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ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)最新文献

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Binaural audio in multimedia systems to improve auditory perception for the hearing impaired 多媒体系统中的双耳音频可改善听障人士的听觉感知
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818105
D. Chaudhari, P. C. Pandey
{"title":"Binaural audio in multimedia systems to improve auditory perception for the hearing impaired","authors":"D. Chaudhari, P. C. Pandey","doi":"10.1109/ISSPA.1999.818105","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818105","url":null,"abstract":"Persons with sensorineural hearing impairments experience difficulty in using the audio part of multimedia information. Degraded frequency selectivity of the ear, due to increase in spectral masking along the cochlear partition, results in degraded speech perception. Splitting the speech signal by filtering it with a filter bank and adding signals from alternate bands for presenting to the two ears is likely to reduce the effect of spectral masking and thus help in improving speech intelligibility. The dichotically presented signals are perceptually combined in the higher levels of auditory processes. We have carried out experimental evaluation of this scheme, using critical band filters, in off-line and real-time processing of speech signals. The scheme resulted in improving speech quality, response time, recognition scores, and transmission of consonantal features, particularly the place, indicating usefulness of the scheme for better reception of spectral characteristics. The signal processing for improving the auditory perception by persons with moderate sensorineural hearing loss may be integrated as a part of the multimedia system.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131072958","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
Research on monitoring rate of lump coal 块煤率监测方法研究
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818152
Fuqiang Liu, Jiangsheng Qian, Xing-Jian Wang, Shen Rong
{"title":"Research on monitoring rate of lump coal","authors":"Fuqiang Liu, Jiangsheng Qian, Xing-Jian Wang, Shen Rong","doi":"10.1109/ISSPA.1999.818152","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818152","url":null,"abstract":"An approach is proposed to monitor the rate of lump coal based on image processing. The video signal output from a camera is put into a computer image gathering card to get the lump coals original picture in the coalface. After pretreatment and edge enhancement, the computer recognizes the lump coal and calculates its size. Finally, we count the data, display and print the result. Using this method, we effectively improve the quality of raw coal on a comprehensive mechanized coalface.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132963799","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
Gabor's signal expansion and a modified Zak transform for a quincunx-type sampling geometry 针对昆克斯型采样几何的Gabor信号展开和改进的Zak变换
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818162
M. J. Bastiaans, A. J. V. Leest
{"title":"Gabor's signal expansion and a modified Zak transform for a quincunx-type sampling geometry","authors":"M. J. Bastiaans, A. J. V. Leest","doi":"10.1109/ISSPA.1999.818162","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818162","url":null,"abstract":"Gabor's (1946) signal expansion and the Gabor transform are formulated on a quincunx lattice instead of on the traditional rectangular lattice; the representation of the quincunx lattice is based on the rectangular lattice via either a shear operation or a rotation operation. A modified Zak (1972) transformation is defined with the help of which Gabor's signal expansion and the Gabor transform can be brought into product forms that are identical to the ones that are well known for the rectangular sampling geometry. The shear operation on the lattice is associated with an operation on the synthesis and the analysis window, consisting of a multiplication by a quadratic-phase function. Following this procedure, the well-known biorthogonality condition for the window functions in the rectangular sampling geometry can be directly translated to the quincunx case.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132064354","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
System analysis of an intelligent pixel mobile multimedia communicator 智能像素移动多媒体通信系统分析
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.815793
A. Rassau, R. Mavaddat, Geoffrey Alagoda, K. Eshraghian
{"title":"System analysis of an intelligent pixel mobile multimedia communicator","authors":"A. Rassau, R. Mavaddat, Geoffrey Alagoda, K. Eshraghian","doi":"10.1109/ISSPA.1999.815793","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.815793","url":null,"abstract":"A previously proposed intelligent pixel mobile multimedia communicator (IPM/sup 3/C) integrates the capture, coding and display of optical images into a single array of pixel processors. The image compression and decompression required for real-time coding of video is achieved by parallel processing within the array elements. In this paper the intelligent pixel (IP) communicator is described and the effect of the various processing stages on the spatial frequency content of the images is considered.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805781","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 new algorithm for joint blind signal separation and acoustic echo canceling 一种联合盲信号分离与声回波抵消的新算法
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.815814
Daniel W. E. Schobben, P. Sommen
{"title":"A new algorithm for joint blind signal separation and acoustic echo canceling","authors":"Daniel W. E. Schobben, P. Sommen","doi":"10.1109/ISSPA.1999.815814","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.815814","url":null,"abstract":"The problem of joint blind signal separation and acoustic echo cancelling arises in applications such as teleconferencing and voice controlled machinery. Microphones pick up a signal of the desired speaker together with contributions of other speakers and loudspeakers in these applications. The contributions of these loudspeaker signals to the microphone signals need to be cancelled. The remaining signals are then separated so that the individual local speakers are recovered. In this paper an extension of the previously introduced convolutive blind signal separation algorithm, CoBliSS is presented. This extended algorithm is capable of performing combined blind signal separation and acoustical echo cancelling at a low computational cost. The performance of the extended CoBliSS algorithm is evaluated using audio that is recorded in a real acoustical environment.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126107780","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
Pitch estimation and a measure of voicing from pseudo-spectra 基于伪谱的基音估计和语音测量
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818112
N. Malik, W. Holmes
{"title":"Pitch estimation and a measure of voicing from pseudo-spectra","authors":"N. Malik, W. Holmes","doi":"10.1109/ISSPA.1999.818112","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818112","url":null,"abstract":"In the sinusoidal model of speech, the analysis and synthesis is carried out using a superposition of sinusoidal components whose frequencies, amplitudes, and phases are to be estimated. We apply subspace and linear prediction methods of frequency estimation to speech waveforms using this model. These techniques yield a measure of the degree of voicing. They also lead to a new robust and reliable pitch estimation algorithm.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"687 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116111973","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
Optimum weighted ESPRIT for 2-D angle estimation using a circular array 最优加权ESPRIT二维角度估计使用圆形阵列
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.815805
Qi Cheng, Runyu Yang
{"title":"Optimum weighted ESPRIT for 2-D angle estimation using a circular array","authors":"Qi Cheng, Runyu Yang","doi":"10.1109/ISSPA.1999.815805","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.815805","url":null,"abstract":"We propose and analyze an optimum weighted ESPRIT (OW-ESPRIT) in terms of minimum variance of direction cosine of 2-D angles. This OW-ESPRIT is shown to result in more than 2 dB reduction in variance, in situations of low angle estimation.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121055655","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
Analysis of fuzzy logic and autoregressive video source predictors using T-tests 使用t检验的模糊逻辑和自回归视频源预测分析
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818101
B. Qiu
{"title":"Analysis of fuzzy logic and autoregressive video source predictors using T-tests","authors":"B. Qiu","doi":"10.1109/ISSPA.1999.818101","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818101","url":null,"abstract":"This paper presents performance comparison of a fuzzy logic predictor and an autoregressive predictor. Multi-step ahead predictions were made on the traffic intensity of digital video sources coded with an MPEG coder (hybrid motion compensation/differential pulse code modulation/discrete cosine transform method). Although current coding standards recommend constant bit rate (CBR) output by means of a smoothing buffer, the method inherently produces variable bit rate (VBR) output, and VBR transmission is necessary for high quality delivery. Prediction results described in this paper have been obtained using a fuzzy logic prediction scheme, and the conventional linear autoregressive (AR) algorithm. Prediction errors are analysed with low order statistical parameters and hypothesis tests. The proposed fuzzy prediction methods offer higher accuracy and can be applied to the development of usage parameter control (UPC), connection admission control (CAC) and congestion control algorithms in ATM networks.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125196023","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
A time-delay digital tanlock loop 一个延时数字锁环
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818194
Z. M. Hussain, B. Boashash, M. Hassan-Ali, S. Al-Araji
{"title":"A time-delay digital tanlock loop","authors":"Z. M. Hussain, B. Boashash, M. Hassan-Ali, S. Al-Araji","doi":"10.1109/ISSPA.1999.818194","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818194","url":null,"abstract":"A digital tanlock loop (DTL) that utilises a constant time-delay unit instead of the constant 90/spl deg/ phase-shifter is proposed to reduce the complexity of implementation and rid the circuit of the practical problems, approximations and limitations caused by the 90/spl deg/ phase-shifter. The time-delay digital tanlock loop (TDTL) preserves the most important features of the conventional DTL (CDTL) and introduces improvement over the first-order CDTL under suitable choice of the circuit parameters.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122917924","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: 60
Design of 3-D recursive digital filters using linear programming 三维递归数字滤波器的线性规划设计
ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359) Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.815834
I. El-Feghi, M. Sid-Ahmed, M. Ahmadi
{"title":"Design of 3-D recursive digital filters using linear programming","authors":"I. El-Feghi, M. Sid-Ahmed, M. Ahmadi","doi":"10.1109/ISSPA.1999.815834","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.815834","url":null,"abstract":"This paper presents a linear programming approach to the design of three-dimensional (3-D) recursive digital filters. Linear constraints are imposed on the filter coefficients to ensure stability. The designed filter has near linear phase characteristics with arbitrary magnitude response. An example to illustrate the usefulness of the proposed technique is presented.","PeriodicalId":302569,"journal":{"name":"ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications (IEEE Cat. No.99EX359)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132618925","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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