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101. 发明授权

EP0736842B1 Image processing method and apparatus 失效
公开(公告)号：EP0736842B1
公开(公告)日：2003-12-17
申请号：EP96105000.2
申请日：1996-03-28
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Takeo, Hideya, c/o Fuji Photo Film Co., Ltd. , Yamada, Masahiko, c/o Fuji Photo Film Co., Ltd. , Nakajima, Nobuyoshi, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G06T5/40 , G06T5/30
CPC分类号： G06T7/0012 , G06K9/4609 , G06T5/004 , G06T5/008 , G06T5/30 , G06T7/0004 , G06T2207/10116 , G06T2207/20044 , G06T2207/30068

102. 发明公开

EP1365683A1 METHODS FOR IMPROVING VISUALIZATION OF MAGNETIC RESONANCE ANGIOGRAPHY DATA 审中-公开
标题翻译： VERFAHREN ZUR VERBESSERUNG DER VISUALISIERUNG VON ANGIOGRAPHISCHEN KERNSPINAUFNAHMEN
公开(公告)号：EP1365683A1
公开(公告)日：2003-12-03
申请号：EP02703337.2
申请日：2002-02-06
申请人： Epix Medical, Inc.
发明人： STEFANCIK, Robert, M. , EARNEST, Randy, J. , WEISSKOFF, Robert, M.
IPC分类号： A61B5/055
CPC分类号： G01R33/563 , A61B5/055 , G06T5/008 , G06T5/50 , G06T7/38 , G06T2207/10088 , G06T2207/30048 , G06T2207/30061 , G06T2207/30101
摘要： A method is provided for improved visualization of vascular structures contained within magnetic resonance angiograms, particularly steady-state contrast-enhanced magnetic resonance angiograms. The disclosed methods include manipulating the relative enhancement levels of the arterial and venous blood pools images with respect to each other and to the surrounding anatomy. This manipulation is meant to optimize visualization of one or both of the individual blood pools without the necessity of completely obscuring or removing the supporting information given by presentation of the other blood pool and/or the surrounding anatomy.
摘要翻译：提供了一种用于改善包含在磁共振血管造影图中的血管结构的可视化的方法，特别是稳态对比度增强的磁共振血管造影。所公开的方法包括操纵动脉和静脉血液池图像相对于彼此和周围解剖结构的相对增强水平。这种操作旨在优化单个血液池中的一个或两个的可视化，而不需要完全模糊或去除通过呈现其它血液池和/或周围解剖结构给出的支持信息。

103. 发明公开

EP1316919A3 Method for contrast-enhancement of digital portal images 有权
标题翻译： Methode zur Verbesserung des Kontrasts digitaler Portalbilder
公开(公告)号：EP1316919A3
公开(公告)日：2003-09-10
申请号：EP02079598.5
申请日：2002-11-04
申请人： EASTMAN KODAK COMPANY
发明人： Young, Susan S., Eastman Kodak Company , Moore, William E., Eastman Kodak Company , Foos, David H., Eastman Kodak Company
IPC分类号： G06T5/00 , G06T5/40
CPC分类号： G06T7/0012 , G06T5/008 , G06T5/40 , G06T7/12 , G06T7/194 , G06T2207/10116 , G06T2207/30004
摘要： A method for enhancing the image contrast of digital portal images for presentation on an output medium comprising: providing an input digital portal image having radiation and collimation fields; locating and labeling said radiation and collimation fields to produce labeled radiation and labeled collimation field images; designing a tone scale curve to display the image inside the radiation field using the full dynamic range of the output medium; applying said tone scale curve to the input digital portal image to produce a tone-scaled radiation field image, designing a tone scale curve to display the image outside the radiation field using the full dynamic range of said output medium; applying said tone scale curve to the input digital portal image to produce a tone-scaled collimation field image; enhancing the image contrast of said tone-scaled radiation field image and said tone-scaled collimation field image; combining said enhanced images using the labeled radiation and collimation field images; and black-surrounding the collimation field to produce a contrast enhancement output image which can be presented on said output medium.
摘要翻译：一种用于增强数字门户图像的图像对比度以便呈现在输出介质上的方法，包括：提供具有辐射和准直场的输入数字门户图像; 定位和标记所述辐射和准直场以产生标记的辐射和标记的准直场图像; 设计色阶曲线，使用输出介质的全动态范围显示辐射场内的图像; 将所述色阶曲线应用于输入数字门户图像以产生色调尺度的辐射场图像;设计色阶曲线以使用所述输出介质的全动态范围在辐射场外显示图像; 将所述色阶曲线应用于输入数字门户图像以产生色调缩放准直场图像; 增强所述色调幅射图像和所述色调缩放准直场图像的图像对比度; 使用标记的辐射和准直场图像组合所述增强图像; 以及围绕准直场的黑色，以产生可以在所述输出介质上呈现的对比度增强输出图像。

104. 发明公开

EP1295254A2 A GRAPHICS SYSTEM HAVING A SUPER-SAMPLED SAMPLE BUFFER WITH HOT SPOT CORRECTION, EDGE BLENDING, EDGE MATCHING, DISTORTION CORRECTION, AND CHROMATIC DISTORTION COMPENSATION 有权
标题翻译：具有热点校正，边缘混合，边缘匹配，畸变校正和色度失真补偿的超级采样示例缓冲器的图形系统
公开(公告)号：EP1295254A2
公开(公告)日：2003-03-26
申请号：EP01920476.7
申请日：2001-03-16
申请人： SUN MICROSYSTEMS, INC.
发明人： DEERING, Michael, F.
IPC分类号： G06T5/00
CPC分类号： G06T3/0081 , G06T5/006 , G06T5/008 , G06T5/20 , G06T5/50 , H04N9/3147 , H04N9/3185
摘要： A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field at which pixel values (e.g. red, green, blue) are computed. The pixel computation positions are selected to compensate for image distortions introduced by a display device and/or display surface. Non-uniformities in a viewer's perceived intensity distribution from a display surface (e.g. hot spots, overlap brightness) are corrected by appropriately scaling pixel values prior to transmission to display devices. Two or more sets of pixel calculation units driving two or more display devices adjust their respective pixel computation centers to align the edges of two or more displayed images. Physical barriers prevent light spillage at the interface between any two of the display images. Separate pixel computation positions may be used for distinct colors to compensate for color distortions.
摘要翻译：图形系统包括像素计算单元和存储样本的二维场的样本缓冲器。每个像素计算单元选择计算像素值（例如，红色，绿色，蓝色）的二维场中的位置。选择像素计算位置以补偿由显示装置和/或显示表面引入的图像失真。通过在传输到显示设备之前适当地缩放像素值来校正来自显示表面的观看者感知的强度分布中的不均匀性（例如热点，重叠亮度）。驱动两个或更多个显示设备的两组或更多组像素计算单元调整它们各自的像素计算中心以对齐两个或更多个显示图像的边缘。物理屏障可防止任何两个显示图像之间的界面处的光溢出。分离的像素计算位置可以用于不同的颜色以补偿颜色失真。

105. 发明公开

EP1256907A9 Retrospective correction of inhomogeneities in radiographs 有权
标题翻译：在X光片的不均匀性的回顾性改善
公开(公告)号：EP1256907A9
公开(公告)日：2003-01-15
申请号：EP01000142.8
申请日：2001-05-10
申请人： AGFA-GEVAERT
发明人： Dewaele, Piet
IPC分类号： G06T5/40
CPC分类号： G06T5/40 , G06T5/008 , G06T7/11 , G06T7/143 , G06T2207/10116 , G06T2207/30004
摘要： Several methods for retrospective correction of intensity inhomogeneites in digital diagnostic radiation images are presented. The methods are based on the correction of a digital image representation by means of a bias field. The bias field is deduced from the digital image representation of the diagnostic radiation image.

106. 发明公开

EP1181576A1 A METHOD FOR CALCULATING GAIN CORRECTION FACTORS IN A DIGITAL IMAGING SYSTEM 审中-公开
标题翻译：程序对计算VERSTÄRKUNGSKORREKTIONSFAKTOREN数字图像系统
公开(公告)号：EP1181576A1
公开(公告)日：2002-02-27
申请号：EP00926123.1
申请日：2000-04-18
申请人： Direct Radiography Corp.
发明人： RODICKS, Brian , HOFFBERG, Michael , WILLIAMS, Cornell
IPC分类号： G01T1/16
CPC分类号： G01T1/16 , G06T5/008 , H04N5/325 , H04N5/365
摘要： A method for developing a set of gain correction coefficients corrected for structural noise to be used in correcting the digital values representing an image captured by a pixelated detector having a plurality of individual sensors. The gain correction coefficients are developed by first obtaining a first set gain correction coefficients using a flat exposure and adjusting the individual sensor gain output so that all sensors produce the same output value, and then applying a smoothing filter to the first set of gain correction coefficients to obtain a new set of corrected gain correction coefficients.

107. 发明公开

EP1146479A2 Image processing method and apparatus 失效
标题翻译：图像处理方法和装置
公开(公告)号：EP1146479A2
公开(公告)日：2001-10-17
申请号：EP01112795.8
申请日：1996-03-28
申请人： Fuji Photo Film Co., Ltd.
发明人： Yamada, Masahiko, c/o Fuji Photo Film Co., Ltd. , Yamada, Masahiko, c/o Fuji Photo Film Co.,Ltd.
IPC分类号： G06T5/20
CPC分类号： G06T7/0012 , G06K9/4609 , G06T5/004 , G06T5/008 , G06T5/30 , G06T7/0004 , G06T2207/10116 , G06T2207/20044 , G06T2207/30068
摘要： An operation of an iris filter is carried out on an original image signal representing an image, and the degree of centralization of gradients of the original image signal with respect to a picture element is thereby calculated, each of picture elements constituting the image being taken as the picture element. An image portion, which is associated with a high degree of centralization, in the image is detected in accordance with the calculated degree of centralization. Image emphasis processing is then selectively carried out on the detected image portion. Alternatively, a morphology operation is carried out on an original image signal Dorg by using a multiply structure element Bi and a scale factor λ , and a morphology signal Dmor is thereby obtained. The morphology signal Dmor represents whether each of picture elements constituting the image is or is not the one corresponding to an image portion, at which the original image signal Dorg fluctuates in a spatially narrower range than the multiply structure element Bi. Image emphasis processing is then carried out on the original image signal Dorg and in accordance with the morphology signal Dmor.
摘要翻译：对代表图像的原始图像信号执行虹膜滤波器的操作，并且由此计算原始图像信号相对于图像元素的梯度的集中程度，构成图像的每个图像元素被取为图片元素。根据计算出的集中度来检测图像中与高度集中关联的图像部分。然后选择性地对检测到的图像部分执行图像强调处理。或者，通过使用多重结构元素Bi和比例因子λ对原始图像信号Dorg执行形态学操作，从而获得形态信号Dmor。形态学信号Dmor表示构成图像的每个图像元素是否是与原始图像信号Dorg在空间上比多重结构元素Bi在空间上更窄的范围内波动的图像部分对应的图像元素。然后对原始图像信号Dorg并根据形态学信号Dmor执行图像加重处理。

108. 发明公开

EP1134697A2 Image processing method and apparatus 失效
标题翻译： Bildverarbeitungsverfahren und -Vorrichtung
公开(公告)号：EP1134697A2
公开(公告)日：2001-09-19
申请号：EP01112797.4
申请日：1996-03-28
申请人： Fuji Photo Film Co., Ltd.
发明人： Yamada, Masahiko, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G06T5/20
CPC分类号： G06T7/0012 , G06K9/4609 , G06T5/004 , G06T5/008 , G06T5/30 , G06T7/0004 , G06T2207/10116 , G06T2207/20044 , G06T2207/30068
摘要： An operation of an iris filter is carried out on an original image signal representing an image, and the degree of centralization of gradients of the original image signal with respect to a picture element is thereby calculated, each of picture elements constituting the image being taken as the picture element. An image portion, which is associated with a high degree of centralization, in the image is detected in accordance with the calculated degree of centralization. Image emphasis processing is then selectively carried out on the detected image portion. Alternatively, a morphology operation is carried out on an original image signal Dorg by using a multiply structure element Bi and a scale factor λ , and a morphology signal Dmor is thereby obtained. The morphology signal Dmor represents whether each of picture elements constituting the image is or is not the one corresponding to an image portion, at which the original image signal Dorg fluctuates in a spatially narrower range than the multiply structure element Bi. Image emphasis processing is then carried out on the original image signal. Dorg and in accordance with the morphology signal Dmor.
摘要翻译：对代表图像的原始图像信号执行虹膜滤波器的操作，由此计算原始图像信号相对于像素的梯度的集中度，构成图像的每个图像元素被视为图片元素。根据计算的集中度来检测图像中与高度集中化相关联的图像部分。然后在检测到的图像部分上选择性地执行图像强调处理。或者，通过使用多重结构元素Bi和比例因子λ对原始图像信号Dorg进行形态学运算，从而获得形态信号Dmor。形态信号Dmor表示构成图像的每个图像元素是否是与原始图像信号Dorg在比乘法结构元素Bi在空间上较窄的范围内波动的图像部分对应的图像元素。然后对原始图像信号进行图像强调处理。 Dorg并根据形态信号Dmor。

109. 发明公开

EP1093295A2 Image processing device and image processing method 审中-公开
标题翻译： Bildverarbeitungsvorrichtung und -verfahren
公开(公告)号：EP1093295A2
公开(公告)日：2001-04-18
申请号：EP00121400.6
申请日：2000-10-13
申请人： Riso Kagaku Corporation
发明人： Nakajima, Masato, Riso Kagaku Corp., R&D Center
IPC分类号： H04N1/407
CPC分类号： G06T5/40 , G06T5/008 , G06T2207/20012 , G06T2207/20021 , H04N1/4072
摘要： In an image processing device (1), when receiving image data transferred from, for example a digital camera through an image input section (11), the region division section (13) divides the image data into a plurality of blocks having optimum sizes according to a degree of a similarity between density histograms of the blocks. A contrast enhancement section (14)obtains an optimum clip value per divided block and then obtains a density conversion curve based on the density histogram of the block including a target pixel by using the clip value in order to perform the density conversion for all of the pixels optimally. The image data that have been enhanced in contrast are compensated by a read compensation section (15) according to a property of a printing device (3) and then printed on a paper sheet.
摘要翻译：在图像处理装置（1）中，当从例如数字照相机通过图像输入部（11）接收的图像数据接收时，区域分割部（13）将图像数据分割为具有最佳尺寸的多个块到块的密度直方图之间的相似程度。对比度增强部分（14）获得每个分割块的最佳剪辑值，然后通过使用剪辑值来获得基于包括目标像素的块的浓度直方图的密度转换曲线，以便对所有像素最佳。相对于增强的图像数据由读取补偿部（15）根据打印装置（3）的属性来补偿，然后印刷在纸张上。

110. 发明公开

EP1045340A2 Image processing method and apparatus 失效
公开(公告)号：EP1045340A2
公开(公告)日：2000-10-18
申请号：EP00111106.1
申请日：1996-03-28
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Nakajima, Nobuyoshi, c/o Fuji Photo Film Co.Ltd.
IPC分类号： G06T5/40
CPC分类号： G06T7/0012 , G06K9/4609 , G06T5/004 , G06T5/008 , G06T5/30 , G06T7/0004 , G06T2207/10116 , G06T2207/20044 , G06T2207/30068
摘要： An operation of an iris filter is carried out on an original image signal representing an image, and the degree of centralization of gradients of the original image signal with respect to a picture element is thereby calculated, each of picture elements constituting the image being taken as the picture element. An image portion, which is associated with a high degree of centralization, in the image is detected in accordance with the calculated degree of centralization. Image emphasis processing is then selectively carried out on the detected image portion. Alternatively, a morphology operation is carried out on an original image signal Dorg by using a multiply structure element Bi and a scale factor λ, and a morphology signal Dmor is thereby obtained. The morphology signal Dmor represents whether each of picture elements constituting the image is or is not the one corresponding to an image portion, at which the original image signal Dorg fluctuates in a spatially narrower range than the multiply structure element Bi. Image emphasis processing is then carried out on the original image signal Dorg and in accordance with the morphology signal Dmor.

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