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2013 IEEE International Conference ON Emerging Trends in Computing, Communication and Nanotechnology (ICECCN)最新文献

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A no-reference image quality assessment 无参考图像质量评估
A. K. Kemalkar, V. Bairagi
This paper presents a no-reference image quality assessment, targeted towards blur distortions based on the study of human blur perception for varying contrast values. A probabilistic framework is developed based on the sensitivity of human blur perception at different contrasts. Utilizing this framework, the probability of detecting blur at each edge in an image is estimated. The blur perception information at each edge is then pooled over the entire image to obtain a final quality score by evaluating the cumulative probability of blur detection. Proposed metric is able to predict relative amount of blurriness in images. Higher metric value represent less blurred image. Results are provided to illustrate the performance of proposed metric. Performance of proposed metric is compared with existing no reference image quality metric for various publically available image databases.
本文在研究人类对不同对比度值的模糊感知的基础上,提出了一种针对模糊失真的无参考图像质量评估方法。基于人在不同对比度下的模糊感知灵敏度,提出了一个概率框架。利用该框架,估计了图像中每个边缘检测到模糊的概率。然后将每个边缘的模糊感知信息汇集到整个图像上,通过评估模糊检测的累积概率来获得最终的质量分数。该指标能够预测图像的相对模糊程度。度量值越高,图像模糊程度越低。结果说明了所提出的指标的性能。在各种公开的图像数据库中,将所提出的度量与现有的无参考图像质量度量进行了性能比较。
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引用次数: 26
A novel fuzzy c-means approach with bit plane algorithm for classification of medical images 基于位平面算法的模糊c均值医学图像分类
P. Swarnalatha, B. Tripathy
This study plays a vital role in the significance of the analysis of an image in medical image processing field, is gaining thought of many researchers in modern times. The recognition of faults present in the destroyed portion of an image is imperative for based field. In this paper, we focus at developing an approach for better classification of medical images. Our methodology is based on the concept of a novel fuzzy approach with bit plane (FCMBP) algorithm. The bit plane filtering method is used to slice the given image for classification to find out the destroyed region of the given image. The sliced image should be normalized with the old techniques and compared with the fuzzy technique for better classification and cluster of the spoiled portion. Thereby the control points have been extracted that are needed for further reconstruction of images. The performance of fuzzy approach with bit plane technique is evaluated using simulation and it is proved that our approach yields better results when compared to accessible methods.
该研究在医学图像处理领域的图像分析意义中起着至关重要的作用,受到了现代许多研究者的重视。在基于域的图像中,对图像中被破坏部分的故障进行识别是必要的。在本文中,我们着重于开发一种更好的医学图像分类方法。我们的方法是基于一种新颖的模糊方法与位平面(FCMBP)算法的概念。采用位平面滤波方法对给定图像进行切片分类,找出给定图像的破坏区域。对切片后的图像进行归一化处理,并与模糊技术进行比较,以更好地对损坏部分进行分类和聚类。从而提取出进一步重建图像所需的控制点。通过仿真对位平面模糊方法的性能进行了评价,结果表明,与可达方法相比,该方法具有更好的效果。
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引用次数: 12
Enhancement of infrared image for roof leakage detection 屋顶渗漏检测红外图像增强
P. G. Angaitkar, K. Saxena, N. Gupta, Amit Sinhal
Roof Leakage is the major problem faced in almost all buildings irrespective of the age of the building. Basically, roof leak is caused because of the different conditions and material used in construction. But most of the time these leakages are so small that we cannot see with bare eyes. That's why infrared cameras are used for detecting roof leaks. Based on the images captured by infrared cameras, edge map is drawn and that particular area is repaired. Because of the thermal nature of the infrared image, we cannot see edges perfectly which makes us to use approximation of an edge. This leads to the wastage of the material used in repairing the roof leaks which in turn increases the cost of repair also. This paper presents a technique of infrared image enhancement for roof leakage detection. This technique combines the benefits of homomorphic image processing and the additive wavelet transform. The idea behind this technique is to decompose the image into three sub bands in an additive fashion using an additive wavelet transform. The homomorphic processing is performed on each sub band, separately. The homomorphic processing transforms the image into illumination and reflectance components. Butterworth filter is used to enhance the reflection and illumination components in the image, separately. Finally, an inverse additive wavelet transform is performed on the homomorphic enhanced sub bands to get an infrared image with better visual details as well as edge map.
屋顶渗漏是几乎所有建筑物都面临的主要问题,无论建筑物的年龄如何。基本上,屋顶漏水是由于施工条件和材料的不同造成的。但大多数时候,这些泄漏非常小,我们无法用肉眼看到。这就是为什么要用红外摄像机来探测屋顶漏水。根据红外摄像机捕获的图像,绘制边缘图,并对特定区域进行修复。由于红外图像的热性质,我们不能完美地看到边缘,这使得我们使用近似边缘。这导致用于修复屋顶泄漏的材料的浪费,这反过来又增加了修复的成本。提出了一种用于屋顶渗漏检测的红外图像增强技术。该技术结合了同态图像处理和加性小波变换的优点。这种技术背后的思想是使用加性小波变换以加性的方式将图像分解成三个子带。同态处理分别在每个子带上执行。同态处理将图像转化为光照分量和反射率分量。巴特沃斯滤波分别用于增强图像中的反射和照明分量。最后,对同态增强子带进行逆加性小波变换,得到具有较好视觉细节和边缘映射的红外图像。
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引用次数: 1
Low temperature acetone sensor based on Sol-gel grown nano TiO2 thin film 基于溶胶-凝胶生长纳米TiO2薄膜的低温丙酮传感器
B. Bhowmik, K. Dutta, N. Banerjee, A. Hazra, P. Bhattacharyya
Thin film Sol-gel grown nano TiO2 based resistive sensor was developed to detect acetone at low temperature. Structural characterization were carried out using XRD, FESEM and AFM to ensure the crystalline, grain size and surface roughness of the TiO2 thin film and anatase phase TiO2 having particle size in order of 10 to 20 nm with average roughness 100nm. The thin film with catalytic Pd contact were investigated for acetone vapor sensing in the range of 150-250°C for acetone concentration 500-1500 ppm with N2 as carrier gas. The maximum response 178 % approximately was obtained at the optimum temperature of 150oC for 500 ppm acetone. The dynamic range of the sensor was also found to be quite appreciable (500-1500 ppm). The response and recovery time 42s and 44s respectively was recorded at 500 ppm at optimum temperature. The short term stability study indicated that the sensor is appreciably stable with a nominal baseline drift of ±6 %.
研制了溶胶-凝胶生长纳米TiO2薄膜电阻式低温丙酮检测传感器。采用XRD、FESEM和AFM对TiO2薄膜和锐钛矿相进行结构表征,确保TiO2薄膜和锐钛矿相的晶粒尺寸、晶粒尺寸和表面粗糙度在10 ~ 20 nm之间,平均粗糙度为100nm。研究了以氮气为载气,丙酮浓度为500 ~ 1500 ppm,在150 ~ 250℃范围内催化钯接触的丙酮气敏薄膜。当丙酮浓度为500ppm时,最适温度为150oC,响应率约为178%。传感器的动态范围也被发现是相当可观的(500-1500 ppm)。在最佳温度为500ppm时,反应时间和恢复时间分别为42s和44s。短期稳定性研究表明,传感器相当稳定,标称基线漂移为±6%。
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引用次数: 5
Robust watermarking of AES encrypted images for DRM systems DRM系统中AES加密图像的鲁棒水印
V. Chandra, Prasad S Maheswari
Digital image capturing, processing and distribution has showed a remarkable growth over recent years. This media content is sometimes distributed in encrypted format and watermarking of these media items for proof of ownership, media authentication needs to be carried out in encrypted domain to improve image security. Therefore it is sometimes necessary to embed watermark in encrypted media items for ownership declaration or copyright management purposes. DRM system is one such example where there is a challenge to watermark these encrypted data as the encryption would have randomized the incoming data. In this paper, a block cipher called AES-128 bit key encryption algorithm and DCT combined with DWT based watermarking algorithm to watermark the encrypted image were proposed which increases robustness of the watermark. These method embeds the binary watermark in encrypted image and decryption is done after extraction of watermark.
近年来,数字图像采集、处理和分发呈现出显著的增长。这些媒体内容有时以加密格式分发,并对这些媒体项目进行水印以证明所有权,需要在加密域中进行媒体认证以提高图像安全性。因此,有时需要在加密媒体项目中嵌入水印以进行所有权声明或版权管理。DRM系统就是这样一个例子,由于加密会随机化传入的数据,因此对这些加密数据加水印是一个挑战。本文提出了一种分组密码AES-128位密钥加密算法和DCT结合DWT的水印算法对加密图像进行水印处理,提高了水印的鲁棒性。该方法将二值水印嵌入到加密图像中,提取水印后进行解密。
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引用次数: 12
A modified preamble structure based carrier frequency offset (CFO) and phase noise compensation in an OFDM system OFDM系统中基于载波频偏和相位噪声补偿的改进前导结构
P. Malarvezhi, R. Kumar
The Systems using Orthogonal Frequency Division Multiplexing (OFDM) suffer with carrier frequency offset (CFO) and phase noise which results in inter carrier interference (ICI) due to which there will be large performance degradation. The impairments like CFO and phase noise are caused due to mismatch of carrier frequency at the transmitter to local oscillator frequency at the receiver, multipath and Doppler shift. This paper presents a modified preamble structure based approach for CFO and phase noise compensation in an OFDM systems which mitigate the effect of inter carrier interference and its equivalent energy loss. Theoretical analysis and simulation results substantiate the importance and advantages of proposed CFO and phase noise compensation approach. This proposed method provides a considerable signal to noise ratio gain on bit error rate performance.
正交频分复用(OFDM)系统存在载波频偏(CFO)和相位噪声,载波频偏和相位噪声会导致载波间干扰(ICI),从而导致系统性能下降。由于发射机的载波频率与接收机的本振频率不匹配、多径频移和多普勒频移等原因,会造成CFO和相位噪声等损害。本文提出了一种改进的基于前导结构的OFDM系统CFO和相位噪声补偿方法,以减轻载波间干扰及其等效能量损失的影响。理论分析和仿真结果验证了所提出的CFO和相位噪声补偿方法的重要性和优越性。该方法在误码率性能上提供了可观的信噪比增益。
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引用次数: 3
Modified distributed energy-efficient cluster for heterogeneous wireless sensor networks 异构无线传感器网络的改进分布式节能集群
C. Divya, N. Krishnan, P. Krishnapriya
A wireless sensor network consists of inexpensive power constrained sensors which collect data from the environment and transmit them towards the base station in a cooperative way. Reducing the energy and extending the wireless sensor networks lifetime, imposes a great confront. In this paper, the distributed Energy efficient clustering protocol was used to calculate the energy efficiency of the network. Existing DEEC was modified and developed a new protocol called MDEEC. MDEEC allows more number of data to be sent from the base station to the cluster head in a particular time interval. Compared to DEEC, MDEEC performs less delay for sending the data, thereby increasing the energy efficiency of the heterogeneous network.
无线传感器网络由廉价的功率受限的传感器组成,这些传感器从环境中收集数据并以协作方式向基站传输数据。如何降低无线传感器网络的能量,延长无线传感器网络的使用寿命,是一个巨大的挑战。本文采用分布式能效聚类协议计算网络的能效。对现有的DEEC进行了修改,并开发了一种称为MDEEC的新协议。MDEEC允许在特定的时间间隔内从基站向集群头发送更多数量的数据。与DEEC相比,MDEEC发送数据的延迟更小,从而提高了异构网络的能源效率。
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引用次数: 3
OBCS: High performance burst transmission for achieving energy consumption OBCS:高性能突发传输,实现节能
R. Renuka, V. Kavitha
Optical networks are a logical choice to meet the future communication demands, with optical fiber links offering huge bandwidth. OBS avoids the use of optical buffering and optical processing logic unlike in OPS but still achieves switching in optical domain. The OBS framework has been widely used in past years, for recent work use Optical Burst Chain switching (OBCS) to achieve high performance. Here switching unit is burst chain it consist of non-periodic bursts in one wavelength. We present extensive simulation result for throughput, delay and energy to demonstrate its superior performance over OBS networks.
光网络是满足未来通信需求的必然选择,光纤链路提供了巨大的带宽。OBS不像OPS那样使用光缓冲和光处理逻辑,但仍然实现了光域的交换。OBS框架在过去的几年里得到了广泛的应用,最近的工作使用光突发链交换(OBCS)来实现高性能。这里的开关单元是由一个波长内的非周期性突发组成的突发链。我们给出了大量的吞吐量、延迟和能量的仿真结果,以证明它在OBS网络上的优越性能。
{"title":"OBCS: High performance burst transmission for achieving energy consumption","authors":"R. Renuka, V. Kavitha","doi":"10.1109/ICE-CCN.2013.6528533","DOIUrl":"https://doi.org/10.1109/ICE-CCN.2013.6528533","url":null,"abstract":"Optical networks are a logical choice to meet the future communication demands, with optical fiber links offering huge bandwidth. OBS avoids the use of optical buffering and optical processing logic unlike in OPS but still achieves switching in optical domain. The OBS framework has been widely used in past years, for recent work use Optical Burst Chain switching (OBCS) to achieve high performance. Here switching unit is burst chain it consist of non-periodic bursts in one wavelength. We present extensive simulation result for throughput, delay and energy to demonstrate its superior performance over OBS networks.","PeriodicalId":286830,"journal":{"name":"2013 IEEE International Conference ON Emerging Trends in Computing, Communication and Nanotechnology (ICECCN)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128332796","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
Pre-processed back propagation neural networks for CDMA interference cancellation 用于CDMA干扰消除的预处理反向传播神经网络
B. Geevarghese, J. Thomas, M. Anil, A. Francis
This paper attempts to show the effects of pre-processing in bit error rate of neural network interference cancellation in spread spectrum receivers. Multiple access interference (MAI) which is one of the primary issues in CDMA multiuser detection is combated by interference cancellers. Feed-Forward Neural Networks with back propagation is used for interference cancellers. The works shows that pre-processing can bring adequate improvement in bit error rate as well as complexity.
本文试图说明预处理对扩频接收机中神经网络干扰消除误码率的影响。多址干扰是CDMA多用户检测中的主要问题之一。采用反向传播的前馈神经网络进行干扰消除。研究表明,预处理可以有效地降低误码率和复杂度。
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引用次数: 1
Mitigation of jamming attacks in wireless networks 无线网络中干扰攻击的缓解
R. Dorus, P. Vinoth
Wireless networks, intentional interference can be used as a launch pad for mounting Denial-of-Service in the network. Intentional interference (jamming) attacks can be performed by absorption of packets and discard them or drop the packets. Intrusion Detection System can be used to mitigate and prevent the jamming attack and the addition of cryptographic primitive used to preserve integrity of the packets. This paper proposes a mechanism for preventing jamming attacks on wireless networks-examine the detection efficiency of jamming attack and communication overhead of the wireless network using proactive and reactive protocols. RSA algorithm is used for providing data packets integrity information during wireless transmission. Through simulation and performance analysis, the implemented prevention mechanism and the integrity preservation provides higher packet delivery ratio in proactive routing protocol (OLSR) than reactive routing protocol (AODV).
在无线网络中,故意干扰可以作为在网络中安装拒绝服务的发射台。故意干扰攻击可以通过吸收数据包并丢弃或丢弃数据包来实现。入侵检测系统可以减轻和防止干扰攻击,并增加密码原语以保持数据包的完整性。本文提出了一种防止无线网络干扰攻击的机制,采用主动协议和被动协议考察了无线网络干扰攻击的检测效率和通信开销。RSA算法用于在无线传输过程中提供数据包的完整性信息。通过仿真和性能分析,所实现的预防机制和完整性保护在主动路由协议(OLSR)中比在被动路由协议(AODV)中提供了更高的分组分发率。
{"title":"Mitigation of jamming attacks in wireless networks","authors":"R. Dorus, P. Vinoth","doi":"10.1109/ICE-CCN.2013.6528486","DOIUrl":"https://doi.org/10.1109/ICE-CCN.2013.6528486","url":null,"abstract":"Wireless networks, intentional interference can be used as a launch pad for mounting Denial-of-Service in the network. Intentional interference (jamming) attacks can be performed by absorption of packets and discard them or drop the packets. Intrusion Detection System can be used to mitigate and prevent the jamming attack and the addition of cryptographic primitive used to preserve integrity of the packets. This paper proposes a mechanism for preventing jamming attacks on wireless networks-examine the detection efficiency of jamming attack and communication overhead of the wireless network using proactive and reactive protocols. RSA algorithm is used for providing data packets integrity information during wireless transmission. Through simulation and performance analysis, the implemented prevention mechanism and the integrity preservation provides higher packet delivery ratio in proactive routing protocol (OLSR) than reactive routing protocol (AODV).","PeriodicalId":286830,"journal":{"name":"2013 IEEE International Conference ON Emerging Trends in Computing, Communication and Nanotechnology (ICECCN)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122047682","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
期刊
2013 IEEE International Conference ON Emerging Trends in Computing, Communication and Nanotechnology (ICECCN)
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