摘要
迭代交叉熵凸集投影算法(IterativeCross-EntropyConvexProjectionAlgorithm,ICECP)是一种使交叉熵最小的优化方法,其思路是将这一复杂问题转化为多个较简单子问题,然后交替地求解这些子问题,本文中,作者将这种算法用于X-CT重建问题,得到的算法形式上非常优美。
he iterative crossentropy convex projection algorithm(ICECP) is one of the minimum crossentropy method for optimization. The algorithm approaches the highdimensional difficult problem by iterative solution of relatively easy lowdimensional subproblems. In this paper, we apply the algorithm to maximum entropy XCT reconstruction. The formula obtained is both concise and effective.
出处
《中国生物医学工程学报》
CAS
CSCD
北大核心
1997年第4期367-370,377,共5页
Chinese Journal of Biomedical Engineering
基金
国家自然科学基金
关键词
X-CT
重建
交叉熵
ICECP
优化
iterative crossentropy convex projection algorithm
maximum entropy XCT reconstruction