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2007 5th Student Conference on Research and Development最新文献

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Improving Invisibility of Blind Video Watermarking Scheme 改进视频盲水印方案的不可见性
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451358
A.A.B. Al-Deen, A. Ramli, M. Marhaban, S. Mashohor
{"title":"Improving Invisibility of Blind Video Watermarking Scheme","authors":"A.A.B. Al-Deen, A. Ramli, M. Marhaban, S. Mashohor","doi":"10.1109/SCORED.2007.4451358","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451358","url":null,"abstract":"A video watermarking algorithm is developed here to embed a binary image inside the uncoded video stream acting as a logo. A mid-band discrete wavelet transform coefficients of the selected frames are chosen to be the hosted region in the frequency domain. An inverse transformation should be taken in order to get the desired watermarked video shot. In extraction process the watermark is extracted from the marked video directly without access to the original video. The experiment results showed that the proposed scheme provides better quality watermarked videos in term of watermark invisibility to human eyes. In conclusion, modifying the wavelet coefficients depending only on the logo object's pixels will highly improve the invisibility and at the same time providing a good robustness level.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121519295","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
Slurry Usage Reduction for Failure Analysis Sample Preparation 减少失效分析样品制备的浆料用量
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451387
S. Bin Saee, N. H. Seng, Tan Hong Mui
{"title":"Slurry Usage Reduction for Failure Analysis Sample Preparation","authors":"S. Bin Saee, N. H. Seng, Tan Hong Mui","doi":"10.1109/SCORED.2007.4451387","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451387","url":null,"abstract":"This paper describes slurry usage reduction for failure analysis (FA). The slurry is applied during final fine polishing for scanning electron microscopy (SEM) sample preparation in failure analysis. The three main factors, slurry concentration, polishing time and down pressure have been evaluated to maintain or improve the SEM images quality while reducing slurry consumables cost. The 0.05 mum blue colloidal silica diluted with de-ionized (DI) water with the ratio of 1:1 has been proven as optimized solution to save up to 46% of total slurry cost annually.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126265191","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
EEG Classification using Radial Basis PSO Neural Network for Brain Machine Interfaces 基于径向基粒子群神经网络的脑机接口脑电信号分类
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451377
M. Paulraj, C. Hema, R. Nagarajan, S. Yaacob, A. H. Adorn
{"title":"EEG Classification using Radial Basis PSO Neural Network for Brain Machine Interfaces","authors":"M. Paulraj, C. Hema, R. Nagarajan, S. Yaacob, A. H. Adorn","doi":"10.1109/SCORED.2007.4451377","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451377","url":null,"abstract":"Brain machine interfaces use the cognitive abilities of patients with neuromuscular disorders to restore communication and motor functions. At present, only EEG and related methods, which have relatively short time constants, can function in most environments, they also require relatively simple and inexpensive equipment. In this paper we propose a mental task classification algorithm using a particle swarm optimization (PSO) for a radial basis neural network. Features are extracted from EEG signals that are recorded during five mental tasks, namely baseline-resting, mathematical multiplication, geometric figure rotation, letter composing and visual counting. PCA features extracted from the task signals are used the neural net to classify different combinations of two mental tasks. Results obtained show average classification rates ranging from % to %.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125946430","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: 14
Active Shape Modeling of Medical Images for Vertebral Fracture Computer Assisted Assessment System 椎体骨折计算机辅助评估系统医学图像的主动形状建模
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451397
M. Aouache, A. Hussain, S. Samad, A. H. Hamzaini, A. Ariffin
{"title":"Active Shape Modeling of Medical Images for Vertebral Fracture Computer Assisted Assessment System","authors":"M. Aouache, A. Hussain, S. Samad, A. H. Hamzaini, A. Ariffin","doi":"10.1109/SCORED.2007.4451397","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451397","url":null,"abstract":"This paper describes the development of a computerized method for detection of vertebral fractures by measuring the shape and appearance of vertebrae on cervical x- ray radiographs. The goal of our work is to assist radiologists' image interpretation and thus allow the early diagnosis of osteoporosis. To achieve this goal, we propose a software system known as AVFAS, short for Automatic Vertebral Fracture Assessment System. Our proposed system consists of three modules which we named as the medical image training & verification system (MITVS), medical image measurement & decision system (MIMDS) and medical image registration system (MIRS). The MITVS deals with the extraction of feature vectors from example images, training the extracted feature vectors and verifying the similarity between the extracted feature vectors based on the active shape model (ASM) and stores the result as text file. The MIMDS module provides the interface for image pre-processing procedures which includes region of interest (ROI) selection, image enhancement, similarity matching between features extracted from the query visual and those stored in the database. Finally, the MIRS module provides method to combine patient data via text file and image queries. The generated text data will include the patient data acquired from the second national health and nutrition examinations survey (NHANES II) as well as the result of the vertebra image analysis and recognition process.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127510837","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: 12
Collision Free Hash Function Based on Miyaguchi-Preneel and Enhanced Merkie-Damgard Scheme 基于Miyaguchi-Preneel和增强Merkie-Damgard方案的无碰撞哈希函数
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451411
H. Mirvaziri, K. Jumari, M. Ismail, Z. Hanapi
{"title":"Collision Free Hash Function Based on Miyaguchi-Preneel and Enhanced Merkie-Damgard Scheme","authors":"H. Mirvaziri, K. Jumari, M. Ismail, Z. Hanapi","doi":"10.1109/SCORED.2007.4451411","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451411","url":null,"abstract":"This paper proposed a new hash function with enhanced Merkle-Damgard and single length compression function that is implemented on Miyaguchi-Preneel block cipher and intelligent repetition optimize hash process to avoid well- known weaknesses so it is secure in the sense of indifferentiability and collision resistance.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116535720","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
Modeling Context and Exchange Format for Context-Aware Computing 上下文感知计算的上下文建模和交换格式
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451440
B. Erfianto, A. Mahmood, A. Rahman
{"title":"Modeling Context and Exchange Format for Context-Aware Computing","authors":"B. Erfianto, A. Mahmood, A. Rahman","doi":"10.1109/SCORED.2007.4451440","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451440","url":null,"abstract":"This paper presents modeling concern to construct context data format that is applicable for context-aware computing. The first concern deals with developing abstract model at application entity which is defined independently from presentation entity. Regarding to this matter, the context data format have been constructed as higher and lower abstraction model presented in OWL and XML instance. The second concern deals with mapping lower abstraction model to exchange format. JSON exchange format is proposed in this paper as the alternative to the incumbent XML. The context data format, which is constructed at lower abstraction model, has been transformed to JSON by applying XSLT rule. As a result, JSON exchange format is obviously smaller than XML in term of exchange format size.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132475816","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: 12
Speaker Verification using Vector Quantization and Hidden Markov Model 基于矢量量化和隐马尔可夫模型的说话人验证
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451419
M. Z. Ilyas, S. Samad, A. Hussain, K. A. Ishak
{"title":"Speaker Verification using Vector Quantization and Hidden Markov Model","authors":"M. Z. Ilyas, S. Samad, A. Hussain, K. A. Ishak","doi":"10.1109/SCORED.2007.4451419","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451419","url":null,"abstract":"This paper presents a speaker verification system using a combination of vector quantization (VQ) and hidden Markov model (HMM) to improve the HMM performance. A Malay spoken digit database which contains 100 speakers is used for the testing and validation modules. It is shown that, by using the proposed combination technique, a total success rate (TSR) of 99.97% is achieved and it is an improvement of 11.24% in performance compared to HMM. For speaker verification, true speaker rejection rate, impostor acceptance rate and equal error rate (EER) are also improved significantly compared to HMM.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133290886","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: 23
Application Of Artificial Immune System To Design Power Systems Stabilizer 人工免疫系统在电力系统稳定器设计中的应用
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451442
Freddy Prasetia Ridhuan, M. Othman
{"title":"Application Of Artificial Immune System To Design Power Systems Stabilizer","authors":"Freddy Prasetia Ridhuan, M. Othman","doi":"10.1109/SCORED.2007.4451442","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451442","url":null,"abstract":"Conventional power system stabilizers contain a phase lag/lead network for phase compensation and have played a very significant role to enhance the stability of power systems. Various new approaches have been proposed in the past 30 years to improve the performance of power system stabilizers such as modern control and artificial intelligence techniques. In this paper a new method of control will be implemented to a power systems stabilizer. This approach uses the artificial immune controller called the improved varela immune network controller or IVINC. The purposes of IVINC controller are to enhance the stability of power systems and to damp low frequency oscillations.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127761329","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: 11
Study on Stability and Performances of DTC Due to Stator Resistance Variation 定子电阻变化对直接转矩控制稳定性及性能的影响
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451427
A. Jidin, N. Idris, A. Yatim
{"title":"Study on Stability and Performances of DTC Due to Stator Resistance Variation","authors":"A. Jidin, N. Idris, A. Yatim","doi":"10.1109/SCORED.2007.4451427","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451427","url":null,"abstract":"A stator-flux-based direct torque control (DTC) of induction machine has shown significant interests to researchers since its offer several advantageous compared to many other control schemes. This scheme requires only one parameter which is a stator resistance in order to estimate the stator flux-linkage, hence the electromagnetic torque can be directly calculated. In practice, a wide variation in stator resistance can occur due to a large temperature variation. Thus, the mismatch between estimated and actual stator resistances will deteriorate the performance of DTC by introducing errors in the stator flux estimation particularly at low speed. Consequently, the torque performance will be degraded. This paper presents the study on stability and performances of DTC due to stator resistance variation. The effect on DTC performances due to the stator resistance variation will be analytically studied with the help of simulation results.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114129569","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: 6
Fault Analysis of a MEMS Tuneable Bandpass Filter MEMS可调谐带通滤波器的故障分析
2007 5th Student Conference on Research and Development Pub Date : 2007-12-01 DOI: 10.1109/SCORED.2007.4451414
Ker Chia Lee, W. Wong, H. T. Su
{"title":"Fault Analysis of a MEMS Tuneable Bandpass Filter","authors":"Ker Chia Lee, W. Wong, H. T. Su","doi":"10.1109/SCORED.2007.4451414","DOIUrl":"https://doi.org/10.1109/SCORED.2007.4451414","url":null,"abstract":"The availability of Micro-Electro-Mechanical Systems (MEMS) switches has enabled the design of a high Q-factor but low insertion loss tuneable bandpass filter. This paper investigates the potential faults that could occur during fabrication and long term operation of a tuneable bandpass filter using MEMS switches. The causes of the filter defects and the resulting filter response will be identified, simulated and co- related, with the final aim of being able to identify the defects by measuring the faulty responses in the future. The different defects are simulated using SONNET to obtain the response of the faulty filter. Parameters such as insertion loss and return loss of the tuneable filter vary for different faults. In the future study, the defects will be recreated and tested experimentally to corroborate simulation findings. Eventually, a relationship between defects and the filter response will be developed.","PeriodicalId":443652,"journal":{"name":"2007 5th Student Conference on Research and Development","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114514906","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: 1
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