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公开(公告)号：US11331059B2
公开(公告)日：2022-05-17
申请号：US16641475
申请日：2018-08-27
摘要： A method for characterizing bone structure for a patient, method executed at least in part on a computer, acquires one or more 2D x-ray projection images of a volume, wherein image content is acquired at two or more spectral frequencies. The acquired x-ray image content is processed to calculate one or more metrics that characterize bone structure within the imaged volume. The one or more calculated metrics are displayed.
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公开(公告)号：US07876937B2
公开(公告)日：2011-01-25
申请号：US11532246
申请日：2006-09-15
申请人： Jay S. Schildkraut , Shoupu Chen
发明人： Jay S. Schildkraut , Shoupu Chen
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T7/12 , G06T7/149 , G06T2207/10124 , G06T2207/20161 , G06T2207/30064
摘要： A method for determining a location of an object in a radiographic image by segmentation of a region in the image comprises the steps of: determining a first image intensity that is characteristic of high image intensities in the region; determining a second image intensity that is characteristic of low image intensities outside of the region; and determining if a pixel is added to or removed from the region based on the similarity of the pixel's intensity to the first and second intensity.
摘要翻译： 一种用于通过图像中的区域的分割来确定放射线照相图像中的对象的位置的方法包括以下步骤：确定区域中具有高图像强度特征的第一图像强度; 确定区域外的低图像强度特征的第二图像强度; 以及基于所述像素强度与所述第一和第二强度的相似度来确定是否将像素添加到所述区域或从所述区域移除。
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公开(公告)号：US07623692B2
公开(公告)日：2009-11-24
申请号：US11187676
申请日：2005-07-22
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T2207/30061
摘要： A method of generating a pulmonary nodule image from a chest radiograph. The method includes the steps of: producing a map of a clear lung field; removing low frequency variation from the clear lung field to generate a level image; and performing at least one grayscale morphological operation on the level image to generate a nodule-bone image. Pulmonary nodules can be detected using the nodule-bone image by the further steps of: pulmonary nodules from a chest radiograph. The method includes the steps of: identifying candidate nodule locations in the nodule-bone image; segmenting a region around each candidate nodule location in the nodule-bone image; and using the features of the segmented region to determine if a candidate is a nodule.
摘要翻译： 从胸部X光片产生肺结节图像的方法。 该方法包括以下步骤：产生清晰肺域的图; 从清除肺域去除低频变化以产生水平图像; 以及对所述水平图像执行至少一个灰度形态学运算以产生结节 - 骨图像。 肺结节可以使用结节 - 骨图像进一步检测：肺结核从胸部X光照片。 该方法包括以下步骤：识别结节 - 骨图像中的候选结节位置; 分割结节骨图像中每个候选结节位置周围的区域; 并使用分割区域的特征来确定候选者是否是结节。
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公开(公告)号：US5115336A
公开(公告)日：1992-05-19
申请号：US569302
申请日：1990-08-20
CPC分类号： G02F1/195 , G02F1/0126
摘要： A photorefractive system is disclosed containing interposed between electrodes an electrophotographic photoreceptor layer unit and a layer having a second order polarization susceptibility of greater than 10.sup.-9 electrostatic units comprised of organic polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor moiety. The device can be employed to transfer information from one source of electromagnetic radiation to another.
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公开(公告)号：US4955977A
公开(公告)日：1990-09-11
申请号：US419819
申请日：1989-10-11
CPC分类号： G02F1/065 , Y10T428/31504
摘要： An optical article for the propagation of electromagnetic radiation is disclosed comprised of an electrically conductive support on which a poled polymeric film exhibiting a glass transition temperature of at least 80.degree. C. and a second order polarization susceptibility greater than 10.sup.-9 electrostatic units is formed. A layer for enhancing the transmission of electromagnetic radiation is interposed between the electrically conductive support and the poled polymeric film. The transmission enhancement layer is an amorphous layer of at least 0.5 .mu.m in thickness having a refractive index less than that of the polymeric film and a resistance less than 10 times that of the polymeric film. The transmission enhancement layer being comprised of a mixture of (a) at least one metal oxide or fluoride and (b) a low molecular weight aromatic compound.
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公开(公告)号：US09974503B2
公开(公告)日：2018-05-22
申请号：US14131694
申请日：2012-06-12
CPC分类号： A61B6/463 , A61B6/032 , A61B6/4085 , A61B6/466 , A61B6/469 , A61B6/501 , A61B6/506 , A61B6/5217 , A61B6/5223 , G06T7/11 , G06T19/20 , G06T2200/04 , G06T2207/10081 , G06T2207/20044 , G06T2207/30172 , G06T2210/41 , G06T2219/2012
摘要： A method for displaying a paranasal sinus region of a patient is executed at least in part on a computer, acquiring volume image data of the paranasal sinus region of the patient, identifying one or more airways within the paranasal sinus region from the volume image data, displaying the at least one or more airways, and highlighting one or more portions of the displayed airways that are constricted below a predetermined value.
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公开(公告)号：US20140270440A1
公开(公告)日：2014-09-18
申请号：US13834758
申请日：2013-03-15
IPC分类号： G06T15/08
CPC分类号： G06T11/006 , A61B6/032 , A61B6/14 , A61B6/4085 , A61B6/4241 , A61B6/4441 , A61B6/482 , A61B6/501 , A61B6/5205 , A61B6/5258 , G06T2211/408 , G06T2211/424
摘要： A method for forming a three-dimensional reconstructed image acquires two dimensional measured radiographic projection images over a set of projection angles, wherein the measured projection image data is obtained from an energy resolving detector that distinguishes first and second energy bands. A volume reconstruction has image voxel values representative of the scanned object by back projection of the measured projection data. Volume reconstruction values are iteratively modified to generate an iterative reconstruction by repeating, for angles in the set of projection angles and for each of a plurality of pixels of the detector: generating a forward projection that includes calculating an x-ray spectral distribution at each volume voxel, calculating an error value by comparing the generated forward projection value with the corresponding measured projection image value, and adjusting one or more voxel values using the calculated error value and the x-ray spectral distribution. The generated iterative reconstruction displays.
摘要翻译： 用于形成三维重建图像的方法在一组投影角度上获取二维测量的放射线照相投影图像，其中所测量的投影图像数据从区分第一和第二能带的能量分辨检测器获得。 体积重建具有代表被扫描物体的图像体素值，通过反射投影测量的投影数据。 迭代修改体积重建值以通过对投影角度集合中的角度和对于检测器的多个像素中的每一个重复，来产生迭代重建：生成包括计算每个体积的X射线光谱分布的前向投影 通过将生成的前向投影值与对应的测量投影图像值进行比较来计算误差值，以及使用计算的误差值和x射线光谱分布来调整一个或多个体素值。 生成的迭代重建显示。
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公开(公告)号：US07453984B2
公开(公告)日：2008-11-18
申请号：US11334880
申请日：2006-01-19
申请人： Shoupu Chen , Jay S. Schildkraut , Lawrence A. Ray
发明人： Shoupu Chen , Jay S. Schildkraut , Lawrence A. Ray
CPC分类号： A61N5/1049 , A61N5/1067 , A61N2005/1061
摘要： A method for radiation therapy with target recognition has a first target identification system for obtaining first target characteristics within a patient's body. A second target identification system obtains second target characteristics within the body aided by the first target characteristics. A computation means for calculation of three-dimensional coordinates of the target region with respect to a three-dimensional radiotherapy system uses the second target characteristics. Irradiation means for radiotherapy mode adaptation is used in response to the second target characteristics and the calculation of three-dimensional coordinates of the target region.
摘要翻译： 具有目标识别的放射治疗方法具有用于获得患者体内第一目标特征的第一目标识别系统。 第二目标识别系统通过第一目标特征获得身体内的第二目标特征。 用于计算相对于三维放射治疗系统的目标区域的三维坐标的计算装置使用第二目标特征。 用于放射治疗模式适应的照射装置用于响应于第二目标特征和目标区域的三维坐标的计算。
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公开(公告)号：US06292574B1
公开(公告)日：2001-09-18
申请号：US08919560
申请日：1997-08-29
申请人： Jay S. Schildkraut , Robert T. Gray , Jiebo Luo
发明人： Jay S. Schildkraut , Robert T. Gray , Jiebo Luo
IPC分类号： G06K900
CPC分类号： G06K9/0061 , G06T7/0002 , G06T7/90 , G06T2207/10024 , G06T2207/30201 , G06T2207/30216 , H04N1/624
摘要： A computer program product for detecting eye color defects of a subject in an image due to flash illumination comprises: a computer readable storage medium having a computer program stored thereon for performing the steps of detecting skin colored regions in a digital image; searching the skin colored regions for groups of pixels with color characteristic of redeye defect; and correcting color of the pixels based on a location of redeye defect found in step (b).
摘要翻译： 一种用于检测由于闪光照明引起的图像中的被摄体的眼睛颜色缺陷的计算机程序产品，包括：计算机可读存储介质，其上存储有用于执行检测数字图像中的肤色区域的步骤的计算机程序; 在肤色区域搜索具有红眼缺陷颜色特征的像素组; 以及基于步骤（b）中发现的红眼缺陷的位置来校正像素的颜色。
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10.发明授权Multichannel optical waveguide page scanner with individually addressable electro-optic modulators 失效具有独立寻址电光调制器的多通道光波导页面扫描器
公开(公告)号：US5418871A
公开(公告)日：1995-05-23
申请号：US294688
申请日：1994-08-23
申请人： Joseph F. Revelli, Jr. , Alan C. G. Nutt , Jay S. Schildkraut , Eric J. Lim , David A. Roberts , David J. Williams , Douglas R. Robello , Thomas L. Penner , Sanwal Sarraf , Chih-Li Chuang
发明人： Joseph F. Revelli, Jr. , Alan C. G. Nutt , Jay S. Schildkraut , Eric J. Lim , David A. Roberts , David J. Williams , Douglas R. Robello , Thomas L. Penner , Sanwal Sarraf , Chih-Li Chuang
CPC分类号： B41J2/45 , G02B6/12004 , H04N1/036
摘要： A mulitchannel optical waveguide page scanner has a diode laser and a primary optical channel waveguide. Light is coupled from the diode into the primary channel waveguide. Multiple secondary side channels each have a thin-film electro-optic waveguide modulator. A series of T-branch connectors distribute light from the primary channel to the secondary side channels. Each of the electro-optic waveguide modulators is addressable individually.
摘要翻译： 多通道光波导页面扫描器具有二极管激光器和主光通道波导。 光从二极管耦合到主通道波导中。 多个次级侧通道各自具有薄膜电光波导调制器。 一系列T型分支连接器将光从主通道分配到次级侧通道。 每个电光波导调制器可单独寻址。
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