T7/00
CPC分类号： G06T7/0012 , A61B6/5258 , G06T11/005 , G06T2207/10081
摘要： A method of providing a corrected reconstructed computed tomography image accesses image data for computed tomography images of a subject, identifying a subset of the computed tomography images that contain high density features. At least one high density feature is detected in each of the identified subset. The high density feature is classified and a compensation image is formed by distributing pixels representative of tissue over the classified high density feature. A difference sinogram is generated for each image in the identified subset of images by subtracting a first sinogram of the high density feature from a second sinogram of the original image. A resultant sinogram is generated for each image in the identified subset by adding a third sinogram generated according to the compensation image to the difference sinogram. The corrected reconstructed computed tomography image is formed according to the resultant sinogram generated for each image in the identified subset of images.
摘要翻译：提供校正的重建计算机断层摄影图像的方法访问用于对象的计算机断层摄影图像的图像数据，识别包含高密度特征的计算机断层摄影图像的子集。在所识别的每个子集中检测到至少一个高密度特征。高密度特征被分类，并且通过在分类的高密度特征上分布代表组织的像素来形成补偿图像。通过从原始图像的第二正弦图中减去高密度特征的第一正弦图，对识别的图像子集中的每个图像生成差异正弦图。通过将根据补偿图像生成的第三正弦图加到差分正弦图中，为识别的子集中的每个图像生成正弦图。根据在识别的图像子集中为每个图像生成的合成正弦图形成校正的重建计算机断层摄影图像。

40. 发明申请

US20130243276A1 INTERACTIVE 3-D EXAMINATION OF ROOT FRACTURES 有权
标题翻译：根部三维交叉检查
公开(公告)号：US20130243276A1
公开(公告)日：2013-09-19
申请号：US13422145
申请日：2012-03-16
申请人： Andre Souza , Lawrence A. Ray
发明人： Andre Souza , Lawrence A. Ray
IPC分类号： G06K9/00
CPC分类号： G06T7/162 , G06T7/11 , G06T7/194 , G06T2200/04 , G06T2200/24 , G06T2207/10081 , G06T2207/20072 , G06T2207/20101 , G06T2207/30036
摘要： A method for 3-D interactive examination of a subject tooth, executed at least in part by a computer, obtains volume image data containing at least the subject tooth and background content adjacent to the subject tooth and displays a first image from the volume data that shows at least the subject tooth and the background content. A portion of the background content in the first image is identified according to a first operator instruction. Tooth content for at least the subject tooth in the first image is identified according to a second operator instruction. At least the subject tooth is segmented from within the volume data according to the first and second operator instructions. The segmented subject tooth is then displayed.
摘要翻译：用于至少部分由计算机执行的对象牙齿的3-D交互式检查的方法获得至少包含与所述牙齿相邻的对象牙齿和背景内容的体积图像数据，并从所述体积数据显示第一图像，至少显示受试者牙齿和背景内容。根据第一操作者指令来识别第一图像中的背景内容的一部分。根据第二操作者指令识别至少第一图像中的被检齿的牙齿含量。根据第一和第二操作者指令，至少从卷数据内分割被检齿。然后显示分段的主题牙齿。

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