在matlab环境下进行2维ART重建。相较c更简洁快速-ART for 2-dimensional reconstruction in the matlab environment. Compared c cleaner fast

ART算法图像重构，用matlab实现的算法(ART algorithm image reconstruction and matlab implementation algorithm)

图像重建领域经典算法——代数重建技术,使用matlab实现，新手入门必备。(this is a program of image reconstruction, it use to reconstruct imge , it's name is algebra reconstruction technique.)