基于步态特征提取方法的研究

对步态识别的国内外研究现状进行了详细的论述;介绍了基于步态识别的身份识别过程,阐述了在步态识别各阶段用到的一些方法;对步态识别的下一步工作进行了探讨。     

基于知识的工程图识别模型研究

对人工读图的认知过程进行了分析,总结出其自组织的特征,设计了\"基于知识的工程图识别层次模型\",将整个工程图识别过程分为像素、矢量图元和工程图形三个层次,层次之间相应地进行基于知识的两阶段的矢量化和识别处理,该模型为各种工程知识的使用打下了基础。     

基于语音识别和GSM的门控系统设计

本设计采用语音识别和GSM远程报警技术使防盗系统智能化,安全性提高。该智能门控系统基于凌阳16位单片机SPCE061A为控制核心,将语音信号进行数字信号处理,利用特定人语音识别技术实现语音识别密码锁功能,并利用GSM模块实现无线远程短信和拨号报警功能。从硬件设计、软件优化等方面进行总体设计,并且通过结果测试和分析证明了设计的可行性。     

‘Left with a title but nothing else’: the challenges of embedding professional recognition schemes for teachers within higher education institutions

ABSTRACT

With increasing moves globally towards the professionalisation of teaching in Higher Education, there is growing interest in the role of accredited professional recognition schemes that provide professional development for established university teaching staff. In the UK, There are now over 120 professional recognition schemes, resulting in institutionally focused evaluation studies examining their impact. This article contributes to this emerging body of work; it draws on cross-institutional data and Foucauldian theorising to address two important questions. In what ways does engagement with an institutional professional recognition scheme impact on participants’ teaching development, and how does institutional culture influence that engagement? The data illustrate that whilst institutional culture drives engagement, it did little to promote teaching development. Across the case-study institutions, neo-liberalism agendas were apparent. Some staff felt pushed to achieve professional recognition in response to the increasing use of metrics to measure the student experience and to inform institutional standing in league tables. Whilst evidence shows the process of seeking accreditation can lead to an enhancement in teaching practices, caution must be taken to ensure that the professional development opportunities offered by accreditation schemes are fully realised.     

LD夜视成像探测中基于PSF的超分辨率重建技术研究

夜视目标识别在视频监控中起着非常重要的作用。从早期的红外热成像发展至今,激光夜视成像系统被广泛的应用。它不仅受到大气吸收和散射特性的影响,还与光学系统中的透镜及传感器的衍射极限有关。在既有成本下,通过图像复原和超分辨率重建,可以尽可能的提高夜视成像的成像质量。很多学者的研究结果表明,成像系统的点扩散函数作为先验知识,可以提高图像复原的质量。因此,本文在最大后验概率框架下,实现点扩散函数与凸集投影超分辨率重建相结合,并应用到半导体激光夜视成像探测系统中,客观的图像质量评价标准被用来决定迭代次数。目标识别的实验结果表明,用本文提出的重建方法可以有效提高半导体激光夜视成像的范围和成像质量。     

High-extensible scene graph framework based on component techniques

INTRODUCTION With the tremendous growth of the digital en- tertainment industry in the past decades, the scale of game scene is becoming more gigantic. To effectively manage and organize the massive data, game engine usually uses hierarchical scene graph. Many popular 3D modelling tools, such as Maya, 3D Studio Max, use scene graph to manage the scene content (Sowizral, 2000). 3D modelling software—Houdini directly edits scene graph to create and modify the virtual environment. Most v…     

小波域红外能量图人脸识别中小波基的选取

小波域红外能量图人脸识别技术不但可实现全天候人脸识别,而且能够减少人脸识别中的数据复杂度,但是其识别率和时间花费与小波基的选取有关。为此对几种常用的小波基分别进行了实验,并对实验结果进行了分析和总结。实验结果表明,具有正交性和对称性的小波具有较高的红外人脸识别率。     

Association between mothers’ problematic Internet use and maternal recognition of child abuse

BackgroundThere are few studies about mothers’ problematic Internet use (PIU). Mothers’ PIU may lead to inadequate parenting and child abuse.ObjectiveThis cross-sectional study aimed to clarify the association between mothers’ PIU and their recognition of child abuse.Participants and settingWe analyzed data collected of health examinations of children aged 4 months, 1.5 years, and 3 years which were carried out in Matsue City, Shimane Prefecture, Japan between April 2016 and March 2017. The number of the subjects were 1685, 1729, 1674, respectively.MethodsWe used logistic regression analysis to clarify the association between mothers’ PIU (Young’s Diagnostic Questionnaire for Internet Addiction score: ≥5) and their recognition of child abuse (selecting < True of me > for < I sometimes think that I am abusing my child > on a questionnaire survey), which was adjusted for covariates such as maternal age, number of children, daytime caretaker, social support, postpartum depression, and current smoking status of the parents.ResultsBased on the multivariate logistic regression analysis, the mothers’ PIU was significantly correlated with their recognition of child abuse for children aged 4 months, 1.5 years, or 3 years [odds ratio (OR): 13.30, 95% confidence interval (CI): 1.26–139.98, OR: 7.02, 95% CI: 1.28–38.55, and OR: 28.06, 2.48–317.93, respectively].ConclusionThis study revealed the possibility that mothers with PIU recognize child abuse more than mothers without PIU. However, further studies should be conducted to increase reliability and validity.