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2021 International Conference on Disruptive Technologies for Multi-Disciplinary Research and Applications (CENTCON)最新文献

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Comprehensive Analysis of Fused Descriptors for Image Retrieval 融合描述符在图像检索中的综合分析
Ganesh A Siva Raja, Maddi Siddart, S. Kashyap, P. Ramadevi
Content Based Image Retrieval (CBIR) systems are used to retrieve similar images to the query image from a large database. This paper represents a CBIR model which has been tested with multiple feature descriptors such as Scale-Invariant Feature Transform (SIFT), Speeded Up Robust Features (SURF), Binary Robust Independent Elementary Features (BRIEF), Oriented FAST and rotated BRIEF (ORB) and combinations of them. Multiple linguistic processing techniques such as Bag of Words and Topic modelling have been used for optimizing the image retrieval and making them meaningful based on human semantics. Using a combination of descriptors and Latent Dirichlet Allocation, our model has proven to yield high precision when tested against standard image retrieval data set.
基于内容的图像检索(CBIR)系统用于从大型数据库中检索与查询图像相似的图像。提出了一种基于尺度不变特征变换(SIFT)、加速鲁棒特征(SURF)、二值鲁棒独立基本特征(BRIEF)、定向FAST和旋转BRIEF (ORB)及其组合的CBIR模型。多种语言处理技术,如词袋和主题建模,已被用于优化图像检索,使其具有基于人类语义的意义。使用描述符和潜在狄利克雷分配的组合,我们的模型在对标准图像检索数据集进行测试时已被证明具有很高的精度。
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引用次数: 0
IoT based Vehicle Over-Speed Detection and Accident Avoidance System 基于物联网的车辆超速检测和事故避免系统
Hari Chandan T., S. Nagaraju, Bharath Nandan Varma, K. M., M. S, Mukund K. V.
Vehicle over-speed detection and accident-avoidance system is an Internet of Things (IoT) based system which collects data via sensors such as ultrasonic sensors and alerts the driver. The sensor is mounted upon a microcontroller i.e. Arduino which is responsible for the sensors to work. This system consists of an Ultrasonic Sensor, Arduino UNO, Potentiometer, CAN Controller, DC Motor, GSM, LCD display and a buzzer. The ultrasonic sensor detects the object/vehicle ahead of the vehicle and sends the data to Arduino UNO, if a particular vehicle is in close proximity to the front vehicle, the proposed system automatically controls the vehicle speed. This system also consists of an over-speed detection, which detects the speed and alerts the driver if the vehicle reaches a specific speed limit. Also, in the proposed system in case if driver overspeeds, an SMS alert would be sent to cab company or car rental agency concerned person's cellphone.
车辆超速检测和事故避免系统是一种基于物联网(IoT)的系统,它通过超声波传感器等传感器收集数据并提醒驾驶员。传感器安装在微控制器上,即Arduino,它负责传感器的工作。该系统由超声波传感器、Arduino UNO、电位器、CAN控制器、直流电机、GSM、LCD显示器和蜂鸣器组成。超声波传感器检测车辆前方的物体/车辆,并将数据发送到Arduino UNO,如果特定车辆靠近前方车辆,该系统将自动控制车辆速度。该系统还包括超速检测,它检测速度并在车辆达到特定速度限制时向驾驶员发出警报。此外,在该系统中,如果司机超速行驶,将向出租车公司或汽车租赁公司发送短信警报。
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引用次数: 1
Simulation of Indoor Localization and Navigation of Turtlebot 3 using Real Time Object Detection 基于实时目标检测的Turtlebot 3室内定位与导航仿真
Chandran Nandkumar, Pranshu Shukla, Viren Varma
This paper proposes a method for indoor localization and navigation of Turtlebot 3 using Real Time Object Detection (RTOD). The robot is capable of recognizing the room it is placed inside based on the knowledge of positions of certain fixed arbitrary objects. The robot then proceeds to understand its position inside the room and is capable of moving to other locations. The robot is simulated using the ROS and Gazebo framework. The RTOD is trained to identify certain distinct objects like a rover, bowl, quadcopter and wheel based on which the robot is able to ascertain its location.
提出了一种基于实时目标检测(Real Time Object Detection, RTOD)的Turtlebot 3室内定位与导航方法。机器人能够基于某些固定任意物体的位置知识来识别它所在的房间。然后,机器人继续了解自己在房间内的位置,并能够移动到其他位置。利用ROS和Gazebo框架对机器人进行仿真。RTOD经过训练,可以识别某些不同的物体,如漫游者、碗、四轴飞行器和轮子,机器人可以根据这些物体确定自己的位置。
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引用次数: 4
Design of IoT based Instrument Landing System 基于物联网的仪表着陆系统设计
K. B, R. N., Maniunatha K N, Girish P
Aircraft landing is a very important aspect for any aircraft be it a civil or a passenger aircraft. The key obstacle in aircraft is bad weather conditions such as fog, mist, rain. This makes it difficult for an aircraft to land accurately. The instrument landing system (ILS) is a ground-based approach that gives planes approaching the runway precise direction. To ensure a safe landing in bad weather, it uses a combination of high intensity lighting arrays and radio signals. The gliding scope array offers vertical guidance while the localizer provides lateral guidance. The marking beacons serve as a check on the guide slope's proper operation. The main objective is to minimize the systems to provide the same enhanced functionality. By comparing the proposed design of ILS with IoT to the existing GPS based system gives improved accuracy in terms of horizontal and vertical landing of an aircraft.
飞机着陆对任何飞机来说都是一个非常重要的方面,无论是民用飞机还是客机。飞机飞行的主要障碍是恶劣的天气条件,如雾、雾、雨。这使得飞机难以准确着陆。仪表着陆系统(ILS)是一种基于地面的方法,为接近跑道的飞机提供精确的方向。为了确保在恶劣天气下安全着陆,它结合了高强度照明阵列和无线电信号。滑动瞄准镜阵列提供垂直制导,而定位器提供横向制导。标记信标用于检查导坡的正常运行。主要目标是最小化系统以提供相同的增强功能。通过将提出的物联网ILS设计与现有的基于GPS的系统进行比较,可以提高飞机水平和垂直降落的精度。
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引用次数: 1
Early Warning Signs of Resourcing in Global Software Development Projects 全球软件开发项目资源配置的早期预警信号
Spoorthi K V, Nagaraj G Cholli
The term “Global software development” refers to the process of creating software program which reduces development cost in any company. GSD helps agencies to leverage the blessings of multi-site improvement with respect to time, value and access to skilful aid. Current research shows that half of the businesses which have attempted international software program development have not realized the anticipated results. Software program projects are increasing number from nations with high prices to reduced offshore countries. They continue to delight in poor overall performance issues because of the inherent complexity and unpredictability of computer program jobs. The main motivation to write survey paper is to identify GSD-related issues and also mitigating solutions. This paper discusses the idea of early caution signs (EWS) to improve mission achievement rates, mainly in the precise onshore-offshore undertaking environment, which is exposed to higher task dangers. EWS provides a way to undertake assessment during initial stages. Several techniques and measures are recommended to control the failure of the project. As a result, understanding the potential difficulties and possible mitigation methods for GSD is critical to a project's success. This structure can be used as a starting point for further study of GSD.
“全球软件开发”一词指的是在任何公司中创建降低开发成本的软件程序的过程。GSD帮助机构在时间、价值和获得技术援助方面利用多站点改进的祝福。目前的研究表明,有一半尝试过国际化软件开发的企业并没有实现预期的结果。越来越多的软件项目从价格高的国家转移到离岸较少的国家。由于计算机程序工作固有的复杂性和不可预测性,他们继续对糟糕的整体性能问题感到高兴。撰写调查报告的主要动机是确定与gsd相关的问题以及缓解解决方案。本文主要在任务危险性较高的精确海陆作业环境中,讨论了预警信号(EWS)提高任务完成率的思想。EWS提供了一种在初始阶段进行评估的方法。介绍了几种控制工程失效的技术和措施。因此,了解GSD的潜在困难和可能的缓解方法对项目的成功至关重要。该结构可以作为进一步研究GSD的起点。
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引用次数: 0
Wideband characteristics of Modified Elliptical Monopole Antenna Fed with CPW for Wideband Applications 宽带用CPW馈电改进椭圆单极天线的宽带特性
C. Krishna, B. A. Pravalli, S. J. Rao, N. Murthy
In this paper, modified elliptical antenna is designed on FR - 4 epoxy substrate material having dielectric constant 4.4 and its loss tangent 0.02 is proposed for wideband applications. Conventional elliptical patch antenna with Co-planar waveguide (CPW) feed attains Ultra - wide band (UWB) characteristics ranging from 5.70 - 13.96GHz to cover C - & X - band applications. Elliptical geometry can be modified into rings shape to obtain impedance bandwidth (IBW) 1.32GHz and 1.18GHz at dual resonances 6.44GHz and 9.04GHz. In order to enhance the wideband by employing concentric ring inside the elliptic structure in addition by loading stubs. This proposed design achieves tri-wide band characteristics having impedance bandwidths 460MHz (3.83-4.29GHz), 1.83GHz (4.62-6.45GHz), 9.03GHz (7.45-16.5GHz) respectively at 4.05GHz, 5.96GHz and 14.42GHz. The proposed antenna has unique and omni -directional radiation characteristics with negligible side lobes. The proposed antenna overs C - band (WiMax, WLAN), X - band (Satellite and radar communication) and Ku-band such as weather and ship radars applications.
本文在介电常数为4.4的FR - 4环氧基板材料上设计了改进椭圆天线,提出了其损耗正切值为0.02的宽带应用方案。采用共面波导(CPW)馈电的传统椭圆贴片天线可实现5.70 - 13.96GHz的超宽带(UWB)特性,覆盖C和X波段应用。在6.44GHz和9.04GHz双谐振下,可以将椭圆几何形状修改为环形,获得1.32GHz和1.18GHz的阻抗带宽(IBW)。为了提高宽带性能,在椭圆结构内采用同心圆环外加加载短桩。本设计在4.05GHz、5.96GHz和14.42GHz下实现了阻抗带宽分别为460MHz (3.83-4.29GHz)、1.83GHz (4.62-6.45GHz)、9.03GHz (7.45-16.5GHz)的三宽带特性。该天线具有独特的全向辐射特性,侧瓣可忽略不计。建议的天线覆盖C波段(WiMax, WLAN), X波段(卫星和雷达通信)和ku波段(如气象和船舶雷达)应用。
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引用次数: 0
Analyzing the Diagnostic Efficacy of Deep Vision Networks for Malignant Skin Lesion Recognition 深度视觉网络在恶性皮肤病变识别中的诊断效果分析
M. Pranav, C. Koushik, Shreyas Madhav A V, S. Ganapathy
Cancerous skin lesions affect millions of people worldwide each year and is one of the most treatable forms of cancer. While intensive biopsy testing and processing is required to confirm the presence of a malignant skin lesion, the detection of skin lesions by dermatologists on the primary level has always been based upon visual markers and sight-based perception based upon a defined set of diagnostic rules. The automation of this classification process has been achieved in the past for traditional machine learning algorithms and novel deep networks but faces challenges when the diagnosis is performed upon images of varied illumination and spatial orientation. This paper proposes a novel ensemble approach towards skin lesion classification by employing transfer learned pretrained deep learning image networks for the automated diagnosis process. Popular ImageNet Trained Networks such as DenseNet, Inception ResNetV2, VGG16 and MobileNet have been individually fine-tuned, tested and evaluated for identifying the type of skin lesion. A final integration of the best ensemble combination was performed based upon a search- based strategy to find the optimal combination for maximal reliability. The system was tested against benchmark datasets including HAM1000 and ISIC, showcasing an accuracy of 90%, precision of 0.895, and recall of 0.89 and the proposed combinational network showcases significantly better results than several existent state of the art skin cancer classification models in terms of accuracy, precision and recall.
癌症性皮肤病变每年影响全世界数百万人,是最可治疗的癌症之一。虽然需要密集的活检测试和处理来确认恶性皮肤病变的存在,但皮肤科医生在初级水平上对皮肤病变的检测一直是基于视觉标记和基于一套定义的诊断规则的基于视觉的感知。在过去,传统的机器学习算法和新型深度网络已经实现了这种分类过程的自动化,但是当对不同光照和空间方向的图像进行诊断时,面临着挑战。本文提出了一种新的皮肤病变分类集成方法,该方法采用迁移学习预训练深度学习图像网络进行自动诊断。流行的ImageNet训练网络,如DenseNet、Inception ResNetV2、VGG16和MobileNet,已经分别进行了微调、测试和评估,以识别皮肤病变的类型。基于搜索策略对最佳集成组合进行最终集成,以找到最大可靠性的最优组合。该系统在HAM1000和ISIC等基准数据集上进行了测试,准确率为90%,精密度为0.895,召回率为0.89,所提出的组合网络在准确率、精密度和召回率方面都明显优于现有的几种皮肤癌分类模型。
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引用次数: 1
Investigating the Factors affecting use of Mobile Learning (M-learning) among Students of Higher Education Institutions 高等院校学生使用移动学习的影响因素调查
Rajratan Gupta
This paper is based on theory of technology acceptance model (TAM) approach and tries to explore the use of M-learning based on the technology acceptance model. This paper investigates what role the perceived usefulness, perceived ease of use along-with one more factor the facilitating conditions play towards determining the behavioral intention to use of M-learning by university students. This study found that all three factors have a positive effect on the use of M-learning by university students. Further, perceived ease of use factor has been found as most influencing factor affecting the use of M-learning. The findings and suggestions of this study would be helpful in developing appropriate mechanism / policy / guidelines aiming to improve the overall learning experience of students by using the M-learning approach.
本文以技术接受模型(TAM)方法为理论基础,尝试探索基于技术接受模型的移动学习的应用。本文研究了感知有用性、感知易用性以及促进条件在决定大学生使用移动学习的行为意愿方面所起的作用。本研究发现,这三个因素都对大学生使用移动学习有积极的影响。此外,感知易用性因素是影响移动学习使用的最重要因素。本研究的发现和建议将有助于制定适当的机制/政策/指导方针,旨在通过使用移动学习方法改善学生的整体学习体验。
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引用次数: 0
Study of Loss Functions on Retinal Vessel Segmentation using UNET Architecture 基于UNET结构的视网膜血管分割损失函数研究
Chongtham Cha Chinglemba, Primakov Chungkham
Using deep learning in image segmentation is gaining popularity with many industries adopting it and many researchers working to improve its performance. One of the areas where image segmentation is used is in medical image segmentation where a region of interest is segmented from a medical image. One of the key aspects that determine the performance of a deep learning model used to perform segmentation task is its loss functions used in training the model. This paper aims to compare the performances of a unet model in segmenting the vessels of a fundus image using different popularly used loss functions. Combinations of some of the loss functions are also used to train the model and their performances are also studied.
在图像分割中使用深度学习越来越受欢迎,许多行业都采用了它,许多研究人员都在努力提高其性能。使用图像分割的领域之一是医学图像分割,从医学图像中分割出感兴趣的区域。决定用于执行分割任务的深度学习模型性能的关键方面之一是在训练模型时使用的损失函数。本文旨在比较unet模型在使用不同的常用损失函数分割眼底图像血管时的性能。同时,利用损失函数的组合来训练模型,并对其性能进行了研究。
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引用次数: 0
Camera based real time distress monitoring system for geriatric people 基于摄像机的老年人实时遇险监测系统
S. P
Technological advancement in wireless communications, wireless sensors and emergence of Internet of Things (IOT) has helped in improving the quality of life. Enabling technologies like Bluetooth low energy (BLE) is essential to lodge intelligence in the smart device. By combining BLE, IOT, wireless sensor networks and wireless communication simple and efficient smart devices can be designed and developed. This paper focuses on developing a distress monitoring system for geriatric people based on the stress levels they encounter or on their body posture under unsafe conditions. The unsafe conditions can either be an attack on them or some health-related issues. The system consists of a wrist band with sensors, fall detector, bracelet camera and a smart phone to provide user interface.
无线通信、无线传感器、物联网(IOT)等技术的进步,提高了人们的生活质量。启用低功耗蓝牙(BLE)等技术对于智能设备中的智能至关重要。通过结合BLE、IOT、无线传感器网络和无线通信,可以设计和开发简单高效的智能设备。本文的重点是开发一种基于老年人在不安全条件下遇到的压力水平或他们的身体姿势的窘迫监测系统。不安全的条件可能是对他们的攻击,也可能是一些与健康有关的问题。该系统由带传感器的腕带、跌倒探测器、手环摄像头和提供用户界面的智能手机组成。
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引用次数: 0
期刊
2021 International Conference on Disruptive Technologies for Multi-Disciplinary Research and Applications (CENTCON)
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