As a new image analysis technique, Empirical Mode Decomposition (EMD) has been drawn more attention in recent years. In this paper, we proposed a fast EMD method for the edge detection of medical imag
专业课程开展双语教学可以使学生掌握专业课程知识的同时,培养英语的综合应用能力。多媒体技术课程开展双语教学培养教育技术专业学生利用英语学习和掌握课程知识和交流的能力。结合多媒体技术课程开展双语教学的实践,提出了专业课程双语教学开展的特点和存在的问题。
清华大学电子工程系自主研发的“TH ID多模生物特征身份认证系统”,日前通过由教育部组织的鉴定。鉴定专家认为,该系统融合了人脸、笔迹、签名以及虹膜等最重要的几项生物特征的身份认证,在技术上位居世界前列,具有重大的理论和应用价值。网络信息化时代的一大特征就是身份的数字化和隐性化,如何准确鉴定一个人的身份,保护信息安全,是信息化时代必须解决的一个关键问题。
近年来,数码相机的普及和多功能一体机的迅速发展使扫描仪的市场受到了很大的冲击,低端扫描仪的市场开始萎缩。但在中高端市场中,扫描仪的高分辨率、底片扫描功能以及不受环境影响等优势,使它们牢牢地守住了自己的“阵地”。
The authors introduced two kinds of newly found soft-sediment deformation-syn-sedimentary extension structure and syn-sedimentary compression structure,and discuss their origins and constraints on bas
Based on P- and S-wave amplitudes and some clear initial P-wave motion data, we calculated focal mechanism solutions of 928 M≥2.5 earthquakes (1994~2005) in four sub-blocks of Sichuan and Yunnan Provi
A three-component geomagnetic survey was carried out during the period from 2002 to 2004 in China including Jiujiang-Ruichang region. Comparing the “2005.0 surface spline model of China geomagnetic fi
In this paper we investigate the use of a shadow-based delineation program for identifying segments in imagery of a closed canopy, deciduous forest, in West Virginia, USA, as a way to reduce the noise