2DPCA versus PCA for face recognition

来源 :Journal of Central South University | 被引量 : 16次 | 上传用户:plcsolitary
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Dimensionality reduction methods play an important role in face recognition. Principal component analysis(PCA) and two-dimensional principal component analysis(2DPCA) are two kinds of important methods in this field. Recent research seems like that 2DP
其他文献
目的:研究侧支血管生成过程中整合素αvβ3的表达及细胞外基质对其表达的调节。方法:结扎大鼠股动脉,应用免疫荧光组织化学技术检测侧支血管整合素αvβ3的表达;并在体外实验中检
It is important to investigate the dynamic behaviors of deep rocks near explosion cavity to reveal the mechanisms of deformations and fractures. Some improvemen
张家垛油田阜三段储层为三角洲相沉积,储层主要以细砂岩为主、粉砂岩次之。通过储层岩性、测井、试油及多种分析化验等资料,对研究区目地层的“四性”关系进行了研究,认为阜
目的:为了给脑功能影像学研究和脑小病灶的早期定位诊断与治疗提供脑回定位的形态学基础和新方法,探讨横断层CT扫描图像上脑回表盘法定位的可行性。方法:随机选取30例外观无异常
When the tunneling boring machine(TBM) cutterhead tunnels, the excessive vibration and damage are a severe engineering problem, thereby the anti-vibration desig
Ultrafine-grained(UFG) high purity aluminum exhibits a variety of attractive mechanical properties and special deformation behavior. Equal channel angular press
Based on a synthetic geological study of drilling, well logging and core observations, two main genetic types of Chang 9sand body in Odors Basin were recognized
苏里格气田是形成于河流相背景下的低渗透致密砂岩气藏,沉积条件和储层物性决定了其开发难度大,水平井整体部署技术和压裂技术的结合应用可实现气田的少井高产高效开发。从水平
To gain a thorough understanding of the load state of parallel kinematic machines(PKMs), a methodology of elastodynamic modeling and joint reaction prediction i
根据富县探区延长组岩心、试油、物性等资料,分析了储层的岩性、物性、含油性和电性特征及四者之间的关系,确定了延长组储层物性下限,结果表明,富县探区延长组为低孔低渗-特