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| 一种基于图像块的Legendre矩高精度快速算法 | |
| 引用本文： | 高月芳,韩国强,陈茂资. 一种基于图像块的Legendre矩高精度快速算法[J]. 小型微型计算机系统, 2011, 32(6) |
| 作者姓名： | 高月芳 韩国强 陈茂资 |
| 作者单位： | 1. 华南农业大学信息学院人机交互研究中心,广州,510642 2. 华南理工大学计算机科学与工程学院,广州,510640 |
| 基金项目： | 国家自然科学基金项目(60573019)资助; 广东省科技计划项目(2007A020100006-10)资助 |
| 摘 要： | 针对图像的Legendre正交矩计算量大和矩值求解过程中存在离散近似误差等问题,提出一种新的高精度快速计算图像Legendre矩方法.文中首先提出一种最大块优先分块策略,然后在此基础上,根据图像像素灰度值的取值特征将图像进行分块表示,以每个图像块为单位计算图像的Legendre矩.实验结果表明,与现有的快速算法相比,文中方法在保证矩值高精确的前提下,有效地减少了算术运算的次数,降低了计算复杂度,具有较快的计算速度. |
| 关 键 词： | Legendre矩 最大块优先分块策略 快速计算 图像处理 |
High-precision Fast Computation of Legendre Moments Based on Image Block Strategy |
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| GAO Yue-fang,HAN Guo-qiang,CHEN Mao-zi. High-precision Fast Computation of Legendre Moments Based on Image Block Strategy[J]. Mini-micro Systems, 2011, 32(6) | |
| Authors: | GAO Yue-fang HAN Guo-qiang CHEN Mao-zi |
| Affiliation: | GAO Yue-fang1,HAN Guo-qiang2,CHEN Mao-zi1 1(Research Center of Human Computer Interaction,College of Informatics,South China Agricultural University,Guangzhou 510642,China) 2(School of Computer Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
| Abstract: | In order to decreasing the computational time and avoiding numerical approximation which is involved in Legendre orthogonal moments,a new algorithm for high-precision and fast computation of Legendre moments on gray scale images is presented.A maximum image block first representation strategy(MBF) is proposed which is used to extract blocks of all intensity values.After extracting the blocks,the image can be redefined and computed using integral formula in terms of blocks of different intensities.The experi... |
| Keywords: | legendre moments maximum image block first representation strategy fast computation image processing |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |