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1. 发明授权

US07496224B2 Method for rendering digital radiographic images for display based on independent control of fundamental image quality parameters 有权
标题翻译：用于基于对基本图像质量参数的独立控制来渲染用于显示的数字放射照相图像的方法
公开(公告)号：US07496224B2
公开(公告)日：2009-02-24
申请号：US11781973
申请日：2007-07-24
申请人： Mary E. Couwenhoven , Robert A. Senn
发明人： Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T5/004 , G06T2207/20016
摘要： A method of enhancing a digital image comprising: providing a digital image; decomposing the provided digital image into a multi-frequency band representation including a low frequency band image and multiple different high frequency band images; multiplying each of the high-frequency band images with a gain factor; summing together the unmodified low frequency band image and the modified high-frequency band images to produce a reconstructed digital image; and mapping the reconstructed digital image through a tone-scale look-up-table to map the reconstructed digital image to optical densities.
摘要翻译：一种增强数字图像的方法，包括：提供数字图像; 将所提供的数字图像分解成包括低频带图像和多个不同的高频带图像的多频带表示; 将每个高频带图像与增益因子相乘; 将未修改的低频带图像和修改的高频带图像相加在一起以产生重构的数字图像; 并通过色阶式查找表映射重建的数字图像，以将重建的数字图像映射到光密度。

2. 发明授权

US07822256B2 Method for rendering digital radiographic images for display based on independent control of fundamental image quality parameters 有权
标题翻译：用于基于对基本图像质量参数的独立控制来渲染用于显示的数字放射照相图像的方法
公开(公告)号：US07822256B2
公开(公告)日：2010-10-26
申请号：US12180589
申请日：2008-07-28
申请人： Mary E. Couwenhoven , Robert A. Senn
发明人： Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00
CPC分类号： G06T5/004 , G06T2207/20016
摘要： A system for enhancing a digital image. The system includes: means for providing a digital image; means for decomposing the provided digital image into a multi-frequency band representation of four frequency bands as follows: a lowest frequency band image which represents large-sized features in the digital image; a low-to-mid frequency band image which represents mid-sized features of the digital image; a mid-to-high frequency band image which represents the small-sized features in the digital image; and a highest frequency band which represents very fine detail in the digital image; means for manipulating said low-to-mid frequency band image to produce a contrast effect without affecting the overall dynamic range of said digital image; means for multiplying each of said high-frequency band images with a gain factor; means for summing together said unmodified low frequency band image and said modified high-frequency band images to produce a reconstructed digital image; and means for mapping said reconstructed digital image through a tone-scale look-up table to map said reconstructed digital image to optical densities.
摘要翻译：一种用于增强数字图像的系统。该系统包括：用于提供数字图像的装置; 用于将所提供的数字图像分解为四个频带的多频带表示的装置，如下：表示数字图像中的大尺寸特征的最低频带图像; 表示数字图像的中等尺寸特征的低到中频带图像; 代表数字图像中的小尺寸特征的中到高频带图像; 以及表示数字图像中非常精细细节的最高频带; 用于操纵所述低至中频带图像以产生对比度效果而不影响所述数字图像的整体动态范围的装置; 用于将每个所述高频带图像与增益因子相乘的装置; 用于将所述未修改的低频带图像和所述修改的高频带图像相加在一起以产生重构的数字图像的装置; 以及用于通过色调尺度查找表映射所述重建的数字图像以将所述重建的数字图像映射到光密度的装置。

3. 发明申请

US20080279440A1 METHOD FOR RENDERING DIGITAL RADIOGRAPHIC IMAGES FOR DISPLAY BASED ON INDEPENDENT CONTROL OF FUNDAMENTAL IMAGE QUALITY PARAMETERS 有权
标题翻译：基于图像质量参数独立控制的数字显示图像渲染方法
公开(公告)号：US20080279440A1
公开(公告)日：2008-11-13
申请号：US12180589
申请日：2008-07-28
申请人： Mary E. Couwenhoven , Robert A. Senn
发明人： Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T5/004 , G06T2207/20016
摘要： A system for enhancing a digital image. The system includes: means for providing a digital image; means for decomposing the provided digital image into a multi-frequency band representation of four frequency bands as follows: a lowest frequency band image which represents large-sized features in the digital image; a low-to-mid frequency band image which represents mid-sized features of the digital image; a mid-to-high frequency band image which represents the small-sized features in the digital image; and a highest frequency band which represents very fine detail in the digital image; means for manipulating said low-to-mid frequency band image to produce a contrast effect without affecting the overall dynamic range of said digital image; means for multiplying each of said high-frequency band images with a gain factor; means for summing together said unmodified low frequency band image and said modified high-frequency band images to produce a reconstructed digital image; and means for mapping said reconstructed digital image through a tone-scale look-up table to map said reconstructed digital image to optical densities.
摘要翻译：一种用于增强数字图像的系统。该系统包括：用于提供数字图像的装置; 用于将所提供的数字图像分解为四个频带的多频带表示的装置，如下：表示数字图像中的大尺寸特征的最低频带图像; 表示数字图像的中等尺寸特征的低到中频带图像; 代表数字图像中的小尺寸特征的中到高频带图像; 以及在数字图像中表示非常精细细节的最高频带; 用于操纵所述低至中频带图像以产生对比度效果而不影响所述数字图像的整体动态范围的装置; 用于将每个所述高频带图像与增益因子相乘的装置; 用于将所述未修改的低频带图像和所述修改的高频带图像相加在一起以产生重构的数字图像的装置; 以及用于通过色调尺度查找表映射所述重建的数字图像以将所述重建的数字图像映射到光密度的装置。

4. 发明授权

US07386155B2 Transforming visual preference terminology for radiographic images 有权
标题翻译：转换放射照相图像的视觉偏好术语
公开(公告)号：US07386155B2
公开(公告)日：2008-06-10
申请号：US10994719
申请日：2004-11-22
申请人： David H. Foos , Mary E. Couwenhoven , Robert A. Senn
发明人： David H. Foos , Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T5/001 , G06T2207/10116 , G06T2207/20092 , G06T2207/30004
摘要： A method for transforming visual preference terminology into a set of fundamental image-quality attributes, and using these attributes to produce a display ready radiographic image that meets the desired appearance. The visual preference terminology can be specified in a hierarchical structure providing a flexible and configurable interface to a radiographic system.
摘要翻译：一种用于将视觉偏好术语转换为一组基本图像质量属性的方法，并且使用这些属性来产生满足期望外观的显示准备放射照相图像。可以在分层结构中指定视觉偏好术语，为射线照相系统提供灵活且可配置的界面。

5. 发明授权

US07266229B2 Method for rendering digital radiographic images for display based on independent control of fundamental image quality parameters 有权
标题翻译：用于基于对基本图像质量参数的独立控制来渲染用于显示的数字放射照相图像的方法
公开(公告)号：US07266229B2
公开(公告)日：2007-09-04
申请号：US10625964
申请日：2003-07-24
申请人： Mary E. Couwenhoven , Robert A. Senn
发明人： Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T5/004 , G06T2207/20016
摘要： A method of enhancing a digital image comprising: providing a digital image; decomposing the provided digital image into a multi-frequency band representation including a low frequency band image and multiple different high frequency band images; multiplying each of the high-frequency band images with a gain factor; summing together the unmodified low frequency band image and the modified high-frequency band images to produce a reconstructed digital image; and mapping the reconstructed digital image through a tone-scale look-up-table to map the reconstructed digital image to optical densities
摘要翻译：一种增强数字图像的方法，包括：提供数字图像; 将所提供的数字图像分解成包括低频带图像和多个不同的高频带图像的多频带表示; 将每个高频带图像与增益因子相乘; 将未修改的低频带图像和修改的高频带图像相加在一起以产生重构的数字图像; 并通过色阶式查找表映射重建的数字图像，以将重建的数字图像映射到光密度

6. 发明授权

US07492939B2 Method for rendering digital radiographic images for display based on independent control of fundamental image of quality parameters 有权
标题翻译：基于对质量参数的基本图像的独立控制来渲染用于显示的数字放射照相图像的方法
公开(公告)号：US07492939B2
公开(公告)日：2009-02-17
申请号：US11781975
申请日：2007-07-24
申请人： Mary E. Couwenhoven , Robert A. Senn
发明人： Mary E. Couwenhoven , Robert A. Senn
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T5/004 , G06T2207/20016
摘要： A method of enhancing a digital image comprising: providing a digital image; decomposing the provided digital image into a multi-frequency band representation including a low frequency band image and multiple different high frequency band images; multiplying each of the high-frequency band images with a gain factor; summing together the unmodified low frequency band image and the modified high-frequency band images to produce a reconstructed digital image; and mapping the reconstructed digital image through a tone-scale look-up-table to map the reconstructed digital image to optical densities.
摘要翻译：一种增强数字图像的方法，包括：提供数字图像; 将所提供的数字图像分解成包括低频带图像和多个不同的高频带图像的多频带表示; 将每个高频带图像与增益因子相乘; 将未修改的低频带图像和修改的高频带图像相加在一起以产生重构的数字图像; 并通过色阶式查找表映射重建的数字图像，以将重建的数字图像映射到光密度。

7. 发明授权

US08818065B2 Methods and apparatus for scatter correction for CBCT system and cone-beam image reconstruction 有权
标题翻译：用于CBCT系统和锥束图像重建的散射校正的方法和装置
公开(公告)号：US08818065B2
公开(公告)日：2014-08-26
申请号：US13537226
申请日：2012-06-29
申请人： Dong Yang , Nathan J. Packard , Robert A. Senn
发明人： Dong Yang , Nathan J. Packard , Robert A. Senn
IPC分类号： G06K9/00
CPC分类号： A61B6/5282 , A61B6/032 , A61B6/4085 , A61B6/583 , G06T5/50 , G06T7/0016 , G06T11/005 , G06T2207/10116 , G06T2207/20182
摘要： Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.
摘要翻译：至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据。对于多个投影图像中的每一个，可以生成增强的投影图像。在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个投影图像。

8. 发明授权

US5633511A Automatic tone scale adjustment using image activity measures 失效
标题翻译：使用图像活动度量进行自动色调调整
公开(公告)号：US5633511A
公开(公告)日：1997-05-27
申请号：US577756
申请日：1995-12-22
申请人： Hsien-Che Lee , Lori L. Barski , Robert A. Senn
发明人： Hsien-Che Lee , Lori L. Barski , Robert A. Senn
IPC分类号： A61B6/00 , G06T5/00 , G06T5/40 , H04N1/407 , G03B42/02
CPC分类号： G06T5/009 , G06T5/40 , G06T2207/10116
摘要： A method of automatically adjusting the tone scale adjustment for digital radiographic images. The method includes the steps of providing an input digital radiographic image; estimating the image noise as a function of code value of the image; determining the range of code values in the input image; determining which way the input image should be processed; determining a bounding box which contains the region of interest of the input image; computing the image activity histogram of the input image; determining four points from the image activity histogram; constructing the tone-scale curve for the input image; and mapping the input image through the tone-scale curve to produce an output image with good tone scale.
摘要翻译：一种自动调整数字放射照相图像色阶调整的方法。该方法包括提供输入数字放射照相图像的步骤; 估计图像噪声作为图像的代码值的函数; 确定输入图像中的代码值的范围; 确定输入图像的处理方式; 确定包含输入图像的感兴趣区域的边界框; 计算输入图像的图像活动直方图; 从图像活动直方图确定四个点; 构建输入图像的色阶曲线; 并通过色阶曲线映射输入图像以产生具有良好色阶的输出图像。

9. 发明申请

US20130004042A1 METHODS AND APPARATUS FOR SCATTER CORRECTION FOR CBCT SYSTEM AND CONE-BEAM IMAGE RECONSTRUCTION 有权
标题翻译：用于CBCT系统和球面图像重建的散射校正的方法和装置
公开(公告)号：US20130004042A1
公开(公告)日：2013-01-03
申请号：US13537226
申请日：2012-06-29
申请人： Dong Yang , Nathan J. Packard , Robert A. Senn
发明人： Dong Yang , Nathan J. Packard , Robert A. Senn
IPC分类号： G06K9/00
CPC分类号： A61B6/5282 , A61B6/032 , A61B6/4085 , A61B6/583 , G06T5/50 , G06T7/0016 , G06T11/005 , G06T2207/10116 , G06T2207/20182
摘要： Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.
摘要翻译：至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据。对于多个投影图像中的每一个，可以生成增强的投影图像。在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个投影图像。

10. 发明授权

US08855394B2 Methods and apparatus for texture based filter fusion for CBCT system and cone-beam image reconstruction 有权
标题翻译：用于CBCT系统和锥束图像重建的基于纹理的滤波器融合的方法和装置
公开(公告)号：US08855394B2
公开(公告)日：2014-10-07
申请号：US13537205
申请日：2012-06-29
申请人： Dong Yang , Robert A. Senn
发明人： Dong Yang , Robert A. Senn
IPC分类号： G06K9/40 , G06T11/00
CPC分类号： G06K9/40 , G06T11/003 , G06T11/006 , G06T2211/421
摘要： Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus can obtain a 3D volume reconstruction or projection image by generating a first-filtered set of projection images from a plurality of 2-D projection images taken over a range of scan angles and a different second-filtered set of projection images from the plurality of 2-D projection images. Then, for example, a first 3-D volume image of the subject from the first-filtered set of projection images and a second 3-D volume image of the subject from the second-filtered set of projection images can be combined using different weighting combinations in at least two corresponding portions to generate the 3-D volume image of the subject.
摘要翻译：至少部分地在与数字放射照相设备一起使用的计算机上执行的被摄体的3-D体积图像重建的方法和/或装置的实施例可以通过生成第一滤波集合来获得3D体积重建或投影图像来自多个2-D投影图像的投影图像在多个扫描角度范围内拍摄，以及不同的第二滤波的投影图像集合来自多个2-D投影图像。然后，例如，可以使用不同的加权来组合来自第一滤波的投影图像集合的被摄体的第一3-D体积图像和来自第二滤波的投影图像组的被摄体的第二3-D体积图像在至少两个对应部分中的组合以产生受试者的3-D体积图像。

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