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A note on exact image reconstruction from a limited number of projections

机译:关于使用有限数量的投影进行精确图像重建的注意事项

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摘要

In a recent paper in this journal by Kesidis and Papamarkos "A new method for the exact reconstruction of any gray-scale image from its projections, is proposed." In this note we point out that this method is a special case of a well-known approach (peeling) and that it can produce exact reconstructions only under assumptions that are not realistic for practical methods of data collection. Further, we point out that some statements made in the paper regarding disadvantages of the algebraic reconstruction techniques (ART) as compared to the method of the paper are false.
机译:Kesidis和Papamarkos在该期刊的最新论文中,“提出了一种从其投影精确重建任何灰度图像的新方法。”在本注释中,我们指出该方法是一种众所周知的方法(剥离)的特例,并且只有在对于实际数据收集方法不切实际的假设下,它才能产生精确的重构。此外,我们指出,本文中关于代数重构技术(ART)与本文方法相比的缺点的某些陈述是错误的。

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