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2017 IEEE International Conference on Computational Intelligence and Virtual Environments for Measurement Systems and Applications (CIVEMSA)最新文献

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Towards a vision-based targeting system for counter unmanned aerial systems (CUAS) 反无人机系统(CUAS)基于视觉的目标瞄准系统研究
Amy R. Wagoner, D. Schrader, E. Matson
Unmanned aerial vehicles (UAVs) are rapidly increasing in popularity. Despite attempts at regulation, stopping small, Class 1 (typically hobby-grade) UAVs from entering protected or sensitive airspace is an unsolved problem. Many companies and researchers offer a piece of a solution, but as of this writing, there is no publicly available, feasible, end-to-end solution. Ultimately, what is needed is a sensor-based system that autonomously detects, tracks, and neutralizes/disables an incoming UAV. However, such a system is currently not available, so as development toward that goal continues, a temporary solution is required. Augmenting the skill, dexterity, and processing power of human pilots with inexpensive cameras and computer vision algorithms can offer such a solution. The foundations of a framework for a system that uses computer vision to target and ultimately destroy a target in mid-air is introduced. The proposed solution utilizes a light-weight, inexpensive UAV with an on-board camera. The detection and tracking is performed in real-time on a companion computer mounted to the frame of the vehicle, with ROS as the primary communication infrastructure. Initial simulations provide insight into the feasibility of using computer vision with a monocular camera to offer reliable assistance to the pilot.
无人驾驶飞行器(uav)正在迅速普及。尽管试图进行监管,但阻止小型1级(通常是业余级)无人机进入受保护或敏感空域仍是一个未解决的问题。许多公司和研究人员提供了解决方案的一部分,但在撰写本文时,还没有公开可用的、可行的端到端解决方案。最终,需要的是一种基于传感器的系统,该系统可以自主检测、跟踪和中和/禁用来袭无人机。然而,这样的系统目前还不可用,因此,随着朝着这一目标的发展,需要一个临时的解决方案。用廉价的相机和计算机视觉算法来增强人类飞行员的技能、灵活性和处理能力,可以提供这样的解决方案。介绍了利用计算机视觉对空中目标进行定位并最终摧毁的系统框架的基本原理。提出的解决方案利用一种重量轻、价格低廉的无人机,带有机载摄像头。探测和跟踪在安装在车辆框架上的配套计算机上实时执行,ROS作为主要通信基础设施。最初的模拟可以深入了解使用计算机视觉和单目摄像头为飞行员提供可靠帮助的可行性。
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引用次数: 4
Possibility theory in image processing 图像处理中的可能性理论
O. Strauss
Digital image processing refers to the set of algorithms used to transform, filter, enhance, modify, analyze, distort, fuse, etc., digital images. Most of these algorithms are designed to mimic an underlying physical operation defined in the continuous illumination domain and formerly achieved via optical or electronic filters or through manipulations, including painting, cutting, moving or pasting of image patches. It also allows more sophisticated transformations (associated to more or less complex algorithms) which would be impossible to process by analog means. It may be quite hard to completely transpose an operation from the continuous to the discrete domain. Such a transposition usually relies on methods that ensure a kind of interplay between continuous and discrete domains. The interplay between the continuous and the discrete domain usually involves a convolution with a point spread function, when the measurement model is supposed to be linear, while the interplay between the discrete and the continuous domain is ensured by interpolation or more generally approximation methods, which also involve a convolution with a reconstruction kernel. Performing a precise identification of the point spread function of an imager is usually pretty challenging. Moreover, modeling the imaging process by a point spread function could be considered as an approximation of a more complex (and not shift-invariant) phenomenon (e.g. radial distortion or chromatic aberrations).
数字图像处理是指对数字图像进行变换、滤波、增强、修改、分析、扭曲、融合等处理的一组算法。这些算法中的大多数被设计为模拟在连续照明域中定义的底层物理操作,以前通过光学或电子滤波器或通过操作实现,包括绘画,切割,移动或粘贴图像补丁。它还允许更复杂的转换(与或多或少复杂的算法相关联),这是通过模拟手段无法处理的。将一个运算从连续域完全转置到离散域可能是相当困难的。这种转换通常依赖于确保连续域和离散域之间相互作用的方法。当测量模型假设为线性时,连续域与离散域之间的相互作用通常涉及与点扩展函数的卷积,而离散域与连续域之间的相互作用则通过插值或更一般的近似方法来保证,这些方法还涉及与重建核的卷积。对成像仪的点扩散函数进行精确的识别通常是相当具有挑战性的。此外,通过点扩散函数对成像过程进行建模可以被认为是更复杂(而不是移位不变)现象(例如径向畸变或色差)的近似。
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引用次数: 0
Distributed to embedded Bayesian Network for diagnosis of a networked robot 分布式到嵌入式贝叶斯网络,用于网络化机器人的诊断
Insaf Sassi, Alexia Gouin, J. Thiriet
Mobile networked robots are distributed systems controlled by a distant station i.e, the controller is implemented on a control station. The main mission of the mobile robot is reaching a target position starting from an initial one while receiving the instructions from the control station via a wireless network. The wireless network is characterized by a stochastic behavior and is sensitive to perturbations. The unreliability of wireless networks does not guarantee data transmission between system components (the robot and the station) which can cause system performance degradation. A distributed Bayesian Network (BN) was proposed in previous work to monitor and diagnose the system performance and to model causal uncertainties between failures. The developed BN is a modular Bayesian Network (MBN) which is composed of three Bayesian modules shared between the robot and the control station. In the case of system performance degradation because of a bad network state, the robot switches to embedded controller implemented on-board (autonomous behavior). The distributed diagnosis architecture must be updated and the diagnosis tool becomes embedded on the robot. A procedure of BNs assembly is described in this work in order to implement one monolithic BN on-board. The obtained monolithic BN is the result of combining two Bayesian modules from the modular Bayesian Network: the control and the operative Bayesian modules.
移动联网机器人是由远程站控制的分布式系统,即控制器在控制站上实现。移动机器人的主要任务是从初始位置开始到达目标位置,同时通过无线网络接收控制站的指令。无线网络具有随机特性,对扰动很敏感。无线网络的不可靠性不能保证系统组件(机器人和工作站)之间的数据传输,这可能导致系统性能下降。在以前的工作中,提出了一种分布式贝叶斯网络(BN)来监测和诊断系统性能,并对故障之间的因果不确定性进行建模。所开发的贝叶斯网络是一种模块化贝叶斯网络(MBN),由机器人和控制站共享的三个贝叶斯模块组成。在由于网络状态不良导致系统性能下降的情况下,机器人切换到实现板载的嵌入式控制器(自主行为)。必须更新分布式诊断架构,并将诊断工具嵌入机器人中。为了实现单片板上的单片BN,本文描述了BN的组装过程。得到的单片贝叶斯网络是将模块化贝叶斯网络中的两个贝叶斯模块:控制贝叶斯模块和操作贝叶斯模块结合在一起的结果。
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引用次数: 0
Sensing principle for real-time characterization of viscoelasticity in the beating myocardial tissue 实时表征跳动心肌组织粘弹性的传感原理
Amir Hooshiar, M. Razban, N. Bandari, J. Dargahi
This study was aimed to prove the conceptual basis of a new sensing principle, capable of characterizing the viscoelastic properties of beating myocardial tissue. In this regard, a sensing principle based on the spontaneous contact between the beating cardiac wall and a force-displacement sensor was proposed. A multi-parameter, mass-spring mechanical model of myocardial tissue was proposed. A series of experiments, resembling the sensor function and the cardiac wall motion was setup. The mechanical response of the model subjected to the boundary condition from the experiments was simulated. The results of the simulation were analyzed against variation in the model parameters and the cardiac wall velocity. The model with the best fitting parameters was then subjected to higher cardiac wall velocity to predict the contact force. The model could fit the experimental results with up to 97.9% resemblance and could predict the contact force for with up to 95.1% similarity. The significant similarity of the simulated results with the experiments could prove the consistency of the proposed mechanism. Moreover, the fast and repeatable computations for the sensing principle enables this method to be a good candidate for integration into the cardiac robotic surgeries.
本研究旨在证明一种新的传感原理的概念基础,能够表征跳动心肌组织的粘弹性特性。为此,提出了一种基于心跳壁与力-位移传感器自发接触的传感原理。提出了心肌组织多参数质量-弹簧力学模型。建立了一系列类似于传感器功能和心壁运动的实验。模拟了模型在实验边界条件下的力学响应。根据模型参数和心壁流速的变化对仿真结果进行了分析。将拟合参数最佳的模型置于较高的心壁速度下进行接触力预测。模型拟合实验结果的相似度达97.9%,预测接触力的相似度达95.1%。仿真结果与实验结果具有显著的相似性,证明了所提机理的一致性。此外,该传感原理的快速和可重复计算使该方法成为集成到心脏机器人手术中的一个很好的候选者。
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引用次数: 13
Uncertainty management of situations in a housing use context 住房使用情境的不确定性管理
Cedric Deffo Sikounmo, S. Perrin, E. Benoit
This paper proposes a new contribution to manage uncertainty in the context of a situation recognition. It gives an application to the measurement of housing use situations. It extends a previous communication that proposes an ontological based model of situations. In this model, a situation is a set of entities linked by relationships themselves determined using sensors. However, such model doesn't allow to manage uncertainty. In order to take into account an uncertainty related to the identification of some entities, we propose to model the set of possible eligible entities, called the universe of discourse, by an anonymous instance in the ontology. This anonymous instance is linked with a “same as” relationships with all possible eligible entities. In addition, we propose to complete this model by the association of a mass with each “same as” relationship. This paper presents a probabilistic semantic to these masses. A simple didactic example on a housing use situations measurement illustrates the presented approach.
本文提出了一种新的方法来管理情境识别中的不确定性。它在房屋使用情况的测量中具有一定的应用价值。它扩展了先前的通信,提出了基于本体论的情景模型。在这个模型中,情况是一组实体,它们之间的关系是由传感器确定的。然而,这样的模型不允许管理不确定性。为了考虑到与某些实体识别相关的不确定性,我们建议通过本体中的匿名实例对可能符合条件的实体集(称为话语域)进行建模。此匿名实例与所有可能的符合条件的实体以“相同”关系链接。此外,我们建议通过将质量与每个“相同”关系相关联来完成该模型。本文对这些质量给出了一个概率语义。一个关于住房使用情况测量的简单教学示例说明了所提出的方法。
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引用次数: 0
Phonocardiogram classification based on MFCC extraction 基于MFCC提取的心音图分类
Othmane El Badlaoui, A. Hammouch
In this work, a simple method for separation between normal and abnormal heart sounds (Phonocardiogram) is presented. Mel-Frequency Cepstral Coefficients (MFCC) are extracted from two different datasets of heartbeats. Several Classifiers, such as, Support Vectors Machine (SVM), K-Nearest Neighbors (KNN), Naïve Bayes (NB), Classification Tree (CT) and discriminative analysis (DA), are used. Simulation results obtained from yielding methods are compared and discussed. The developed method (scheme) return good results from deferent dataset. Results obtained by using different classification methods versus two dataset are, significantly, accurate compared to the existing methods.
在这项工作中,提出了一种简单的分离正常和异常心音的方法(心音图)。从两个不同的心跳数据集提取Mel-Frequency倒谱系数(MFCC)。使用了支持向量机(SVM)、k近邻(KNN)、Naïve贝叶斯(NB)、分类树(CT)和判别分析(DA)等几种分类器。对各种屈服方法的仿真结果进行了比较和讨论。所开发的方法(方案)从不同的数据集返回良好的结果。与现有方法相比,使用不同的分类方法对两个数据集进行分类得到的结果具有显著的准确性。
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引用次数: 5
A redundancy measure for efficient fuzzy rule-base reduction 一种有效模糊规则基约简的冗余度量
Liviu-Cristian Duţu, J. Tissot, Stéphanie Dabic, G. Mauris, P. Bolon
Driven by the growing complexity of real-world systems, current trends in fuzzy system modeling employ ways to automatically learn the system rule-base from numerical data. While these approaches greatly improve model accuracy, the resulting rule-base is generally less interpretable than expert-driven rule-bases. We provide qualitative justification for this behavior and show that automatic rule-base generation leads to the occurrence of redundant rules, i.e. rules encoding approximately the same knowledge. In order to improve interpretability, redundant rules must be properly detected and removed. Therefore, this paper introduces a novel measure to estimate the redundancy of fuzzy rules based on the common influence exerted by a pair of rules over the data, and weighted by some distance measure between rules. The concept of common influence, defined therein, indicates how two rules are linked by the data distribution. Our approach is validated on some analytical function modeling task and then tested on a real-world problem dealing with vibrotactile stimuli characterization. Both experiments showed that removing the most redundant rules, according to the proposed redundancy measure, yields smaller rule-bases of up to 25%, with only negligible drops in accuracy.
由于现实世界系统日益复杂,目前模糊系统建模的趋势是采用从数值数据中自动学习系统规则库的方法。虽然这些方法极大地提高了模型的准确性,但是所得到的规则库通常不如专家驱动的规则库可解释。我们为这种行为提供了定性的理由,并表明自动规则库生成导致冗余规则的出现,即编码近似相同知识的规则。为了提高可解释性,必须正确地检测和删除冗余规则。因此,本文引入了一种新的模糊规则冗余度估计方法,该方法基于规则对数据的共同影响,并用规则之间的距离度量进行加权。其中定义的共同影响的概念表明了两个规则如何通过数据分布联系起来。我们的方法在一些分析函数建模任务上得到了验证,然后在处理振动触觉刺激表征的现实问题上进行了测试。两个实验都表明,根据提出的冗余度量,删除最冗余的规则可以产生更小的规则库,最多可达25%,而准确性的下降可以忽略不计。
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引用次数: 1
A possibilistic framework for identifying the performance to be improved in the imprecise context of preliminary design stage 在初步设计阶段的不精确背景下,确定需要改进的性能的可能性框架
Diadié Sow, A. Imoussaten, P. Couturier, J. Montmain
In a highly competitive and unstable environment, manufacturers must constantly improve their products to remain competitive and satisfy their customers while minimizing incurred costs and risk taking. At the early stages of (re-) engineering, performances forecasting of new product is complicated. Indeed, the impacts of any characteristic change on the product performance are not precisely known. Decision-makers must thus identify the performances to be improved while limiting the engineering efforts spent on innovative upgrades. Although some theoretical worth indexes have been proposed in the multiple criteria literature to estimate the expectable gains when improving changes are planned, they generally rely on non-realistic assumptions on the achievability of the expected improvements. Based on multi-criteria decision analysis techniques and uncertainty theory, this paper proposes an extension of the worth index concept when the likelihood of the expected improvements is not precisely known as it is the case at the preliminary stages of design activities.
在高度竞争和不稳定的环境中,制造商必须不断改进他们的产品,以保持竞争力和满足客户,同时最大限度地降低成本和风险。在(再)工程的早期阶段,新产品的性能预测是一个复杂的问题。事实上,任何特性变化对产品性能的影响都是不精确的。因此,决策者必须确定需要改进的性能,同时限制在创新升级上花费的工程努力。虽然在多准则文献中提出了一些理论价值指标来估计计划改进变更时的预期收益,但它们通常依赖于对预期改进可实现性的非现实假设。基于多准则决策分析技术和不确定性理论,本文提出了价值指标概念的扩展,当预期改进的可能性并不精确地知道,因为它是在设计活动的初步阶段。
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引用次数: 2
Wireless sensors network for landslides prevention 防止滑坡的无线传感器网络
R. Romdhane, Youness Lami, D. Genon-Catalot, N. Fourty, A. Lagrèze, D. Jongmans, L. Baillet
Landslides, of slip/cast type, dynamics are mainly characterised by a sudden solid to fluid transition during heavy rain events. This feature makes them rather difficult to predict and therefore remains a major threat to nearby populated valleys. Our multidisciplinary partnership between laboratories (ISTerre: earth science and LCIS: embedded electronics, telecommunication) aims at developing a new predictive tool in order to analyse field movements using sensors. The plan is to instrument unstable slopes with a sensors network, characterised by its low consumption and cost, in order to achieve continuous monitoring of the overall shape deformation. Other monitoring techniques can be used for this particular phenomenon (photogrammetry, LIDAR …), but some significant imperfections and flaws lay within their usage. This paper presents the methods used to enable geolocation using our wireless sensors network based on LoRa (Long Range) radio transmission technology.
滑/抛型滑坡的动力学特征主要是在暴雨期间突然由固体转变为流体。这一特点使得它们很难预测,因此仍然是附近人口稠密的山谷的主要威胁。我们实验室之间的多学科合作伙伴关系(ISTerre:地球科学和LCIS:嵌入式电子,电信)旨在开发一种新的预测工具,以便使用传感器分析现场运动。该计划是用传感器网络来测量不稳定的斜坡,其特点是低消耗和低成本,以实现对整体形状变形的连续监测。其他监测技术也可以用于这种特殊现象(摄影测量、激光雷达……),但它们的使用存在一些明显的缺陷和缺陷。本文介绍了利用基于LoRa(远程)无线电传输技术的无线传感器网络实现地理定位的方法。
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引用次数: 17
A Neural Networks portable and Agnostic Implementation Environment for Business Transformation Projects the basic structure 一个神经网络可移植且不可知的业务转换项目实现环境的基本结构
A. Trad, D. Kalpić
The authors based their Research and Development Project (RDP) on a mixed research method that is mainly based on intelligent neural networks and action research reasoning approach; where both methods are very similar and resemble to the human brain structure and its way of functioning. The applied research method is founded on a real life case for detecting and processing heuristic algorithms for business transformation patterns using a high level neural network implementation environment. The proposed RDP offers a set of solutions in the form of technical and managerial recommendations, to be used by company's business analysts and engineers to implement intelligent solutions for services-based Business Transformation Projects (BTP). Action Research (AR) is applied mainly in education research that corresponds to the Architecture Transformation Projects (ATP) or BTP's capability to achieve business intelligence objectives, because it inspects and learns from configurable intelligent micro artefacts that are found in the proposed neural networks concept that can be applied to BTPs' implementation phase [4]. The RDP is not influenced by any specific business domain and is considered to be generic and holistic; where a brain-like neural networks business infrastructure is based on: 1) Neural Networks and Enterprise Architecture's (NNEA); and 2) Agnostic Implementation Environment (AIE). This NNEA is based on a reasoning concept that is basically a qualitative research method that manages and qualifies Critical Success Factors (CSF) sets, actions and final solutions for the BTPs support [5]. The RDP's underlined system supports the BTPs in integrating micro artefact scenarios that are in fact a set of interactive atomic service actions. AIE manages atomic services that makes them more advanced and more flexible than the rigid and monolithic micro services proposal.
基于智能神经网络和行动研究推理方法的混合研究方法的研究开发项目(RDP);这两种方法都非常相似,类似于人类大脑的结构和运作方式。应用研究方法基于实际案例,利用高级神经网络实现环境对业务转换模式的启发式算法进行检测和处理。建议的RDP以技术和管理建议的形式提供了一组解决方案,供公司的业务分析师和工程师用于实现基于服务的业务转换项目(BTP)的智能解决方案。行动研究(AR)主要应用于与体系结构转换项目(ATP)或BTP实现商业智能目标的能力相对应的教育研究中,因为它检查并学习可应用于BTP实现阶段[4]的提议的神经网络概念中发现的可配置智能微工件。RDP不受任何特定业务领域的影响,被认为是通用的和整体的;其中类脑神经网络业务基础设施基于:1)神经网络和企业架构(NNEA);2)不可知论实现环境(AIE)。该NNEA基于推理概念,该概念基本上是一种定性研究方法,用于管理和限定btp支持[5]的关键成功因素(CSF)集、行动和最终解决方案。RDP的下划线系统支持btp集成微工件场景,这些场景实际上是一组交互原子服务操作。AIE管理原子服务,使它们比严格的单片微服务建议更高级、更灵活。
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引用次数: 11
期刊
2017 IEEE International Conference on Computational Intelligence and Virtual Environments for Measurement Systems and Applications (CIVEMSA)
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