Abstract: In this paper we express the TSVD solutions to the discretized 2-D problem in terms of Kronecker products，thus illustrating how to get over the ill-posed of the problem and how all computations with the large matrix can be avoided.Experience results show that the method has a great effect in image debluring.

Key words: block Toeplitz matrix, Kronecker product, 2-D TSVD, image debluring

摘要： 研究了二维截断奇异值分解（2-D TSVD）在大规模图像恢复中的应用，起到了正则化的作用，克服了问题固有的不适定性，同时也解决了由于存储有限带来的问题。实验结果表明，该方法恢复效果显著。

关键词: 块特普利茨矩阵, Kronecker内积, 二维截断奇异值分解, 图像恢复