2013 15th International Conference on Advanced Computing Technologies (ICACT)最新文献_第2页

Extended performance comparison of hybrid wavelet transform for image compression with varying proportions of constituent transforms 不同分量变换比例下混合小波变换图像压缩的扩展性能比较

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710497

Sudeep D. Thepade, J. Dewan, A. Lohar

{"title":"Extended performance comparison of hybrid wavelet transform for image compression with varying proportions of constituent transforms","authors":"Sudeep D. Thepade, J. Dewan, A. Lohar","doi":"10.1109/ICACT.2013.6710497","DOIUrl":"https://doi.org/10.1109/ICACT.2013.6710497","url":null,"abstract":"The rapid growth of digital imaging applications have increased the need for effective image compression techniques. Image compression minimizes the size of the image without degrading the quality of the image to an unacceptable level. Image compression in transform domain is one of the most popular techniques. Previous work has proved that the hybrid wavelet transforms (HWT) are better than the respective constituent orthogonal transforms in image compression[1, 2]. Here the extended performance comparison of HWT for image compression is presented with varying the constituent transforms and the proportions of the constituent transforms to test the effect on quality of image compression. The experimentation is done on set of 20 images by varying the constituent transforms, proportion of constituent transforms and compression ratios (CR). The constituent transforms used to generated HWT are Cosine transform, Sine transform, Slant transform, Kekre transform, Walsh transform and Haar transform. Here five proportions of constituent transforms alias 1:16, 1:4, 1:1, 4:1, 16:1 are considered for generation of HWT. Results prove that 4:1, 1:1, 1:4 proportions of constituent transforms in HWT gives better performance as compared to 1:1 proportion of constituent transforms for different compression ratios. Also for 95% compression ratio, 4:1 ratio of DCT-Haarconstituent transforms in HWT gives better results. 1:1 ratio of DCT-Haarconstituent transforms give better results for compression ratios between 70% and 90%. For lower compression ratios, 1:4 proportions of DCT-Haarconstituent transformsin HWT gives better performance.","PeriodicalId":302640,"journal":{"name":"2013 15th International Conference on Advanced Computing Technologies (ICACT)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127091844","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: 19

A robust image watermarking scheme using simplified significant wavelet tree quantization 一种基于简化有效小波树量化的鲁棒图像水印方案

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710545

L. Sumalatha, V. Krishna, M. R. Kumar

引用次数: 3

A survey of cyber crime in India 印度网络犯罪调查

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710503

Vinit Kumar Gunjan, Amit Kumar, Sharda Avdhanam

引用次数: 23

Towards on high performance computing of medical imaging based on graphical processing units 基于图形处理单元的医学影像高性能计算研究

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710504

K. Suresh, M. Babu

引用次数: 1

Early stage detection of breast cancer using novel image processing techniques, Matlab and Labview implementation 采用新颖的乳腺癌早期检测图像处理技术，用Matlab和Labview实现

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710511

Spandana Paramkusham, Kunda M. M. Rao, B. V. V. S. N. Prabhakar Rao

引用次数: 24

Vector based hysteresis current control scheme for vector controlled induction motor drives 基于矢量控制的异步电动机磁滞电流控制方案

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710537

M. Rama Prasad Reddy, T. Reddy, B. Brahmaiah

引用次数: 5

PAPR reduction in OFDM systems using PTS and various modulation schemes 使用PTS和各种调制方案的OFDM系统的PAPR降低

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710486

Srinu Pyla, K. Raju, N. BalaSubrahmanyam

{"title":"PAPR reduction in OFDM systems using PTS and various modulation schemes","authors":"Srinu Pyla, K. Raju, N. BalaSubrahmanyam","doi":"10.1109/ICACT.2013.6710486","DOIUrl":"https://doi.org/10.1109/ICACT.2013.6710486","url":null,"abstract":"Day by day number of users and services are increasing rapidly. To accommodate all, very high speed communication systems are required. Orthogonal Frequency Division Multiplexing (OFDM) is an suitable technique for achieving high data rate transmission but the main drawback of OFDM is increase in peak power termed as high peak to average power ratio (PAPR). This high PAPR leads to an in-band distortion due to clipping and out of band radiation due to spectral broadening in power limited devices especially in wireless applications. There are number of techniques have been proposed to attack this problem. In this paper, Partial Transmit Sequence (PTS) technique is considered as it is a distortionless one and reduces peak power significantly. The improvement of PAPR with order of digital modulation schemes is investigated and minimum PAPR phase factors are identified. These phase factors information is transmitted as side information along with desired data. Data is encoded using Low Density Parity Check (LDPC) code as the performance of this code is nearest to the shannon's channel capacity and the results are simulated using MATLAB.","PeriodicalId":302640,"journal":{"name":"2013 15th International Conference on Advanced Computing Technologies (ICACT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598036","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

Multiple sequence alignment a quick tour 多序列比对快速游览

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710499

Radha Chintapalli, Amit Kumar, Laxminarayana Parayitam

引用次数: 2

Reactive power optimization using repeated genetic algorithm and data prediction 基于重复遗传算法和数据预测的无功优化

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710533

H. Jayatheertha, J. Yadagiri

引用次数: 1

A novel fault-tolerant task scheduling algorithm for computational grids 一种新的计算网格容错调度算法

2013 15th International Conference on Advanced Computing Technologies (ICACT) Pub Date : 2013-09-01 DOI: 10.1109/ICACT.2013.6710529

K. Naik, N. Satyanarayana

{"title":"A novel fault-tolerant task scheduling algorithm for computational grids","authors":"K. Naik, N. Satyanarayana","doi":"10.1109/ICACT.2013.6710529","DOIUrl":"https://doi.org/10.1109/ICACT.2013.6710529","url":null,"abstract":"A computational grid is a hardware and software infrastructure that provides consistent, dependable, pervasive and expensive access to high-end computational capabilities in a multi-institutional virtual organization. Computational grids provide computing power needed for execution of tasks. Scheduling the task in computing grid is an important problem. To select and assign the best resources for task, we need a good scheduling algorithm in grids. As grids typically consist of strongly varying and geographically distributed resources, choosing a fault-tolerant computational resource is an important issue. The main scheduling strategy of most fault-tolerant scheduling algorithms depends on the response time and fault indicator when selecting a resource to execute a task. In this paper, a scheduling algorithm is proposed to select the resource, which depends on a new factor called Scheduling Success indicator (SSI). This factor consists of the response time, success rate and the predicted Experience of grid resources. Whenever a grid scheduler has tasks to schedule on grid resources, it uses the Scheduling Success indicator to generate the scheduling decisions. The main scheduling strategy of the Fault-tolerant algorithm is to select resources that have lowest tendency to fail and having more experience in task execution. Extensive experiment simulations are conducted to quantify the performance of the proposed algorithm on GridSim. GridSim is a Java based discrete-event Grid simulation toolkit. Experiments have shown that the proposed algorithm can considerably improve grid performance in terms of throughput, failure tendency and worth.","PeriodicalId":302640,"journal":{"name":"2013 15th International Conference on Advanced Computing Technologies (ICACT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133152666","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