摘要
矩及矩理论在图像分析以及多媒体数据库图像检索中有很大的用途,但由于计算复杂,难以直接应用,文中从近似处理角度,提出了一种近似计算方法,先计算截交线上的矩,并利用LEGENDRE多项式的性质进行近似处理,然后组合成一维矩,再由一维矩得到二维矩,明显提高了计算效率。
The theory of moments is widely used in graphics analysis and graphics retrieval in multimedia database.However,because of difficulty of calculation,it can not be used directly.An approximate algorithm is provided in this paper.First,calculate moments on cut-off lines approximately by the attributes of Legendre polynomial,and then get one-dimension moments,finally,get two-dimension moments.Thus,the rapidity of calculation is improved obviously.
出处
《上海工程技术大学学报》
CAS
2004年第1期50-52,共3页
Journal of Shanghai University of Engineering Science
