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公开(公告)号：US20080181478A1
公开(公告)日：2008-07-31
申请号：US12022732
申请日：2008-01-30
IPC分类号： G06K9/00
CPC分类号： G06K9/40 , G06K2209/05 , G06T5/002 , G06T5/10 , G06T5/50 , G06T2207/10072 , G06T2207/20064
摘要： An image processing apparatus includes a storing section which stores data of a digital image, a rotation processing section which generates a plurality of rotated digital images having different rotation angles from the digital image, an image processing section which generates a plurality of image-processed digital images from the rotated digital images, a reverse processing section which generates a plurality of reversed digital images from the image-processed digital images, and a combining section which combines the reversed digital images into one digital image.
摘要翻译： 一种图像处理装置，包括存储数字图像数据的存储部分，从数字图像生成具有不同旋转角度的多个旋转数字图像的旋转处理部分，产生多个图像处理数字 来自旋转的数字图像的图像，从图像处理的数字图像生成多个反转的数字图像的反向处理部分，以及将反转的数字图像组合成一个数字图像的组合部分。
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公开(公告)号：US08126288B2
公开(公告)日：2012-02-28
申请号：US12022732
申请日：2008-01-30
CPC分类号： G06K9/40 , G06K2209/05 , G06T5/002 , G06T5/10 , G06T5/50 , G06T2207/10072 , G06T2207/20064
摘要： An image processing apparatus includes a storing section which stores data of a digital image, a rotation processing section which generates a plurality of rotated digital images having different rotation angles from the digital image, an image processing section which generates a plurality of image-processed digital images from the rotated digital images, a reverse processing section which generates a plurality of reversed digital images from the image-processed digital images, and a combining section which combines the reversed digital images into one digital image.
摘要翻译： 图像处理装置包括存储数字图像数据的存储部分，从数字图像生成具有不同旋转角度的多个旋转数字图像的旋转处理部分，产生多个图像处理数字 来自旋转的数字图像的图像，从图像处理的数字图像生成多个反转的数字图像的反向处理部分，以及将反转的数字图像组合成一个数字图像的组合部分。
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公开(公告)号：US07420176B2
公开(公告)日：2008-09-02
申请号：US11244283
申请日：2005-10-06
申请人： Nobutoku Motomura , Hisato Maeda
发明人： Nobutoku Motomura , Hisato Maeda
IPC分类号： G21G4/00
CPC分类号： A61B6/12 , A61B5/4839 , A61B6/037 , G01T1/1647
摘要： A SPECT apparatus has a two-dimensional detector that detects radiations from RIs in a patient via a collimator. A correction processing unit corrects plural two-dimensional projection distributions with different projection angles, which are detected by the detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances, respectively. Consequently, a fall in spatial resolution having dependency on distances between the respective RIs and the detector is reduced. A reconfiguring unit reconfigures a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
摘要翻译： SPECT装置具有二维检测器，其通过准直器检测来自患者的RI的辐射。 校正处理单元分别根据对应于多个距离的多个校正功能，在三维频率空间上校正由检测器检测到的具有不同投影角度的多个二维投影分布。 因此，降低了依赖于相应的RI和检测器之间的距离的空间分辨率的下降。 重新配置单元从修正的多个二维投影分布重新配置三维RI分布。
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公开(公告)号：US20060078082A1
公开(公告)日：2006-04-13
申请号：US11244283
申请日：2005-10-06
申请人： Nobutoku Motomura , Hisato Maeda
发明人： Nobutoku Motomura , Hisato Maeda
IPC分类号： H05G1/60
CPC分类号： A61B6/12 , A61B5/4839 , A61B6/037 , G01T1/1647
摘要： A SPECT apparatus has a two-dimensional detector that detects radiations from RIs in a patient via a collimator. A correction processing unit corrects plural two-dimensional projection distributions with different projection angles, which are detected by the detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances, respectively. Consequently, a fall in spatial resolution having dependency on distances between the respective RIs and the detector is reduced. A reconfiguring unit reconfigures a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
摘要翻译： SPECT装置具有二维检测器，其通过准直器检测来自患者的RI的辐射。 校正处理单元分别根据对应于多个距离的多个校正功能，在三维频率空间上校正由检测器检测到的具有不同投影角度的多个二维投影分布。 因此，降低了依赖于相应的RI和检测器之间的距离的空间分辨率的下降。 重新配置单元从修正的多个二维投影分布重新配置三维RI分布。
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5.发明申请公开(公告)号：US20100284584A1
公开(公告)日：2010-11-11
申请号：US12682900
申请日：2008-08-06
申请人： Hisato Maeda , Noriyasu Yamaki
发明人： Hisato Maeda , Noriyasu Yamaki
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , A61B6/037 , G06T5/10 , G06T2207/10104 , G06T2207/10108 , G06T2207/20056 , G06T2207/30048 , G06T2207/30096
摘要： An image processing apparatus includes: a cutoff frequency table storing information on a relation between a parameter related to a radial intensity distribution of two-dimensional frequency components of a projection image and a Butterworth filter cutoff frequency to be applied to the projection image concerned; a projection image data input unit for inputting projection image data; an FFT unit for applying a two-dimensional Fourier transform to the projection image to obtain a spatial frequency of the projection image; a radial intensity distribution calculation unit for calculating a radial intensity distribution of frequency components of the projection image; a cutoff frequency setting unit for setting a cutoff frequency corresponding to a parameter related to the radial intensity distribution determined for the projection image, with reference to the cutoff frequency table; and a Butterworth filter for filtering the projection image data with the set cutoff frequency.
摘要翻译： 一种图像处理装置包括：截止频率表，其存储关于投影图像的二维频率分量的径向强度分布的参数与要应用于投影图像的巴特沃斯滤波截止频率之间的关系的信息; 投影图像数据输入单元，用于输入投影图像数据; FFT单元，用于对投影图像应用二维傅立叶变换以获得投影图像的空间频率; 径向强度分布计算单元，用于计算投影图像的频率分量的径向强度分布; 截止频率设定单元，参照截止频率表，设定与对投影图像确定的径向强度分布有关的参数对应的截止频率; 以及用于利用设定的截止频率对投影图像数据进行滤波的巴特沃斯滤波器。
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公开(公告)号：US20080091102A1
公开(公告)日：2008-04-17
申请号：US11857307
申请日：2007-09-18
申请人： Hisato Maeda , Noriyasu Yamaki
发明人： Hisato Maeda , Noriyasu Yamaki
IPC分类号： A61B6/00
CPC分类号： A61B6/5247 , A61B5/055 , A61B6/00 , A61B6/037 , A61B6/583 , G06T5/002 , G06T2207/10104 , G06T2207/10108 , G06T2207/30048 , G06T2207/30096
摘要： An image processing apparatus (1) comprises: a projection image data input unit (10) for inputting nuclear medicine image data; a Butterworth filter (12) for filtering the nuclear medicine image data; and a cutoff frequency setting unit (20) for setting a cutoff frequency of the Butterworth filter (12). The cutoff frequency setting unit (20) has an optimum cutoff frequency table (22) storing a relation between counts in nuclear medicine image data and an optimum cutoff frequency. The image processing apparatus (1) determines counts in the nuclear medicine image data, determines based on the optimum cutoff frequency table (22) a cutoff frequency corresponding to the determined counts, and sets a cutoff frequency of the Butterworth filter (12) at the determined cutoff frequency.
摘要翻译： 一种图像处理装置（1）包括：投影图像数据输入单元（10），用于输入核医学图像数据; 用于过滤核医学图像数据的巴特沃斯滤波器（12）; 以及用于设定巴特沃斯滤波器（12）的截止频率的截止频率设定单元（20）。 截止频率设定单元（20）具有存储核医学图像数据的计数与最佳截止频率的关系的最佳截止频率表（22）。 图像处理设备（1）确定核医学图像数据中的计数，基于最佳截止频率表（22）确定与确定的计数相对应的截止频率，并将巴特沃斯滤波器（12）的截止频率设置在 确定截止频率。
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