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1. 发明申请

WO1997010568A1 METHOD AND DEVICE FOR IMAGING THE INTERIOR OF A TURBID MEDIUM 审中-公开
标题翻译：用于成像涡轮介质内部的方法和装置
公开(公告)号：WO1997010568A1
公开(公告)日：1997-03-20
申请号：PCT/IB1996000870
申请日：1996-08-29
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB
发明人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB , COLAK, Sel, Brian
IPC分类号： G06T05/20
CPC分类号： G06T11/008 , G01N21/4795 , G06T2211/421 , G06T2211/424
摘要： A method and device of imaging an interior of a turbid medium is disclosed for reconstruction of biomedical images. The method starts with a simple back-projection algorithm to get a first image. Then in next steps this image is corrected by deconvolution with a spatially varying convolution function. This convolution function is based on the scattering and/or absorption coefficients of the turbid medium and the propagation of the light in the turbid medium. A second correction approach is obtained by means of a coordinate transformation. Advantages of the method according to the invention are that the method is rather easy to implement, the method needs only a few iteration steps to obtain corrected images and the method does not suffer from instability problems.
摘要翻译：公开了用于重建生物医学图像的用于对混浊介质的内部进行成像的方法和装置。该方法从简单的反投影算法开始以获得第一个图像。然后在接下来的步骤中，该图像通过具有空间变化的卷积函数的去卷积来校正。该卷积函数基于混浊介质的散射和/或吸收系数以及在混浊介质中的光的传播。通过坐标变换获得第二校正方法。根据本发明的方法的优点是该方法相当容易实现，该方法仅需要几个迭代步骤来获得校正图像，并且该方法不会遇到不稳定性问题。

2. 发明申请

WO1997003414A1 METHOD FOR PROCESSING A NOISY DIGITAL IMAGE SOURCE SEQUENCE 审中-公开
标题翻译：用于处理噪声数字图像源序列的方法
公开(公告)号：WO1997003414A1
公开(公告)日：1997-01-30
申请号：PCT/FR1996001033
申请日：1996-07-03
申请人： KHIPLUS , BRICOURT, Ricardo
发明人： KHIPLUS
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： A method for processing a damaged digital image source sequence to give a corrected digital image output sequence. The method comprises, for each damaged digital image (31) in the source sequence (2), calculating (21, 22, 23) three parameters for estimating the correction to be made in each pixel of the damaged image, the first parameter (P1) being, in particular, a function of all the pixels in a reference image (32), whereas the second parameter (P2) is, in particular, a function of the pixels (44) adjacent to a predetermined pixel (41), and the third parameter (P3) is, in particular, a function of the pixel (42) in the reference image (32) having the same spatial co-ordinates (x, y) as said predetermined pixel (41); calculating (24) a correction coefficient (C) for each predetermined pixel (41) in the damaged image (31) by combining the first, second and third parameters (P1, P2, P3); and correcting (25) each predetermined pixel (41) in the damaged image (31), in particular according to the correction coefficient (C).
摘要翻译：一种用于处理损坏的数字图像源序列以给出校正的数字图像输出序列的方法。该方法包括对于源序列（2）中的每个损坏的数字图像（31），计算（21,22,23）三个参数，用于估计在损坏图像的每个像素中进行的校正，第一参数（P1 ）特别是参考图像（32）中的所有像素的功能，而第二参数（P2）特别是与预定像素（41）相邻的像素（44）的函数，以及特别地，第三参数（P3）具有与所述预定像素（41）相同的空间坐标（x，y）的参考图像（32）中的像素（42）的函数。通过组合第一，第二和第三参数（P1，P2，P3）来计算（24）损坏图像（31）中的每个预定像素（41）的校正系数（C）; 并且特别地根据校正系数（C）校正（25）损坏图像（31）中的每个预定像素（41）。

3. 发明申请

WO1998024059A1 MULTIPLE MODE DIGITAL X-RAY IMAGING SYSTEM 审中-公开
标题翻译：多模式数字X射线成像系统
公开(公告)号：WO1998024059A1
公开(公告)日：1998-06-04
申请号：PCT/US1997021685
申请日：1997-11-26
申请人： VARIAN ASSOCIATES, INC.
发明人： VARIAN ASSOCIATES, INC. , COLBETH, Richard, E. , PAVOKOVICH, John, M. , SEPPI, Edward, J. , SHAPIRO, Edward, G.
IPC分类号： G06T05/20
CPC分类号： A61B6/00 , A61B6/5235 , H04N5/217 , H04N5/32 , H04N5/347 , H04N5/367
摘要： A multiple mode digital X-ray imaging system providing for preprocessing "binning" of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits, the previously summed pixel charges (by rows) on a column-by-column basis. An array, or mapping, of "defective pixel" flags is used to identify defective pixels within the detector array, with such flags being added to, or inserted into, the incoming data stream for dynamic processing along with the incoming pixel data. A buffer and filter is used to perform still image capture during the radiographic mode of operation and to recursively filter incoming data frames during the fluoroscopic mode of operation by summing a scaled amount of pixel data from prior data frames with a scaled amount of incoming pixel data from the present data frame.
摘要翻译：一种多模式数字X射线成像系统，其通过在检测器阵列内通过在检测器阵列内逐行求和相邻像素电荷并在检测器阵列内进行选择性求和来预处理来自检测器阵列的模拟像素信号“ 读出电路，先前相加的像素电荷（按行）逐列。使用“缺陷像素”标志的阵列或映射来识别检测器阵列内的有缺陷的像素，其中这些标记被附加到输入数据流中或插入到输入数据流中，以便与输入像素数据一起进行动态处理。使用缓冲器和滤波器在放射线照相操作模式下执行静态图像捕获，并且在荧光镜操作模式期间递归滤波输入数据帧，通过将来自先前数据帧的像素数据的缩放量与输入像素数据的标度量相加从当前的数据帧。

4. 发明申请

WO1997034256A1 AN IMAGE PROCESSING METHOD AND SYSTEM 审中-公开
标题翻译：图像处理方法和系统
公开(公告)号：WO1997034256A1
公开(公告)日：1997-09-18
申请号：PCT/DK1997000109
申请日：1997-03-12
申请人： PHASE ONE DENMARK A/S , KNUDSEN, Niels, V. , OSTER, Jan, F.
发明人： PHASE ONE DENMARK A/S
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： An image processing method and system for interrelated adjustement of brightness and resolution of an image that is produced from a digital image are provided whereby, for example, the intensity of light illuminating an object to be recorded by an electronic camera can be reduced significantly compared to the intensity requirements of known methods and systems. According to the invention, a photographer can adjust resolution and sensitivity of a digital image to correspond to the light sensitivity of a specific photographic film by selection of a light sensitivity parameter of the photographic film in question, e.g. by selection of an ASA value, a DIN value, an ISO value, etc. Thus, a photographer may select a light sensitivity parameter value equal to 400 ASA. Then, the photographer can use a light meter to indicate pairs of exposure time and diaphragm settings for the electronic camera that will ensure a correct exposure of the digital image when the light meter is set to indicate correct pairs of exposure time and diaphrag, settings for a camera with a 400 ASA photographic film.
摘要翻译：提供了一种用于从数字图像产生的图像的亮度和分辨率的相关调整的图像处理方法和系统，其中例如可以显着降低由电子照相机照亮要记录的对象的光的强度，与已知方法和系统的强度要求。根据本发明，摄影者可以通过选择所涉及的摄影胶片的光敏度参数来调节数字图像的分辨率和灵敏度，以对应于特定摄影胶卷的光敏度。通过选择ASA值，DIN值，ISO值等。因此，拍摄者可以选择等于400AAS的光敏度参数值。然后，摄影师可以使用光度计来指示电子照相机的曝光时间和光圈设置，这将确保数字图像的正确曝光，当光度计设置为指示正确的曝光时间和光圈对时，设置为一台带有ASA摄影胶片的相机。

5. 发明申请

WO1995008815A1 IMAGE MIRRORING AND IMAGE EXTENSION FOR DIGITAL FILTERING 审中-公开
标题翻译：用于数字滤波的图像反射和图像扩展
公开(公告)号：WO1995008815A1
公开(公告)日：1995-03-30
申请号：PCT/CA1994000525
申请日：1994-09-22
申请人： GENESIS MICROCHIP INC. , GREGGAIN, Lance , MANDL, Peter
发明人： GENESIS MICROCHIP INC.
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： In a multi-rate digital signal processing system for re-sizing an image in at least two segments using at least two symmetric T-tap digital filters each having T kernel-function weighting coefficients, where T is an odd plural integer, a first one of the segments being characterized by a first plurality of unfiltered pixels and second adjacent one of the segments being characterized by a second plurality of unfiltered pixels, a predetermined one of the unfiltered pixels being common to both the first and the second plurality at the image boundary of the two segments, the improvement comprising a method of seamlessly extending the image across the image boundary, comprising the steps of multiplying the (T-1)/2 of the first plurality and the second plurality of the unfiltered pixels adjacent the predetermined one of the pixels by two times respective ones of the kernel function weighting coefficients for generating the first and second mirrored half kernel intermediate multiplication products; multiplying the predetermined one of the pixels by a centre-tap kernel-function weighting coefficient of the digital filter to generate an additional intermediate multiplication product; adding the first mirrored half-kernel intermediate multiplication products and the additional intermediate multiplication product to generate a first segment estimated boundary filtered output pixel; adding the second mirrored half-kernel intermediate multiplication products and the additional intermediate multiplication product to generate a second segment estimated boundary filtered output pixel; and averaging the first segment estimated boundary filtered output pixel and the segment.
摘要翻译：在多速率数字信号处理系统中，使用至少两个对称T抽头数字滤波器来对至少两个段中的图像进行尺寸调整，每个具有T个核函数加权系数的T抽头数字滤波器，其中T是奇数多个整数，第一个所述段的特征在于第一多个未过滤的像素，并且所述段中的第二相邻的一个由第二多个未过滤的像素表征，所述未滤波像素中的预定的一个在图像边界处对于第一和第二多个共同所述改进包括一种使图像跨越图像边界无缝扩展的方法，包括以下步骤：将第一多个的（T-1）/ 2和与预定的像素乘以两倍的核函数加权系数，用于产生第一和第二镜像半核中间乘法管道; 将预定的一个像素乘以数字滤波器的中心抽头核函数加权系数，以产生附加的中间乘法乘积; 添加第一镜像半核中间乘法乘积和附加中间乘法乘积以产生第一段估计边界滤波输出像素; 添加第二镜像半核中间乘法乘积和附加中间乘法乘积以生成第二段估计的边界滤波输出像素; 并且对第一段估计的边界滤波输出像素和段进行平均。

6. 发明申请

WO1998030975A1 METHOD AND DEVICE FOR PROCESSING ANALOG SIGNALS 审中-公开
标题翻译：方法和设备模拟信号处理
公开(公告)号：WO1998030975A1
公开(公告)日：1998-07-16
申请号：PCT/DE1997003025
申请日：1997-12-29
申请人： INSTITUT FÜR MIKROELEKTRONIK STUTTGART , APEL, Uwe , HÖFFLINGER, Bernd , SEGER, Ulrich
发明人： INSTITUT FÜR MIKROELEKTRONIK STUTTGART
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： The invention relates to a method for processing analog image signals comprised of time discrete browsable image points in a lattice arrangement, whereby a resistive network - the so-called electronic retina - is used as well as a bi-dimensional field structure, the number of lines m of which is lower than the number of lines p of the image point network. The image signals consisting of image points are transferred as follows: the transfer to the electronic retina is made starting from the first line of image points until the image signals from the m-th line of the image point network has been transferred to the m-th line of the electronic retina, the image points of the m+1 line of the image point network being again transferred to the electronic retina starting from the first line, and this until the p-th line of the image point network, due to this rotation, has been transferred to the electronic retina, and in such a way that, in each interval between two sequential transfer processes of image signals to the electronic retina, the lines of said retina are read out through an autonomous signal line, without the transfer process being affected.
摘要翻译：用于图像信号的模拟信号处理的方法将在离散的时间被描述可扫描，使用电阻网络，即所谓的电子视网膜，具有二维阵列结构，行数m是小于行P的像素阵列的数目，阵列状排列的图像点，其中一个这样的线通过从电子视网膜像素与像素的第一行开始的图像信号的线传输进行在电子视网膜直到第一行转印的图像信号的，来自像素阵列的第m行的图像信号的传输之后，开始再次从第一行到所述电子视网膜的第m线传送，第m + 1 .-行中的像素阵列到电子视网膜直到第p个的像素阵列的一个滚动的方式行上的像素被转移到电子视网膜未每个z那擦拭图像信号的两个相继的轧制传送操作到电子视网膜，视网膜的行而不会影响转印处理，通过独立的信号线读出。

7. 发明申请

WO1998007117A1 LARGE KERNEL FILTERING USING A FIXED-SIZE BLOCK PROCESSOR 审中-公开
标题翻译：使用固定尺寸块处理器进行大型KERNEL过滤
公开(公告)号：WO1998007117A1
公开(公告)日：1998-02-19
申请号：PCT/US1996017634
申请日：1996-10-31
申请人： POLAROID CORPORATION
发明人： POLAROID CORPORATION , WOBER, Munib, A.
IPC分类号： G06T05/20
CPC分类号： G06T5/20 , H04N19/176 , H04N19/48 , H04N19/60 , H04N19/80
摘要： A method and system for filtering a digital image with a filter larger than the hardware capabilities of the imaging system is workable by subdividing the large filter into a number of small filters which can each be individually processed by the system. The method includes the steps of: segmenting the digital image into data blocks of a predetermined size; overlapping adjacent data blocks by a predetermined number of pixels; providing a preselected filter kernel; generating small filters by processing a preselected group of components of the filter kernal; applying each of the small filters to each overlapped data block to produce component data blocks; and merging and saving the component data blocks into filtered data blocks according to a predetermined specific criteria, whereby the filtered data blocks represent the filtered digital image.
摘要翻译：使用大于成像系统的硬件能力的滤波器对数字图像进行滤波的方法和系统可通过将大滤波器细分成多个可由系统单独处理的小滤波器来实现。该方法包括以下步骤：将数字图像分割成预定尺寸的数据块; 将相邻数据块重叠预定数量的像素; 提供预选的滤芯; 通过处理过滤器内核的预选组件来产生小过滤器; 将每个小滤波器应用于每个重叠的数据块以产生分量数据块; 并且根据预定的特定标准将分量数据块合并并保存到经滤波的数据块中，由此滤波的数据块表示滤波的数字图像。

8. 发明申请

WO1997045809A1 METHOD OF IMPROVING A DIGITAL IMAGE 审中-公开
标题翻译：改进数字图像的方法
公开(公告)号：WO1997045809A1
公开(公告)日：1997-12-04
申请号：PCT/US1997007996
申请日：1997-05-08
申请人： SCIENCE AND TECHNOLOGY CORP.
发明人： SCIENCE AND TECHNOLOGY CORP. , RAHMAN, Zia-ur , JOBSON, Daniel, J. , WOODELL, Glenn, A.
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： A method of improving a digital image is provided. The image is initially represented by digital data indexed to represent positions on a display. The digital data is indicative of an intensity value Ii(x,y) for each position (x,y) in each i-th spectral band. The intensity value for each position in each i-th spectral band is adjusted to generate an adjusted intensity value for each position in equation (I), each i-th spectral band in accordance with where S is the number of unique spectral bands included in said digital data, Wn is a weighting factor and "*" denotes the convolution operator. Each surround function Fn(x,y) is uniquely scaled to improve an aspect of the digital image, e.g., dynamic range compression, color constancy, and lightness rendition. The adjusted intensity value for each position in each i-th spectral band is filtered with a common function and then presented to a display device. For color images, a novel color restoration step is added to give the image true-to-life color that closely matches human observation.
摘要翻译：提供了一种改善数字图像的方法。该图像最初由被索引以表示显示器上的位置的数字数据表示。数字数据表示每个第i个频谱带中每个位置（x，y）的强度值I i（x，y）。调整每个第i个频谱带中每个位置的强度值，以生成等式（I）中每个位置的调整强度值，每个第i个频谱带，其中S是包括在所述数字数据Wn是权重因子，“*”表示卷积运算符。每个环绕功能Fn（x，y）被唯一地缩放以改善数字图像的一个方面，例如动态范围压缩，颜色恒定性和亮度再现。每个第i个频谱带中每个位置的调整强度值用公共功能进行滤波，然后呈现给显示装置。对于彩色图像，添加了一种新颖的颜色恢复步骤来给出与人类观察紧密匹配的图像真实颜色。

9. 发明申请

WO1997034257A1 METHOD AND APPARATUS FOR PIXEL LEVEL LUMINANCE ADJUSTMENT 审中-公开
标题翻译：像素水平调制的方法和装置
公开(公告)号：WO1997034257A1
公开(公告)日：1997-09-18
申请号：PCT/US1996016105
申请日：1996-10-08
申请人： POLAROID CORPORATION
发明人： POLAROID CORPORATION , WOBER, Munib, A. , HAJJAHMAD, Ibrahim
IPC分类号： G06T05/20
CPC分类号： G06T5/20
摘要： A method for adjusting the luminance IMHI of pixels in a high resolution image includes first forming a low resolution image of the original by grouping pixels into superpixels such as 8x8 blocks. A low resolution luminance correction value delta LO is determined for each superpixel by comparing the luminance of the superpixel to both a predetermined darkness threshold TD and a predetermined brightness threshold TB. The low resolution luminance correction value delta LO is modified to yield delta 'LO for each superpixel by forming islands of the superpixels and smoothing delta LO between superpixels within each island. Finally, a high resolution luminance correction value delta HI is calculated for each pixel of the original high resolution image by comparing the luminance IMHI of each pixel to both TD and TB, keeping in mind that delta HI is generated through a series of mathematical computations as a function of both the pixel luminance IMHI and the low resolution luminance correction value delta LO. Each pixel of the original image is adjusted by the corresponding high resolution luminance correction value delta HI and a luminance adjusted image is produced.
摘要翻译：用于调整高分辨率图像中的像素的亮度的方法包括首先通过将像素分组成诸如8×8块的超像素来形成原稿的低分辨率图像。通过将超像素的亮度与预定的暗度阈值TD和预定亮度阈值TB进行比较来为每个超级像素确定低分辨率亮度校正值ΔL0。修改低分辨率亮度校正值ΔLL以通过在每个岛内的超像素之间形成岛并在每个岛之间的超像素之间平滑ΔLL来为每个超级像素产生δ'LO。最后，通过将每个像素的亮度IMHI与TD和TB进行比较来计算原始高分辨率图像的每个像素的高分辨率亮度校正值ΔH，同时记住通过一系列数学计算产生ΔHI作为像素亮度IMHI和低分辨率亮度校正值ΔLA两者的函数。通过对应的高分辨率亮度校正值ΔHI来调整原始图像的每个像素，并且产生亮度调节图像。

10. 发明申请

WO1997023844A1 DIRECTIONAL ADAPTIVE NOISE REDUCTION 审中-公开
标题翻译：方向自适应噪声减少
公开(公告)号：WO1997023844A1
公开(公告)日：1997-07-03
申请号：PCT/IB1996001429
申请日：1996-12-13
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS PATENTVERWALTUNG GMBH , PHILIPS NORDEN AB
发明人： PHILIPS ELECTRONICS N.V. , PHILIPS PATENTVERWALTUNG GMBH , PHILIPS NORDEN AB , FUDERER, Miha , AACH, Til , KUNZ, Dietmar, Wilhelm
IPC分类号： G06T05/20
CPC分类号： G06T5/20 , G01R33/5608
摘要： An image is processed taking into account the direction of a predominant structure of the image. Said predominant direction is derived from image information in the image. In particular, according to the invention the covariance matrix having matrix elements depending on products of differences between pixel-values in separate directions is calculated. The eigenvectors of the covariance matrix correspond with the predominant direction of the image structure and the eigenvalues of the covariance matrix represent the strength of the structure in the image. The covariance matrix is computed locally, i.e. for separate regions in the images so as to take variations of the direction of predominant structures into account.
摘要翻译：考虑到图像的主要结构的方向来处理图像。所述主要方向来源于图像中的图像信息。特别地，根据本发明，计算具有取决于分离方向上的像素值之间的差异的乘积的矩阵元素的协方差矩阵。协方差矩阵的特征向量与图像结构的主要方向对应，协方差矩阵的特征值表示图像中结构的强度。局部计算协方差矩阵，即为图像中的单独区域计算，以便考虑主要结构方向的变化。

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