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1. 发明申请

WO2003046794A3 HANDLING OF IMAGE DATA CREATED BY MANIPULATION OF IMAGE DATA SETS 审中-公开
公开(公告)号：WO2003046794A3
公开(公告)日：2003-06-05
申请号：PCT/GB2002/005108
申请日：2002-11-13
申请人： VOXAR LIMITED , TURNER, David, N. , BISSEL, Andrew, John , BARISH, Matthew , MOFFETT, Richard , PAPAGEORGIOU, Pavlos
发明人： TURNER, David, N. , BISSEL, Andrew, John , BARISH, Matthew , MOFFETT, Richard , PAPAGEORGIOU, Pavlos
IPC分类号： G06F19/00
摘要： A computer program product for image manipulation of a source data set, the product being operable to: load a source data set, for example of voxel data, for image manipulation by the computer program product; generate and display image data of the source data set by allowing interactive user adjustment of a plurality of operational state conditions; and store the image data of a currently displayed image together with operational state data corresponding to at least a subset of its current operational state conditions in a standard image data format, such as DICOM. Storing operational state data with the image data allows a user later to reload the image data and return the computer program's other important configuration settings, so that a user can seamlessly continue with an interrupted session, either on the same workstation, or on a different workstation at a remote location. This is a major improvement for medical imaging applications, since hospital networks are generally incapable of supporting general-purpose file transfer.

2. 发明申请

WO2002084594A2 CORRECTION OF BOUNDARY ARTEFACTS IN IMAGE DATA PROCESSING 审中-公开
标题翻译：边界条件在图像数据处理中的校正
公开(公告)号：WO2002084594A2
公开(公告)日：2002-10-24
申请号：PCT/GB2002/000768
申请日：2002-02-21
申请人： VOXAR LIMITED , PAPAGEORGIOU, Pavlos , POOLE, Ian
发明人： PAPAGEORGIOU, Pavlos , POOLE, Ian
IPC分类号： G06T5/30
CPC分类号： G06T5/30 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104
摘要： An image processing system is described in which sets of image elements having display values outside of a target range B of display values are each respectively morphologically dilated. The intersection between the morphologically dilated sets of image elements is then identified and those image elements within the intersecting region are removed from the set of image elements having the target range B of display values. This removes image elements incorrectly appearing to have display values corresponding to the target range B of display values due to aliasing effect between regions of image elements having display values either side of the target range B of imaging may be two-dimensional or three-dimensional imaging. The morphologically dilatation is preferably performed with a quasi-circular or a quasi-spherical structuring element having a radius of between two and three voxels.
摘要翻译：描述了一种图像处理系统，其中分别在显示值的目标范围B之外的显示值的图像元素组分别形态地扩大。然后识别形态扩张的图像元素集合之间的交集，并且从具有显示值的目标范围B的图像元素集合中去除交叉区域内的那些图像元素。这样除去由于具有显示值的图像元素的区域之间的混叠效应而与显示值的目标范围B相对应的显示值不正确地出现的图像元素可以是二维或三维成像。形态学上的扩张优选用具有半径在二和三个体素之间的准圆形或准球形结构元件进行。

3. 发明申请

WO2006056741A1 VOLUME RENDERING APPARATUS AND METHOD 审中-公开
标题翻译：体积渲染装置和方法
公开(公告)号：WO2006056741A1
公开(公告)日：2006-06-01
申请号：PCT/GB2005/004345
申请日：2005-11-11
申请人： VOXAR LIMITED , DAY, Tim , PAPAGEORGIOU, Pavlos , CRAYFORD, Dominic
发明人： DAY, Tim , PAPAGEORGIOU, Pavlos , CRAYFORD, Dominic
IPC分类号： G06T15/00
CPC分类号： G06T15/08 , G06T2200/28 , G06T2210/41
摘要： An apparatus and method for rendering multiplanar reformatting (MPR) images of volume data to be displayed to a user. The apparatus may comprise a conventional personal computer system having a central processing unit (CPU) coupled to a system memory for storing the volume data and a graphics processing unit (GPU) having a GPU memory connected to the computer bus. The computer system CPU is configured to predict an MPR image which may be required for display at a future time and to identify blocks of voxels comprising the volume data which will be needed to render the predicted MPR image. The CPU is further operable to retrieve these blocks from the system memory and to queue them for transfer to the GPU memory. The transfer of blocks from the queue to the GPU memory is controlled by a scheduler such that at least some of the queued blocks are transferred to the GPU memory prior to the predicted MPR image becoming required for display. The GPU retrieves blocks from the GPU memory and renders corresponding image parts for assembly into the predicted MPR image should it become required for display.
摘要翻译：一种用于将用于显示的卷数据的多平面重新格式化（MPR）图像进行渲染的装置和方法。该装置可以包括具有耦合到用于存储音量数据的系统存储器的中央处理单元（CPU）的传统个人计算机系统和具有连接到计算机总线的GPU存储器的图形处理单元（GPU）。计算机系统CPU被配置为预测可能需要在未来时间显示的MPR图像，并且识别包括将要用于呈现预测的MPR图像的体数据的体素块。 CPU进一步可操作以从系统存储器检索这些块并将其排队以传送到GPU存储器。将块从队列传送到GPU存储器由调度器控制，使得在预测的MPR图像变得需要显示之前，排队的块中的至少一些被传送到GPU存储器。如果需要显示，GPU将从GPU存储器中检索块，并将相应的图像部件组合到预测的MPR图像中。

4. 发明申请

WO2006003358A1 IMAGING VOLUME DATA 审中-公开
标题翻译：成像量数据
公开(公告)号：WO2006003358A1
公开(公告)日：2006-01-12
申请号：PCT/GB2005/001947
申请日：2005-05-18
申请人： VOXAR LIMITED , MURRAY, Benjamin, Alan, Kerr , PAPAGEORGIOU, Pavlos , SMOUT, Andrew, Michael, Christian
发明人： MURRAY, Benjamin, Alan, Kerr , PAPAGEORGIOU, Pavlos , SMOUT, Andrew, Michael, Christian
IPC分类号： G06T15/20
CPC分类号： G06T15/08
摘要： A method and apparatus for generating a two-dimensional output image of a slab multi-planar reformatting (MPR) volume data set from a selectable view point and view direction is described. The method comprises factorising a view transform matrix into an intermediate transform matrix and a warp transform matrix. The intermediate transform matrix is such that voxels in the volume data set map to pixels in an intermediate image in which neighbouring voxels in a plane of the volume data set which is most parallel to tie plane of the output image are separated by an integer number of pixel along each of tie axes of the intermediate image. The intermediate transform matrix is applied to the data set to provide an intermediate data set. A projection of the intermediate data set along the view direction is performed according to a desired projection algorithm to provide the intermediate image. The warp transform matrix is then applied to the intermediate image to provide the output image.
摘要翻译：描述了用于从可选择的视点和视图方向生成平板多平面重新格式化（MPR）体数据集的二维输出图像的方法和装置。该方法包括将视图变换矩阵分解为中间变换矩阵和经线变换矩阵。中间变换矩阵使得体数据集中的体素映射到中间图像中的像素，其中体积数据集的平行于输出图像的平面的平面中的相邻体素被分隔为整数像素沿着中间图像的每个连接轴。将中间变换矩阵应用于数据集以提供中间数据集。根据期望的投影算法执行沿着视图方向的中间数据集的投影以提供中间图像。然后将翘曲变换矩阵应用于中间图像以提供输出图像。

5. 发明申请

WO2003046794A2 HANDLING OF IMAGE DATA CREATED BY MANIPULATION OF IMAGE DATA SETS 审中-公开
标题翻译：通过图像数据集的处理创建的图像数据的处理
公开(公告)号：WO2003046794A2
公开(公告)日：2003-06-05
申请号：PCT/GB2002/005108
申请日：2002-11-13
申请人： VOXAR LIMITED , TURNER, David, N. , BISSEL, Andrew, John , BARISH, Matthew , MOFFETT, Richard , PAPAGEORGIOU, Pavlos
发明人： TURNER, David, N. , BISSEL, Andrew, John , BARISH, Matthew , MOFFETT, Richard , PAPAGEORGIOU, Pavlos
IPC分类号： G06F19/00
CPC分类号： G06F19/321 , G06F19/00
摘要： A computer program product for image manipulation of a source data set, the product being operable to: load a source data set, for example of voxel data, for image manipulation by the computer program product; generate and display image data of the source data set by allowing interactive user adjustment of a plurality of operational state conditions; and store the image data of a currently displayed image together with operational state data corresponding to at least a subset of its current operational state conditions in a standard image data format, such as DICOM. Storing operational state data with the image data allows a user later to reload the image data and return the computer program's other important configuration settings, so that a user can seamlessly continue with an interrupted session, either on the same workstation, or on a different workstation at a remote location. This is a major improvement for medical imaging applications, since hospital networks are generally incapable of supporting general-purpose file transfer.
摘要翻译：一种用于源数据集的图像处理的计算机程序产品，所述产品可操作用于：加载诸如体素数据的源数据集，以用于所述计算机程序产品的图像操作; 通过允许交互式用户调整多个操作状态条件来生成和显示源数据集的图像数据; 并且将当前显示的图像的图像数据与其当前操作状态条件的至少一个子集对应的操作状态数据存储在诸如DICOM的标准图像数据格式中。使用图像数据存储操作状态数据允许用户稍后重新加载图像数据并返回计算机程序的其他重要配置设置，使得用户可以在同一工作站上或在不同工作站上无缝地继续中断的会话在偏远的地方。这是医学影像应用的重大改进，因为医院网络通常不能支持通用文件传输。

6. 发明授权

EP1272978B1 IMAGING VOLUME DATA 有权
标题翻译：图片数据量
公开(公告)号：EP1272978B1
公开(公告)日：2003-09-17
申请号：EP01917336.8
申请日：2001-04-06
申请人： Voxar Limited
发明人： BISSELL, Andrew, John , PAPAGEORGIOU, Pavlos
IPC分类号： G06T15/00 , G06T15/20
CPC分类号： G06T15/08

7. 发明公开

EP1272978A1 IMAGING VOLUME DATA 有权
标题翻译：成像体积数据
公开(公告)号：EP1272978A1
公开(公告)日：2003-01-08
申请号：EP01917336.8
申请日：2001-04-06
申请人： Voxar Limited
发明人： BISSELL, Andrew, John , PAPAGEORGIOU, Pavlos
IPC分类号： G06T15/00 , G06T15/20
CPC分类号： G06T15/08
摘要： A computer program and a computer-implemented system and method for generating a two-dimensional image of a volume data set representing an object volume from a selectable viewpoint. An object volume data set includes voxel values ordered by voxels along a row that extends in a first direction, rows across a plane that extends in the first direction and a second direction, and planes through an object volume that extend in the first and second directions and a third direction. In response to the definition of a view vector defining a view direction with respect to a viewpoint, shear and warp mappings are determined, as is which of the first, second and third directions is closest to the view vector. Pixels of a two-dimensional sheared image having a plurality of lines of pixels are then determined from voxel values of the object volume data set identified by the shear mapping. Where the view vector is closest to the first direction, the shear mapping maps rows of voxels in the first direction onto lines of pixels of the sheared image. An output image is then determined by mapping pixels of the sheared image according to the warp mapping. This output image can be displayed, printed, sent to a remote location or otherwise communicated to a user.
摘要翻译：一种用于从可选择的视点生成表示对象体积的体数据集的二维图像的计算机程序和计算机实现的系统和方法。对象体积数据集包括体素值，其由沿着在第一方向上延伸的行的体素排序，横跨在第一方向和第二方向上延伸的平面上的行以及穿过在第一和第二方向上延伸的对象体积的平面和第三方向。响应于定义相对于视点的视图方向的视图矢量的定义，确定剪切和翘曲映射，如第一，第二和第三方向中的哪一个最接近视图矢量。然后从由剪切映射识别的对象体数据集的体素值确定具有多行像素的二维剪切图像的像素。在视图向量最接近第一方向的情况下，剪切映射将第一方向上的体素行映射到剪切图像的像素线上。然后根据弯曲映射通过映射剪切图像的像素来确定输出图像。此输出图像可以显示，打印，发送到远程位置或以其他方式传达给用户。

8. 发明授权

EP1380011B1 CORRECTION OF BOUNDARY ARTEFACTS IN IMAGE DATA PROCESSING 有权
标题翻译：兰德公司的纠正措施伪影图像数据处理
公开(公告)号：EP1380011B1
公开(公告)日：2006-10-18
申请号：EP02712107.8
申请日：2002-02-21
申请人： Voxar Limited
发明人： PAPAGEORGIOU, Pavlos , POOLE, Ian
IPC分类号： G06T5/30
CPC分类号： G06T5/30 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104
摘要： An image processing system is described in which sets of image elements having display values outside of a target range B of display values are each respectively morphologically dilated. The intersection between the morphologically dilated sets of image elements is then identified and those image elements within the intersecting region are removed from the set of image elements having the target range B of display values. This removes image elements incorrectly appearing to have display values corresponding to the target range B of display values due to aliasing effect between regions of image elements having display values either side of the target range B of imaging may be two-dimensional or three-dimensional imaging. The morphologically dilatation is preferably performed with a quasi-circular or a quasi-spherical structuring element having a radius of between two and three voxels.

9. 发明公开

EP1380011A2 CORRECTION OF BOUNDARY ARTEFACTS IN IMAGE DATA PROCESSING 有权
标题翻译：兰德公司的纠正措施伪影图像数据处理
公开(公告)号：EP1380011A2
公开(公告)日：2004-01-14
申请号：EP02712107.8
申请日：2002-02-21
申请人： Voxar Limited
发明人： PAPAGEORGIOU, Pavlos , POOLE, Ian
IPC分类号： G06T5/30
CPC分类号： G06T5/30 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104
摘要： An image processing system is described in which sets of image elements having display values outside of a target range B of display values are each respectively morphologically dilated. The intersection between the morphologically dilated sets of image elements is then identified and those image elements within the intersecting region are removed from the set of image elements having the target range B of display values. This removes image elements incorrectly appearing to have display values corresponding to the target range B of display values due to aliasing effect between regions of image elements having display values either side of the target range B of imaging may be two-dimensional or three-dimensional imaging. The morphologically dilatation is preferably performed with a quasi-circular or a quasi-spherical structuring element having a radius of between two and three voxels.

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