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2011 4th International Congress on Image and Signal Processing最新文献

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Fifth type of comb FIR filters 第五种梳状FIR滤波器
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100569
P. Zahradnik, B. Simák, M. Vlcek
{"title":"Fifth type of comb FIR filters","authors":"P. Zahradnik, B. Simák, M. Vlcek","doi":"10.1109/CISP.2011.6100569","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100569","url":null,"abstract":"An extension of the design of digital equiripple comb FIR filters is presented. We introduce the fifth type of comb FIR filter which complements the existing four standard types. The design runs from the filter specifications through the degree formula to the impulse response coefficients, which are evaluated by an efficient recursive algorithm. One example is included.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130713713","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
Architectures for 3780 point FFT processor 3780点FFT处理器架构
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100733
He Jing, Li Tianyue, Xu Xinyu
{"title":"Architectures for 3780 point FFT processor","authors":"He Jing, Li Tianyue, Xu Xinyu","doi":"10.1109/CISP.2011.6100733","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100733","url":null,"abstract":"3780 point FFT processor is the key component in DTMB receiver. It is generally implemented by decomposing 3780 point to small size, which can be implemented with WFTA and PFA in pipelined architecture. Several architectures were proposed and patented, the differences of the architectures lie in the way 3780 are decomposed and the processing order of small sized WFTA module. In this paper, the architectures for 3780 point FFT processor are analyzed, and the architectures with different processing order and internal wordlength are modeled with Matlab and simulated, the simulation results shows that processing larger sized WFTA at first stages can achieve better performance, and the varied decomposition and processing order can achieve varied performance in terms of SQNR and hardware cost.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130718794","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 new air target detection method based on unconventional application of satellite signals 基于卫星信号非常规应用的空中目标探测新方法
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100674
Wei Qu, Xin Jia, Yanhong Wu, Cong Wang
{"title":"A new air target detection method based on unconventional application of satellite signals","authors":"Wei Qu, Xin Jia, Yanhong Wu, Cong Wang","doi":"10.1109/CISP.2011.6100674","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100674","url":null,"abstract":"Upon the plenitude study of the characteristic of target information acquisition and information processing of bistatic radar, this paper puts forward a kind of target information acquisition method using the receivers' power variation of direct satellite signal and analyses its fundamental principle. The present situation of passive detection radar based on outer radiation is briefly introduced. The fundamental principle of this method was analyzed and simulations were executed in this paper. All simulation results proved that the method is feasible and can be greatly used in the coarse location of the target with larger quantities of less expensive receiving units on the ground. And a series of experiments have been done to verify this method.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"76 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130938569","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
No reward could be similar to penalty: Evidence from feedback negativity and P300 没有奖励可能类似于惩罚:来自消极反馈和P300的证据
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100667
Yu-xia Huang, Yue-jia Luo, K. Ting, C. Chan
{"title":"No reward could be similar to penalty: Evidence from feedback negativity and P300","authors":"Yu-xia Huang, Yue-jia Luo, K. Ting, C. Chan","doi":"10.1109/CISP.2011.6100667","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100667","url":null,"abstract":"Previous studies have shown that two components of event-related potentials, the feedback negativity (FN) and P300, respond to feedback information of reward and penalty. The present study investigated the response of FN and P300 to neutral (neither reward nor penalty) outcome in an EEG level control task. Reward, penalty and neutral feedbacks were presented to participants randomly. The results showed that FN and P300 responded to the outcome information in a similar way. Both of them differed between reward condition and non-reward condition (penalty as well as neutral). It was noteworthy that neutral feedback elicited similar FN and P300 as penalty in amplitude, latency and scalp topography. This result may support an emotional-motivational mechanism that underlies a rapid but coarse early evaluation of the outcome information.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257097","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
LLT-EMD algorithm based on wavelet packets 基于小波包的LLT-EMD算法
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100683
Yonghong Zhang, Xueming Xu
{"title":"LLT-EMD algorithm based on wavelet packets","authors":"Yonghong Zhang, Xueming Xu","doi":"10.1109/CISP.2011.6100683","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100683","url":null,"abstract":"Huang's Empirical Mode Decomposition (EMD) algorithm sometimes may cause mode mixing because of multi-band included in Intrinsic Mode Function (IMF) components, in addition, the EMD always has illusive components due to the shortcoming of the algorithm itself. This paper puts forward a LLT-EMD algorithm based on wavelet packet which doing pretreatment for signal by wavelet-packet transform firstly, then applying the EMD, finally using Logarithm Likelihood Testing (LLT) method to identify the illusive components. This method to some extent solves the problems of the mode mixing and the illusive component. Simulation and experimental results present the high performance of the proposed method.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132951110","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
CT and MR multimodal registration guided by weighted gradient images 加权梯度图像引导下的CT与MR多模态配准
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100271
Shiwei Yu, Xiaoyun Liu, Wufan Chen
{"title":"CT and MR multimodal registration guided by weighted gradient images","authors":"Shiwei Yu, Xiaoyun Liu, Wufan Chen","doi":"10.1109/CISP.2011.6100271","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100271","url":null,"abstract":"An effective registration algorithm for computerized tomography (CT) and magnetic resonance (MR) images is introduced in this paper. This algorithm constructs a guided layer in a same modal space for the image pair through the introduction of weighted gradient images to navigate the registration behaviors of the original reference image and the moved image. Subsequently, a fine registration is implemented to get a final aligned result. As a result, both the convergence in optimization and the accuracy in registration can be guaranteed. The normalized mutual information has been adopted as the similarity measure and the hierarchical B-spline grid is used to define the freeform deformation field. Numerous contrastive implements in image registration have indicated that the proposed algorithm is able to guarantee the convergence in the process of iterations and lead to higher accuracy with more robust property to noise.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"60 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133511722","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
Generation of pseudonoise sequences using the cascaded Bitfilter 使用级联比特滤波器生成伪噪声序列
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100721
Anjin Peng
{"title":"Generation of pseudonoise sequences using the cascaded Bitfilter","authors":"Anjin Peng","doi":"10.1109/CISP.2011.6100721","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100721","url":null,"abstract":"This paper presents a method for generation of pseudonoise(PN) sequences using cascaded Bitfilter. According to the structure of the cascaded Bitfilter, the circuit, generating the PN-sequences, can be implemented in an efficient way. The design examples are given to demonstrate the method.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133541535","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
3-D video quality enhancement by non-linear depth map configuration based on moving objects 基于运动物体的非线性深度图配置增强三维视频质量
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100774
Tae-Woo Kim, Jitae Shin
{"title":"3-D video quality enhancement by non-linear depth map configuration based on moving objects","authors":"Tae-Woo Kim, Jitae Shin","doi":"10.1109/CISP.2011.6100774","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100774","url":null,"abstract":"This paper proposes a new scheme of non-linear depth map configuration based on moving objects for multi-view depth estimation in order to enhance 3-D video quality. Generally depth map has totally 256 depth levels as 8-bit intensity. The total range of depth map is divided into five groups with same space. By keeping track of position of moving objects in depth map, the group with higher movement is dynamically chosen. And the depth intensity intervals in the selected group are divided more densely. Consequently, this group has more depth levels to be represented in the same range of depth map and good visual effect. Experimental results show that the proposed scheme provides higher both video quality and peak signal-to-noise ratio (PSNR), whereas it adds low additional computational complexity.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133611408","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 L band satellite beacon receiver based on Zero IF converter 基于零中频变换器的L波段卫星信标接收机
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100728
Liyang Rui, Zhao Laiding
{"title":"A novel L band satellite beacon receiver based on Zero IF converter","authors":"Liyang Rui, Zhao Laiding","doi":"10.1109/CISP.2011.6100728","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100728","url":null,"abstract":"A novel kind of L band satellite beacon receiver is described in this paper. The Zero IF down convert concept is used to the receipt of the satellite beacon signal. Digital signal processing is also used in the receiver. When the input signal is −90dBm, the output of the receiver is −10dBm, thus s/n is 20dBm. When the input signal is −95dBm, the output of the receiver is also −10dBm, thus s/n is 10dBm. The output is same but s/n is different due to the use of AGC in the Zero IF concept.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132279605","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
Study on network information retrieval based on visual technology 基于可视化技术的网络信息检索研究
2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100577
J. Zhao
{"title":"Study on network information retrieval based on visual technology","authors":"J. Zhao","doi":"10.1109/CISP.2011.6100577","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100577","url":null,"abstract":"This paper analyzes the deficiencies of traditional information retrieval and the advantages of visual information retrieval, studies the contents of visual network information retrieval, and describes a classic case on visual network information retrieval.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132565455","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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