Results 21 to 30 of about 5,202 (206)
为了进一步增强区域台网针对天然地震与人工爆炸事件的识别能力,本文利用广义S变换方法,围绕河北省三河采石场爆破以及周边发生的天然地震波形记录展开研究,总结了地震与爆炸在时频谱中的差异性。研究表明,受震源机制影响,天然地震时频谱图的频带范围更宽广,能量团分布也较人工爆炸更为复杂。为了消除震中距的影响,本文将求解的时频谱保存为规格相等的灰度图像,通过滑动窗口计算图像的灰度一致性得到新的识别判据−谱图二阶矩。对三河地区已知地震和爆炸事件的测试表明,谱图二阶矩对单台波形记录的识别率可达91 ...
Qianli Yang, Tingting Wang, Yinju Bian
doaj +1 more source
APPLYING EMGUCV IMAGE PROCESSING LIBRARY IN WPF [PDF]
以一款游戏软件的设计为背景,重点介绍基于C#语言的EMguCV图像处理库在WPf平台的应用实例。软件需要完成对图像的滤波、特征提取、相似度计算、图形匹配等任务,最终实现对输入图形图像的识别功能。图像处理单元使用EMguCV图形图像处理库,它允许人们在C#语言或者.nET框架中使用OPEnCV图像处理库的功能。A game software design is taken as the background,in the article we introduce the application ...
任超, 冯勇建
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Abstract This article argues that social actors' media ideologies about digital interfaces are key to the enregisterment of online activities. Focusing on an online register emergent from user activities around Year, Hare, Affair (YHA)—a state‐aligned Chinese animation—I explore how different metadiscourses evaluate this register by entextualizing ...
Jiarui Sun
wiley +1 more source
Research and Application of Face Recognition Based on Deep Convolutional Neural Networks [PDF]
人脸识别是计算机视觉领域中研究的热点之一,不仅是因为以自然脸为研究对象是非常有挑战性的,而且有很多应用需要将人脸识别作为第一步。近年来,随着智能手机的普及,每天有成千上万的照片被上传到社交网络平台,如微博、微信等等,其中包括大量的人脸照片。深度学习是近十年来人工智能领域取得的重要突破,深度学习通过建立类似于人脑的分层模型结构,对输入数据逐级提取从底层到高层的特征,从而能很好地建立从底层信号到高层语义的映射关系。本文以深度学习的方法在人脸识别中的研究与应用为研究对象。 论文首先介绍了研究的背景和意义 ...
万经勇
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Detection of canine external ear canal lesions using artificial intelligence
Background – Early and accurate diagnosis of otitis externa is crucial for correct management yet often can be challenging. Artificial intelligence (AI) is a valuable diagnostic tool in human medicine. Currently, no such tool is available in veterinary dermatology/otology.
Neoklis Apostolopoulos +3 more
wiley +1 more source
Abstract Illegal poaching and overexploitation for the international pet trade are among the greatest threats to freshwater turtles in Southeast Asia. Expanding consumer research in China is crucial to filling knowledge gaps about the scale and structure of illegal trade and developing audience‐targeted and relevant interventions that may reduce demand
Wuji Zheng +10 more
wiley +1 more source
Design and Implementation of Face Recognition System Based on OpenCV and JavaCV [PDF]
随着计算机和互联网的不断发展,在人工智能领域思想理论取得了一系列的发展,作为人工智能领域中发展较为突出的人脸识别技术取得了较为快速的发展。随着国家经济急速的发展,在社会各个领域对人脸识别技术的要求不断增加。人脸识别技术应用领域广泛,可以毫不夸张的说几乎可以覆盖整个社会的各个方面。上至国家信息安全,下到民生建设都有广泛的应用领域。现如今的生活中主要使用输入密码、插卡、获取口令等方式来保护个人信息和财产安全,这些传统的方法具有安全性低、易忘、易丢等缺点。随着技术的发展这些传统验证方式受到新技术的挑战 ...
江桥
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Research Progress on Individual Identification by Frontal Sinus Imaging [PDF]
Frontal sinus imaging is an important research object in forensic individual identification due to the highly specific irregular air cavity shape of frontal sinus, the stability of its shape after maturity, and the wide clinical application of radiology ...
WU Wei, LI Yuan, FAN Fei, et al.
core +1 more source
Trade credit and corporate digital transformation: The role of managerial ability
Abstract We examine whether managerial ability affects the relationship between corporate digital transformation and trade credit. To measure digital transformation, we perform a textual analysis of companies’ annual reports using a customized Chinese dictionary containing digital transformation keywords based on national policy documents and academic ...
Liukai Wang +3 more
wiley +1 more source
The Design and Implementation of Digital Image Enhancement and Recognition System Based on MATLAB [PDF]
摘要 数字图像作为一种新生的技术,它是随着当前计算机技术的发展而兴盛起来的。而且,随着当前计算机信息技术的不断发展,图像的实时处理也已经成为一种可能,并且出于数字图像的多种运算方法的出现,数字图像处理的速度也更加的快速,已经能够更好的满足人们对数字图像增强处理的需求。在当前,这种技术已经广泛的应用于各个领域,其中包括了人脸识别系统以及图像分析系统。 人脸识别技术是当前非常流行的一种依据生物特征识别技术,我们在对人工智能的研究过程当中,作为人类我们一直致力于机器可以拥有像人类一样灵活的思维和思考能力,因此,
陈立
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