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1.发明授权Method and apparatus for projecting diagnostic images from volumed diagnostic data accessed in data tubes 失效用于从数据管中访问的压缩诊断数据投影诊断图像的方法和装置
公开(公告)号：US5280428A
公开(公告)日：1994-01-18
申请号：US914175
申请日：1992-07-14
CPC分类号： H05G1/26 , G01R33/56 , G06T15/08 , G06T15/20 , G06T19/20 , G06T2210/41 , G06T2219/2016
摘要： A computer program for manipulating diagnostic images obtained with computed tomography or magnetic resonance systems stores acquired voxel data in addresses in an electronic memory related to the spatial location of the voxels. Sample lines are identified in the space of the voxels and interpolated values are determined for points along these sample lines by accessing the volume data in the electronic memory as a "tube" which includes voxel data having spatial coordinates which vary only in the dimension of the sample line. The tube of data may be more easily accessed from the electronic memory than would a series of random accesses and also allows the sharing of interpolation calculations for the interpolated points along the sample lines.
摘要翻译： 用于操纵用计算机断层摄影或磁共振系统获得的诊断图像的计算机程序将获取的体素数据存储在与体素的空间位置相关的电子存储器中的地址中。 在体素的空间中识别样本线，并且通过以电子存储器中的体数据访问电子存储器中的体积数据来确定沿着这些采样线的点的内插值，该“管”包括体素数据，其具有仅具有 样品线。 与一系列随机访问相比，数据管可以从电子存储器更容易地访问，并且还允许对沿着采样线的内插点的内插计算共享。
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2.发明授权Method and apparatus for projecting diagnostic images from volumed diagnostic data 失效用于从诊断数据中预测诊断图像的方法和装置
公开(公告)号：US5295488A
公开(公告)日：1994-03-22
申请号：US925544
申请日：1992-08-05
CPC分类号： H05G1/26 , G01R33/56 , Y10S378/901
摘要： A method and apparatus for manipulating diagnostic images obtained with computed tomography or magnetic resonance systems calculates the rotation of the data around two orthogonal axes and then compresses the data to a plane before rotating it about a third axis normal to the plane. Although apparently less efficient that the rotation about all three axes at once, this procedure is uniquely adapted to the limitations of computer memory access and the calculation speed limits of current computer hardware. Bifurcation of the rotation allows data to be accessed at consecutive addresses speeding memory operations. The bifurcation also permits some calculations to be preperformed and recalled for subsequent voxels. The compressed data is displayed as an image having a particular viewing angle determined by the rotations of the data.
摘要翻译： 用于操纵用计算机断层摄影或磁共振系统获得的诊断图像的方法和装置计算围绕两个正交轴的数据的旋转，然后在垂直于平面的第三轴旋转之前将数据压缩到平面。 尽管一下子对所有三个轴的旋转效率显然都不那么有效，但这个过程独特地适应于计算机存储器访问的限制和当前计算机硬件的计算速度限制。 旋转的分叉允许在连续的地址访问数据，从而加速内存操作。 分岔也允许一些计算被预先执行，并为随后的体素召回。 压缩数据被显示为具有由数据的旋转确定的特定视角的图像。
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3.发明授权Method and apparatus for projecting diagnostic images from non-isotropic volumed diagnostic data 失效用于从非各向同性卷积诊断数据投影诊断图像的方法和装置
公开(公告)号：US5331552A
公开(公告)日：1994-07-19
申请号：US985389
申请日：1992-12-04
摘要： A computer program for manipulating diagnostic images obtained with computed tomography or magnetic resonance systems spatially compresses acquired non-isotropic data to isotropic coordinates as stored in computer memory. A view axis along which a projected image is to be displayed is adjusted to reflect this distortion. After projecting the voxel data to pixels of an image, the data is decompressed to remove any distortion. The decompression operates over the limited number of pixels rather than the entire set of voxels providing faster image generation.
摘要翻译： 用于操纵用计算机断层摄影或磁共振系统获得的诊断图像的计算机程序将所获取的非各向同性数据空间压缩为存储在计算机存储器中的各向同性坐标。 调整投影图像将要显示的视轴以反映该失真。 将体元数据投影到图像的像素后，解压缩数据以消除任何失真。 解压缩操作在有限数量的像素上，而不是提供更快的图像生成的整个体素集。
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