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公开(公告)号：US20080123912A1
公开(公告)日：2008-05-29
申请号：US11563016
申请日：2006-11-23
IPC分类号： G06K9/00
CPC分类号： G06T5/008 , G06T5/002 , G06T5/20 , G06T7/12 , G06T7/194 , G06T2207/10081 , G06T2207/10116 , G06T2207/30004
摘要： A process for purpose-specific enhancement filtering of anatomical data includes acts of selecting at least one specific purpose from a predetermined list of a plurality of analytical tools for anatomical data analysis and setting specific parameter values for the specific purpose. The process also includes acts of enhancing the anatomical data using a three-dimensional, segmentation-based filter, using the specific parameter values, to provide enhanced anatomical data and using the enhanced anatomical data for the selected specific purpose.
摘要翻译： 用于解剖数据的目的特异性增强过滤的过程包括从用于解剖数据分析的多个分析工具的预定列表中选择至少一个特定目的的动作，并为特定目的设置特定参数值。 该过程还包括使用基于三维分段的滤波器使用特定参数值来增强解剖数据的动作，以提供增强的解剖数据并使用用于所选特定目的的增强的解剖数据。
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公开(公告)号：US07623728B2
公开(公告)日：2009-11-24
申请号：US10708771
申请日：2004-03-24
申请人： Gopal B. Avinash , Rakesh Mohan Lal
发明人： Gopal B. Avinash , Rakesh Mohan Lal
CPC分类号： G06T5/002 , G06T7/194 , G06T2207/10088 , G06T2207/20012 , G06T2207/30004
摘要： A method and computer program product for processing a digital image is disclosed. A foreground region relating to an imaged object is estimated, a background region relating to other than the imaged object is estimated, and by using the image, the estimated foreground region and the estimated background region, a transition region disposed between the foreground region and the background region is calculated. The estimated foreground region, the estimated background region, and the calculated transition region, each include a separate set of pixels that may each be processed separately for suppressing pixel intensities in the estimated background region and improving image quality.
摘要翻译： 公开了一种用于处理数字图像的方法和计算机程序产品。 估计与成像对象相关的前景区域，估计与成像对象以外的背景区域，并且通过使用图像，估计的前景区域和估计的背景区域，设置在前景区域和前景区域之间的过渡区域 计算背景区域。 估计的前景区域，估计背景区域和计算出的过渡区域各自包括单独的像素集合，其可以分别被处理以抑制估计背景区域中的像素强度并提高图像质量。
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公开(公告)号：US07590306B2
公开(公告)日：2009-09-15
申请号：US10723791
申请日：2003-11-26
CPC分类号： G06T3/4084 , G06T5/002 , G06T5/003 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , G06T2207/30004
摘要： A technique is provided for improving digital images by analysis of the sampling rate of the image data. The optimal sampling rate is determined, such as based on the point-spread function of the imaging system, and is compared to the actual pixel sampling rate. Based upon the comparison, the image may be shrunk or sub-sampled to provide the optimal sampling rate that allows for optimal image filtering while accounting for inherent variations in spatial resolution of the images.
摘要翻译： 提供了通过分析图像数据的采样率来改善数字图像的技术。 确定最佳采样率，例如基于成像系统的点扩散功能，并将其与实际像素采样率进行比较。 基于比较，图像可以被收缩或次采样以提供允许最佳图像滤波的最佳采样速率，同时考虑图像的空间分辨率的固有变化。
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14.发明授权公开(公告)号：US07248749B2
公开(公告)日：2007-07-24
申请号：US10629155
申请日：2003-07-29
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T2207/10072 , G06T2207/10116 , G06T2207/10132 , G06T2207/20008 , G06T2207/20012 , G06T2207/30004
摘要： Certain embodiments of the present invention relate to a signal-to-noise ratio dependent image processing system. The method includes computing at least one SNR for at least one region of an image, determining a filter parameter for at least one region based on the at least one SNR, and processing at least one region of the image based on the filter parameter. In addition to SNR, a filter parameter may be determined using user preferences. The system includes a signal-to-noise ratio processor for determining a signal-to-noise ratio for an image. The system also includes a parameter selection unit for selecting at least one filter parameter based on the signal-to-noise ratio. The system further includes an image filter for filtering the image based on the filter parameter(s). In an embodiment, the SNR processor determines signal-to-noise ratio(s) for region(s) in the image.
摘要翻译： 本发明的某些实施例涉及一种信噪比依赖图像处理系统。 该方法包括为图像的至少一个区域计算至少一个SNR，基于至少一个SNR确定至少一个区域的滤波器参数，以及基于滤波器参数来处理图像的至少一个区域。 除了SNR之外，可以使用用户偏好来确定滤波器参数。 该系统包括用于确定图像的信噪比的信噪比处理器。 该系统还包括用于基于信噪比选择至少一个滤波器参数的参数选择单元。 该系统还包括用于基于滤波器参数来过滤图像的图像滤波器。 在一个实施例中，SNR处理器确定图像中的区域的信噪比。
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15.发明申请SYSTEMS, METHODS AND APPARATUS FOR TRACKING CHANGES IN AN OCULAR SCENE 审中-公开用于跟踪OCARAR场景变化的系统，方法和设备公开(公告)号：US20170055820A1
公开(公告)日：2017-03-02
申请号：US15245138
申请日：2016-08-23
申请人： Rakesh Mohan Lal
发明人： Rakesh Mohan Lal
CPC分类号： A61B3/0025 , A61B3/0041 , A61B3/14 , A61B5/0013 , A61B5/0022 , A61B2560/0233 , G02B7/102 , G02B15/14 , G06F19/00 , G16H40/67
摘要： Systems, methods and apparatus are provided through which in some aspects an ocular scene is imaged and changes in the ocular scene relative to a calibration image, are tracked. In one aspect, an imaging instrument includes an eyepiece, a light source operable to project light, an imaging system operable to image an ocular scene; and a processing system operable to receive a set of calibration images, and further operable to capture an image of the imaged ocular scene associated with a calibration image. In another aspect, a method to track changes in an ocular scene includes receiving a set of calibration images, receiving a set of landmarks on each calibration image, capturing a set of images of an ocular scene, associating each captured image with a calibration image, and detecting landmarks on each captured image wherein each detected landmark corresponds to a landmark on the associated calibration image.
摘要翻译： 提供了系统，方法和装置，通过该系统，方法和装置，在一些方面，对眼睛场景进行成像，并且跟踪相对于校准图像的眼睛场景的变化。 一方面，一种成像仪器包括目镜，可操作以投影光的光源，可操作以对眼睛场景进行成像的成像系统; 以及处理系统，其可操作以接收一组校准图像，并且还可操作以捕获与校准图像相关联的所成像的眼睛场景的图像。 另一方面，一种跟踪目镜场景变化的方法包括接收一组校准图像，在每个校准图像上接收一组地标，捕获一组眼睛场景的图像，将每个拍摄图像与校准图像相关联， 以及检测每个拍摄图像上的地标，其中每个检测到的地标对应于相关校准图像上的地标。
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公开(公告)号：US10098532B2
公开(公告)日：2018-10-16
申请号：US15245138
申请日：2016-08-23
申请人： Rakesh Mohan Lal
发明人： Rakesh Mohan Lal
摘要： Systems, methods and apparatus are provided through which in some aspects an ocular scene is imaged and changes in the ocular scene relative to a calibration image, are tracked. In one aspect, an imaging instrument includes an eyepiece, a light source operable to project light, an imaging system operable to image an ocular scene; and a processing system operable to receive a set of calibration images, and further operable to capture an image of the imaged ocular scene associated with a calibration image. In another aspect, a method to track changes in an ocular scene includes receiving a set of calibration images, receiving a set of landmarks on each calibration image, capturing a set of images of an ocular scene, associating each captured image with a calibration image, and detecting landmarks on each captured image wherein each detected landmark corresponds to a landmark on the associated calibration image.
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