数字图像重建的迭代算法研究及仿真

Study and Simulation on the ART Algorithm of Figure Image Reconstruction

以不完全投影数据的高分辨率CT重建算法为研究对象,以最大限度地再现重建目标为目的,寻找、设计出与之相适应的算法。介绍了代数重建法,并用代数重建法从探测器数目不完全和角度幅数不完全两个方面进行了重建仿真,并分析了重建结果。

Taking aim at reconstructing object within fine limits, this paper studied the high-resolution algorithm based on incomplete projection data,found out a reconstruction algorithm. Then, the simulated reconstruction in two aspects of incomplete angle data and projection data was made by use of algebraic reconstruction techniques, and the result of reconstruction was analyzed.