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Advancement in OCT and image-processing techniques for automated ophthalmic diagnosis 用于眼科自动诊断的OCT和图像处理技术的进展
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469183
R. Datta, S. Aditya, D. N. Tibrewala
{"title":"Advancement in OCT and image-processing techniques for automated ophthalmic diagnosis","authors":"R. Datta, S. Aditya, D. N. Tibrewala","doi":"10.1109/TECHSYM.2010.5469183","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469183","url":null,"abstract":"Optical Coherence Tomography (OCT) is a recently developed, non-invasive, biomedical imaging modality. It is progressively gaining popularity in ophthalmologic diagnostics. Compared to any other imaging modality, OCT enables clinicians to obtain retinal images with much higher resolution. This paper discusses the basic functioning principle of OCT and various advancements that it has gone through starting from its invention by Huang et al. in 1991. Following a review regarding some developed image processing methods, the paper concludes by discussing the limitations and future scopes in OCT image analysis and its application in automated diagnosis. In an attempt to overcome the shortcomings and explore areas that require further development, we are working on devising newer image analysis algorithms at Jadavpur University, India.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"15 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131574840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Discourse marker generation and syntactic aggregation in Bengali text generation 孟加拉语语篇生成中的话语标记生成与句法聚合
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469163
Sumit Das, A. Basu, S. Sarkar
{"title":"Discourse marker generation and syntactic aggregation in Bengali text generation","authors":"Sumit Das, A. Basu, S. Sarkar","doi":"10.1109/TECHSYM.2010.5469163","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469163","url":null,"abstract":"In discourse, the elementary text spans are semantically connected by coherence relations. Discourse markers linguistically realize the coherence relations in the surface form. On the other hand, by text aggregation, redundant entities are eliminated, resulting in more fluent, coherent, and concise text. For any but the most application of text generation, appropriate discourse marker selection and text aggregation are two important aspects for coherent text generation. In this paper, we explore the prevalent syntactic aggregation constructs in Bengali and present a rule based approach towards generating Bengali compound sentences using the identified constructs. We present a user based evaluation to validate our approach. At the end, we have also given an outline of a corpus based approach for generating suitable discourse marker in Bengali.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116454060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Classification of EEG signals for epileptic seizure evaluation 脑电信号分类用于癫痫发作评估
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469195
Pritish Ranjan Pal, R. Panda
{"title":"Classification of EEG signals for epileptic seizure evaluation","authors":"Pritish Ranjan Pal, R. Panda","doi":"10.1109/TECHSYM.2010.5469195","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469195","url":null,"abstract":"Feature extraction and classification of biosignals is an important issue in development of disease diagnostic expert system (DDES). In this paper we propose a simple method for EEG classification based on Fourier features. Parameters like energy, entropy, power, and kurtosis were considered for discrimination of various categories of EEG signals. After calculating the above mentioned parameters of the discussed signals, we found that without going for rigorous time-frequency domain analysis, only frequency based analysis is well suitable to classify various EEG signals.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129559291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Design and evaluation of Bangla keyboard layouts 孟加拉语键盘布局的设计与评估
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469161
T. Dasgupta, A. Basu, A. Das, P. Mandal
{"title":"Design and evaluation of Bangla keyboard layouts","authors":"T. Dasgupta, A. Basu, A. Das, P. Mandal","doi":"10.1109/TECHSYM.2010.5469161","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469161","url":null,"abstract":"Bangla is considered as the fifth most frequent spoken language in the world. However, standard input methods for typing Bangla are not very widespread among Bengali users. In this paper we present the design and development of a novel Bangla phonetic keyboard layout that can be used to type Unicode enabled Bangla texts in a standard text editor using any QWERTY keyboard. The keyboard layout is based on Unicode 5.0 standard. We have evaluated the performance of our proposed layout with the existing Bangla keyboard layouts. Our primary evaluation shows a significant improvement in typing speed, and ease of learning and reduction in error rates.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133344419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Location estimation of sensor nodes using learning movement patterns 使用学习运动模式的传感器节点位置估计
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469217
R. Arthi, K. Murugan
{"title":"Location estimation of sensor nodes using learning movement patterns","authors":"R. Arthi, K. Murugan","doi":"10.1109/TECHSYM.2010.5469217","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469217","url":null,"abstract":"The definition of a localization system among sensor nodes is a fundamental issue for many applications of wireless sensor networks (WSNs). Because sensor networks may be deployed in inaccessible area the position of sensor nodes may not be predetermined. Thus, a localization system is required in order to provide position information to the nodes. The cost and limited energy resource associated with common, mobile nodes prohibits them from carrying relatively expensive devices such as Global Positioning System (GPS). This paper proposes a mechanism that allows non-GPS-equipped nodes in the network to derive their approximated locations from a limited number of GPS-equipped nodes. Non-GPS nodes estimate the distance by measuring the Received Signal Strength Indicator (RSSI).In our method, Hidden Markov Model (HMM) is used to estimate the approximated location of distance estimates with the help of mobility models. Simulation studies show that our solution is capable of producing good estimates-equal or better.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133306011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Parameters effecting the predictive virtual keyboard 影响预测虚拟键盘的参数
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469160
Manoj Kumar Sharma, S. Dey, Pradipta Kumar Saha, D. Samanta
{"title":"Parameters effecting the predictive virtual keyboard","authors":"Manoj Kumar Sharma, S. Dey, Pradipta Kumar Saha, D. Samanta","doi":"10.1109/TECHSYM.2010.5469160","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469160","url":null,"abstract":"Text prediction is one of the most widely used technique to enhance the text entry rate in message composition system with virtual keyboard. Several text prediction techniques have been reported in recent literature. Most of them concentrate on prediction method and keystroke savings. It is observed that other than these issues, many factors influence the performance of text prediction. This paper discusses these different parameters. In addition to prediction method, we also examine organizational structure and fast retrieval of suggestion, factor such as User Interface and Human factors, such as orientation of prediction list, number of suggestions to be displayed, proper placing of prediction window, training and testing etc. Issues such as keyboard-adjacency and motor-coordination slip are also illustrated. In this paper we elaborate the proper placing of displaying prediction list for maximum benefit and its effect on searching the word in the predictive text entry system.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116120901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Statistical pattern analysis of white blood cell nuclei morphometry 白细胞细胞核形态计量学的统计模式分析
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469197
M. Ghosh, D. Das, S. Mandal, C. Chakraborty, M. Pala, A. Maity, Surjya K. Pal, A. Ray
{"title":"Statistical pattern analysis of white blood cell nuclei morphometry","authors":"M. Ghosh, D. Das, S. Mandal, C. Chakraborty, M. Pala, A. Maity, Surjya K. Pal, A. Ray","doi":"10.1109/TECHSYM.2010.5469197","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469197","url":null,"abstract":"Quantitative microscopy has strengthened conventional diagnostic scheme through better understanding of microscopic features from clinical perspective. Towards this, pathological image analysis has gained immense significance among medical fraternity through visualization and quantitative evaluation of clinical features. Till today pathological inspection of human blood is solely dependent on subjective assessment which usually leads to significant inter-observer variation in grading and subsequently resulting in late diagnosis of certain disease. This paper introduced a systematic approach to morphologically characterize five types of white blood cells (WBC) through statistical pattern analytics. Marker controlled watershed segmentation embedded with morphological operator is employed to segment WBC and its nuclei from light microscopic image of blood samples. Henceforth, one cellular and eight nuclei-based geometric features are computed mathematically and analyzed statistically with t-test and kernel density functions to show their discriminating potentiality among the groups. Amongst all these features, only four statistical significant features are fed to Naïve Bayes classifier for pattern identification with 83.2% overall accuracy. Detailed results are also given here.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126273842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Fixed and sinusoidal-band hysteresis current controller for PWM voltage source inverter with LC filter 带LC滤波器的PWM电压源逆变器的固定和正弦带滞后电流控制器
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469205
M. Mohapatra, B. Chitti Babu
{"title":"Fixed and sinusoidal-band hysteresis current controller for PWM voltage source inverter with LC filter","authors":"M. Mohapatra, B. Chitti Babu","doi":"10.1109/TECHSYM.2010.5469205","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469205","url":null,"abstract":"For improving the dynamic response of the system, most of the pwm voltage source inverters are operating with inner current control loop. The application includes high performance ac drives, active filters and power supplies etc. Recently pwm voltage source inverters are employed in grid connected distributed power generating systems in order to provide secure and reliable power to the utility grid. This paper presents the comparative study between fixed and sinusoidal hysteresis current controller for pwm voltage source inverter. A comparison has been made in terms of THD level at the three-phase load current, current error minimization, average and maximum switching frequency of the converter switches in VSI. The simulation study has been carried out with the help of MATLAB simulink environment and the performance of such controllers has been observed during load variations.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"377 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122984668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 31
Latency aware real time cryptographic communication model for MANET 基于时延感知的MANET实时加密通信模型
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469173
Anoop Kumar Pandey, K. Ranjan, A. Agarwal, N. Kumar
{"title":"Latency aware real time cryptographic communication model for MANET","authors":"Anoop Kumar Pandey, K. Ranjan, A. Agarwal, N. Kumar","doi":"10.1109/TECHSYM.2010.5469173","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469173","url":null,"abstract":"With the advancement in radio technologies like Bluetooth, IEEE 802.11 or Hiperlan, a new concept of networking has emerged. This is known as Mobile ad hoc networking (MANET) in which potential mobile users/clients arrive within the common perimeter of radio link and participate in setting up the network topology for communication. Nodes within MANET are mobile and they communicate with each other within radio range through direct wireless links or multi-hop routing. With the advent of such technologies, some vulnerabilities have also emerged which provides an opportunity for an adversary to invade such network and share/steal/deform information. The adversary may be internal as well as external i.e. node either participating in MANET or not. In this paper, we propose a latency aware cryptographic real-time communication model for MANET which not only mitigates many known external attacks claimed/detected so far but also it is suitable for real-time applications where latency is a critical issue.","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123370317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low voltage low power pipelined ADC for video applications 用于视频应用的低电压低功耗流水线 ADC
2010 IEEE Students Technology Symposium (TechSym) Pub Date : 2010-04-03 DOI: 10.1109/TECHSYM.2010.5469177
Hameed Zohaib Samad, P. SrihariRao, K. Sarangam
{"title":"Low voltage low power pipelined ADC for video applications","authors":"Hameed Zohaib Samad, P. SrihariRao, K. Sarangam","doi":"10.1109/TECHSYM.2010.5469177","DOIUrl":"https://doi.org/10.1109/TECHSYM.2010.5469177","url":null,"abstract":"In today's world application of battery powered analog and mixed mode electronic device requires designing analog circuit to operate at low voltage levels. There are many issues which are involved in implementing low voltage circuits such as reduced noise immunity, greater delay and poor linearity. There is a need to use certain MOSFET techniques so that the MOSFET can be used even in sub-threshold region without any significant change in its performance. Certain techniques have been put forward corresponding to low voltage analog circuits using CMOS Technology to be used in variety of applications. Accordingly we propose to design a 10 bits 30Msample/s CMOS Analog to Digital Converter (ADC) using a 1.5-bits/stage pipeline architecture for high speed signal processing to be used in video related applications","PeriodicalId":262830,"journal":{"name":"2010 IEEE Students Technology Symposium (TechSym)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126926677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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