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2009 16th International Conference on Digital Signal Processing最新文献

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A new FFT concept for efficient VLSI implementation: Part I - Butterfly processing element 高效VLSI实现的FFT新概念:第一部分-蝴蝶处理元件
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201181
Marwan A. Jaber, D. Massicotte
{"title":"A new FFT concept for efficient VLSI implementation: Part I - Butterfly processing element","authors":"Marwan A. Jaber, D. Massicotte","doi":"10.1109/ICDSP.2009.5201181","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201181","url":null,"abstract":"This article describes a new approach for higher radix butterflies suitable for pipeline implementation. Based on the butterfly computation introduced by Cooley-Tukey [1], we introduce a novel approach for the factorization of the Discrete Fourier Transform (DFT), by redefining the butterfly computation, which is more suitable for efficient VLSI implementation. This proposed factorization motivated us to present a new concept of a radix-r Fast Fourier Transform (FFT), in which the radix-r butterfly computation concept was formulated as composite engines to implement each of the butterfly computations. This concept enables the radix r butterfly-processing element (BPE) to be designed by maintaining only one complex value multiplier in the butterfly critical path for any given r. Algorithmic description and performance of low complexity FFT method are considered in this paper and parallel pipelined FFT in a companion paper [15], Part II Parallel Pipelined FFT Processing.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127177919","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: 15
MOBILE 3DTV technology demonstrator based on OMAP 3430 基于OMAP 3430的移动3DTV技术演示
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201091
A. Gotchev, Antti Tikanmäki, A. Boev, K. Egiazarian, I. Pushkarov, Nikolay Daskalov
{"title":"MOBILE 3DTV technology demonstrator based on OMAP 3430","authors":"A. Gotchev, Antti Tikanmäki, A. Boev, K. Egiazarian, I. Pushkarov, Nikolay Daskalov","doi":"10.1109/ICDSP.2009.5201091","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201091","url":null,"abstract":"We present receiver-side components of the mobile 3DTV technology being developed. We focus on the DVB-T/H receiving module, the 3D video decoder and player, and the auto-stereoscopic display. These three components have been integrated within the OMAP 3430 EVM. We have developed software decapsulator which decapsulates MPE-FEC tables out of MPEG2 transform streams into RTP to feed the H.264 based video decoder modified to decode side-by-side stereo video. An interface card has been developed to interface a parallax barrier auto-stereoscopic display to the system. We provide details about the implementation of these modules and focus on some image processing techniques aimed at correct display of the stereo video content.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945246","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: 11
Signal segmentation and modelling based on EquiPartition principle 基于EquiPartition原理的信号分割与建模
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201105
C. Panagiotakis, G. Tziritas
{"title":"Signal segmentation and modelling based on EquiPartition principle","authors":"C. Panagiotakis, G. Tziritas","doi":"10.1109/ICDSP.2009.5201105","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201105","url":null,"abstract":"In this paper, we propose a method for time interval segmentation of signals based on an EquiPartition principle (EP). According to EP, the signal is segmented into segments that give equal errors in reconstruction selecting the most suitable model to describe each segment. Moreover, the segments are equivalent in the content domain, since the signal is segmented into segments that are modelled by the same number of coefficients. The proposed method has been successfully applied on different types of signals like: physiologic, speech, human motion, financial time series. Finally, the proposed methodology is very flexible on changes of error criteria, signal modelling and on signal dimension yielding a robust method for segmentation and modelling of signals.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128779123","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: 8
A robust Dual Predictive Line Acoustic Noise Cancellers 一种鲁棒的双预测线消声器
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201139
Marwan A. Jaber, D. Massicotte
{"title":"A robust Dual Predictive Line Acoustic Noise Cancellers","authors":"Marwan A. Jaber, D. Massicotte","doi":"10.1109/ICDSP.2009.5201139","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201139","url":null,"abstract":"This paper proposes a robust adaptive algorithm for adjusting coefficients of an adaptive filter, which is used in Active Noise Canceller (ANC). The filtered LMS algorithm, which is widely used in digital signal processing, is deployed to reduce the effect of acoustic interference in a noisy environment. In this paper the zero noise output of the proposed one and two stages Dual Predictive Line ANC (DPL-ANC) algorithm, which could be deployed in underground communication system, is presented. A second DPL-ANC using voice activity detection (VAD) to control the updated filter coefficients is also proposed. Evaluation results with real-world underground and noisy speech data exhibit significant improvement on the convergence and the zero noise output of both proposed two stages DPL-ANC.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130338566","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
Continuous observation and archival of acoustic scenes using wireless sensor networks 利用无线传感器网络对声学场景进行连续观测和存档
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201082
G. Wichern, H. Kwon, A. Spanias, A. Fink, H. Thornburg
{"title":"Continuous observation and archival of acoustic scenes using wireless sensor networks","authors":"G. Wichern, H. Kwon, A. Spanias, A. Fink, H. Thornburg","doi":"10.1109/ICDSP.2009.5201082","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201082","url":null,"abstract":"Acoustic scene analysis has proven an invaluable tool in diverse fields ranging from biology to defense and security. Wireless sensor networks present an attractive means of implementing an acoustic monitoring system due to their low cost and ability to be easily deployed in a wide range of areas. In this paper acoustic features are extracted at the sensor level, and then transmitted to the base station where acoustic events are segmented using a dynamic Bayseian network. Segmented events are then indexed with the time and location where they occurred, allowing users to link events in terms of time, place, and acoustic characteristics. Our experiments show that a feature set that allows for general characterization of diverse sound environments can be extracted at the sensor level, while an illustrative example shows the segmentation algorithm detecting footsteps in low SNR conditions.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126698697","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
Quantization effects in applying chaos theory to the detection of motion in image sequences 将混沌理论应用于图像序列运动检测中的量化效应
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201065
M. Farmer
{"title":"Quantization effects in applying chaos theory to the detection of motion in image sequences","authors":"M. Farmer","doi":"10.1109/ICDSP.2009.5201065","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201065","url":null,"abstract":"Recent research has demonstrated that tools from chaos theory can be applied to robustly detect motion and change in image sequences, even in the presence of spatiotemporally varying illumination. One key issue in digital imaging systems, however, is the effect of the quantization. This paper first demonstrates the effects of quantization on the phase space trajectories of pixel amplitudes and then proposes a method for addressing these effects by combining of multi-fractal measures with algebraic curve-based trajectory analysis to identify regions of the phase space with quantized chaotic trajectories. This proposed method is demonstrated in the application of object motion detection in video image sequences, but the results may prove applicable for other digitized information sources which may be produced by non-linear systems or processes.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"948 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124329636","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
Face recognition with biometric encryption for privacy-enhancing self-exclusion 人脸识别与生物特征加密增强隐私的自我排斥
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201257
Haiping Lu, K. Martin, F. Bui, K. Plataniotis, D. Hatzinakos
{"title":"Face recognition with biometric encryption for privacy-enhancing self-exclusion","authors":"Haiping Lu, K. Martin, F. Bui, K. Plataniotis, D. Hatzinakos","doi":"10.1109/ICDSP.2009.5201257","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201257","url":null,"abstract":"Face recognition has been employed in various security-related applications such as surveillance, mugshot identification, e-passport, and access control. Despite its recent advancements, privacy concern is one of several issues preventing its wider deployment. In this paper, we address the privacy concern for a self-exclusion scenario of face recognition, through combining face recognition with a simple biometric encryption scheme called helper data system. The combined system is described in detail with focus on the key binding procedure. Experiments are carried out on the CMU PIE face database. The experimental results demonstrate that in the proposed system, the biometric encryption module tends to significantly reduce the false acceptance rate while increasing the false rejection rate.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124013756","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: 58
Positioning principles with a mobile TV system using DVB-SH signals and a Single Frequency Network 使用DVB-SH信号和单频网络的移动电视系统定位原理
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201204
P. Thevenon, O. Julien, C. Macabiau, D. Serant, L. Ries, S. Corazza, M. Bousquet
{"title":"Positioning principles with a mobile TV system using DVB-SH signals and a Single Frequency Network","authors":"P. Thevenon, O. Julien, C. Macabiau, D. Serant, L. Ries, S. Corazza, M. Bousquet","doi":"10.1109/ICDSP.2009.5201204","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201204","url":null,"abstract":"Mobile receiver positioning has received a lot of attention, both in research and standardization bodies, due to regulatory (E-911) or commercial (Location-Based Services) incentives. This paper investigates the possibility of self-positioning a mobile receiver using a mobile TV broadcasting system based on the European DVB-SH standard. This OFDM-based standard offers the interesting possibility of using a Single Frequency Network (SFN) of emitters, meaning that the transmitters are synchronized, which is extremely precious for navigation applications based on Time of Arrival measurements. This paper proposes to base our positioning service on the use of the estimation of the channel done by the receiver, in order to use Time Differences of Arrival techniques. In order to detect several emitters in a SFN, it is proposed to introduce artificial delays between adjacent emitters. The impact of this modification is investigated and some particular DVB-SH signal parameters are found to be well-suited to this solution.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124142582","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: 25
Complexity scalability design in global pulse replacement algorithm for ACELP speech codecs ACELP语音编解码器全局脉冲替换算法的复杂性可扩展性设计
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201059
Fu-Kun Chen, B.-K. Su, Yue-Dar Jou
{"title":"Complexity scalability design in global pulse replacement algorithm for ACELP speech codecs","authors":"Fu-Kun Chen, B.-K. Su, Yue-Dar Jou","doi":"10.1109/ICDSP.2009.5201059","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201059","url":null,"abstract":"The algebraic code excited linear prediction (ACELP) algorithm, due to low complexity and high quality in its analysis-by-synthesis (AbS) optimization, has been adopted by many speech coding standards. In this paper, the scalability of computational complexity to the global pulse replacement search method for ACELP is proposed. In addition, the proposed method can achieve the lowest computational complexity with perceptually negligible degradation. Based on the standard subjective and objective quality measurements, the experimental results reflect the facts.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125724812","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
Transparent and perceptually enhanced JPEG image encryption 透明和感知增强的JPEG图像加密
2009 16th International Conference on Digital Signal Processing Pub Date : 2009-07-05 DOI: 10.1109/ICDSP.2009.5201075
Bian Yang, Chongqing Zhou, C. Busch, X. Niu
{"title":"Transparent and perceptually enhanced JPEG image encryption","authors":"Bian Yang, Chongqing Zhou, C. Busch, X. Niu","doi":"10.1109/ICDSP.2009.5201075","DOIUrl":"https://doi.org/10.1109/ICDSP.2009.5201075","url":null,"abstract":"In many applications encryption/decryption of compressed images or videos is desired to be transparent to the compression decoder to maintain the file format, file size and content-relevant functionalities. We propose in this paper a transparent encryption mechanism for JPEG-encoded image files to meet the requirements of formatcompliance and file-size preservation. The algorithm is based on a special cross-block Varied-Length Codes (VLC) shuffling method perceptually enhanced by a reversible histogram spreading processing, which tends to smoothly re-distribute VLCs among spatial blocks in a reversible way. The algorithm performs visually better than existing shuffling based schemes against content leakage attacks such as DC value removal.","PeriodicalId":409669,"journal":{"name":"2009 16th International Conference on Digital Signal Processing","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115745150","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: 14
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