2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)最新文献_第6页

Video object segmentation based on adaptive background and Wronskian change detection model 基于自适应背景和朗斯基变化检测模型的视频目标分割

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719786

D. Panda, S. Meher

{"title":"Video object segmentation based on adaptive background and Wronskian change detection model","authors":"D. Panda, S. Meher","doi":"10.1109/ICSPCOM.2013.6719786","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719786","url":null,"abstract":"In computer vision, detection of moving objects from a complex video scene is an important and challenging problem. It finds application in many computer vision and artificial intelligent systems. Background subtraction is a very popular and powerful technique in computer vision for moving object detection in the presence of stationary camera. In the proposed scheme, Wronskian change detection model (WM) is used to find out the change between the constructed background and the incoming video frame. In this paper we have used WM in the Gaussian distribution for video object segmentation. We have presented a new equation for variance updation in the neighbourhood. The parameters of Gaussian (i.e., the mean and the variance) are updated for linearly dependent pixels using a Gaussian weight learning rate in the neigbourhood. The result of the proposed scheme is found to provide accurate silhouette of moving objects in presence of illumination variation and unstationary backgrounds like fountain, ocean, curtain and Train. We compare our method with other modelling techniques and report experimental results.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130479990","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

New speech enhancement using Gamma tone filters and Perceptual Wiener filtering based on sub banding 基于子带的伽玛音滤波器和感知维纳滤波的新型语音增强

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719789

Kishore Odugu, B. M. S. Sreenivasa Rao

{"title":"New speech enhancement using Gamma tone filters and Perceptual Wiener filtering based on sub banding","authors":"Kishore Odugu, B. M. S. Sreenivasa Rao","doi":"10.1109/ICSPCOM.2013.6719789","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719789","url":null,"abstract":"A two stage noise reduction approach is proposed in this paper. This paper focuses on Wiener filter based single channel speech enhancement method. First stage consists of Gamma tone filtering method for sub banding and synthesizing; perceptualWiener filter is used to apply gain function on each sub band to reduce the noise at each critical frequency. Performance of perceptual Wiener filter is improved by finding self adaptive averaging factor to estimate a priori SNR. To reduce residual musical noise that remains in the enhanced speech, perceptual weighting filter is developed based on simultaneous and temporal masking effects of human auditory system is used as a second stage in the proposed system. An unvoiced speech enhancement algorithm is also integrated into the system to improve the intelligibility of speech. Through rigorous objective and subjective evaluations, it is shown that the proposed speech enhancement system is capable of reducing noise with little speech distortion in adverse noise environments and overall performance is superior to several competitive methods.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132379093","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: 3

Assessment of different change vector analysis techniques over rugged terrain MODIS sensor satellite imagery 不同变化矢量分析技术在崎岖地形MODIS传感器卫星图像上的评估

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719803

Sartajvir Singh, R. Talwar

{"title":"Assessment of different change vector analysis techniques over rugged terrain MODIS sensor satellite imagery","authors":"Sartajvir Singh, R. Talwar","doi":"10.1109/ICSPCOM.2013.6719803","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719803","url":null,"abstract":"Remote sensed information is a primary source of oversee Land-Use/Land-Cover (LULC) changes for environmental impacts, natural hazard analysis and region planning. Change Vector Analysis (CVA) as change detection technique has level headed capability of extracting and identifying LULC changes in terms of change-magnitude and change-direction from two different temporal satellite imageries. During past decade, many effective CVA based change detection techniques such as Improved Change Vector Analysis (ICVA), Modified Change Vector Analysis (MCVA) and Change Vector Analysis Posterior-probability Space (CVAPS) have been developed. But the assortment of an appropriate CVA technique for particular area is a very essential and difficult process because different CVA techniques have their own features and no one technique is applicable to all case studies. Aforementioned, CVA techniques were rarely examined on snow cover area of rugged terrain. In present paper, different CVA techniques have been investigated over snow cover area of rugged terrain MODIS satellite imagery to evaluate a technique which could more accurately distinguish the “change” and “no-change” pixels, and also accurately perform “from-to” change detection. Experiment outcomes confirm that CVAPS change detection technique has greater potential than MCVA and ICVA techniques to determine the overall transformed information over snow cover area of rugged terrain. It is expected that this paper will effectively guide the natural hazard forecaster's or algorithm engineer's to accurately detect the multi-temporal environment changes over LULC rugged terrain.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122956603","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

Design of frame buffer for 1 THz energy efficient digital image processor based on HSLVDCI I/O standard in FPGA FPGA中基于HSLVDCI I/O标准的1thz高能效数字图像处理器帧缓冲器设计

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719799

P. Saigal, B. Pandey, Ekta Walia

{"title":"Design of frame buffer for 1 THz energy efficient digital image processor based on HSLVDCI I/O standard in FPGA","authors":"P. Saigal, B. Pandey, Ekta Walia","doi":"10.1109/ICSPCOM.2013.6719799","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719799","url":null,"abstract":"This paper proposes design of frame buffer for a digital image processor. This design is implemented on Virtex-6 Field Programmable Gate Array (FPGA). In this work, three classes of High-Speed Low Voltage Digitally Controlled Impedance (HSLVDCI) are used to compare dynamic power requirements for the frame buffer. The experiment is performed at 1 GHz, 10 GHz, and 100 GHz and 1 THz device frequencies. The power utilization of the frame buffer is compared to find out the most energy efficient class of HSLVDCI. Dynamic power consists of clock power, logic power, signal power and I/O power. I/O power is higher than any other dynamic power, whereas logic power is the least used dynamic power. It is observed that the power requirements for clock, logic and signal are same for all the three I/O standards. There is an increase in I/O power with the increase in reference voltage of I/O standard. When frame buffer is operating at 1 GHz, the reduction in I/O power requirement of HSLVDCI_18 is 36.84% and of HSLVDCI_15 is 52.63% as compared to HSLVDCI_25. There is an improvement of 36.17% and 53.19% in I/O power when implemented with HSLVDCI_18 and HSLVDCI_15 respectively, as compared to HSLVDCI_25, at 10 GHz. When operating at 100 GHz, there is a reduction of 36.08%, 53.14% in I/O power of HSLVDCI_18 and HSLVDCI_15 respectively as compared to HSLVDCI_25. Also, the I/O power required by HSLVDCI_18 and HSLVDCI_15 is 36.09%, 53.14% lower respectively, than required in HSLVDCI_25, for the case of 1THz operating frequency.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123888261","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: 7

Comparison of coded-BOC and uncoded BOC modulation for radionavigation 用于无线电导航的编码BOC和非编码BOC调制的比较

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719771

R. C. Jain, Rahul Kaushik

引用次数: 1

Performance analysis and modeling of congestion control algorithms based on active queue management 基于主动队列管理的拥塞控制算法的性能分析与建模

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719832

Sanjeev Patel

{"title":"Performance analysis and modeling of congestion control algorithms based on active queue management","authors":"Sanjeev Patel","doi":"10.1109/ICSPCOM.2013.6719832","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719832","url":null,"abstract":"We have considered various types of congestion control algorithms. Each congestion algorithm has its own advantages and it would vary from parameters to parameters. Random Early Detection (RED) is more focused on queue length and BLUE is care about loss of packets. In this paper we have found the problems with existing congestion control algorithms. We have tried to show their performance of RED, SFQ, and REM in terms of performance parameters i.e. delay, throughput, loss rate etc. for our considered network configurations. Similarly BLUE and Random Exponential Marking (REM) are more focused on packet loss and mismatch respectively, mismatch occurring in REM due to either input rate and link capacity or queue length and target. In order to restrict the rising packet loss rates caused by network traffic, active queue management technique such as REM has come into picture. Flow Random Early Drop (FRED) keeps state information based on instantaneous queue occupancy of a given flow. Stochastic Fair Queuing (SFQ) ensures fair access to network resources and prevents a busty flow from consuming more than its fair share. Stabilized RED (SRED) is another approach of detecting nonresponsive flows. In this paper, we proposed a model to calculate dropping probability and packet loss for Active Queue Management (AQM). At the last, we have shown a comparative analysis of the loss delay product (LDP) as a new parameter of performance measure obtained from simulation on ns2 for different AQM algorithms. It has been observed that performance parameters are varying according to the various congestion algorithms used in the simulation. RED achieved the best result in terms of the delay but in terms of throughput, loss ratio, and utilization REM shows the best results in this network configuration. But, RED performed best at low link capacity in terms of new measured parameter LDP.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123271612","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: 10

Effect of temperature dependence on performance of Digital CMOS circuit technologies 温度依赖性对数字CMOS电路技术性能的影响

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719819

Shruti Kalra

引用次数: 9

A design method using a set of objective functions for near-perfect reconstruction filter bank based transmultiplexer for onboard transparent processor 提出了一种基于目标函数的基于板载透明处理器的近完美重构滤波器组复用器的设计方法

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719796

N. Mishra, Pramod Mishra, Himanshu Shah, A. Banik

引用次数: 5

A simple approach for image enhancement using new power-law transformation operators 一种使用新的幂律变换算子进行图像增强的简单方法

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719797

O. P. Verma, Nitesh Gill, Pooja Gupta, Megha

引用次数: 6

Improved Directional Local Extrema Patterns as a feature vector for CBIR 改进的定向局部极值模式作为CBIR的特征向量

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719790

L. Koteswara Rao, Ve, Rao Principal, P. Rohini, Asst. Professor, Related Wark

引用次数: 0