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2011 International Conference on Multimedia and Signal Processing最新文献

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A Hybrid PAPR Reduction Technique Using FFT/IFFT Based Tone Reservation and SLM with No Side Information 基于FFT/IFFT的音调保留和无侧信息SLM的混合PAPR还原技术
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.163
Samuel Oru Besong, Xiaoyou Yu, Xiaochun Wang
{"title":"A Hybrid PAPR Reduction Technique Using FFT/IFFT Based Tone Reservation and SLM with No Side Information","authors":"Samuel Oru Besong, Xiaoyou Yu, Xiaochun Wang","doi":"10.1109/CMSP.2011.163","DOIUrl":"https://doi.org/10.1109/CMSP.2011.163","url":null,"abstract":"Orthogonal Frequency Division Multiplexing hasbeen the preferred candidate for broadband wirelesscommunications over the years. However, it suffers from theproblem of high Peak-to-Average Power Ratios (PAPR) whichcauses inefficient use of the High Power Amplifier. In thispaper, we propose a hybrid PAPR reduction technique basedon FFT/IFFT tone reservation and the Selected MappingTechnique (SLM) with no side information. In this techniquewe shall use fewer reserve tones (about 2% of the bandwidth)than the original FFT/IFFT based tone reservation techniqueand achieve an outstanding PAPR reduction of about 6dB, atthe cost of complexity in the SLM technique.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128497883","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
IPv6 Based Intelligent Surveillance System 基于IPv6的智能监控系统
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.119
Yu Jiang, Ke-bin Jia
{"title":"IPv6 Based Intelligent Surveillance System","authors":"Yu Jiang, Ke-bin Jia","doi":"10.1109/CMSP.2011.119","DOIUrl":"https://doi.org/10.1109/CMSP.2011.119","url":null,"abstract":"Surveillance systems are very effective and important for security management, besides IP (Internet protocol)-based surveillance system is widely used now. However, as the development of the Internet, the scarcity of IP address becomes a serious problem for the massive application of IP-based surveillance system. With the help of IPv6 network, RFID (Radio Frequency Identification) and the multimedia technology, an IPv6-based intelligent surveillance system is given in the paper to overcome the problem as well as giving a new way for the inspecting work. The system with the multi-functions of video surveillance, entrance guard, localization and SMS (Short Message Services) alarm has been successfully deployed in the unattended computer room in China Uniform for real-time surveillance and it has been proved stable and accurate.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128573129","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
A Compressed Sensing Approach for IR-UWB Communication 红外-超宽带通信的压缩感知方法
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.91
H. Yao, Shaohua Wu, Qinyu Zhang, Ye Wang
{"title":"A Compressed Sensing Approach for IR-UWB Communication","authors":"H. Yao, Shaohua Wu, Qinyu Zhang, Ye Wang","doi":"10.1109/CMSP.2011.91","DOIUrl":"https://doi.org/10.1109/CMSP.2011.91","url":null,"abstract":"The emerging theory of compressed sensing (CS) not only enables the reconstruction of sparse signals from a small set of random measurements, but also provides a universal signal demodulation approach at sub-Nyquist sampling rate. Compressed signal demodulation is particularly suitable for impulse ratio ultra-wideband (IR-UWB) communications where Nyquist sampling is a formidable challenge. In this paper, aiming at the signaling scheme that the pilot symbols are to provide side information about the channels and data symbols adopt BPM and M-PPM joint modulation, to realize 100Mbps UWB communication system under compressed sensing framework. We introduce the correlation matrix for UWB channel estimation, and propose two compressed demodulation methods: reconstruction mapping (RM) method and compressed signal classification (CSC). Simulation results show that the introduction of correlation matrix, improves channel estimation performance. The two demodulation methods also have a good performance in simulation, and provide a new idea for UWB signal demodulation.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134138130","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
Feature Based Stitching of a Clear/Blurred Image Pair 基于特征的清晰/模糊图像对拼接
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.36
Xianyong Fang
{"title":"Feature Based Stitching of a Clear/Blurred Image Pair","authors":"Xianyong Fang","doi":"10.1109/CMSP.2011.36","DOIUrl":"https://doi.org/10.1109/CMSP.2011.36","url":null,"abstract":"Clear image stitching becomes mature now, but how to stitch blurred images with clear ones is still tough, mainly because of the ill-posed image deblurring. Existing deblurring methods assume spatial-invarint blur kernel, pixelwise constant blur kernel or planar camera motion. But these assumptions are difficult to hold in the real blurred image which is a spatial-variant blurred image by 3D camera motion. To overcome such limits for stitching blurred image, in this paper, we present a new feature based framework of stitching a clear/blurred image pair. It is inspired by recently proposed projetive warping models depicting the camera movement embedded in the capturing process of the blurred image. Our main contribution is a feature based algorithm for kernel estimation using the overlapped clear/blurred image pair. Experimental results demonstrate the effectiveness of the proposed stitching method.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129386175","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
Contourlet-Based Feature Extraction with LPP for Face Recognition 基于contourlet的LPP人脸识别特征提取
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.31
Yan-qi Tan, Yaying Zhao, Xiaohu Ma
{"title":"Contourlet-Based Feature Extraction with LPP for Face Recognition","authors":"Yan-qi Tan, Yaying Zhao, Xiaohu Ma","doi":"10.1109/CMSP.2011.31","DOIUrl":"https://doi.org/10.1109/CMSP.2011.31","url":null,"abstract":"Locality preserving projection (LPP) is a successful method in face recognition for feature extraction. However, the recognition efficiency of LPP technique is often degraded by the very high dimensional nature of the image space. It is difficult to calculate the bases to represent the original facial images. So the algorithm describing image in vector form is often applied in data after dimension reduction by PCA which result in the algorithm sensitive to how to estimate the intrinsic dimensionality of the nonlinear face manifold in the PCA preprocessing step. A novel approach is presented in this paper to avoid the difficulty. We introduce the application of contourlet transform in conjunction with LPP to overcome these limitations. Experimental results on the ORL, Yale, YaleB, CMU PIE face database show the effectiveness of the contourlet-based locality preserving projection (CLPP) method.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132842395","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
On Virtual Public Sphere and Network Citizen Participation 论虚拟公共领域与网络公民参与
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.157
Hu Jinrong, Zhou En-yi
{"title":"On Virtual Public Sphere and Network Citizen Participation","authors":"Hu Jinrong, Zhou En-yi","doi":"10.1109/CMSP.2011.157","DOIUrl":"https://doi.org/10.1109/CMSP.2011.157","url":null,"abstract":"This paper focuses on the two concepts of virtual public sphere and network citizen participation, and the relationship between them. As an adjusting 'third domain' between state and society, the public sphere is an important research for Chinese and foreign scholars in recent years. Habermas' public sphere theory is based on the real world, while the network communication, as a virtual public sphere, has promoted the transformation of Habermas' public sphere. The virtual public sphere has publicized the social life of the public. Netizens express opinions about public affairs through forums and other virtual public sphere, to form public opinion, in order to affect the government policy decisions. This phenomenon coincides with the theory of policy networks which is an emerging pattern. Network citizen participation has several advantages of letting people enjoy the full democratic rights and promoting citizen participation enthusiasm; Meanwhile, network citizen participation has some problems: the 'digital divide', the lack of legal way to participate, the lack of specific participation approaches in process, the tangle between rational and non-rational network citizen participation, the loose issue networks leading to the disorder and transience of the participation. In this paper, the author proposed some solutions to the problem of citizen participation in virtual public sphere, wishing to develop political and social democracy or means in China.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133104391","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
Image Inpainting Using Multiscale Salient Structure Propagation 基于多尺度凸点结构传播的图像补图
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.48
Cheng-Shian Lin, Jin-Jang Leou
{"title":"Image Inpainting Using Multiscale Salient Structure Propagation","authors":"Cheng-Shian Lin, Jin-Jang Leou","doi":"10.1109/CMSP.2011.48","DOIUrl":"https://doi.org/10.1109/CMSP.2011.48","url":null,"abstract":"In this study, a new image inpainting approach using multiscale salient structure propagation is proposed. The proposed approach consists of four stages, namely, (1) detection of salient structure(s), (2) inpainting of salient structure(s), (3) inpainting of surrounding areas of salient structure(s) by modified ant colony optimization (ACO), and (4) inpainting of remaining missing regions. Based on the experimental results obtained in this study, as compared with four comparison approaches, the proposed approach provides the better image inpainting results.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"11 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133170695","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
Robust Weed Recognition Using Blur Moment Invariants 基于模糊矩不变性的鲁棒杂草识别
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.38
Zhao Peng
{"title":"Robust Weed Recognition Using Blur Moment Invariants","authors":"Zhao Peng","doi":"10.1109/CMSP.2011.38","DOIUrl":"https://doi.org/10.1109/CMSP.2011.38","url":null,"abstract":"Image motion blur and defocus blur often occur when there is a relative motion between the imaging camera and the detected object. These two blurs will degrade the image quality and will also decrease the subsequent pattern recognition accuracy. In this paper, we propose a robust weed recognition scheme using the low quality color weed images with the above-mentioned image blurs. The proposed scheme consists of three steps. First, image matte is used to segment the soil and the plant. Second, the image-moment-based blur invariant features are calculated. Third, weed recognition is performed by using the computed Euclidean distance based on the moment invariants. We have experimentally proved that the effective use of image blur information improves the recognition accuracy of camera-captured weeds.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133335972","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
A Matching Scheme Based on Proper Vector 一种基于固有向量的匹配方案
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.65
C. Fan
{"title":"A Matching Scheme Based on Proper Vector","authors":"C. Fan","doi":"10.1109/CMSP.2011.65","DOIUrl":"https://doi.org/10.1109/CMSP.2011.65","url":null,"abstract":"To speed-up transfer rate, reduce communication bandwidth and storage space, image compression is needed. Owing to the feature of fractal compression, its retrieval for similar images is difficulty. A method is proposed to evaluate the similarity of images compressed. The method allows for comparing loss-compressed images and based upon the fractal framework of the iterated function systems (IFS) widely used for image compression. The image index is represented through a vector of numeric features, corresponding to contractive functions (CF) of the IFS framework. Because a compression code contains mapping information between similar regions in the same image, this mapping information can be treated as vectors. Also, it is important to generate the representative vectors using the mapping vectors. This representative vector can describes the features of the images, so the similarity between images is directly calculable from representative vectors. This similarity is applicable to image retrieval, and the scheme will be explained and demonstrated experimentally on its efficiency in this paper.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103451","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
Sparse Signal Recovery Based on lq(0 < q = 1) Minimization 基于lq(0 &#60)的稀疏信号恢复q = 1)最小化
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.137
Jianjun Wang, Chun-Yun Yang, Baili Chen
{"title":"Sparse Signal Recovery Based on lq(0 &#60; q = 1) Minimization","authors":"Jianjun Wang, Chun-Yun Yang, Baili Chen","doi":"10.1109/CMSP.2011.137","DOIUrl":"https://doi.org/10.1109/CMSP.2011.137","url":null,"abstract":"In this paper, we present a concise analysis of the constrained lq(0 &#60; q = 1)- minimization method for sparse signal recovery. The obtained results are helpful in understanding the recovery capability of lq-minimization, and meaningful in the development of compressed sensing technology.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123968018","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
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