摘要
针对糙米的形态结构特征,运用非接触式激光扫描测试技术,以变截面环形扫描的方式获取糙米表面的原始点云,对原始点云进行法向量估计和光顺滤波等处理;利用泊松重建算法原理对光顺后的具有法向信息的点云进行模型重建,得到理想的糙米表面三维模型。结果表明,重建的糙米模型表面光滑,轮廓清晰,且米沟、胚芽等细节特征明显,可为后期研究提供有效的数字化模型。
In view of the morphological and structural characteristics of brown rice,use the non-contact laser scanning technology to acquire original point cloud on brown rice surface in the multi-section circular scanning way.The Poisson reconstruction algorithm is used to reconstruct the smoothed point cloud with normal information to obtain the ideal three-dimensional model of brown rice surface.The results show that the reconstructed brown rice model has smooth surface,clear outline,and obvious details such as rice ditch and germ,which can provide an effective digital model for the later improvement of rice processing technology.
作者
吴婧
汤晓华
杨泗苹
安嘉强
李天骄
杨金山
WU Jing;TANG Xiao-hua;YANG Si-ping;AN Jia-qiang;LI Tian-jiao;YANG Jin-shan(School of Material and Mechanical Engineering,Beijing Technology and Business University,Beijing,100048,China)
出处
《食品与机械》
北大核心
2019年第12期19-22,28,共5页
Food and Machinery
关键词
糙米
点云
激光扫描
光顺滤波
泊松重建
brown rice
point cloud
laser scanning
smoothing
Poisson reconstruction
