块匹配搜索算法在木材弯曲变形测量中的应用  

Application of Block Matching Searching Algorithm in Wood Bending Deformation Measurement

作　　者：张喆[1] 赵东[1] 赵健[1] 

机构地区：[1]北京林业大学工学院,北京100083

出　　处：《科学技术与工程》2013年第6期1581-1584,共4页Science Technology and Engineering

基　　金：北京市自然科学基金(2072013)资助

摘　　要：为了提高木材弯曲变形的测量精度和计算效率,减少匹配错误率的发生,以减少搜索区域提高计算速度为目的,通过仿真计算分析比较了视频处理中四种常见的块匹配搜索算法的计算效率,并以木材为研究对象进行了刚体平移和三点弯曲试验。验证了四种不同算法在木材弯曲变形测量中的有效性。结果表明,对于木材弯曲变形测量,在综合考虑计算效率与计算精度的情况下,菱形搜索算法最优,四步搜索算法次之。In order to improve accuracy and computational efficiency of wood bending deformation measurement and reduce matching error rate occur, with the purpose of reducing the search region to improve computational speed, the simulation analysis to compare the efficiency of four kinds of common block matching searching algo- rithm in video processing is used. And then through the rigid-body translational and three point bending test, the validity of four different algorithm in wood bending deformation measurement is studied. The results show that, for the wood diamond bending deformation measurement, considering the computational efficiency and computational precision, search method occupies first place, and four steps search method comes second.

关 键 词：数字散斑相关方法 块匹配搜索算法 计算机仿真 木材变形 

分 类 号：S781.23[农业科学—木材科学与技术] TP391.9[农业科学—林学]