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Some refelexions and results about the effect of speech denoising algorithms on speech quality 关于语音去噪算法对语音质量影响的一些思考和结果
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2010-05-10 DOI: 10.1109/ISSPA.2010.5605537
A. B. Aicha, S. B. Jebara
{"title":"Some refelexions and results about the effect of speech denoising algorithms on speech quality","authors":"A. B. Aicha, S. B. Jebara","doi":"10.1109/ISSPA.2010.5605537","DOIUrl":"https://doi.org/10.1109/ISSPA.2010.5605537","url":null,"abstract":"This paper deals with the importance of identifying and selecting the adequate speech denoising technique according to the desired quality. Three types and degradations are considered: the overall degradation, the speech distortion and the residual background noise. Different popular techniques of speech enhancement with and without perceptual tools are considered. Different criteria of quality evaluation well correlated with subjective tests and ITU-T recommendations are used. The analysis carried during this paper showed that, in terms of overall quality and residual noise evaluation, perceptual techniques lead to the better performances. In terms of speech distortion, the best performances are obtained with spectral subtraction and statistical techniques.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114546683","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 comprehensive approach for texture classification 纹理分类的一种综合方法
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2010-05-10 DOI: 10.1109/ISSPA.2010.5605425
P. A. Reddy, P. Murty, E. Reddy
{"title":"A comprehensive approach for texture classification","authors":"P. A. Reddy, P. Murty, E. Reddy","doi":"10.1109/ISSPA.2010.5605425","DOIUrl":"https://doi.org/10.1109/ISSPA.2010.5605425","url":null,"abstract":"Classification of textures based on wavelet pattern analysis is one of the most effective methods in texture classification. However using all frequency sub-bands in decomposition for classification may increase time complexity of classification algorithms. To reduce the time complexity, sub-bands with high energy and entropy are selected for classification. Fractal dimension can be used to select such significant sub-bands for decomposition at each level. Further statistical features of these significant sub-bands are given to modified K-NN classifier for classification. This paper describes texture classification using sub-bands of wavelets based on fractal dimensions and their results are compared with the results of texture classification using conventional features and also with different classifiers. Success rate is very high and time complexity is also reduced to the order of O(n).","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495149","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
Two approaches of Kalman Filtering for oesophageal speech 食道语音卡尔曼滤波的两种方法
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2010-05-10 DOI: 10.1109/ISSPA.2010.5605536
I. Ruiz, B. G. Zapirain, A. M. Zorrilla
{"title":"Two approaches of Kalman Filtering for oesophageal speech","authors":"I. Ruiz, B. G. Zapirain, A. M. Zorrilla","doi":"10.1109/ISSPA.2010.5605536","DOIUrl":"https://doi.org/10.1109/ISSPA.2010.5605536","url":null,"abstract":"This paper deals with oesophageal speech enhancement using Kalman Filtering. Such an exceptionally special type of voice is due to the laryngectomy undergone by those persons with larynx cancer. Kalman filtering is known as an effective speech enhancement technique. In this context, several approaches have been developed in the past. One of the most important steps in the speech enhancement using Kalman filtering is the estimation of parameters of the signal parameters and noise. Coloured noise is considered in this kind of voice. Two approaches have been carried out in this paper in order to estimate the noise parameters: firstly, the measurement noise is estimated using AR model of oesophageal voice during the period of silence and the model noise process is not considered. Secondly, the model and measurement noise process is estimated theoretically in recursive procedure.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"13 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120811670","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
Classification of voice disorders in children with cochlear implantation and hearing aid using multiple classifier fusion 应用多分类器融合对人工耳蜗和助听器患儿语音障碍进行分类
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2010-05-10 DOI: 10.1109/ISSPA.2010.5605466
Z. Mahmoudi, S. R. Quchani, M. Ghasemi, V. Asadpour, Hamid Tayarani
{"title":"Classification of voice disorders in children with cochlear implantation and hearing aid using multiple classifier fusion","authors":"Z. Mahmoudi, S. R. Quchani, M. Ghasemi, V. Asadpour, Hamid Tayarani","doi":"10.1109/ISSPA.2010.5605466","DOIUrl":"https://doi.org/10.1109/ISSPA.2010.5605466","url":null,"abstract":"Speech production and speech phonetic features gradually improve in children by obtaining audio feedback after cochlear implantation or using hearing aid. In this study, voice disorders in children with cochlear implantation and hearing aid are classified. 30 Persian children participated in the study, including 6 children in levels 1 to 3 and 12 in level 4. Voice samples of 5 isolated Persian words “mashin”, “mar”, “moosh”, “gav” and “mouz” are analyzed. 4 level for the voice quality are considered, the higher the level the less the speech disorders. “Frame-based” and “word-based” features are extracted from speech signal. Some of the frame-based features include fundamental frequency, formants and nasality and word-based features include phase space features and wavelet coefficients. For frame-based features, hidden Markov models are used as classifiers and for word-based features, neural network is used. After Classifiers fusion with three methods: Majority Voting Rule, Linear Combiner and Stacked fusion, the best classification rates are obtained using frame-base and word-base features excluding third to second formant ratio and MVR rule (level1:100%, level2: 93.75%, level3: 100%, level4: 94%). Output of the study can help speech pathologists to follow up voice disorder recovery in children with cochlear implantation or hearing aid.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123301838","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
Real time video sharpness enhancement by wavelet-based luminance transient improvement 基于小波的亮度瞬态改进实时视频清晰度增强
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2007-02-01 DOI: 10.1109/ISSPA.2007.4555337
W. Ali
{"title":"Real time video sharpness enhancement by wavelet-based luminance transient improvement","authors":"W. Ali","doi":"10.1109/ISSPA.2007.4555337","DOIUrl":"https://doi.org/10.1109/ISSPA.2007.4555337","url":null,"abstract":"Sharpness is a perceptual feature, which is determined by the human visual system. The human eye is more sensitive to the sharpness of the luminance signal than to that of the chrominance, however, higher resolution images, e.g. high definition images (HDTV), require the co-joint enhancement of both the luminance (black and white) and the chrominance sharpness. Even though improving the edge transitions results in an improved overall sharpness, the lack of adaptability to the picture contents produces irritating artifacts and reduces the overall impression of sharpness improvement. Other methods for sharpness enhancement used edge transition to better improve the picture quality, but either lacked adaptability to the picture contents, degraded with noisy sequences and/or required complex hardware (complex filters support and associated hardware needed for processing). We introduce a real time video sharpness enhancement method, which adaptively sharpens the picture by improving the edge transitions (variable edge enhancement at different parts of the image) using wavelet transforms. The results show a perceived desired sharpness improvement while avoiding the introduction of any artifact.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"62 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115339120","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
Adaptive neuro-fuzzy inference system for speckle noise reduction in SAR images SAR图像散斑降噪的自适应神经模糊推理系统
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 2007-02-01 DOI: 10.1109/ISSPA.2007.4555350
Alper Bastürk, M. E. Yüksel
{"title":"Adaptive neuro-fuzzy inference system for speckle noise reduction in SAR images","authors":"Alper Bastürk, M. E. Yüksel","doi":"10.1109/ISSPA.2007.4555350","DOIUrl":"https://doi.org/10.1109/ISSPA.2007.4555350","url":null,"abstract":"An adaptive neuro-fuzzy inference system (ANFIS) based method is proposed for speckle noise reduction in synthetic aperture radar (SAR) images. Before using active RADAR (radio detection and ranging) and SAR imageries, the very first step is to reduce the effect of speckle noise. Reduction of speckle noise is one of the most important processes to increase the quality of radar coherent images. Filtering is the common method which is used to reduce the speckle noise. For this purpose, two ANFISs are trained and outputs of these systems are converted to one output through a mean calculator in this work. Performance of the proposed method is compared with performances of state-of-the-art methods in the literature for speckle noise reduction. Results are presented by filtered images and a table.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124273040","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
Optimal parameters in modulated Laguerre series expansions 调制拉盖尔级数展开的最优参数
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 1999-08-22 DOI: 10.1109/ISSPA.1999.818144
B. E. Sarroukh, A. C. Brinker, S. J. Eijndhoven
{"title":"Optimal parameters in modulated Laguerre series expansions","authors":"B. E. Sarroukh, A. C. Brinker, S. J. Eijndhoven","doi":"10.1109/ISSPA.1999.818144","DOIUrl":"https://doi.org/10.1109/ISSPA.1999.818144","url":null,"abstract":"The harmonically modulated Laguerre functions constitute an orthonormal basis in the Hilbert space of square-integrable functions on R/sup +/. This basis comprises three free parameters, namely a modulation, a scale and an order factor. In practice, we are interested in series expansions that are as compact as possible. The free parameters can be used as the means to obtain a compact series expansion for a given function. As the compactness criterion the first-order moment of the energy distribution in the transform domain is chosen. In that case, the optimum compactness parameters can be given in a simple analytic form depending on signal measurements only.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"74 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":"132897623","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
A low complexity bit loading algorithm for OFDM system OFDM系统中一种低复杂度的比特加载算法
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2005.1580215
Yu Yang, X. Sha, Zhonghua Zhang
{"title":"A low complexity bit loading algorithm for OFDM system","authors":"Yu Yang, X. Sha, Zhonghua Zhang","doi":"10.1109/ISSPA.2005.1580215","DOIUrl":"https://doi.org/10.1109/ISSPA.2005.1580215","url":null,"abstract":"A new approach to loading for Orthogonal Frequency Division Multiplexing (OFDM) system is proposed, this bit-loading algorithm assigns bits to different subchannels in order to minimize the transmit energy. In the algorithm, first bits are allocated to each subchannels according to channel condition, Shannon formula and QoS require of the user, then the residual bits are allocated to the subchannels bit by bit. in this way the algorithm is efficient while calculation is less complex. The algorithm is of O (4N) complexity.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126414300","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
Detecting fetal movements using non-invasive accelerometers: A preliminary analysis 使用非侵入性加速度计检测胎儿运动:初步分析
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2010.5605602
Thomas Girier, J. O’Toole, M. Mesbah, B. Boashash, I. Clough, S. Wilson, M. Fuentes, Susan Callan, C. East, P. Colditz
{"title":"Detecting fetal movements using non-invasive accelerometers: A preliminary analysis","authors":"Thomas Girier, J. O’Toole, M. Mesbah, B. Boashash, I. Clough, S. Wilson, M. Fuentes, Susan Callan, C. East, P. Colditz","doi":"10.1109/ISSPA.2010.5605602","DOIUrl":"https://doi.org/10.1109/ISSPA.2010.5605602","url":null,"abstract":"Monitoring fetal movement is important to assess fetal health. Standard clinical fetal monitoring technologies include ultrasound imaging and cardiotocography. Both have limited prognostic value and require significant health resources. We have recently developed a low-cost, passive, non-invasive system to monitor fetal activity, and therefore fetal health. This accelerometer-based system does not require trained operators and can be used outside a clinic. This work is a preliminary study to develop a method to automatically detect fetal movement using this new accelerometer system. We assess the efficacy of using a threshold method over a range of different frequency bands. We also examine using a set of statistical features for a detection method. Our results indicate that neither method performs sufficiently well to automatically detect fetal movement.","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114607053","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: 19
Performance Comparison Of H∞ And Filters And Equalisers H∞与滤波器和均衡器的性能比较
International Conference on Information Sciences, Signal Processing and their Applications Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.1996.615086
G. Einicke, L. White
{"title":"Performance Comparison Of H∞ And Filters And Equalisers","authors":"G. Einicke, L. White","doi":"10.1109/ISSPA.1996.615086","DOIUrl":"https://doi.org/10.1109/ISSPA.1996.615086","url":null,"abstract":"","PeriodicalId":298434,"journal":{"name":"International Conference on Information Sciences, Signal Processing and their Applications","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654263","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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