| 摘要 |
The present invention comprises a novel method, system and device for post-processing images, such as trabecular bone images, obtained by MRI, CT, or other image technologies, to provide increasing apparent image resolution and to alleviate the effects of partial volume blurring, which otherwise precludes accurate measurement of structures in the limited-resolution regime in which image voxel size is larger than the typical structural element to be resolved. Since acquiring images at increased resolution often exacts an unacceptable signal-to-noise penalty, methods and systems to alleviate the adverse effects of partial volume blurring are instrumental for the accurate measurement of architectural parameters in applications, such as predicting the mechanical competence of trabecular bone networks. Referred to as "subvoxel processing," the invention is applicable to volumes of interest containing material phases of two discrete signal intensities, and it has been shown to be significantly more accurate than trilinear interpolation in decreasing apparent voxel size, especially in the presence of noise. |
