期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
农田害虫的图像预处理研究 被引量:3
1
作者 邱道尹 王要沛 +2 位作者 张孝远 王志迁 顾波 《华北水利水电学院学报》 2007年第6期39-41,共3页
以农田害虫识别系统中的图像预处理为研究对像,介绍了图像灰度化、阈值分割、边缘检测、数学形态学运算和害虫图像目标分割的过程,从而达到去噪、增强等图像预处理的目标,为后期农田害虫的自动识别打下基础.
关键词 农田害虫 图像处理 阈值分割 边缘检测 目标分割
下载PDF
一种新的基于SVD图像降噪方法的探究 被引量:2
2
作者 季维勋 李燕民 李维国 《科学技术与工程》 2010年第20期4949-4953,共5页
奇异值分解(SVD)在图像处理中具有极其重要的应用。针对传统SVD降噪适应性差的缺点,提出了在得知噪音方差的前提下,以基于SVD和能量最小原则图像自适应降噪为参考,在保持相近峰值信噪比的同时,将图像降噪的适应范围进一步推广。并且运... 奇异值分解(SVD)在图像处理中具有极其重要的应用。针对传统SVD降噪适应性差的缺点,提出了在得知噪音方差的前提下,以基于SVD和能量最小原则图像自适应降噪为参考,在保持相近峰值信噪比的同时,将图像降噪的适应范围进一步推广。并且运行时间得到了有效缩减,为处理大型图像问题提供了可能性。数值试验结果表明,同种情况下分块降噪效果更佳。 展开更多
关键词 图像降噪 奇异值分解 分块降噪 能量最小原则
下载PDF
Multi-feature integration kernel particle filtering target tracking 被引量:1
3
作者 初红霞 张积宾 王科俊 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2011年第6期29-34,共6页
In light of degradation of particle filtering and robust weakness in the utilization of single feature tracking,this paper presents a kernel particle filtering tracking method based on multi-feature integration.In thi... In light of degradation of particle filtering and robust weakness in the utilization of single feature tracking,this paper presents a kernel particle filtering tracking method based on multi-feature integration.In this paper,a new weight upgrading method is given out during kernel particle filtering at first,and then robust tracking is realized by integrating color and texture features under the framework of kernel particle filtering.Space histogram and integral histogram is adopted to calculate color and texture features respectively.These two calculation methods effectively overcome their own defectiveness,and meanwhile,improve the real timing for particle filtering.This algorithm has also improved sampling effectiveness,resolved redundant calculation for particle filtering and degradation of particles.Finally,the experiment for target tracking is realized by using the method under complicated background and shelter.Experiment results show that the method can reliably and accurately track target and deal with target sheltering situation properly. 展开更多
关键词 kernel particle filtering multi-feature integration spatiograms integral histogrom TRACKING
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部