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2011 International Conference on Multimedia and Signal Processing最新文献

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A Novel Track-before-Detect Algorithm for Small Dim Infrared Target 一种新的弱小红外目标检测前跟踪算法
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.27
Bin Wu, Hao Yan
{"title":"A Novel Track-before-Detect Algorithm for Small Dim Infrared Target","authors":"Bin Wu, Hao Yan","doi":"10.1109/CMSP.2011.27","DOIUrl":"https://doi.org/10.1109/CMSP.2011.27","url":null,"abstract":"A novel track-before-detect filtering algorithm is proposed for small dim infrared targets with low signal-to-noise ratio under complex backgrounds. A new particle filter called Quasi-Monte Carlo sampling based Gaussian particle filter(QMC-GPF) is developed to estimate on-line the standard kinematic parameters of the target, including position and velocity, as well as the amplitude of the target. The convergence characteristic of the covariance matrix of the posterior densities propagated in the QMC-GPF is used to determine whether it is the true target. The algorithm is tested with a synthetic target in IR image sequences, and it is proved that the algorithm is capable of performing sufficiently well for dim target of  SNR¨R1dB.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"61 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":"130340864","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
Implementation of SD Card Music Player Using Altera DE2-70 用Altera DE2-70实现SD卡音乐播放器
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.118
Liang Hong-wei, Li Jian-ai, Kan Ling-ling
{"title":"Implementation of SD Card Music Player Using Altera DE2-70","authors":"Liang Hong-wei, Li Jian-ai, Kan Ling-ling","doi":"10.1109/CMSP.2011.118","DOIUrl":"https://doi.org/10.1109/CMSP.2011.118","url":null,"abstract":"This article is aiming at implementing a SD Card Music Player using the DE2-70. Implementation of SD Card Music Player is done by first instantiating a Nios II system in the board. Nios II system is built around the altera's Nios II processor using the SOPC builder tool of the quartus II. The SOPC builder tool generates the HDL code of the defined system. The developed code can be configured in the FPGA board to instantiate the system. After implementing the Nios II system, an application program can be run in the system to implement the SD Card Music Player.","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":"132608688","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
Removing Labeled Text in an Image Based on an Extended Filter in Gabor Space 基于Gabor空间扩展滤波器的图像标记文本去除
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.78
J. Yang, Shi-jiao Zhu
{"title":"Removing Labeled Text in an Image Based on an Extended Filter in Gabor Space","authors":"J. Yang, Shi-jiao Zhu","doi":"10.1109/CMSP.2011.78","DOIUrl":"https://doi.org/10.1109/CMSP.2011.78","url":null,"abstract":"In this paper, a blindness method using an extended filter in Gabor space for removing the text labeled by users in an image is proposed. In order to eliminate the text region, firstly, the features of an image are calculated in Gabor space, and then Gabor filter with different directions and frequencies are applied to the images. Since Gabor filter allows us to obtain channels in different scales and angles, and the relationship of different channels is a core factor which used in calculating coefficients to find possible labeled area because that in contrast to the original image, these channels in Gabor space can present the characteristics of text regions well, so the presented algorithm can remove the text area effectively. To demonstrate the validity and efficiency of the method, the experiments on the real-world images from a large number of webpage demonstrate are presented in the last.","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":"125599949","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
Two-Dimensional Neighborhood Structure Preserving Projection 二维邻域结构保持投影
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.40
Li Yiying, Gao Quanxue, Liu Yamin, L. Jingjing
{"title":"Two-Dimensional Neighborhood Structure Preserving Projection","authors":"Li Yiying, Gao Quanxue, Liu Yamin, L. Jingjing","doi":"10.1109/CMSP.2011.40","DOIUrl":"https://doi.org/10.1109/CMSP.2011.40","url":null,"abstract":"This paper presents a novel manifold learning method, called two-dimensional neighborhood structure preserving projection (2DNSPP) for dimensionality reduction. 2DNSPP employs two adjacency graphs, namely diversity graph and similarity graph, with a vertex set and two affinity matrices. The affinity matrix of diversity graph characterizes the spatial diversity structure among nearby data, while affinity matrix of similarity graph characterizes the spatial similarity structure among nearby data. A concise feature extraction is then raised via combining the diversity and similarity among nearby data. Experiment results on the UMIST database indicate the efficiency of the proposed method.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"356 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":"133643139","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 Speech Denoising Method Based on Improved EMD 基于改进EMD的语音去噪方法
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.149
Zhang Jun-chang, Z. Li
{"title":"A Speech Denoising Method Based on Improved EMD","authors":"Zhang Jun-chang, Z. Li","doi":"10.1109/CMSP.2011.149","DOIUrl":"https://doi.org/10.1109/CMSP.2011.149","url":null,"abstract":"Speech signal is corrupted inevitably by noise which results in speech distortion during generation, transmission and reception process. In this paper, empirical mode decomposition (EMD) for non-stationary and nonlinear signal analysis is applied to speech de-noising. Moreover, focusing on the problems of envelopes fitting and interpolation points selection in conventional EMD, an improved EMD is proposed, which uses cubic hermite interpolation instead of cubic spline for signal envelopes fitting, and doubly-iterative sifting method instead of local extrema for interpolation points selection. Thus, the errors of algorithm could be reduced, and overshoots or undershoots be avoided. Simulation shows that the proposed method decreases speech distortion and increases output signal to noise ratio (SNR), compared with speech denoising based on wavelet and conventional EMD.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"28 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":"123910460","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
A Geometric Point Sets Pattern Matching by Motion Estimation 基于运动估计的几何点集模式匹配
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.168
Zongqing Lu, Wang Zhao, Haiguang Guo, Cheng Jun
{"title":"A Geometric Point Sets Pattern Matching by Motion Estimation","authors":"Zongqing Lu, Wang Zhao, Haiguang Guo, Cheng Jun","doi":"10.1109/CMSP.2011.168","DOIUrl":"https://doi.org/10.1109/CMSP.2011.168","url":null,"abstract":"We introduce a novel algorithm for solving the subpixel geometric point sets matching problem based on motion estimation. The crucial idea is to build the distance map images of discrete point sets, and use the optical flow scheme to obtain the final accurate offset. The original point sets matching problem is replaced by an image matching problem, which provides more data information and improve the matching stability.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"14 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":"121337907","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
Application of Multimedia in Teaching of Steel Structure 多媒体在钢结构教学中的应用
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.114
L. Xiaoyu
{"title":"Application of Multimedia in Teaching of Steel Structure","authors":"L. Xiaoyu","doi":"10.1109/CMSP.2011.114","DOIUrl":"https://doi.org/10.1109/CMSP.2011.114","url":null,"abstract":"This article discussed the necessity of applications of multimedia in teaching of the course of steel structure. It also described the advantages of multimedia teaching methods through the aspects of the intuitive, dynamics, interactivity, capacity, recurrence and simulation. It also mentioned the important role of multimedia teaching mothers in helping students to think visually and to understand the concepts of mechanics. In addition, it pointed out the inadequacy of multimedia teaching and proposed the improvement measures for the multimedia courseware. By comparing multimedia teaching methods with traditional methods, the effects of teaching were analyzed from two aspects. One was the extent for the students to understand the professional subjects, and the other was the time required for teacher to introduce the subjects in the course. The results showed that teaching by use of multimedia technology could obviously improve the extent of understanding for students and considerably reduce the time required for teachers.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"9 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":"128332360","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 Hybrid Median Filter for Enhancing Dim Small Point Targets and Its Fast Implementation 一种用于弱小点目标增强的混合中值滤波器及其快速实现
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.55
Qingyun Yang
{"title":"A Hybrid Median Filter for Enhancing Dim Small Point Targets and Its Fast Implementation","authors":"Qingyun Yang","doi":"10.1109/CMSP.2011.55","DOIUrl":"https://doi.org/10.1109/CMSP.2011.55","url":null,"abstract":"Weak stars and middle altitude orbit satellites or high altitude orbit satellites are presented as dim point targets in images of astronomical observation. They have low intensity and occupy few pixels in image. In most situations, the background of sky is always ununiform and there exists pulse noises. Thus results in targets submerging in background noises and low signal noise ratio $(SNR)$. Median filter is an effective method for removing pulse noise. But it can blur image after modifying gray of non-noise pixels when image has low SNR. A hybrid median filter algorithm is proposed to process low SNR dim point targets image. The newly proposed method can suppress the pulse noises, also can increase target $SNR$ and does not add extra fake targets. The time complexity of median filter is $O(N^2)$($N$ is the widow size) and is difficult to implement in hardware. For quasi real time application, a fast implementation of our hybrid median filter is proposed to reduce the time complexity to $O(N)$. Experimental results show that the newly proposed algorithm is superior to ordinary median filter and fast median filter by comparing visual effect and performance.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"58 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":"125827173","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
Chaos Characteristics Analysis about Transient Signals of FH Radio with PLL Synthesizer 用锁相环合成器分析跳频无线电瞬态信号的混沌特性
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.94
Chunyun Song
{"title":"Chaos Characteristics Analysis about Transient Signals of FH Radio with PLL Synthesizer","authors":"Chunyun Song","doi":"10.1109/CMSP.2011.94","DOIUrl":"https://doi.org/10.1109/CMSP.2011.94","url":null,"abstract":"Chaos characteristic analysis of the phase-locked loop (PLL) synthesizer has been made in this paper based on the phase model of it, and we conclude the state equation of this model and the condition when the system becomes chaos. Because the parameters of the PLL synthesizer will be changed when the FH radio switch the frequency, the system may turn to be chaos caused by the parameters of it meet the very condition. Some analysis about the transient signals of the frequency-hopping (FH) radio with PLL synthesizer is made in this paper. The fractal dimension of the transient signals is estimated by Cao's method, and the maximal Lyapunov exponent of these signals is positive. The unique double-ring attractor of them is also reproduced through the phase space reconstruction. All the result approve that the output of the FH radio is chaotic when the frequency changing.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"61 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":"114812882","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
Research on Auditory Display Technology Based on Visual Information 基于视觉信息的听觉显示技术研究
2011 International Conference on Multimedia and Signal Processing Pub Date : 2011-05-14 DOI: 10.1109/CMSP.2011.110
Xianchun Meng, Shijie Dai, Yuhong Liu, Biao Xiang, Zhidong Liu, Zhi Lv
{"title":"Research on Auditory Display Technology Based on Visual Information","authors":"Xianchun Meng, Shijie Dai, Yuhong Liu, Biao Xiang, Zhidong Liu, Zhi Lv","doi":"10.1109/CMSP.2011.110","DOIUrl":"https://doi.org/10.1109/CMSP.2011.110","url":null,"abstract":"A new recognizing obstacle method based on the visual information with the different voice was proposed in this paper, which overcame the flaw of the former ETA system to be unable to distinguish the outside obstacle concrete information. This method extraction goal object's color and the shape characteristic, with the established database retrieval math, distinguishes the goal object and then sends out the corresponding pronunciation. After a period of time's training, the blind person can skilled listen to the sound to know the obstacle information.","PeriodicalId":309902,"journal":{"name":"2011 International Conference on Multimedia and Signal Processing","volume":"14 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":"121915326","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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