濾波反投影演算法之FPGA硬體平台實現

Abstract

電腦斷層掃瞄自發明以來到現在，技術已經非常成熟，除了應用在醫療診斷外，也應用在其他領域。但是由於價格昂貴，體積龐大不易搬動，難以在其他領域堆廣。我們利用現今硬體製程進步，IC技術發達之利，希望能設計一顆便宜的系統單晶片來執行影像重建的工作。我們使用濾波反投影演算法作為影像重組的理論基礎，並且使用Xilinx公司出產的ML310 Development Board作為我們實作的平台。實作出來的系統單晶片雛形在重建影像上效率符合預期，重建出來的影像也有良好的效果。

Since Computer Tomography (CT) scanner was invented, many advances have been made in scanner technology as well as in the algorithm used for CT reconstruction. Today CT scanners are used in diagnostic medicine and other applications. But the CT scanner is expensive and too heavy to take it along, so CT is not popular except diagnostic medicine. Now the hardware and IC design progress rapidly, so we hope to design a cheap SoC for reconstructing image. The Filtered Back Projection Algorithm is the base theory of our design and we implement it on ML310 Development Board of Xilinx company. Experimental results show that the efficiency of SoC model of the Filtered Back Projection Algorithm reach our anticipation and the quality of reconstructed image is feasible.