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Single Image 3D Beard Face Reconstruction Approaches 单图像三维胡须人脸重建方法
Pub Date : 2022-01-01 DOI: 10.4018/ijcps.314572
Hafiz Muhammad Umair Munir, W. S. Qureshi
3D face and 3D hair reconstruction are interesting and emerging applications within the fields of computer vision, computer graphics, and cyber-physical systems. It is a difficult and challenging task to reconstruct the 3D facial model and 3D facial hair from a single photo due to arbitrary poses, facial beard, non-uniform illumination, expressions, and occlusions. Detailed 3D facial models are difficult to reconstruct because every algorithm has some limitations related to profile view, beard face, fine detail, accuracy, and robustness. The major problem is to develop 3D face with texture of large, beard, and wild poses. Mostly algorithms use convolution neural networks and deep learning frameworks to develop 3D face and 3D hair. The latest and state-of-the-art 3D facial reconstruction and 3D face hair approaches are described. Different issues, problems regarding 3D facial reconstruction, and their proposed solutions have been discussed.
3D人脸和3D头发重建是计算机视觉、计算机图形学和网络物理系统领域中有趣的新兴应用。由于任意姿势、面部胡须、不均匀光照、表情和遮挡,从单张照片中重建3D面部模型和3D面部毛发是一项困难且具有挑战性的任务。由于每一种算法在轮廓视图、胡须面、精细细节、准确性和鲁棒性等方面都存在一定的局限性,使得详细的三维人脸模型难以重建。主要问题是开发具有大,胡子和狂野姿势纹理的3D面部。大多数算法使用卷积神经网络和深度学习框架来开发3D人脸和3D头发。描述了最新和最先进的3D面部重建和3D面部毛发方法。本文讨论了三维面部重建的不同问题、问题及其解决方案。
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引用次数: 0
Applied Holistic Mathematical Models for Dynamic Systems (AHMM4DS) 动态系统应用整体数学模型(AHMM4DS)
Pub Date : 2021-01-01 DOI: 10.4018/ijcps.2021010101
A. Trad
In this article, the author presents the applied holistic mathematical model for the support of dynamic system (AHMM4DS) transformation and integration processes. The AHMM4DS is based on a mixed research method that is supported by a mainly a qualitative research approach, where the main goal is to insure a strategic business competitive advantage. The AHMM4DS uses a natural programming language (NLP) and factors to support a central reasoning engine and a distributed enterprise architecture project's (EAP) concept. This article's proof of concept (PoC) presents the transformation of a dynamic systems, where the central point is the transformation of their services. A DS is managed by a transformation manager, who uses a methodology and a framework that can support and estimate the risks of implementation of a transformation process. Then he uses it to solve various types of problems. The manager is also responsible for the implementation of the DS, and during its implementation phase a transformation framework is needed.
本文提出了支持动态系统(AHMM4DS)转换和集成过程的应用整体数学模型。AHMM4DS基于混合研究方法,主要支持定性研究方法,其主要目标是确保战略业务竞争优势。AHMM4DS使用自然编程语言(NLP)和因子来支持中央推理引擎和分布式企业架构项目(EAP)概念。本文的概念证明(PoC)展示了动态系统的转换,其中的中心点是其服务的转换。DS由转换经理管理,他使用一种方法和框架来支持和评估转换过程实现的风险。然后他用它来解决各种各样的问题。经理还负责DS的实现,并且在其实现阶段需要一个转换框架。
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引用次数: 5
Shared Cybersecurity Risk Management in the Industry of Medical Devices 医疗器械行业共享网络安全风险管理
Pub Date : 2021-01-01 DOI: 10.4018/ijcps.2021010103
Maria Lai-Ling Lam, Kei-Wing Wong
The cybersecurity capabilities of Class 1 medical devices must be seriously addressed when the industry moves toward Industry 4.0. Many U.S. manufacturers are not committed to cybersecurity risk management because they pursue lower cost and shorter product life cycles, do not have sufficient knowledge of operating environments of hospitals, have defensive attitudes toward vulnerability disclosure, and reap quick benefits from the low-trust level among stakeholders and the unequal power between manufacturers and distributors. Only a few large U.S. manufacturers of medical devices have set up robust secure platforms and interoperable optimal standards that can elevate the security practices of entire global supply chain of Class 1 devices. Many small and medium-sized enterprises inside and outside the U.S. need to be equipped to co-foster cybersecurity values with large manufacturers through the coordination between government and industry regulations and the support of international organizations and local government policies.
当行业向工业4.0发展时,必须认真解决1类医疗设备的网络安全能力。许多美国制造商没有致力于网络安全风险管理,因为他们追求更低的成本和更短的产品生命周期,对医院的运营环境没有足够的了解,对漏洞披露持防御态度,并从利益相关者之间的低信任水平和制造商与分销商之间的不平等权力中快速获利。只有少数美国大型医疗设备制造商建立了强大的安全平台和可互操作的最佳标准,可以提升整个全球1类设备供应链的安全实践。美国国内外的许多中小企业需要通过政府和行业法规之间的协调以及国际组织和地方政府政策的支持,与大型制造商共同培养网络安全价值观。
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引用次数: 0
Security Measures in IoT Devices, Including Wireless Medical Devices: Factors Influencing the Adoption of Effective Security Measures 包括无线医疗设备在内的物联网设备的安全措施:影响采取有效安全措施的因素
Pub Date : 2021-01-01 DOI: 10.4018/ijcps.2021010102
Patricia G. Foley, Kathleen M. Hargiss, Caroline Howard, Anne Pesanvento
The exponential growth in global adoption of the internet of things (IoT) has resulted in increasing challenges to secure devices against the rapid escalation of malicious users and external attacks. Security of IoT devices is particularly critical in the medical sector, where data breaches have become common in recent years at healthcare facilities, medical laboratories, and medical insurance companies. The phenomenological study focused on the experiences of users of IoT devices and the adoption of effective security measures in IoT devices, especially wireless medical devices. The results from this research study indicated that there was a need for policymakers to be more aware of the security issues that plague some IoT devices, including the need for training to detect potential breaches and cybersecurity aberrations, improved features for protection of devices, and better password security. The study concludes with recommendations for policymakers and device manufacturers.
物联网(IoT)的全球采用呈指数级增长,导致保护设备免受恶意用户和外部攻击快速升级的挑战越来越大。物联网设备的安全性在医疗行业尤为重要,近年来,医疗机构、医疗实验室和医疗保险公司的数据泄露已经变得很常见。现象学研究侧重于物联网设备用户的体验以及物联网设备,特别是无线医疗设备中采取的有效安全措施。这项研究的结果表明,政策制定者需要更多地意识到困扰一些物联网设备的安全问题,包括需要培训以检测潜在的漏洞和网络安全异常,改进设备保护功能以及更好的密码安全性。该研究总结了对政策制定者和设备制造商的建议。
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引用次数: 1
Modern Subsampling Methods for Large-Scale Least Squares Regression 大规模最小二乘回归的现代子抽样方法
Pub Date : 2020-07-01 DOI: 10.4018/IJCPS.2020070101
Tao Li, Cheng Meng
Subsampling methods aim to select a subsample as a surrogate for the observed sample. As a powerful technique for large-scale data analysis, various subsampling methods are developed for more effective coefficient estimation and model prediction. This review presents some cutting-edge subsampling methods based on the large-scale least squares estimation. Two major families of subsampling methods are introduced: the randomized subsampling approach and the optimal subsampling approach. The former aims to develop a more effective data-dependent sampling probability while the latter aims to select a deterministic subsample in accordance with certain optimality criteria. Real data examples are provided to compare these methods empirically, respecting both the estimation accuracy and the computing time.
子抽样方法的目的是选择一个子样本作为观察样本的替代。作为一种强大的大规模数据分析技术,各种子抽样方法被开发出来,以更有效地估计系数和预测模型。本文综述了基于大规模最小二乘估计的几种最新子抽样方法。介绍了两大类子抽样方法:随机子抽样方法和最优子抽样方法。前者的目的是建立一个更有效的数据依赖的抽样概率,后者的目的是根据一定的最优性准则选择一个确定性的子样本。给出了实际数据实例,从估计精度和计算时间两方面对这些方法进行了经验比较。
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引用次数: 10
Credit Risk Assessment of Internet Financial Platforms Based on BP Neural Network 基于BP神经网络的互联网金融平台信用风险评估
Pub Date : 2020-07-01 DOI: 10.4018/IJCPS.2020070102
Yu Yuan, Yue Yang
Aiming at the problem of credit risk, this paper selects key data indicators to establish an index system combining with the factors affecting the credit risk of the platform. Python crawler software was used to obtain relevant data of net lending platforms, and the crawled data of more than 1000 platforms were preprocessed. Ninety-five platforms with complete data were selected to build a BP neural network risk assessment model. The BP neural network model is used to make an empirical analysis of the risks of online lending platforms by using the data obtained, and the evaluation method of this paper is compared with the rating method of online lending sky eye. The empirical results show that the error of BP neural network can be stable at about 0.5, and the accuracy rate of evaluation is as high as 95.45%, which is much higher than the accuracy rate of 44.21% of net loan platform. This paper provides decision support for the credit risk early warning of net loan platform.
针对信用风险问题,本文选取关键数据指标,结合影响平台信用风险的因素,建立指标体系。使用Python爬虫软件获取网贷平台相关数据,并对1000多个平台的爬虫数据进行预处理。选取95个数据完备的平台,建立BP神经网络风险评估模型。利用获得的数据,运用BP神经网络模型对网贷平台的风险进行实证分析,并将本文的评价方法与网贷天眼评级方法进行对比。实证结果表明,BP神经网络的误差可以稳定在0.5左右,评价准确率高达95.45%,远高于网贷平台44.21%的准确率。本文为网贷平台信用风险预警提供决策支持。
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引用次数: 0
Fuzzy Control in Cyber-Physical Systems 信息物理系统中的模糊控制
Pub Date : 2020-07-01 DOI: 10.4018/IJCPS.2020070103
M. Voskoglou
Controllers are devices regulating the operation of other devices or systems. Fuzzy controllers analyze the input data in terms of variables which take on continuous values in the interval [0, 1]. Since fuzzy logic has the advantage of expressing the solution of the problems in the natural language, the use of fuzzy instead of traditional controllers makes easier the mechanization of tasks that have been already successfully performed by humans. In the present paper a theoretical fuzzy control model is developed for the braking system of autonomous vehicles, which are included among the most characteristic examples of Cyber-Physical Systems. For this, a simple geometric approach is followed using triangular fuzzy numbers as the basic tools.
控制器是调节其他设备或系统运行的设备。模糊控制器根据在区间[0,1]内取连续值的变量来分析输入数据。由于模糊逻辑具有用自然语言表达问题的解决方案的优点,因此使用模糊控制器代替传统控制器使已经由人类成功执行的任务更容易机械化。本文建立了自动驾驶汽车制动系统的理论模糊控制模型,该模型是网络物理系统中最具代表性的例子之一。为此,使用三角模糊数作为基本工具,遵循简单的几何方法。
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引用次数: 1
Architectural Modelling of Cyber Physical Systems Using UML 使用UML的网络物理系统的体系结构建模
Pub Date : 2019-07-01 DOI: 10.4018/ijcps.2019070102
K. Sridhar Patnaik, I. Snigdh
Cyber-physical systems (CPS) is an exciting emerging research area that has drawn the attention of many researchers. However, the difficulties of computing and physical paradigm introduce a lot of trials while developing CPS, such as incorporation of heterogeneous physical entities, system verification, security assurance, and so on. A common or unified architecture plays an important role in the process of CPS design. This article introduces the architectural modeling representation of CPS. The layers of models are integrated from high level to lower level to get the general Meta model. Architecture captures the essential attributes of a CPS. Despite the rapid growth in IoT and CPS a general principled modeling approach for the systematic development of these new engineering systems is still missing. System modeling is one of the important aspects of developing abstract models of a system wherein, each model represents a different view or perspective of that system. With Unified Modeling Language (UML), the graphical analogy of such complex systems can be successfully presented.
信息物理系统(CPS)是一个令人兴奋的新兴研究领域,引起了许多研究者的关注。然而,在开发CPS的过程中,计算和物理范式的困难带来了许多尝试,例如异构物理实体的合并、系统验证、安全保证等。公共或统一的体系结构在CPS设计过程中起着重要的作用。本文介绍了CPS的体系结构建模表示。将各层模型从高层到低层进行集成,得到通用元模型。体系结构捕获CPS的基本属性。尽管物联网和CPS快速增长,但仍然缺乏用于这些新工程系统系统开发的通用原则建模方法。系统建模是开发系统抽象模型的重要方面之一,其中每个模型表示该系统的不同视图或透视图。使用统一建模语言(UML),可以成功地对此类复杂系统进行图形化类比。
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引用次数: 2
An Image Processing and Machine Learning Approach for Early Detection of Diseased Leaves 基于图像处理和机器学习的病叶早期检测方法
Pub Date : 2019-07-01 DOI: 10.4018/ijcps.2019070104
J. SowmyaB., Chetan Shetty, S. Seema, K. Srinivasa
India is largely an agriculture dependent country. It contributes to almost 17% of the GDP. A wide range of crops are grown throughout the year. Extensive cultivation also makes the plants prone to a lot of diseases. There are no efficient methods to detect these diseases from its outset. People in the rural areas where most of the agriculture happens are totally helpless in situations where most of their crops have been affected by disease. Most of the diseases that plague plants leave a characteristic feature on the leaf. By applying image processing techniques like image enhancement and feature extraction one can extract the required information required to analyze the type and severity of the disease. The obtained information when fed to a classifier like support vector machine (SVM), the plant can be classified to be affected by a certain disease. One can also determine the stage of the disease (infant or mid or terminal). Crop diseases impact the livelihood of those involved in agriculture immensely. Consumption of such produce also affects the health of humans and animals. Manually monitoring these diseases requires a lot of time and expertise. Hence, utilizing image processing for the detection of diseases is a better option. It takes into consideration the features which may not be determined visually. Consider the example of tomato crop in India which is prone to a number of diseases caused by pathogens, bacteria, viruses, and phytoplasmas-like organisms. Due to this disease the framers incur a huge loss. To overcome this problem a lot research is being conducted using image processing and neural network model for automatic detection of diseases using drone technology.
印度在很大程度上是一个依赖农业的国家。它贡献了近17%的GDP。一年四季种植各种各样的作物。粗放的种植也使植物容易发生许多疾病。没有有效的方法从一开始就发现这些疾病。在农业主要集中的农村地区,人们在他们的大部分作物受到疾病影响的情况下完全无助。大多数危害植物的疾病都会在叶子上留下一个特征。通过应用图像增强和特征提取等图像处理技术,可以提取分析疾病类型和严重程度所需的信息。将获得的信息输入到支持向量机(SVM)等分类器中,就可以将植物分类为受到某种疾病的影响。还可以确定疾病的阶段(婴儿期、中期或晚期)。农作物病害极大地影响着农业从业人员的生计。食用这类农产品还会影响人类和动物的健康。人工监测这些疾病需要大量的时间和专业知识。因此,利用图像处理来检测疾病是一个更好的选择。它考虑了可能无法通过视觉确定的特征。以印度的番茄作物为例,它很容易受到由病原体、细菌、病毒和植物质体样生物引起的许多疾病的影响。由于这种疾病,制宪者蒙受了巨大损失。为了克服这一问题,人们正在进行大量的研究,利用图像处理和神经网络模型,利用无人机技术自动检测疾病。
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引用次数: 0
Fractional Order PIλDµ Control Design for a Class of Cyber-Physical Systems with Fractional Order Time-Delay models: Fractional PIλDµ Design for CPS with Time-Delay models 一类具有分数阶时滞模型的信息物理系统的分数阶PIλDµ控制设计:具有时滞模型的CPS的分数阶PIλDµ设计
Pub Date : 2019-07-01 DOI: 10.4018/ijcps.2019070101
Marwa Boudana, S. Ladaci, Jean-Jacques Loiseau
The control of cyber-physical systems (CPS) is a great challenge for researchers in control theory and engineering mainly because of delays induced by merging computation, communication, and control of physical processes. Consequently, control solutions for time-delay systems can be applied efficiently for many CPS system configurations. In this article, a fractional order PIλ and PIλDµ control design is investigated for a class of fractional order time-delay systems. The proposed control design approach is simple and efficient. The controller parameter's adjustment is achieved in two steps: first, the relay approach is used to compute satisfactory classical PID coefficients, namely kp, Ti and Td. Then, the fractional orders λ and µ are optimized using performance criteria. Simulation results show the efficiency of the proposed design technique and its ability to enhance the PID control performance.
网络物理系统(CPS)的控制是控制理论和工程研究人员面临的一个巨大挑战,主要是由于物理过程的计算、通信和控制合并而引起的延迟。因此,时滞系统的控制解决方案可以有效地应用于许多CPS系统配置。本文研究了一类分数阶时滞系统的分数阶PIλ和PIλ dµ控制设计。所提出的控制设计方法简单有效。控制器参数的调整分两步实现:首先,采用继电器方法计算出满意的经典PID系数kp、Ti和Td。然后,利用性能准则对分数阶λ和µ进行优化。仿真结果表明了所提设计方法的有效性和提高PID控制性能的能力。
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引用次数: 7
期刊
Int. J. Cyber Phys. Syst.
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