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2016 International Conference on Medical Engineering, Health Informatics and Technology (MediTec)最新文献

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Bangladeshi Sign Language Recognition using fingertip position 使用指尖位置的孟加拉手语识别
Syed Tauhid Ahmed, M. Akhand
Sign language is the only means of communication for deaf and dump people which uses manual communication and body language to convey meaning. For any sign language, an interpreter is essential to communicate with deaf and dump people. To enhance interaction with community, Sign Language Recognition (SLR) is a growing field of research now a days. The task of SLR is language specific and a number of prominent works are available for few major languages. On the hand, the works are very few for Bangladeshi Sign Language (BSL) although Bangla is a major language and Bangladesh has a large community of deaf and dump people. In this study a BSL recognition scheme has been investigated based on fingertip position. The method considered relative tip positions of five fingers in two dimension space and position vectors are used to train artificial neural network (ANN) for recognition purpose. The method seems efficient with respect to ANN training with pixel values of image as of previous studies. The proposed method has been tested on a prepared data set of 518 images of 37 signs and achieved 99% recognition rate. The proposed method is found better than exiting BSL recognition methods.
手语是聋哑人的唯一交流手段,它是用肢体语言和肢体语言来表达意思的。对于任何一种手语,翻译都是与聋哑人和残疾人交流的必要工具。为了加强与社区的互动,手语识别(SLR)是当今一个新兴的研究领域。SLR的任务是特定于语言的,一些重要的作品适用于少数主要语言。另一方面,孟加拉手语(BSL)的作品很少,尽管孟加拉语是一种主要语言,而且孟加拉国有大量聋哑人和残疾人。本文研究了一种基于指尖位置的车贴语识别方法。该方法考虑了五指在二维空间中的相对位置,并利用位置向量训练人工神经网络(ANN)进行识别。从以往的研究来看,该方法对于图像像素值的人工神经网络训练是有效的。该方法在518张37种标志图像的数据集上进行了测试,识别率达到99%。结果表明,该方法优于现有的车贴语识别方法。
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引用次数: 15
Persuasive health and wellbeing application: A theory-driven design in promoting physical activity 有说服力的健康和福利应用:促进身体活动的理论驱动设计
Md Sanaul Haque, Wali Mohammad Abdullah, S. Rahaman, M. Kangas, T. Jämsä
People spend a lot of time at their workplace, for example in office environment. After consuming breakfast or lunch during the recess periods, one may feel lazy both physically and mentally. Thus, gaining extra calories may lower the working progress. To motivate individuals for healthier behavior, we designed, executed and tested an application for improving physical activity behavior at workplace. Our health and wellbeing application delivers a physical activity promotion intervention that motivates user performing activities, for example by walking after breakfast or lunch. Our physical activity promotion is based on recent research showing that one can be motivated extrinsically through satisfaction of three basic psychological needs (autonomy, competence and relatedness) that are influenced by autonomy support. We conducted a one week long usability evaluation on users for the health and wellbeing application. We found that the application works well for physical activity promotion.
人们花很多时间在工作场所,例如在办公室环境中。在休息时间吃完早餐或午餐后,一个人可能会感到身心懒惰。因此,获得额外的卡路里可能会降低工作进度。为了激励个人采取更健康的行为,我们设计、执行并测试了一款改善工作场所体育活动行为的应用程序。我们的健康和福利应用程序提供了一种体育活动促进干预,激励用户进行活动,例如在早餐或午餐后散步。我们的体育活动推广是基于最近的研究表明,一个人可以通过满足受自主支持影响的三种基本心理需求(自主性、能力和相关性)来获得外在动机。我们对健康和福利应用程序的用户进行了为期一周的可用性评估。我们发现该应用程序在促进体育活动方面效果很好。
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引用次数: 11
Range adaptation of Wireless Power Transfer systems for biomedical applications 生物医学应用无线电力传输系统的范围适应
S. Kabir, K. Wahid, M. Hasan
The circuit components of a Wireless Power Transfer (WPT) system are designed considering a fixed separation distance and fixed alignment between the transmitting and receiving sides of the WPT system. But, in practice, the separation distance and the alignment do not remain constant. This is especially true for a biomedical application where a moving instrumental part requires electric power. This change causes a variation in mutual coupling and consequently in the efficiency of the system. This paper describes how to maintain the efficiency more or less constant even if the separation distance and the alignment vary. First of all, the circuit elements for maximum efficiency are worked out, then simulation for various separation distances and misalignment are calculated. A means of controlling a particular parameter is worked out in order to maintain efficiency of the system more or less constant.
无线电力传输(WPT)系统的电路元件设计考虑了WPT系统发射端和接收端之间的固定分离距离和固定对准。但是,在实际操作中,分离距离和对齐并不保持不变。这对于生物医学应用来说尤其如此,因为移动的仪器部件需要电力。这种变化导致了相互耦合的变化,从而导致了系统效率的变化。本文介绍了在分离距离和线向变化的情况下,如何保持效率基本不变。首先,设计出效率最高的电路元件,然后对不同的分离距离和不对准进行了仿真计算。为了保持系统的效率或多或少不变,研究出了一种控制特定参数的方法。
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引用次数: 0
Lie detection from fNIR signal and NeuroImage 基于近红外信号和神经图像的测谎
Md. Asadur Rahman, Mohiudding Ahmad
In this paper, we investigated the hemodynamic response of human brain activity during answering lie with respect to true. For laboratory investigation, several mock lying protocols are used those are verbal lying test and that's so why time consuming. In this research, a new method of mock lying protocol is proposed. With the help of this protocol, some subjects performed mock lying protocol (A written lying protocol) and during that time their hemodynamic responses are collected from prefrontal cortex by fNIR device. It is noteworthy that lying by written is more deceivable than verbal test. Therefore, the main challenge is to discriminate the very little change of hemodynamic response with respect to true answering condition. By this method, we have focused some such characteristics of brain function during lying make the proposed method convenient to detect lie. Furthermore, channel wise significant features are presented to differentiate the brain activities between answering lie and truth. In addition, the specific positions of prefrontal cortex with activation intensity (activation range) are identified while participants lie. This method can be applied for lie detection by observing some more studies.
在本文中,我们研究了人脑在回答谎言时相对于真实的血流动力学反应。在实验室调查中,使用了几种模拟撒谎协议,这些是口头撒谎测试,这就是为什么耗时。在本研究中,提出了一种新的模拟说谎协议方法。在此方案的帮助下,部分受试者执行模拟撒谎方案(书面撒谎方案),并在此期间通过近红外装置收集其前额叶皮层的血流动力学反应。值得注意的是,书面撒谎比口头撒谎更容易受骗。因此,主要的挑战是区分相对于真实应答条件的血流动力学反应的微小变化。通过该方法,我们关注了说谎时大脑功能的一些特征,使所提出的方法便于谎言检测。此外,提出了通道明智的显著特征来区分回答谎言和真相之间的大脑活动。此外,在受试者撒谎时,识别出具有激活强度(激活范围)的前额叶皮层的特定位置。通过观察更多的研究,这种方法可以应用于测谎。
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引用次数: 9
Moving averaging method of RSSI based distance estimation for wireless capsule localization 基于RSSI的移动平均无线胶囊定位距离估计方法
Umma Hany, L. Akter, Md. Farhad Hossain
In this paper, we propose an efficient method of distance estimation for the localization of wireless capsule endoscope (WCE) using received signal strength indicator (RSSI). As RSSI is attenuated with change of distance, we can use RSSI measurements to estimate the distance. The main challenge in wireless capsule localization in the gastrointestinal (GI) tract is the random deviation in RSSI measurements due to the shadowing and multi-path propagation effects of non-homogeneous medium. In this paper, we propose a method of distance estimation which can improve the accuracy of wireless capsule localization. To address the randomness issue of RSSI measurements, we propose moving averaging method of path loss to estimate the distance of the swallowed capsule. We simulate our proposed method using MATLAB and observe significant improvement in distance estimation of the capsule considering non-homogeneous environment of human body.
本文提出了一种基于接收信号强度指示器(RSSI)的无线胶囊内窥镜(WCE)定位距离估计方法。由于RSSI随距离的变化而衰减,我们可以使用RSSI测量值来估计距离。无线胶囊定位在胃肠道中的主要挑战是由于非均匀介质的阴影和多路径传播效应导致RSSI测量的随机偏差。本文提出了一种距离估计方法,提高了无线胶囊定位的精度。为了解决RSSI测量的随机性问题,我们提出了路径损失的移动平均方法来估计被吞胶囊的距离。我们用MATLAB对所提出的方法进行了仿真,观察到考虑到人体非均匀环境,胶囊的距离估计有明显改善。
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引用次数: 2
Evolutionary analysis and prediction of peptide vaccine candidates for Nipah virus fusion protein 尼帕病毒融合蛋白候选肽疫苗的进化分析与预测
Farzana Hossain, A. Rubayet-Ul-Alam
Nipah virus (NiV) is classified as a biosafety level 4(BSL-4) agent for being a deadly pathogen, having a broad host range including human and showing the high mortality rate associated with severe encephalitis along with other clinical manifestations. Recently, it was reported that monocytes, natural killer cells and CD4+/CD8+ T cells support Nipah virus replication, which may facilitate dissemination of the virus during pathogenesis. Both B and T cell epitopes were designed against and mapped on the three-dimensional structure of the fusion(F) glycoproteins of Nipah virus that were circulating in South and Southeast Asia since 1999. To support the potentiality of the epitopes chosen for peptide vaccine, other chemical attributes were checked for finding the suitability of epitopes. Phylogenetic relationship and selection pressure were also analyzed to find out the diversity and evolutionary effects on amino acid level. After sifting through various methods, the epitopes with the highest probability were chosen for the putative peptide vaccine against Nipah virus.
尼帕病毒(NiV)被列为生物安全4级(BSL-4)病原体,因为它是一种致命病原体,具有包括人类在内的广泛宿主范围,并且与严重脑炎以及其他临床表现相关的高死亡率。最近,有报道称单核细胞、自然杀伤细胞和CD4+/CD8+ T细胞支持尼帕病毒的复制,这可能有助于病毒在发病过程中的传播。针对1999年以来在南亚和东南亚流行的尼帕病毒融合(F)糖蛋白的三维结构设计了B细胞和T细胞表位,并绘制了它们的表位。为了支持选择的肽疫苗表位的潜力,检查了其他化学属性以发现表位的适用性。分析了系统发育关系和选择压力,揭示了其多样性及其在氨基酸水平上的进化效应。通过多种方法筛选后,选择概率最高的表位用于推测的尼帕病毒肽疫苗。
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引用次数: 2
PurpleAid: An mHealth platform to combat health hazards of women PurpleAid:一个对抗女性健康危害的移动健康平台
F. Khan, Maitraye Das, Ahiya Ahammed
Present world is witnessing unprecedented use of mobile technologies in all sectors of everyday life including healthcare and clinical therapies. However, the healthcare of women still lacks sufficient attention from mobile health perspective. Although a number of smartphone applications are available for healthcare of women, all of them focus mainly towards reproductive health like pregnancy and menstruation. In this paper, we present PurpleAid, a complete health support system for women which takes into account possible reproductive and non-reproductive health conditions i.e., conditions unique for women only (e.g., uterine fibroid etc.), affecting men and women differently (e.g., urinary tract infection etc.) and common in both men and women (e.g., heart disease etc.). Our proposed system diagnoses diseases depending on input symptoms given by the users with accurate severity level, provides suggestions for treatment and prevention of the diseases as well as for regular maintenance of fitness. Performance evaluation and usability test results of a prototype implementation show that PurpleAid has emerging potential as a compact user-friendly health support system for women.
当今世界正在见证移动技术在包括医疗保健和临床治疗在内的日常生活各个领域的前所未有的使用。然而,从流动医疗的角度来看,妇女保健仍然缺乏足够的重视。虽然有许多智能手机应用程序可用于妇女保健,但它们都主要侧重于怀孕和月经等生殖健康。在本文中,我们介绍了PurpleAid,一个完整的女性健康支持系统,它考虑了可能的生殖和非生殖健康状况,即仅对女性独特的状况(如子宫肌瘤等),对男性和女性的影响不同(如尿路感染等),对男性和女性都常见(如心脏病等)。我们提出的系统根据用户输入的症状诊断疾病,并给出准确的严重程度,为疾病的治疗和预防提供建议,并定期保持健康。原型实施的性能评估和可用性测试结果表明,PurpleAid作为一个紧凑的用户友好的妇女健康支持系统具有新兴的潜力。
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引用次数: 1
A direction-sensitive fall detection system using single 3D accelerometer and learning classifier 采用单三维加速度计和学习分类器的方向敏感跌倒检测系统
Farhad Hossain, Md Liakot Ali, Md. Zahurul Islam, H. Mustafa
The rate of fall incidence among the elderly people is ever increasing. It is at the sixth position in the list of causes of death for the people aged between 60 and 65; the second between 65 and 75; the first over 75. Treatment of a patient, experiencing complications due to a fall, within the first 12 minutes after a fall brings a survival rate of 48% –75%. So, fast and accurate detection of fall events is emerging as a big necessity for many countries, especially for the advanced world where the society adopts the culture of independent living for elderly people. It is also important to determine the direction of a fall as it can help determine the locations of joint weakness and fracture quickly. Researchers' claims of fall detection accuracy of over 90% are based on accelerometers and embedded extra sensors like gyroscopes, cardio tachometer, magnetometer, and barometric pressure sensors. However, most such fall detection algorithms have been developed based on observational analysis of the data gathered, leading to thresholds settings for fall/non-fall situations. To detect the direction of fall, some researchers uses gyroscope or more accelerometers. The proposed method, using single 3D accelerometer and machine learning algorithm particularly SVM (Support vector machine) is to detect 4 types of falls (forward, backward, right and left). When applied to experimental data from 13 male subjects, the proposed system discriminates between falls and activities of daily living (ADL) with better than previously reported accuracy level. The system is reliable, user friendly and cost effective.
老年人跌倒的发病率不断上升。在60至65岁人群的死亡原因清单中,它排在第六位;第二个年龄在65岁到75岁之间;第一个除以75。在跌倒后的最初12分钟内对因跌倒而出现并发症的患者进行治疗,生存率为48% -75%。因此,对于许多国家来说,快速准确地检测跌倒事件是一种很大的必要性,特别是对于社会采用老年人独立生活文化的发达国家。确定跌倒的方向也很重要,因为它可以帮助快速确定关节软弱和骨折的位置。研究人员声称,超过90%的跌倒检测精度是基于加速度计和嵌入的额外传感器,如陀螺仪、心率计、磁力计和气压传感器。然而,大多数此类跌倒检测算法都是基于对所收集数据的观察分析而开发的,这导致了跌倒/非跌倒情况的阈值设置。为了检测下落的方向,一些研究人员使用陀螺仪或更多的加速度计。本文提出的方法是利用单个三维加速度计和机器学习算法,特别是SVM(支持向量机)来检测4种类型的跌倒(向前、向后、右、左)。当应用于13名男性受试者的实验数据时,所提出的系统区分跌倒和日常生活活动(ADL)的准确率高于先前报道的准确性水平。该系统可靠、用户友好、性价比高。
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引用次数: 24
Restriction site placement in virus genomes using Particle Swarm Optimization 基于粒子群优化的病毒基因组限制性位点定位
M. Akhand, Sk. Imran Hossain, Md. Fosil Habib, K. Murase
The Presence of unique restriction sites (URSs) within a sequence is very important so that the sequence may be cut unambiguously in exactly one place with a restriction enzyme. Restriction site manipulation in virus genome may produce virus variants to serve as potential vaccines. Therefore, a number of applications are invented for the manipulation of viral genomes to produce attenuated viruses. Recently, automatic generation of URSs in the sequence has been investigated through different approaches (e.g., Greedy, Weighted Bipartite and Max-Min Gap) and found effective. The aim of this study is to investigate URS enhancement in a given virus genome considering it as an optimization task. URS placement (URSP) is a kind of pattern matching problem; therefore, formulation of existing optimization approach(s) to solve it efficiently is very important timely research so that working with large sized genomes becomes easy. In this study, Particle Swarm Optimization (PSO), the popular method of optimization, has been modified and formulated to solve URSP problem. The proposed URSP-PSO method has been tested on a set of benchmark virus genome sequences and found to increase URSs in a large number. The method is also found better than existing methods for large sized genome sequences.
在一个序列中是否存在唯一的限制性内切位点(URSs)是非常重要的,这样就可以用限制性内切酶精确地在一个地方切割该序列。操纵病毒基因组中的限制性内切位点可以产生病毒变体,作为潜在的疫苗。因此,发明了许多用于操纵病毒基因组以产生减毒病毒的应用。近年来,人们通过不同的方法(如贪心、加权二部和最大最小间隙)研究了序列中URSs的自动生成,并发现了有效的方法。本研究的目的是研究URS在给定病毒基因组中的增强,并将其视为一项优化任务。URSP是一种模式匹配问题;因此,制定现有的优化方法来有效地解决这一问题是非常重要的,及时的研究,使处理大型基因组变得容易。本文对目前流行的优化方法粒子群优化(PSO)进行了改进和构建,以解决URSP问题。所提出的URSP-PSO方法已在一组基准病毒基因组序列上进行了测试,发现该方法可以大量增加URSs。该方法也被发现比现有的大尺寸基因组序列方法更好。
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引用次数: 0
Clincal engineering and healthcare delivery performance mesurement: A basic model of clinical engineering department for 250 bed hospital in Bangladesh 临床工程与医疗服务绩效评估:孟加拉国250张床位医院临床工程部门基本模式
M. A. Hossain, Mohiudding Ahmad, M. R. Islam, M. Hossain, A. Rahman, S. Islam, M. A. Rashid
In the past few decades, the healthcare technology management performance comes under the clinical engineering for enhancing the healthcare delivery performance of hospital. For this reasons, most of the countries established clinical engineering department in their healthcare delivery organizations such hospitals and clinics. This study explores clinical engineering intermediation to measure the performance of present healthcare delivery and advises to introduce the CED in the healthcare delivery organization. In this paper, we propose a model of CED for 250 bedded hospital in Bangladesh. The study describes the necessity of CE to enhance the present unpleasant healthcare delivery performance in Bangladesh as well as describes the result to introduce CED model in the healthcare delivery organization in Bangladesh. Moreover, the benefit of introduced CE and CED in healthcare delivery organizations in Bangladesh is described. Expected results of this study will enrich the conceptions of the present health care management team on CE and CED for the healthcare delivery performance. We firmly believe that our study will enhance the present unfamiliarity conception of healthcare management team.
在过去的几十年里,医疗技术管理绩效一直处于提高医院医疗服务绩效的临床工程范畴。因此,大多数国家在其医院和诊所等医疗保健服务机构中建立了临床工程部门。本研究探讨了临床工程中介来衡量当前医疗服务的绩效,并建议在医疗服务组织中引入临床工程中介。本文以孟加拉国250个床位的医院为例,提出了一种CED模型。该研究描述了CE的必要性,以提高孟加拉国目前不愉快的医疗服务绩效,并描述了在孟加拉国医疗服务组织中引入CED模型的结果。此外,介绍了在孟加拉国医疗保健服务组织中引入CE和CED的好处。本研究的预期结果将丰富当前医疗管理团队对医疗服务绩效的认知。我们坚信,我们的研究将加强目前对医疗管理团队的陌生概念。
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引用次数: 1
期刊
2016 International Conference on Medical Engineering, Health Informatics and Technology (MediTec)
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