首页 > 最新文献

2014 International Conference on Communication and Signal Processing最新文献

英文 中文
Analysis of leakage current and leakage power reduction during write operation in CMOS SRAM cell CMOS SRAM单元写入过程中漏电流及漏功率降低分析
Pub Date : 2014-11-10 DOI: 10.1109/ICCSP.2014.6949897
K. Khare, R. Kar, D. Mandal, S. Ghoshal
Leakage power is a major issue for short channel devices. As the technology is shrinking (i.e., 180nm, 90nm, 45nm. etc.) the leakage current is increasing very fast. So, several methods and techniques have been proposed for leakage reduction in CMOS digital integrated circuits. Leakage power dissipation has become a sizable proportion of the total power dissipation in integrated circuit. This paper demonstrates the ideas of 6T, 8T and 10T models with sleep transistors. This proposed SRAM cells give the advantages over basic 6T, 8T and 10T transistor models. The SRAM cell with sleep transistor shows better leakage reduction approach than stack approaches. Here in this paper Analog environment virtuoso (cadence) simulator is used for analysis of the power associated with CMOS SRAM cell for 180nm technology.
漏功率是短通道器件的主要问题。随着技术的不断缩小(即180nm、90nm、45nm)。等)泄漏电流增加非常快。因此,人们提出了几种降低CMOS数字集成电路漏损的方法和技术。泄漏功耗已成为集成电路总功耗中相当大的一部分。本文阐述了采用休眠晶体管的6T、8T和10T模型的思想。这种SRAM单元比基本的6T, 8T和10T晶体管模型具有优势。具有休眠晶体管的SRAM单元显示出比堆栈方法更好的减少漏损的方法。本文利用模拟环境virtuoso (cadence)模拟器对180nm工艺的CMOS SRAM单元的功耗进行分析。
{"title":"Analysis of leakage current and leakage power reduction during write operation in CMOS SRAM cell","authors":"K. Khare, R. Kar, D. Mandal, S. Ghoshal","doi":"10.1109/ICCSP.2014.6949897","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949897","url":null,"abstract":"Leakage power is a major issue for short channel devices. As the technology is shrinking (i.e., 180nm, 90nm, 45nm. etc.) the leakage current is increasing very fast. So, several methods and techniques have been proposed for leakage reduction in CMOS digital integrated circuits. Leakage power dissipation has become a sizable proportion of the total power dissipation in integrated circuit. This paper demonstrates the ideas of 6T, 8T and 10T models with sleep transistors. This proposed SRAM cells give the advantages over basic 6T, 8T and 10T transistor models. The SRAM cell with sleep transistor shows better leakage reduction approach than stack approaches. Here in this paper Analog environment virtuoso (cadence) simulator is used for analysis of the power associated with CMOS SRAM cell for 180nm technology.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120969904","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
Neural Crypto-Coding as DES: Turbo over Land Mobile Satellite (LMS) channel 基于DES的神经密码编码:在陆地移动卫星(LMS)信道上的Turbo
Pub Date : 2014-11-10 DOI: 10.1109/ICCSP.2014.6950060
Rajashri Khanai, G. Kulkarni, Dattaprasad Torse
Modern wireless communications have increased requirements for reliable communication with significant security mechanisms. In this paper cryptography and error correction coding is combined in a single step known as “Crypto-Coding”. The focus is on the application of neural networks to Crypto- Coding. This approach provides data security for reliable transmission as encryption and error correction takes place in a single step. The computational costs and increase efficiency, mainly in practical system performance is evaluated over Land Mobile Satellite (LMS) channel. We are combining Data Encryption Standard (DES) and Turbo coding in a single step to significantly reduce realizations. A number of experimental studies show applicability of the technique to a selected set of areas in cryptography and error correction coding. Simulation results show that the BER performance of the neural Crypto- Coding is close to the Crypto-Coding, for data length equal to 1024 bits, and achieves a BER of about 4 × 10-5 at an SNR of 10 dB. The proposed algorithms are well suited for implementation on a VLSI-platform.
现代无线通信对具有重要安全机制的可靠通信的要求越来越高。本文将密码学和纠错编码结合在一个步骤中,称为“密码编码”。重点研究了神经网络在加密编码中的应用。这种方法为可靠传输提供了数据安全性,因为加密和纠错在一个步骤中完成。在陆地移动卫星(LMS)信道上评估了计算成本和提高效率,主要体现在实际系统性能上。我们将数据加密标准(DES)和Turbo编码结合在一起,以显著减少实现。许多实验研究表明,该技术适用于密码学和纠错编码的选定领域。仿真结果表明,当数据长度为1024比特时,神经网络加密编码的误码率接近于加密编码,在信噪比为10 dB的情况下,误码率约为4 × 10-5。所提出的算法非常适合在vlsi平台上实现。
{"title":"Neural Crypto-Coding as DES: Turbo over Land Mobile Satellite (LMS) channel","authors":"Rajashri Khanai, G. Kulkarni, Dattaprasad Torse","doi":"10.1109/ICCSP.2014.6950060","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950060","url":null,"abstract":"Modern wireless communications have increased requirements for reliable communication with significant security mechanisms. In this paper cryptography and error correction coding is combined in a single step known as “Crypto-Coding”. The focus is on the application of neural networks to Crypto- Coding. This approach provides data security for reliable transmission as encryption and error correction takes place in a single step. The computational costs and increase efficiency, mainly in practical system performance is evaluated over Land Mobile Satellite (LMS) channel. We are combining Data Encryption Standard (DES) and Turbo coding in a single step to significantly reduce realizations. A number of experimental studies show applicability of the technique to a selected set of areas in cryptography and error correction coding. Simulation results show that the BER performance of the neural Crypto- Coding is close to the Crypto-Coding, for data length equal to 1024 bits, and achieves a BER of about 4 × 10-5 at an SNR of 10 dB. The proposed algorithms are well suited for implementation on a VLSI-platform.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131901053","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
2 D autoregressive model for texture analysis and synthesis 纹理分析与合成的二维自回归模型
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950027
D. Vaishali, R. Ramesh, J. Christaline
Spatial autoregressive (AR) models have been extensively used to represent texture images in machine learning applications. This work emphasizes the contribution of 2D autoregressive models for analysis and synthesis of textural images. Autoregressive model parameters as a feature set of texture image represent texture and used for synthesis. Yule walker Least Square (LS) method has used for parameter estimation. The test statistics for choice of proper neighbourhood (N) has also been suggested. The Brodatz texture image album has chosen for the experimentation. Parameters have estimated from the textures. The test statistics decides the best neighbourhood or proper order of the model. The synthesized texture image and the original texture image have compared for perceptual similarities. It is been inferred that the proper neighbourhood for a given texture is unique and solely depends on the properties of the texture.
空间自回归(AR)模型在机器学习应用中被广泛用于表示纹理图像。这项工作强调了二维自回归模型对纹理图像分析和合成的贡献。自回归模型参数作为纹理图像的特征集代表纹理,用于纹理合成。采用Yule walker最小二乘(LS)方法进行参数估计。给出了适当邻域(N)选择的检验统计量。实验选择了Brodatz纹理图集。从纹理中估计参数。检验统计量决定模型的最佳邻域或适当的顺序。将合成的纹理图像与原始纹理图像进行感知相似性比较。可以推断,给定纹理的适当邻域是唯一的,并且完全取决于纹理的属性。
{"title":"2 D autoregressive model for texture analysis and synthesis","authors":"D. Vaishali, R. Ramesh, J. Christaline","doi":"10.1109/ICCSP.2014.6950027","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950027","url":null,"abstract":"Spatial autoregressive (AR) models have been extensively used to represent texture images in machine learning applications. This work emphasizes the contribution of 2D autoregressive models for analysis and synthesis of textural images. Autoregressive model parameters as a feature set of texture image represent texture and used for synthesis. Yule walker Least Square (LS) method has used for parameter estimation. The test statistics for choice of proper neighbourhood (N) has also been suggested. The Brodatz texture image album has chosen for the experimentation. Parameters have estimated from the textures. The test statistics decides the best neighbourhood or proper order of the model. The synthesized texture image and the original texture image have compared for perceptual similarities. It is been inferred that the proper neighbourhood for a given texture is unique and solely depends on the properties of the texture.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115652971","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: 9
Designing of FPGA based high performance 32 bit FFT processor with BIST 基于FPGA的高性能32位FFT处理器的设计
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949921
Abhijit P. Tathode, Ratnaprabha W. Jassutkar
Designing and implementation of 32 bit and 64 point pipelined FFT processor is presented in this paper. This FFT processor is going to be implemented on Field Programmable Gate Array (FPGA). The aim behind this is to reduce the number of cycles required for computation. The architecture of FFT has two pipelines. Out of this one pipeline is present in execution of the complex multiplication of butterfly unit and other is present in the RAM unit. In this architecture a novel simple address mapping scheme is proposed. The twiddle factor in this architecture is not going to be stored in ROM memory, it is going to be generated and accessed directly. The Built In Self Test (BIST) provided in this is used to design such technique which test itself.
本文介绍了一种32位64点流水线式FFT处理器的设计与实现。该FFT处理器将在现场可编程门阵列(FPGA)上实现。这样做的目的是减少计算所需的循环次数。FFT的架构有两个管道。其中一个管道存在于蝴蝶单元的复杂乘法的执行中,另一个存在于RAM单元中。在这个体系结构中,提出了一种新的简单的地址映射方案。在这个体系结构中,旋转因子不会存储在ROM内存中,而是直接生成和访问。本文档中提供的内置自测(BIST)用于设计这种测试自身的技术。
{"title":"Designing of FPGA based high performance 32 bit FFT processor with BIST","authors":"Abhijit P. Tathode, Ratnaprabha W. Jassutkar","doi":"10.1109/ICCSP.2014.6949921","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949921","url":null,"abstract":"Designing and implementation of 32 bit and 64 point pipelined FFT processor is presented in this paper. This FFT processor is going to be implemented on Field Programmable Gate Array (FPGA). The aim behind this is to reduce the number of cycles required for computation. The architecture of FFT has two pipelines. Out of this one pipeline is present in execution of the complex multiplication of butterfly unit and other is present in the RAM unit. In this architecture a novel simple address mapping scheme is proposed. The twiddle factor in this architecture is not going to be stored in ROM memory, it is going to be generated and accessed directly. The Built In Self Test (BIST) provided in this is used to design such technique which test itself.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123049683","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 dual-band E and T-shaped planar inverted antenna for WLAN applications 一种用于WLAN应用的新型双频E型和t型平面倒置天线
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950179
S. Sairam, S. Arunmozhi
This paper presents a dual-band planar antenna with a compact radiator for 2.5/5.8-GHz wireless local area network (WLAN) applications. The antenna consists of an E-shaped and T-shaped radiating elements to generate two resonant modes for dual-band operation. The T-element fed directly by a 50 ohm micro strip line is designed to generate a frequency band at around 5.5GHz to cover the two higher bands of the WLAN system (using the IEEE 802.11a standard). The E-element is coupled-fed through the T-element and designed to generate a frequency band at 2.44GHz to cover the lower band of the WLAN system (using the 802.11b/g standards). As a result, the E- and T-elements together are very compact with a total area of only 13.75*8.4mm2. Parametric study on the key dimensions is investigated by computer simulation using ADS (ADVANCE DESIGN SYSTEM).The antenna is designed on a 40*30*0.2mm3 size with FR4 substrate. The stimulation results are measured for the return loss, radiation pattern, gain and efficiency.
本文提出了一种适用于2.5/5.8 ghz无线局域网(WLAN)应用的带紧凑型辐射器的双频平面天线。天线由e形和t形辐射元件组成,产生两种谐振模式,实现双频工作。由50欧姆微带线直接馈电的t元件设计用于产生约5.5GHz的频段,以覆盖WLAN系统的两个更高频段(使用IEEE 802.11a标准)。e -单元通过t -单元耦合馈电,设计用于产生2.44GHz的频段,以覆盖WLAN系统的较低频段(使用802.11b/g标准)。因此,E-和t -元素合在一起非常紧凑,总面积仅为13.75*8.4mm2。利用ADS (ADVANCE DESIGN SYSTEM)进行了关键尺寸的参数化研究。天线设计为40*30*0.2mm3尺寸,采用FR4基板。测量了回波损耗、辐射方向图、增益和效率。
{"title":"A novel dual-band E and T-shaped planar inverted antenna for WLAN applications","authors":"S. Sairam, S. Arunmozhi","doi":"10.1109/ICCSP.2014.6950179","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950179","url":null,"abstract":"This paper presents a dual-band planar antenna with a compact radiator for 2.5/5.8-GHz wireless local area network (WLAN) applications. The antenna consists of an E-shaped and T-shaped radiating elements to generate two resonant modes for dual-band operation. The T-element fed directly by a 50 ohm micro strip line is designed to generate a frequency band at around 5.5GHz to cover the two higher bands of the WLAN system (using the IEEE 802.11a standard). The E-element is coupled-fed through the T-element and designed to generate a frequency band at 2.44GHz to cover the lower band of the WLAN system (using the 802.11b/g standards). As a result, the E- and T-elements together are very compact with a total area of only 13.75*8.4mm2. Parametric study on the key dimensions is investigated by computer simulation using ADS (ADVANCE DESIGN SYSTEM).The antenna is designed on a 40*30*0.2mm3 size with FR4 substrate. The stimulation results are measured for the return loss, radiation pattern, gain and efficiency.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127131195","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
Selective compression technique using Variable-to-Fixed coding 使用可变到固定编码的选择性压缩技术
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950000
Karen Thangam Jacob, K. G. Ganesh Kumar, B. Manjurathi
Inthis paper, we propose a code based technique, Variable-to-Fixed (V-F) coding, for power efficient test data compression. The proposed scheme with the aim of achieving high compression ratio and low power consumption relies on reducing, the number of bits for representing the original test vector and the number of transitions per second. Simulation results on ISCAS'89 benchmark circuits, demonstrate that this optimization methodology helps achieve reduced test data volume than previous schemes for cases where the number of specified bits in the test set is relatively few.
在本文中,我们提出了一种基于编码的技术,可变到固定(V-F)编码,用于节能测试数据压缩。该方案以实现高压缩比和低功耗为目标,主要依靠减少表示原始测试向量的比特数和每秒转换次数。在ISCAS’89基准电路上的仿真结果表明,在测试集中指定比特数相对较少的情况下,这种优化方法有助于实现比以前的方案更少的测试数据量。
{"title":"Selective compression technique using Variable-to-Fixed coding","authors":"Karen Thangam Jacob, K. G. Ganesh Kumar, B. Manjurathi","doi":"10.1109/ICCSP.2014.6950000","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950000","url":null,"abstract":"Inthis paper, we propose a code based technique, Variable-to-Fixed (V-F) coding, for power efficient test data compression. The proposed scheme with the aim of achieving high compression ratio and low power consumption relies on reducing, the number of bits for representing the original test vector and the number of transitions per second. Simulation results on ISCAS'89 benchmark circuits, demonstrate that this optimization methodology helps achieve reduced test data volume than previous schemes for cases where the number of specified bits in the test set is relatively few.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126755893","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
Ant colony optimization variants in image edge detection 蚁群算法在图像边缘检测中的应用
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950034
Susmita Koner, S. Acharyya
Edges in an image are the curves consisting of pixels wherein both side contains pixels with non-uniform intensity. Edge detection is a part of low level image processing, much needed in various fields. Though edge detection can be done by various derivative techniques but it can also be detected well using meta-heuristic approximation algorithms. Ant Colony Optimization (ACO) is such a meta-heuristic technique to solve it. In basic ACO which comprises five phases: Initialization, Construction, Updation, Decision and Visualization, we have proposed and implemented total eight variations in this paper by modifying initialization and construction phase. In the initialization phase we have given a constraint in one variant that ants will be initialized near to edge to eliminate useless construction steps and unwanted edge detection where the other variant is without this constraint which may generate unnecessary edges in the resulting image. We have taken other two variations in selecting the next pixel in the construction phase: in one Greedy method is used, in another Roulette wheel selection method is used. Apart from these, in this phase two more variations have been done depending on memory size of ants i.e. applying tabu list memory of ants and ants without memory. Hence on the basis of two types of selection method used, two types of memory size of ants and two types of initialization phase, we have implemented eight variations individually in this paper. We observe that the variant, with roulette wheel selection, incorporated with the tabu list memory of ants, and with the new initialization condition outperforms others.
图像中的边缘是由像素组成的曲线,其中两侧包含强度不均匀的像素。边缘检测是低层图像处理的一部分,在各个领域都非常需要。虽然边缘检测可以通过各种衍生技术完成,但也可以使用元启发式近似算法很好地检测到边缘。蚁群算法(Ant Colony Optimization, ACO)就是解决这一问题的一种元启发式方法。在包括初始化、构建、更新、决策和可视化五个阶段的基本蚁群算法中,我们通过修改初始化和构建阶段,提出并实现了总共八个变化。在初始化阶段,我们在一个变体中给出了一个约束,即蚂蚁将在边缘附近初始化,以消除无用的构造步骤和不必要的边缘检测,而另一个变体没有这个约束,这可能会在生成的图像中产生不必要的边缘。我们在构建阶段选择下一个像素时采取了另外两种变化:在一种贪心方法中使用,在另一种轮盘选择方法中使用。除此之外,根据蚂蚁的内存大小,在这个阶段还做了另外两个变化,即应用蚂蚁的禁忌列表内存和没有内存的蚂蚁。因此,在采用两种选择方法、两种蚂蚁内存大小和两种初始化阶段的基础上,我们分别实现了八种变量。我们观察到,具有轮盘选择、结合蚂蚁禁忌表记忆和新初始化条件的变体优于其他变体。
{"title":"Ant colony optimization variants in image edge detection","authors":"Susmita Koner, S. Acharyya","doi":"10.1109/ICCSP.2014.6950034","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950034","url":null,"abstract":"Edges in an image are the curves consisting of pixels wherein both side contains pixels with non-uniform intensity. Edge detection is a part of low level image processing, much needed in various fields. Though edge detection can be done by various derivative techniques but it can also be detected well using meta-heuristic approximation algorithms. Ant Colony Optimization (ACO) is such a meta-heuristic technique to solve it. In basic ACO which comprises five phases: Initialization, Construction, Updation, Decision and Visualization, we have proposed and implemented total eight variations in this paper by modifying initialization and construction phase. In the initialization phase we have given a constraint in one variant that ants will be initialized near to edge to eliminate useless construction steps and unwanted edge detection where the other variant is without this constraint which may generate unnecessary edges in the resulting image. We have taken other two variations in selecting the next pixel in the construction phase: in one Greedy method is used, in another Roulette wheel selection method is used. Apart from these, in this phase two more variations have been done depending on memory size of ants i.e. applying tabu list memory of ants and ants without memory. Hence on the basis of two types of selection method used, two types of memory size of ants and two types of initialization phase, we have implemented eight variations individually in this paper. We observe that the variant, with roulette wheel selection, incorporated with the tabu list memory of ants, and with the new initialization condition outperforms others.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122952940","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
An improved method for segmentation of point cloud using Minimum Spanning Tree 一种改进的最小生成树点云分割方法
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949960
M. Geetha, R. Rakendu
With the development of low-cost 3D sensing hardware such as the Kinect, three dimensional digital images have become popular in medical diagnosis, robotics etc. One of the difficult task in image processing is image segmentation. The problem become simpler if we add the depth channel along with height and width. The proposed algorithm uses Minimum Spanning Tree (MST) for the segmentation of point cloud. As a pre processing step, first level clustering is done which gives group of cluttered objects. Each of this cluttered group is subjected to more finite level of segmentation using MST based on distance and normal. In our method, we build a weighted planar graph of each of the clustered cloud and construct the MST of the corresponding graph. By taking the advantage of normal, we can separate the surface from the object. The proposed method is applied to different 3D scenes and the results are discussed.
随着Kinect等低成本3D传感硬件的发展,三维数字图像在医疗诊断、机器人等领域得到了广泛应用。图像分割是图像处理的难点之一。如果我们将深度通道与高度和宽度一起添加,问题就会变得简单。该算法采用最小生成树(MST)对点云进行分割。作为预处理步骤,首先进行一级聚类,得到一组杂乱的对象。使用基于距离和法线的MST对每个杂乱组进行更有限的分割。在我们的方法中,我们建立了每个聚类云的加权平面图,并构造了相应图的MST。利用法线的优势,我们可以把表面和物体分开。将该方法应用于不同的三维场景,并对结果进行了讨论。
{"title":"An improved method for segmentation of point cloud using Minimum Spanning Tree","authors":"M. Geetha, R. Rakendu","doi":"10.1109/ICCSP.2014.6949960","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949960","url":null,"abstract":"With the development of low-cost 3D sensing hardware such as the Kinect, three dimensional digital images have become popular in medical diagnosis, robotics etc. One of the difficult task in image processing is image segmentation. The problem become simpler if we add the depth channel along with height and width. The proposed algorithm uses Minimum Spanning Tree (MST) for the segmentation of point cloud. As a pre processing step, first level clustering is done which gives group of cluttered objects. Each of this cluttered group is subjected to more finite level of segmentation using MST based on distance and normal. In our method, we build a weighted planar graph of each of the clustered cloud and construct the MST of the corresponding graph. By taking the advantage of normal, we can separate the surface from the object. The proposed method is applied to different 3D scenes and the results are discussed.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128312948","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
Curvature based localization of nose tip point for processing 3D-face from range images 基于曲率的鼻尖点定位在距离图像中处理三维人脸
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949796
D. Mukherjee, D. Bhattacharjee, M. Nasipuri
Unconstrained acquisition of data from arbitrary subjects results in facial scans with significant pose variations. The challenges in 3D face recognition are into two main stages, namely preprocessing range scans for detection of fiducial detection while identifying/filling missing parts due to occlusions along with outlier noise reduction and during post-processing where actual match is done with stored models. In this work, an algorithm using HK curvature for localization of nose tip fiducial point on 3D-face image is proposed at preprocessing stage. Curvature is evaluated on 3D data following the normalization step. HK curvature classification results potential region segmentation on face and operated further with morphological enhancements. Four types of curvatures- elliptical convex, elliptical concave, hyperbolic convex and hyperbolic concave enhanced curvature profiles are being processed separately. Coarse-to-fine scale space using integral images technique is applied on the curvature images. Localization is boosted using a heuristic driven bag of templates rule. The proposed technique achieved up to 90% accurate nose-tip localization on Gavabdb and FRAV3D face database.
不受约束地从任意对象获取数据导致面部扫描具有显著的姿势变化。3D人脸识别的挑战分为两个主要阶段,即预处理距离扫描以检测基准检测,同时识别/填充由于遮挡和异常噪声降低而缺失的部分,以及在后处理期间与存储模型进行实际匹配。本文提出了一种在预处理阶段利用HK曲率对三维人脸图像鼻尖基点进行定位的算法。在归一化步骤之后,对三维数据计算曲率。HK曲率分类对人脸进行潜在区域分割,并进一步进行形态学增强。分别对椭圆凸、椭圆凹、双曲凸、双曲凹增强曲率轮廓进行了加工。利用积分图像技术对曲率图像进行了从粗到细的尺度空间处理。使用启发式驱动的模板包规则来增强本地化。该方法在Gavabdb和FRAV3D人脸数据库上实现了高达90%的鼻尖定位精度。
{"title":"Curvature based localization of nose tip point for processing 3D-face from range images","authors":"D. Mukherjee, D. Bhattacharjee, M. Nasipuri","doi":"10.1109/ICCSP.2014.6949796","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949796","url":null,"abstract":"Unconstrained acquisition of data from arbitrary subjects results in facial scans with significant pose variations. The challenges in 3D face recognition are into two main stages, namely preprocessing range scans for detection of fiducial detection while identifying/filling missing parts due to occlusions along with outlier noise reduction and during post-processing where actual match is done with stored models. In this work, an algorithm using HK curvature for localization of nose tip fiducial point on 3D-face image is proposed at preprocessing stage. Curvature is evaluated on 3D data following the normalization step. HK curvature classification results potential region segmentation on face and operated further with morphological enhancements. Four types of curvatures- elliptical convex, elliptical concave, hyperbolic convex and hyperbolic concave enhanced curvature profiles are being processed separately. Coarse-to-fine scale space using integral images technique is applied on the curvature images. Localization is boosted using a heuristic driven bag of templates rule. The proposed technique achieved up to 90% accurate nose-tip localization on Gavabdb and FRAV3D face database.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128796808","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
Performance analysis and optimization of radio over fiber link 光纤链路无线电性能分析与优化
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950118
Arun A. Joseph, S. Prince
This paper is an attempt for a thorough appraisal of Radio over Fiber (RoF) systems. RoF system is divided into three main subsystems: Central Station (CS), Optical Fiber Network (OFN) and Base Station (BS). Each subsystem has its own functions, such as signal generation and modulation techniques at the central station, optical fiber characteristics and the detection at the base station. In this paper the merits of RoF systems have acknowledged. The radio frequency and optical modulation techniques, fiber characteristics and detection techniques are studied. The impact of technology choice is reviewed and comparison of optical modulation techniques, optical fiber and receiver are presented. There has been a significant efforts dedicated to the merging of radio frequency and optical fiber technologies targeting the distribution of radio wave signals, in the recent years. The domain of Radio over Fiber (RoF) technologies and systems took birth from these endeavors. This kind of systems promises a secure, cost-effective, and high-capacity mobile and wireless access for the prospect facilitation of broadband, interactive, and multimedia wireless services.
本文是对光纤无线电(RoF)系统进行全面评估的一次尝试。RoF系统分为三个主要子系统:中继站(CS)、光纤网络(OFN)和基站(BS)。每个子系统都有自己的功能,如在中心站的信号产生和调制技术、光纤特性和在基站的检测。本文承认了RoF系统的优点。研究了射频和光调制技术、光纤特性和检测技术。综述了技术选择的影响,并对光调制技术、光纤和接收机进行了比较。近年来,针对无线电波信号的分布,已经有一个重大的努力致力于射频和光纤技术的合并。光纤无线电(RoF)技术和系统领域从这些努力中诞生。这种系统为宽带、交互式和多媒体无线服务的前景提供了安全、经济、高容量的移动和无线接入。
{"title":"Performance analysis and optimization of radio over fiber link","authors":"Arun A. Joseph, S. Prince","doi":"10.1109/ICCSP.2014.6950118","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950118","url":null,"abstract":"This paper is an attempt for a thorough appraisal of Radio over Fiber (RoF) systems. RoF system is divided into three main subsystems: Central Station (CS), Optical Fiber Network (OFN) and Base Station (BS). Each subsystem has its own functions, such as signal generation and modulation techniques at the central station, optical fiber characteristics and the detection at the base station. In this paper the merits of RoF systems have acknowledged. The radio frequency and optical modulation techniques, fiber characteristics and detection techniques are studied. The impact of technology choice is reviewed and comparison of optical modulation techniques, optical fiber and receiver are presented. There has been a significant efforts dedicated to the merging of radio frequency and optical fiber technologies targeting the distribution of radio wave signals, in the recent years. The domain of Radio over Fiber (RoF) technologies and systems took birth from these endeavors. This kind of systems promises a secure, cost-effective, and high-capacity mobile and wireless access for the prospect facilitation of broadband, interactive, and multimedia wireless services.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128291472","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: 9
期刊
2014 International Conference on Communication and Signal Processing
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1