2007 10th international conference on computer and information technology最新文献_第2页

Designing a low cost microcontroller-based device for multipurpose learning 设计一种低成本的基于微控制器的多用途学习设备

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579378

A. Arefin, K.M.M. Habib, R. Sultana, S. Kabir

引用次数: 1

Performance analysis of beamforming algorithm for noise cancellation 波束形成噪声消除算法的性能分析

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579394

M. Alom, I.A. Khan, M.Z. Alam, M. S. Nasrin

引用次数: 2

A learning algorithm for metasearching using rough set theory 基于粗糙集理论的元搜索学习算法

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579421

R. Ali, M. M. Sufyan Beg

引用次数: 4

VLSI implementation of Inverse Discrete Wavelet Transform for JPEG 2000 离散逆小波变换在JPEG 2000中的VLSI实现

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579438

M. S. Bhuyan, N. Amin, M.A.H. Madesa, M.S. Islam

{"title":"VLSI implementation of Inverse Discrete Wavelet Transform for JPEG 2000","authors":"M. S. Bhuyan, N. Amin, M.A.H. Madesa, M.S. Islam","doi":"10.1109/ICCITECHN.2007.4579438","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579438","url":null,"abstract":"This paper presents hardware design flow of the inverse discrete wavelet transform (IDWT) core which is the second-most computationally intensive block in JPEG 2000 image compression standard. Lifting scheme (LS) is implemented in designing the IDWT hardwire module that reduces the number of execution steps involved in computation to almost one-half of those needed with a conventional convolution approach. In addition, the LS is amenable to ldquoin-placerdquo computation, so that the IDWT can be implemented in low memory systems. The IDWT module does not comprise any hardware multiplier unit and therefore suitable for development of high performance image processor. The IDWT module has been developed in VHDL using Quartus II from Altera. The VHDL model is validated through simulation using ModelSim-Altera. Simulation results show the IDWT module can perform three levels inverse transform on a 256times256 forward transformed image in 8.7 ms. Latency of the system is calculated 50 ns and the power dissipation by the device is 662 mW. The IDWT module consumes just 57 combinational ALUTs and 60 logic registers of a Stratix II device, and runs at 300 MHz clock frequency, reaches a speed performance suitable for several real-time applications. Throughput in terms of input coefficients processed per second of the IDWT core is 7.13Msamples. The motivation in designing is to reduce its complexity, enhance its performance and to make it suitable development on a reconfigurable FPGA based platform for VLSI implementation.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"16 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":"123377533","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

A novel Fuzzy logic based flux weakening speed control for IPMSM drive with variable direct and quadrature axis inductances 一种基于模糊逻辑的可变直交轴电感永磁同步电动机磁链弱化速度控制方法

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579367

Md. Jahangir Hossain, M. S. Hossain, M. Hoque, M. S. Anower

引用次数: 2

Lossless compression of JPEG and GIF files through lexical permutation sorting with Greedy Sequential Grammar Transform based compression 通过基于贪婪顺序语法变换的压缩，通过词法排列排序实现JPEG和GIF文件的无损压缩

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579416

S.K. Saha, M. K. Baowaly, M. Islam, M. Rahaman

引用次数: 0

High performance reliable obstacle detection and height measurement by stereo camera for Intelligent Home Service Robot 基于立体摄像机的智能家庭服务机器人高性能、可靠的障碍物检测与高度测量

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579364

F. Siddiky, M. Alam, Tanveer Ahsan

引用次数: 4

Lower bound on number of planes for vertically stacked optical banyan networks with link failures 具有链路故障的垂直堆叠光榕树网络的平面数下界

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579384

B. Sultana, M. Khandker

{"title":"Lower bound on number of planes for vertically stacked optical banyan networks with link failures","authors":"B. Sultana, M. Khandker","doi":"10.1109/ICCITECHN.2007.4579384","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579384","url":null,"abstract":"Vertically stacked optical banyan (VSOB) networks are attractive for serving as optical switching systems due to the good properties of banyan network structures (such as the small depth and self-routing capability). Crosstalk between optical signals passing through the same DC is an intrinsic drawback in DC-based optical networks. Vertical stacking of multiple copies (planes) of an optical banyan network, namely vertically stacked optical banyan (VSOB) network, can remove the crosstalk problem in switch network, and can also make the network nonblocking. This paper deals with the blocking behavior of VSOB networks when some links are broken or failed. We found the approximate value for lower bound on number of planes required to make a VSOB networks nonblocking allowing link-failures. We have an interesting finding that the blocking probability of the VSOB networks does not always increase with the increase of link-failures; blocking probability decreases for certain range of link-failures, and then increases again. As far as we know that for switching networks, such fluctuating variation of blocking probability with the increase of link failures rate deserves special attention in switch design.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"242 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":"129977467","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

A study on text summarization techniques and implement few of them for Bangla language 孟加拉语文本摘要技术的研究与实现

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579374

Md Nizam Uddin, Shakil Akter Khan

引用次数: 30

Iris Recognition: A Java based implementation 虹膜识别:基于Java的实现

2007 10th international conference on computer and information technology Pub Date : 2007-12-01 DOI: 10.1109/ICCITECHN.2007.4579428

Kaushik Roy, Darrel Hudgin, Prabir Bhattacharya, Ramesh Chandra Debnath

{"title":"Iris Recognition: A Java based implementation","authors":"Kaushik Roy, Darrel Hudgin, Prabir Bhattacharya, Ramesh Chandra Debnath","doi":"10.1109/ICCITECHN.2007.4579428","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579428","url":null,"abstract":"Biometric authentication has become increasingly popular in security systems. Recently, the systems based on the human iris, which develops a unique pattern before birth, have produced very high rates of recognition. The iris image is first blurred using a Gaussian filter, and the edge is detected using the Canny edge detection technique. An algorithm, which uses the center of the image as a starting point, is proposed to isolate the pupillary region. The initial estimate of the location of the pupil is then refined, and the iris is located by using the integrodifferential operator. In order to detect the upper and the lower eyelids, we deploy the integrodifferential operator again; however, the path of contour integration is changed from circular to arcuate. A thresholding technique is then applied to locate the eyelashes. The annular iris region is unwrapped from a polar coordinate system to a rectangular canvas. The 2D Gabor wavelets are used to extract the discriminating features. Then, the phase information is extracted to produce an iris code of 2048 bit and a mask, which denotes the noisy regions, of the same length. The Hamming distance is applied for the matching purpose. We also design a graphical user interface (GUI) in Java which allows the comparison of two images, the verification that an image is that of a specific person, and to search through the previously scanned irises for an exact match. The proposed scheme is computationally effective as well as reliable in term of recognition rate of 99.21%.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"19 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":"122422032","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