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公开(公告)号：US07463760B2
公开(公告)日：2008-12-09
申请号：US11827922
申请日：2007-07-12
IPC分类号： G06K9/00
CPC分类号： G06K9/4633 , A61B6/502 , G06K9/3233 , G06K9/4638 , G06K9/56 , G06K2209/05 , G06T7/0012
摘要： An algorithm is quickly scans a digital image volume to detect density nodules. A first stage is based on a transform to quickly highlight regions requiring further processing. The first stage operates with somewhat lower sensitivity than is possible with more detailed analyses, but operates to highlight regions for further analysis and processing. The transform dynamically adapts to various nodule sizes through the use of radial zones. A second stage uses a detailed gradient distribution analysis that only operates on voxels that pass a threshold of the first stage.
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公开(公告)号：US07397937B2
公开(公告)日：2008-07-08
申请号：US10261182
申请日：2002-09-30
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06F19/00 , G06F19/321 , G06K9/342 , G06K2009/00932 , G06K2209/05 , G06T7/11 , G06T7/187 , G06T2207/10081 , G06T2207/20156 , G06T2207/30061 , G06T2207/30064 , G06T2207/30101 , G16H15/00 , G16H50/20
摘要： A region-growing method for identifying nodules in an anatomical volume segments a 3-D image volume by controlled voxel growth from seed points. The process is based on creation and use of a distance map for tracking the distance of vessel voxels from a predetermined location. A volume map is created that identifies the largest sphere that can pass between a voxel and a predetermined location without touching a non-vessel voxel. The ratio between the distance map and the volume map is analyzed to find regions more likely to contain nodules, the features of which can be extracted or otherwise highlighted.
摘要翻译： 用于鉴定解剖体积中的结节的区域生长方法通过从种子点的受控体素生长来分割3-D图像体积。 该过程基于创建和使用距离图来跟踪血管体素与预定位置的距离。 创建体积图，其识别可以在体素与预定位置之间通过的最大球体，而不触及非血管体素。 分析距离图与体积图之间的比例，以发现更可能包含结节的区域，其特征可被提取或突出显示。
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公开(公告)号：US20080166032A1
公开(公告)日：2008-07-10
申请号：US12031449
申请日：2008-02-14
IPC分类号： A61B5/00
CPC分类号： G06K9/00 , G06K2209/05 , Y10S128/922
摘要： A CAD system pre-analyzes a medical image to automatically determine whether contrast agent was introduced into the patient before forming that image. In one embodiment, contrast agent detection is performed by comparing the voxel values in known blood-containing areas to voxel values of known water-containing areas, and if there is a substantial difference above a preferred threshold, then it is determined that this patient was indeed injected with the contrast agent. Upon finding that the patient was indeed injected with contrast agent, the CAD algorithm then automatically performs both a detection algorithm that uses the contrast agent and one that does not and notifies the clinician that both sets of results are available to look at. However, if it is determined that the patient was, not injected with contrast agent, the CAD algorithm does not perform the algorithm that uses the contrast agent does not give the user the option to view any results from such algorithm. The invention may be practiced with a variety of imaging technologies some of which may not require an explicit comparison of the voxel values from the blood-containing and water-containing areas.
摘要翻译： CAD系统预先分析医学图像以自动确定在形成该图像之前是否将造影剂引入患者体内。 在一个实施例中，通过将已知含血区域的体素值与已知含水区域的体素值进行比较来进行造影剂检测，并且如果在优选阈值之上存在显着差异，则确定该患者是 确实注射了造影剂。 当发现患者确实注射造影剂时，CAD算法然后自动执行使用造影剂的检测算法，而不是通过临床医生通知两组结果可用于检查。 然而，如果确定患者没有注射造影剂，则CAD算法不执行使用造影剂的算法不会给予用户从该算法查看任何结果的选项。 本发明可以用各种成像技术来实施，其中一些可能不需要来自含血液和含水区域的体素值的显式比较。
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公开(公告)号：US06909797B2
公开(公告)日：2005-06-21
申请号：US09993792
申请日：2001-11-23
IPC分类号： A61B6/00 , A61B6/03 , G06F3/033 , G06F3/048 , G06K9/32 , G06K9/46 , G06K9/56 , G06T7/00 , G06T11/00 , G06T15/08 , G06K9/00
CPC分类号： G06F3/0481 , A61B6/032 , A61B6/466 , A61B6/502 , G06F3/04855 , G06F2203/04805 , G06K9/3233 , G06K9/4638 , G06K9/56 , G06K2209/05 , G06T7/0012 , G06T15/08
摘要： An algorithm is quickly scans a digital image volume to detect density nodules. A first stage is based on a transform to quickly highlight regions requiring further processing. The first stage operates with somewhat lower sensitivity than is possible with more detailed analyses, but operates to highlight regions for further analysis and processing. The transform dynamically adapts to various nodule sizes through the use of radial zones. A second stage uses a detailed gradient distribution analysis that only operates on voxels that pass a threshold of the first stage.
摘要翻译： 一种算法是快速扫描数字图像体积以检测密度结节。 第一阶段是基于快速突出需要进一步处理的区域的变换。 第一阶段的操作灵敏度低于可能进行更详细分析的灵敏度，但可以突出区域进行进一步的分析和处理。 该变换通过使用径向区域动态地适应于各种结节尺寸。 第二阶段使用详细的梯度分布分析，其仅对通过第一阶段的阈值的体素进行操作。
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5.发明授权Method and system for computer-aided lesion detection using information from multiple images 有权使用多幅图像信息进行计算机辅助病变检测的方法和系统
公开(公告)号：US6075879A
公开(公告)日：2000-06-13
申请号：US178901
申请日：1998-10-26
CPC分类号： G06F19/321 , G06F19/3406 , G06F19/345 , G06T7/0012 , H05G1/60 , G06T2207/30068 , Y10S128/922
摘要： A system, method, and computer program product for computer-aided detection of suspicious lesions in digital mammograms is described, wherein single-view feature vectors from a first digital mammogram are processed in a classification algorithm along with information computed from a plurality of related digital mammograms to assign an overall probability of suspiciousness to potentially suspicious lesions in the first digital mammogram. In one preferred embodiment, a greater probability of suspiciousness is determined where there are similar corresponding lesions in the first digital mammogram and in an alternate digital mammogram view of the same breast. In another preferred embodiment, a lesser probability of suspiciousness is found where there are symmetric lesions or structures located in the first digital mammogram and a digital mammogram of the opposite breast. In another preferred embodiment, a lesser probability of suspiciousness is found where there are similar lesions or structures located in the first digital mammogram and a digital mammogram of the same breast taken months or years earlier in time. In another preferred embodiment, the nipple location, which serves as a reference location point across different digital mammogram, is located using an algorithm that takes into account the chest wall, the skin line of the breast, and the general orientation of the fibrous breast tissue in the digital mammogram relative to the chest wall.
摘要翻译： 描述了一种用于数字乳腺X线照片中可疑病变的计算机辅助检测的系统，方法和计算机程序产品，其中来自第一数字乳腺X线照片的单视图特征向量与分类算法一起被处理，以及从多个相关数字 乳房X光检查图将第一次数字乳腺X线照片中的潜在可疑病变的整体可疑性分配给患者。 在一个优选实施例中，确定在第一数字乳房X线照片和相同乳房的替代数字乳房X线照片视图中存在相似的相应损伤的可疑性的可能性更大。 在另一个优选实施例中，发现存在位于第一数字乳房X线照片中的对称损伤或结构和相对乳房的数字乳房X线照片的可疑性较小的可能性。 在另一个优选实施例中，发现在第一数字乳腺X线照片中存在类似的损伤或结构的同时存在数月或数年前同一乳房的数字乳腺X线照片的可疑性较小。 在另一个优选实施例中，用作穿过不同数字乳腺X线照片的参考位置点的乳头位置使用考虑胸壁，乳房皮肤线以及纤维性乳房组织的总体取向的算法来定位 在数字乳腺X线照相中相对于胸壁。
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6.发明授权Method and system for automatic identification and orientation of medical images 有权医学图像自动识别和定向的方法和系统公开(公告)号：US08897564B2
公开(公告)日：2014-11-25
申请号：US11634434
申请日：2006-12-05
CPC分类号： G06T7/0042 , G06F19/00 , G06T7/0012 , G06T7/73 , G06T2207/30068
摘要： A method and system for computer-aided detection of abnormal lesions in digital mammograms is described, wherein digital films are processed using an automated and computerized method of detecting the order and orientation of a set of films. In one embodiment, anatomic features are used to detect the order, orientation and identification of a film series. In another embodiment of the invention, a technologist feeds films into the system in any order and orientation. After processing, the system provides an output on a display device to a radiologist that is in an order and orientation preferred by the radiologist. In yet another embodiment of the invention, films from one case are distinguished from films of another case. In this manner and through the use of a bulk loader, a large number of films can be stacked together and fed into the system at one time.
摘要翻译： 描述了一种用于计算机辅助检测数字乳腺X线照片中的异常病变的方法和系统，其中使用检测一组膜的顺序和取向的自动化和计算机化方法处理数字膜。 在一个实施例中，解剖特征用于检测胶片系列的顺序，取向和识别。 在本发明的另一个实施例中，技术人员以任何顺序和方向将胶片送入系统。 在处理之后，系统将显示设备上的输出提供给放射科医师的放射科医师，该放射科医师处于放射科医师优选的顺序和取向。 在本发明的另一个实施例中，来自一种情况的膜与另一种情况的膜不同。 以这种方式并通过使用散装装载机，可以将大量的薄膜堆叠在一起并一次进入系统。
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7.发明申请BUFFER MANAGEMENT FOR AN ADAPTIVE BUFFER VALUE USING ACCUMULATION AND AVERAGING 有权使用累积和平均的自适应缓冲器值的缓冲管理公开(公告)号：US20080298696A1
公开(公告)日：2008-12-04
申请号：US11755646
申请日：2007-05-30
CPC分类号： H04N5/772 , H04N5/23245 , H04N5/23248 , H04N5/907
摘要： An optical imaging system with dynamic buffer management is described. Embodiments of the optical imaging system include an image sensor, a buffer, and a buffer mode controller. The image sensor includes a pixel array to read out a plurality of pixel lines for a frame of an image. The buffer is configured to store a plurality of buffer values corresponding to a plurality of pixel values for each of the pixel lines. The buffer mode controller is configured to dynamically switch between an accumulation mode and an averaging mode. The accumulation mode facilitates a computation of each buffer value according to a sum value of the corresponding pixel value and a corresponding previous buffer value. The averaging mode facilitates a computation of each buffer value according to an average value of a normalized value of the corresponding pixel value and the corresponding previous buffer value.
摘要翻译： 描述了具有动态缓冲器管理的光学成像系统。 光学成像系统的实施例包括图像传感器，缓冲器和缓冲模式控制器。 图像传感器包括用于读出用于图像帧的多个像素线的像素阵列。 缓冲器被配置为存储与每个像素线对应的多个像素值的多个缓冲器值。 缓冲模式控制器被配置为在累加模式和平均模式之间动态切换。 累加模式有助于根据相应像素值和对应的先前缓冲器值的和值来计算每个缓冲器值。 平均模式有助于根据对应的像素值和对应的先前缓冲器值的归一化值的平均值来计算每个缓冲器值。
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公开(公告)号：US07346202B1
公开(公告)日：2008-03-18
申请号：US10998238
申请日：2004-11-24
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06K2209/05 , Y10S128/922
摘要： A CAD system pre-analyzes a medical image to automatically determine whether contrast agent was introduced into the patient before forming that image. In one embodiment, contrast agent detection is performed by comparing the voxel values in known blood-containing areas to voxel values of known water-containing areas, and if there is a substantial difference above a preferred threshold, then it is determined that this patient was indeed injected with the contrast agent. Upon finding that the patient was indeed injected with contrast agent, the CAD algorithm then automatically performs both a detection algorithm that uses the contrast agent and one that does not and notifies the clinician that both sets of results are available to look at. However, if it is determined that the patient was not injected with contrast agent, the CAD algorithm does not perform the algorithm that uses the contrast agent does not give the user the option to view any results from such algorithm. The invention may be practiced with a variety of imaging technologies some of which may not require an explicit comparison of the voxel values from the blood-containing and water-containing areas.
摘要翻译： CAD系统预先分析医学图像以自动确定在形成该图像之前是否将造影剂引入患者体内。 在一个实施例中，通过将已知含血区域的体素值与已知含水区域的体素值进行比较来进行造影剂检测，并且如果在优选阈值之上存在显着差异，则确定该患者是 确实注射了造影剂。 当发现患者确实注射造影剂时，CAD算法然后自动执行使用造影剂的检测算法，而不是通过临床医生通知两组结果可用于检查。 然而，如果确定患者没有注射造影剂，则CAD算法不执行使用造影剂的算法不给予用户从该算法查看任何结果的选项。 本发明可以用各种成像技术来实施，其中一些可能不需要来自含血液和含水区域的体素值的显式比较。
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公开(公告)号：US07286695B2
公开(公告)日：2007-10-23
申请号：US11087820
申请日：2005-03-23
IPC分类号： G06K9/00
CPC分类号： G06K9/4633 , A61B6/502 , G06K9/3233 , G06K9/4638 , G06K9/56 , G06K2209/05 , G06T7/0012
摘要： An algorithm is quickly scans a digital image volume to detect density nodules. A first stage is based on a transform to quickly highlight regions requiring further processing. The first stage operates with somewhat lower sensitivity than is possible with more detailed analyses, but operates to highlight regions for further analysis and processing. The transform dynamically adapts to various nodule sizes through the use of radial zones. A second stage uses a detailed gradient distribution analysis that only operates on voxels that pass a threshold of the first stage.
摘要翻译： 一种算法是快速扫描数字图像体积以检测密度结节。 第一阶段是基于快速突出需要进一步处理的区域的变换。 第一阶段的操作灵敏度低于可能进行更详细分析的灵敏度，但可以突出区域进行进一步的分析和处理。 该变换通过使用径向区域动态地适应于各种结节尺寸。 第二阶段使用详细的梯度分布分析，其仅对通过第一阶段的阈值的体素进行操作。
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10.发明授权Buffer management for an adaptive buffer value using accumulation and averaging 有权使用累加和平均的自适应缓冲区值的缓冲区管理公开(公告)号：US07974489B2
公开(公告)日：2011-07-05
申请号：US11755646
申请日：2007-05-30
CPC分类号： H04N5/772 , H04N5/23245 , H04N5/23248 , H04N5/907
摘要： An optical imaging system with dynamic buffer management is described. Embodiments of the optical imaging system include an image sensor, a buffer, and a buffer mode controller. The image sensor includes a pixel array to read out a plurality of pixel lines for a frame of an image. The buffer is configured to store a plurality of buffer values corresponding to a plurality of pixel values for each of the pixel lines. The buffer mode controller is configured to dynamically switch between an accumulation mode and an averaging mode. The accumulation mode facilitates a computation of each buffer value according to a sum value of the corresponding pixel value and a corresponding previous buffer value. The averaging mode facilitates a computation of each buffer value according to an average value of a normalized value of the corresponding pixel value and the corresponding previous buffer value.
摘要翻译： 描述了具有动态缓冲器管理的光学成像系统。 光学成像系统的实施例包括图像传感器，缓冲器和缓冲模式控制器。 图像传感器包括用于读出用于图像帧的多个像素线的像素阵列。 缓冲器被配置为存储与每个像素线对应的多个像素值的多个缓冲器值。 缓冲模式控制器被配置为在累加模式和平均模式之间动态切换。 累加模式有助于根据相应像素值和对应的先前缓冲器值的和值来计算每个缓冲器值。 平均模式有助于根据对应的像素值和对应的先前缓冲器值的归一化值的平均值来计算每个缓冲器值。
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