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Detection of Breast Region of Interest via Breast MR Scan on an Axial Slice 乳腺mri轴向扫描对乳腺感兴趣区域的检测
Pub Date : 2020-06-30 DOI: 10.18100/ijamec.679142
G. Çetinel, F. Mutlu, Sevda Gül
Breast cancer is one of the most common cancer types especially met in women. The number of breast cancer patients increases every year. Thus, to detect breast cancer at its early stages gains importance. Breast region detection is the pioneering step of breast cancer diagnosis researches performed via image processing techniques. The performance of computer-aided breast cancer diagnosis systems can be improved by exactly determining the breast region of interest. In this study, the goal is to determine a region of interest for breast MR images, in which one or more lesion can appear. The achieved region includes two breasts and lymph nodes. The proposed region of interest detection system is fully automatic and it utilizes several image processing techniques. At first, the local adaptive thresholding technique is applied to the noise-filtered grey level breast magnetic resonance images taken with ethical permissions from Sakarya Education and Research Hospital. After adaptive thresholding, connected component analysis is performed to exclude extra structures around the breast region as thorax area. This analysis selects the largest area in the binary image which corresponds to a gyrate region including breast area and lymph nodes over the backbone. Then, the integral of horizontal projection is calculated to determine an optimum horizontal line that allows setting the region of interest apart. In the following step, sternum midpoint is detected to separate the right breast from the left one. Finally, a masking operation is applied to get corresponding right and left breast regions in the original MR image. To evaluate the performance of the proposed study, the results of automatic region of interest detection system are compared with the manual region of interest selection performed by an expert radiologist. Dice similarity coefficient and Jaccard coefficient are used as performance criteria. According to the results, the proposed system can detect region of interest for computer-aided breast cancer diagnosis researches, exactly.
乳腺癌是最常见的癌症类型之一,尤其是在女性中。乳腺癌患者的数量每年都在增加。因此,在早期阶段检测乳腺癌变得非常重要。乳房区域检测是通过图像处理技术进行乳腺癌诊断研究的开创性步骤。计算机辅助乳腺癌诊断系统的性能可以通过精确地确定感兴趣的乳房区域来提高。在这项研究中,目标是确定乳房MR图像的兴趣区域,其中一个或多个病变可能出现。完成的区域包括两个乳房和淋巴结。所提出的感兴趣区域检测系统是全自动的,它利用了多种图像处理技术。首先,将局部自适应阈值技术应用于Sakarya教育与研究医院伦理许可的噪声滤波后的灰度乳房磁共振图像。自适应阈值化后,进行连接分量分析,排除乳房周围多余的结构作为胸腔区域。该分析选择了二值图像中最大的区域,该区域对应于一个旋转区域,包括乳房区域和脊柱上方的淋巴结。然后,计算水平投影的积分,以确定一个最佳的水平线,允许设置感兴趣的区域分开。在接下来的步骤中,检测胸骨中点,将右乳房与左乳房分开。最后,对原MR图像进行掩蔽处理,得到相应的左右乳房区域。为了评估所提出的研究的性能,将自动感兴趣区域检测系统的结果与放射科专家手动感兴趣区域选择的结果进行了比较。使用骰子相似系数和Jaccard系数作为性能标准。结果表明,该系统能够准确地检测出计算机辅助乳腺癌诊断研究的感兴趣区域。
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引用次数: 0
Modelling and Control of Proposed Two Dodecacopter Systems 两种十二旋翼机系统的建模与控制
Pub Date : 2020-06-30 DOI: 10.18100/ijamec.698462
Ş. Yıldırım, Nihat Çabuk, Veli Bakırcıoğlu
Nowadays, the use of multi-propellers has been increased, because of some basic advantages such as vertical take-off and landing, simple mechanical structure. In addition, different usage fields such as carrying an object and making video records over the cities. This paper exposes design and control of two different multi propeller systems and both systems have 12 rotors to carry more load. In first, all motors are arranged at identical angles in the same plane. In the other, the motors are mounted in two groups, eight and four in two different planes, the lower and upper. Flight performances of these two different UAVs were compared under disturbing effect. It was observed that the flight performances were close in the simulation study. Although the average and maximum of the position errors for three axes in the first model was less than the other, for the same propeller dimensions, the first model must have larger dimensions than the other in the context of the smallest vehicle dimensions.
由于多螺旋桨具有垂直起降、机械结构简单等基本优点,目前多螺旋桨的使用越来越多。此外,不同的使用领域,如携带物品和视频记录在城市。本文揭示了两种不同的多螺旋桨系统的设计和控制,两种系统都有12个转子来承载更多的载荷。首先,所有电动机在同一平面上以相同的角度布置。在另一种情况下,电动机被安装在两组,八个和四个在两个不同的平面上,下和上。比较了扰动作用下两种不同无人机的飞行性能。在模拟研究中,观察到飞行性能接近。虽然第一种模型中三轴位置误差的平均值和最大值小于另一种模型,但对于相同的螺旋桨尺寸,在最小车辆尺寸的情况下,第一种模型的尺寸必须大于另一种模型。
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引用次数: 2
The Role of Dysphonia and Voice Recordings in Diagnosis of Parkinson’s Disease 语音障碍和录音在帕金森病诊断中的作用
Pub Date : 2020-03-31 DOI: 10.18100/ijamec.679038
G. Çetinel, Elif Sarica, Alhasan Alkhatib
Parkinsonism is a syndrome that occurs as a combination of six cardinal signs; resting tremor, rigidity, bradykinesia, loss of postural reflex, flexion posture and freezing (motor block). Parkinson disease occurs with the loss of brain cells which are generating dopamine. The most important primary motor symptoms of Parkinson’s disease are shaking of hands, slowness of movement, and speech changes. Sound changes are not recognized at the early stages of the disease while it becomes evident at the progressive stages. However, speech changes can be detected with some acoustic parameters. This study aims to detect Parkinson’s disease by using voice recordings. In this study, 342 voice recordings that belong to 174 healthy subjects and 168 Parkinson’s disease patients are used. 21 features are extracted from each voice record. The classification of subjects as healthy or with Parkinson disease is achieved by using logistic regression, k-nearest neighboring and ensemble gentle boost techniques. Furthermore, ten-fold and leave-one-out cross validation techniques are applied to improve the performance and reliability of the classifier. Sensitivity, specificity, maximum and average accuracy values are calculated to evaluate the success of the system. The obtained results show that the proposed system can be utilized by the neurologists to diagnose Parkinson’s disease at its early stages.
帕金森氏症是一种综合征,它是六种主要症状的组合;静息性震颤、强直、运动迟缓、姿势反射丧失、屈曲和冻结(运动阻滞)。帕金森氏症的发生伴随着产生多巴胺的脑细胞的丧失。帕金森氏症最重要的原发性运动症状是手抖、动作缓慢和言语改变。在疾病的早期阶段无法识别声音变化,而在进展阶段变得明显。然而,语音变化可以通过一些声学参数来检测。这项研究旨在通过录音来检测帕金森病。本研究使用了174名健康受试者和168名帕金森病患者的342段录音。从每个语音记录中提取21个特征。采用逻辑回归、k近邻和集合温和提升技术对健康或帕金森病患者进行分类。此外,采用十倍交叉验证和留一交叉验证技术来提高分类器的性能和可靠性。计算灵敏度、特异度、最大和平均精度值,以评估系统的成功。结果表明,所提出的系统可以被神经科医生用于帕金森病的早期诊断。
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引用次数: 0
Malware Visualization Techniques 恶意软件可视化技术
Pub Date : 2020-03-31 DOI: 10.18100/ijamec.526813
Ahmet Efe, S. Hussin
Malware basically means malicious software that can be an intrusive program code or anything that is designed to perform malicious operations on system and executes malicious actions such as clandestine, listening, monitoring, saving, and deleting without the user's knowledge and consent. Malware review and analysis requires an advanced level of programming knowledge, in-depth file systems knowledge, deep code inspection, and reverse engineering capability. New techniques are needed to reduce indirect costs of malware analysis. This paper aims to provide insights into the malware visualization techniques and its applications, most common malware types and the extracted features that used to identify the malware are demonstrated in this study. In this work, Systematic Literature Review (SLR) conducted to investigate the current state of knowledge about Malware detection techniques, data visualization and malware features. An advanced research has been carried out in most relevant digital libraries for potential published articles. 90 preliminary studies (PS) were determined on the basis of inclusion and exclusion criteria. The analytical study is based mainly on the PSs to achieve the goals. The results clarify the importance of visualization techniques and which are the most common malware as well as the most useful features. Several ways to visualize malware to help malware analysts have been suggested.
恶意软件基本上是指恶意软件,它可以是一种侵入性程序代码或任何旨在对系统执行恶意操作的东西,并在未经用户知情和同意的情况下执行诸如秘密、监听、监视、保存和删除等恶意操作。恶意软件的审查和分析需要高级的编程知识、深入的文件系统知识、深入的代码检查和逆向工程能力。需要新的技术来减少恶意软件分析的间接成本。本文旨在提供对恶意软件可视化技术及其应用的见解,在本研究中展示了最常见的恶意软件类型和用于识别恶意软件的提取特征。在这项工作中,系统文献综述(SLR)对恶意软件检测技术、数据可视化和恶意软件特征的现状进行了调查。在大多数相关的数字图书馆中,对潜在发表的文章进行了先进的研究。根据纳入和排除标准确定了90项初步研究(PS)。分析性研究主要是基于PSs来实现目标。结果阐明了可视化技术的重要性,以及哪些是最常见的恶意软件以及最有用的功能。已经提出了几种可视化恶意软件的方法来帮助恶意软件分析人员。
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引用次数: 3
CUDA Based Computation of Quadratic Image Filters 基于CUDA的二次图像滤波器计算
Pub Date : 2020-03-30 DOI: 10.18100/ijamec.652564
D. Akgün, Süleyman Uzun
Image processing applications usually requires nonlinear methods due to the nonlinear characteristics of images. Quadratic image filter which is a class of nonlinear image filters are widely used in practice such as noise elimination edge detection and image enhancement. On the other hand, second order products of the pixels make quadratic image filters computationally expensive to implement when compared to linear convolution. In the last decade, CUDA accelerated computing has been widely used in image processing applications to reduce computation times. In this study, an efficient method for the CUDA acceleration of the quadratic image filter has been implemented. For this purpose, alternative algorithms were examined comparatively since the performance of the GPU is sensitive to memory utilization. Because quadratic filter has a large number of coefficients and quadratic terms, the algorithm which utilizes the shared memory for storing image blocks provided the best throughput among the examined methods. Comparative results that were obtained using various images in different sizes show significant accelerations over sequential implementation.
由于图像的非线性特性,图像处理应用通常需要非线性方法。二次型图像滤波器是一类非线性图像滤波器,广泛应用于消噪、边缘检测和图像增强等领域。另一方面,与线性卷积相比,像素的二阶乘积使得二次图像滤波器的计算成本很高。在过去的十年中,CUDA加速计算被广泛应用于图像处理应用中,以减少计算时间。本研究实现了一种有效的二次图像滤波器CUDA加速方法。为此,由于GPU的性能对内存利用率很敏感,因此比较检查了替代算法。由于二次滤波器具有大量的系数和二次项,利用共享内存存储图像块的算法在所研究的方法中具有最好的吞吐量。使用不同尺寸的各种图像获得的比较结果显示,在顺序实现中有显着的加速度。
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引用次数: 0
Evaluation of Waiting Time and Transport Costs with Simulation in Urban Bus Transport 城市公交候车时间与运输成本的仿真评价
Pub Date : 2019-12-31 DOI: 10.18100/IJAMEC.621174
Emine Rumeysa Kocaer, H. Koruca, Samia Chehbi-Gamoura
It is important for both the bus owner and the passengers to determine the bus and minibus routes that are frequently used in urban passenger transport. Because the distance between the stops, the streets where the vehicle passes, the distance to reach the bus stop of passengers, how many minutes the bus will move, the waiting and transport time effects. Bus routes surround the entire residential area of the city as a network in various ways. The use of buses as a means of public transportation is preferred because it requires fewer infrastructure investments. The distance between stops, the population of settlements, the size/capacity of the bus and how many minutes the bus will move, determines the waiting time of passengers at the stop and duration of the tour. In this study, it is aimed to reduce bus operating costs and waiting times of passengers. Bus stops between Isparta center and Suleyman Demirel University West Campus, number and density of passengers, bus departure times and bus capacities were analyzed and modeled in the simulation software. As an alternative improvement scenario, buses with little and very passenger capacity were used and departure times were arranged. The effect of alternative scenarios on operating costs and waiting time was evaluated with the results obtained from simulation software.
确定城市客运中经常使用的公交和小巴路线对公交业主和乘客都很重要。因为车站之间的距离,车辆经过的街道,乘客到达公交车站的距离,公交将移动多少分钟,等待和运输时间的影响。公交线路以各种方式围绕着城市的整个住宅区形成一个网络。使用公共汽车作为公共交通工具是首选,因为它需要较少的基础设施投资。站点之间的距离,定居点的人口,公共汽车的大小/容量以及公共汽车移动的时间,决定了乘客在站点的等待时间和旅游的持续时间。本研究旨在降低巴士营运成本及乘客的等待时间。在仿真软件中对Isparta中心至Suleyman Demirel大学西校区之间的公交站点、乘客数量和密度、公交发车时间和公交运力进行了分析和建模。作为另一种改善方案,使用载客量很小或很大的巴士,并安排发车时间。利用仿真软件的结果,评估了备选方案对运行成本和等待时间的影响。
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引用次数: 0
The Importance of Fixed and Variable Angle in Solar Power Plants Analysis 固定角度和可变角度在太阳能电站中的重要性分析
Pub Date : 2019-12-31 DOI: 10.18100/ijamec.653371
O. Kilci, M. Koklu
The need for energy is increasing by the day. Renewable energy sources already have a significant place in electricity production both around the world and also in Turkey and the share of solar energy going higher within the renewable energy sources. Solar energy is extremely easy to use, it is preferable too because it is environmentally friendly-clean energy. Solar energy plant is the energy source of the future, because the production costs of solar plants are lower than other energy sources and the economic difficulties are overcome. To get optimal production, the solar energy plant must make maximum use of the sun. In the designed system, solar panels are provided with both fixed and seasonal variations. The first variations of solar panel systems is are placed at constant 25° angle and the position angle of second variation is shifted from 10° to 30°in summer and winter accordingly. In this study, the performance of 1148 kWp PV plants which is established in Altinekin district of Konya and planned to be connected to the grid was evaluated by PVSYST analysis program. Power generation of the two different systems, specific data and performance value are calculated. Result of the study shows that the seasonal system produced 32.2 MWh more per year than the fixed system. Global irradiation in the seasonal system is 26.4 kWh/m², and the specific yield is concluded to be more than 28 kWh / kWc / year.
对能量的需求日益增加。可再生能源已经在世界各地和土耳其的电力生产中占有重要地位,太阳能在可再生能源中的份额越来越高。太阳能非常容易使用,因为它是一种环保的清洁能源,所以更受欢迎。太阳能发电厂是未来的能源,因为太阳能发电厂的生产成本低于其他能源,并且克服了经济困难。为了获得最佳产量,太阳能发电厂必须最大限度地利用太阳。在设计的系统中,太阳能电池板具有固定和季节性变化。在夏季和冬季,第一次变化的太阳能电池板系统以恒定的25°角度放置,第二次变化的位置角度从10°移动到30°。本研究采用PVSYST分析程序对科尼亚州altinkin地区拟建并网的1148座kWp光伏电站的性能进行了评估。对两种不同系统的发电量、具体数据和性能值进行了计算。研究结果表明,季节性系统比固定系统每年多产生32.2兆瓦时。季节性系统的总辐照量为26.4 kWh/m²,比产率大于28 kWh/ kWc /年。
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引用次数: 2
An Ensemble Classifier for Finger Movement Recognition using EMG Signals 基于肌电信号的手指运动识别集成分类器
Pub Date : 2019-12-31 DOI: 10.18100/IJAMEC.659781
I. Ozkan
Electromyography (EMG) signals that obtained by electrodes connected to the forearm are the monitoring of the muscles by the electrical method. These signals are quite useful during the use of prosthesis as a source signal to the moving prosthesis. Therefore, it is essential that classifying the EMG signals with high accuracy by analyzing. This study aims that classifying the individual and combined finger movements using surface EMG signals taken from the surface of the human forearm. EMG signals that belong to 10 different finger movements obtained from eight subjects were used. Firstly, EMG signals have been split into segments by the windowing process, and temporal feature vectors are formed by applying various feature extraction methods to these segments.  Feature vectors have been classified with the ensemble bagged tree algorithm, which is a combination of classifiers, to obtain the correct classification decision. As a result of 10-fold cross-validation, with the proposed method, 96.6% overall classification accuracy was achieved. The results obtained show that the ensemble classifier can be used successfully in determining finger movements when compared with similar studies.
通过连接到前臂的电极获得的肌电图(EMG)信号是通过电方法监测肌肉。这些信号在假肢使用过程中作为运动假肢的源信号是非常有用的。因此,通过分析对肌电信号进行高精度分类是十分必要的。本研究旨在利用取自人类前臂表面的表面肌电信号对单个和组合的手指运动进行分类。使用了来自8名受试者的10种不同手指运动的肌电信号。首先,对肌电信号进行加窗处理,将肌电信号分割成多个片段,对这些片段应用各种特征提取方法形成时间特征向量;采用多分类器组合的集成袋树算法对特征向量进行分类,得到正确的分类决策。经过10倍交叉验证,该方法总体分类准确率达到96.6%。结果表明,与同类研究相比,集成分类器可以成功地用于识别手指运动。
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引用次数: 2
Vehicle Brand Detection Using Deep Learning Algorithms 基于深度学习算法的汽车品牌检测
Pub Date : 2019-09-30 DOI: 10.18100/IJAMEC.578497
Mehmet Furkan Kunduraci, Humar Kahramanlı Örnek
Today, information technologies are used in almost every stage of life. It seeks to find solutions too many issues and problems. Image processing applications have been widely used in many areas in recent years and are trying to solve problems. Many applications which perform tasks such as classification, counting, measurement, target tracking have been developed. The aim of this study is to provide a solution for different applications using an effective and cost-effective method to detect the brand and model of vehicles. A classification method is implemented using deep neural network in the determination of the vehicle brand. The proposed solution is tested on various images taken from different angles and obtained from different sources. Faster-RCNN method which is one of deep neural networks is used to brand detection of vehicles in this study. It is observed that Faster-RCNN method performs 67.66% classification accuracy.
今天,信息技术几乎应用于生活的每个阶段。它试图找到太多问题和问题的解决方案。近年来,图像处理在许多领域得到了广泛的应用,并正在努力解决问题。许多执行分类、计数、测量、目标跟踪等任务的应用程序已经开发出来。本研究的目的是为不同的应用提供一个解决方案,使用一种有效和经济的方法来检测车辆的品牌和型号。提出了一种基于深度神经网络的汽车品牌分类方法。在不同角度和不同来源的不同图像上对所提出的解决方案进行了测试。本文采用深度神经网络中的Faster-RCNN方法进行车辆品牌检测。观察到fast - rcnn方法的分类准确率为67.66%。
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引用次数: 2
Application Development wtih Service Oriented Architecture 应用程序开发与面向服务的体系结构
Pub Date : 2019-09-30 DOI: 10.18100/ijamec.588865
Ridvan Saraçoglu, Emine Doğaç
Today, it is one of the most invested areas of organizations to ensure the interoperability of existing corporate applications and newly developed or purchased applications. Developed systems are designed to be shaped according to the needs of the businesses that use it. Classical systems are automation systems that operate from point to point and from other platforms in the enterprise without interaction. Unlike these, the service-oriented architecture (SOA) contains a structure that is ready to interact. In this study, a system has been designed in order to reduce the integration costs between the applications in the long term by using SOA approach, to shorten the business processes in the institution and to reduce the economic costs. In the project, work pieces were published as a method of service over the service layer. Thus, the platform independent main application is accessible to each work piece. At the same time, these work pieces can come together and be reconfigured according to the request of the enterprise. Some of the advantages achieved by using SOA are: Providing improved work processes for services and actors, ensuring collaboration, utilizing from existing and reuse with savings, providing business flexibility by responding to changing business needs.
如今,确保现有公司应用程序与新开发或购买的应用程序的互操作性是组织投资最多的领域之一。已开发的系统是根据使用它的企业的需要来设计的。经典系统是在没有交互的情况下从点到点和从企业中的其他平台操作的自动化系统。与这些不同,面向服务的体系结构(SOA)包含一个随时可以交互的结构。在本研究中,设计了一个系统,目的是通过使用SOA方法来降低应用程序之间的长期集成成本,缩短机构中的业务流程并降低经济成本。在该项目中,工件作为服务层上的服务方法发布。这样,每个工件都可以访问独立于平台的主应用程序。同时,这些工件可以组合在一起,并根据企业的要求进行重新配置。通过使用SOA实现的一些优势包括:为服务和参与者提供改进的工作流程、确保协作、利用现有资源并节省重用、通过响应不断变化的业务需求来提供业务灵活性。
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引用次数: 0
期刊
International Journal of Applied Mathematics Electronics and Computers
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