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Beamlet变换提取线特征的改进算法 被引量:1

A Modified Algorithm Based on Beamlet Transform for Extraction of Linear and Curvilinear Feature
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摘要 文章首先利用二进方块中Beamlet基的对称、平行等几何性质对离散Beamlet基进行分类;然后通过定义一个新的二进方块统计量和建立一个新的能量函数,对Beamlet变换方法中利用BD-RDP提取线特征的算法进行改进。通过实验对比,该算法进一步减少了运算量,提高了线特征提取的速度,且对复杂结构图像中的线特征提取效果更为清晰。 A modified algorithm which utilizes the BD - RDP algorithm based on Beamlet transform is presented in this paper. It classifies Beamlets by the Beamlets'geometric properties (symmetry and parallel), defines a new quantity (dyadic square statistic) and establishes a new energy function. Experimental results demonstrate the reduction of the computation and the improvement of the speed. These results also demonstrate the effectiveness of the method in the complicated real images.
出处 《南昌航空大学学报(自然科学版)》 CAS 2009年第1期1-8,共8页 Journal of Nanchang Hangkong University(Natural Sciences)
基金 国家自然科学基金"基于双目序列图象线流场的三维物体运动估计和结构重建研究"(60675022) 无损检测技术教育部重点实验室开放基金"基于多目序列图象的刚体运动估计和结构重建研究"(ZD200729006) 江西省教育厅科技计划项目"基于形状和空间关系特征的图像检索方法研究"(GJJ09191) 南昌航空大学研究生创新基金项目"视觉运动分析中的线特征提取与匹配方法研究"(YC2007019)
关键词 BEAMLET变换 线特征提取 二进方块统计 能量函数 Beamlet transform extraction of linear and curvilinear feature dyadic square statistic energy function
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