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    • 6. 发明申请
    • DYNAMIC MR IMAGING INVOLVING CONSTRAINED RECONSTRUCTION USING POCS ALGORITHM
    • 涉及使用POCS算法的约束重建的动态MR成像
    • WO2005026765A1
    • 2005-03-24
    • PCT/GB2004/003998
    • 2004-09-17
    • THE INSTITUTE OF CANCER RESEARCH; ROYAL CANCER HOSPITALTHE ROYAL MARSDEN NHS FOUNDATION TRUSTDEGENHARD, AndreasWHITE, Mark JamesLEACH, Martin Osmund
    • DEGENHARD, AndreasWHITE, Mark JamesLEACH, Martin Osmund
    • G01R33/56
    • G01R33/5619G01R33/56
    • There is disclosed a method of processing image data for use in the reconstruction of an image, the image data comprising complex-valued data items possessing an amplitude component and a phase component, the method comprising the steps of: (a) generating image data items for a first image of the object including only low spatial resolution image data items which represent the object at low image resolution; (b) generating image data items for a second image of the object including low spatial resolution image data items which represent the object at low image resolution and high spatial resolution image data items which represent the object at high image resolution; (c) modifying said phase component or said amplitude component of image data items generated in step (b) according to low spatial resolution image data items generated in step (a) thereby to estimate high spatial resolution image data for use in reconstructing said first image at high spatial resolution, wherein said modifying involves a projection onto convex sets (POCS).
    • 公开了一种处理用于重建图像的图像数据的方法,该图像数据包括具有振幅分量和相位分量的复值数据项,该方法包括以下步骤:(a)产生图像数据项 用于对象的第一图像,仅包括以低图像分辨率表示对象的低空间分辨率图像数据项; (b)生成包含低图像分辨率的低空间分辨率图像数据项和表示高分辨率物体的高空间分辨率图像数据的物体的第二图像的图像数据项; (c)根据步骤(a)中生成的低空间分辨率图像数据项来修改在步骤(b)中生成的图像数据项的所述相位分量或所述振幅分量,从而估计用于重构所述第一图像的高空间分辨率图像数据 在高空间分辨率下,其中所述修改涉及到凸集(POCS)上的投影。
    • 10. 发明申请
    • TIME-SEQUENTIAL VOLUME RENDERING
    • 时间顺序体积渲染
    • WO2007054662A1
    • 2007-05-18
    • PCT/GB2006/003405
    • 2006-09-14
    • THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITALTHE ROYAL MARSDEN NHS FOUNDATION TRUSTKHAZEN, MichaelLEACH, Martin Osmund
    • KHAZEN, MichaelLEACH, Martin Osmund
    • G06T15/00
    • G06T15/08
    • There is disclosed a method and apparatus for generating data for a two-dimensional image which identifies different classes of property of an imaged subject, this being done by separately rendering volumetric data classified into those different classes and, from all of those separate renderings, choosing one datum for use in the two-dimensional image as an image pixel. This being repeatable for each datum to be used in the two-dimensional image - thereby, for example, to selectively build-up the data for whole of the two-dimensional image as a mixture/combination of different classes of data. The data for the two-dimensional image may be colour coded for visually distinguishing data of different classes. Thus when applied to the image enhancement of tissues subjected to contrast agent uptake in patients kinetic information may be incorporated into the volume renderings to enable tissues of different enhancement and kinetic characteristics to be identified as such.
    • 公开了一种用于生成二维图像的数据的方法和装置,其识别成像对象的不同属性类别,这通过分别绘制分类为不同类别的体积数据来完成,并且从所有这些单独的渲染中选择 用于二维图像中的一个数据作为图像像素。 对于要在二维图像中使用的每个数据,这是可重复的,从而例如为了整个二维图像选择性地建立数据,作为不同类别的数据的混合/组合。 用于二维图像的数据可以进行颜色编码,用于视觉区分不同类别的数据。 因此,当应用于在患者中进行造影剂摄取的组织的图像增强时,可以将动力学信息并入体积渲染中,以使得能够识别不同增强和动力学特征的组织。