Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181188
Shuqun Zhang
An impulse noise detection method for decision-based or switching filters is presented, which uses one-dimensional Laplacian operators. Fuzzy logic has been used to further improve the performance of the proposed detector. Extensive simulations show that the proposed methods provide better performance than the existing techniques. The non-fuzzy method also has the advantage of computational simplicity.
{"title":"Impulse noise detection using Laplacian operators and fuzzy logic","authors":"Shuqun Zhang","doi":"10.1109/ICOSP.2002.1181188","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181188","url":null,"abstract":"An impulse noise detection method for decision-based or switching filters is presented, which uses one-dimensional Laplacian operators. Fuzzy logic has been used to further improve the performance of the proposed detector. Extensive simulations show that the proposed methods provide better performance than the existing techniques. The non-fuzzy method also has the advantage of computational simplicity.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123119387","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1180126
Liang Mangui, Zhao Fanglong, W. Xiaoli, Ge Shelun, Shen Ying, Hu Guoming, Shan Guanghua
This paper provides several research results about a technique of high quality telephony over LAN. Firstly, the value of the technique is discussed. Secondly, the delay performance of Ethernet LAN is tested by experiments both for the network layer and the application layer. Thirdly, a software architecture orientated to a real-time process like speech communication is proposed against the major reason of the overall transmission delay. Finally, as a conclusion, the possibility of realizing high quality telephony over LAN is demonstrated.
{"title":"High quality telephony over LAN","authors":"Liang Mangui, Zhao Fanglong, W. Xiaoli, Ge Shelun, Shen Ying, Hu Guoming, Shan Guanghua","doi":"10.1109/ICOSP.2002.1180126","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1180126","url":null,"abstract":"This paper provides several research results about a technique of high quality telephony over LAN. Firstly, the value of the technique is discussed. Secondly, the delay performance of Ethernet LAN is tested by experiments both for the network layer and the application layer. Thirdly, a software architecture orientated to a real-time process like speech communication is proposed against the major reason of the overall transmission delay. Finally, as a conclusion, the possibility of realizing high quality telephony over LAN is demonstrated.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114302389","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181087
A. Sontacchi, R. Holdrich
This investigation proposes a possibility to synthesise a true 3D sound field over loudspeakers. A new approach concerning the distance coding is presented. We tried to combine the benefits of using both the wave field synthesis (WFS) approach and higher order ambisonics (HOA). Therefore the proposed system can be divided into two main parts. Firstly the determination of the driving functions of the sound sources using a derivative of the WFS approach. Secondly the coding for transmission and/or storage whereby the scheme is based on the ambisonics approach using higher orders. The paper is organised in four sections. The first section gives a brief introduction about the WFS and the HOA approaches. In the second section the derivation of the driving functions is presented and the coding scheme of the derived source signals is explained. Results are given irk section three. Finally the paper is concluded and further possible research directions are identified.
{"title":"Investigations on distance coding in 3D sound fields","authors":"A. Sontacchi, R. Holdrich","doi":"10.1109/ICOSP.2002.1181087","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181087","url":null,"abstract":"This investigation proposes a possibility to synthesise a true 3D sound field over loudspeakers. A new approach concerning the distance coding is presented. We tried to combine the benefits of using both the wave field synthesis (WFS) approach and higher order ambisonics (HOA). Therefore the proposed system can be divided into two main parts. Firstly the determination of the driving functions of the sound sources using a derivative of the WFS approach. Secondly the coding for transmission and/or storage whereby the scheme is based on the ambisonics approach using higher orders. The paper is organised in four sections. The first section gives a brief introduction about the WFS and the HOA approaches. In the second section the derivation of the driving functions is presented and the coding scheme of the derived source signals is explained. Results are given irk section three. Finally the paper is concluded and further possible research directions are identified.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"225 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113990910","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1179981
Xinbo Gao, H. Ji, Jie Li
The paper presents a novel clustering algorithm supervised by statistical tests. It deals simultaneously with three key data analysis problems: cluster tendency; cluster analysis; cluster validity. It provides an effective tool to analyze the validity and reasonableness of unsupervised pattern classification, especially in the case of a large number of samples. The experimental result illustrates its effectiveness.
{"title":"An advanced cluster analysis method based on statistical test","authors":"Xinbo Gao, H. Ji, Jie Li","doi":"10.1109/ICOSP.2002.1179981","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1179981","url":null,"abstract":"The paper presents a novel clustering algorithm supervised by statistical tests. It deals simultaneously with three key data analysis problems: cluster tendency; cluster analysis; cluster validity. It provides an effective tool to analyze the validity and reasonableness of unsupervised pattern classification, especially in the case of a large number of samples. The experimental result illustrates its effectiveness.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131512660","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1180159
Weihong Wang, Min Yao
Combination methods of neural networks and fuzzy logic are briefly surveyed. Then, a novel combination model is presented for synthetic integration of rainfall. The presented model is composed of four network layers: input layer, membership function construction layer, inference layer and defuzzification layer. The combination model is applied to synthetic integration of forecasted rainfall data produced by gradual regression method, periodic analysis plus multi-layer method and model output statistics method. The model is trained by short-term rainfall data of Zhejiang Province from 1980 to 1997. The synthetic integration (forecast) results from 1998 to 2000 show that the presented model can obtain satisfactory forecast performance.
{"title":"A new model of synthetic integration for meteorological forecast based on neural networks and fuzzy logic","authors":"Weihong Wang, Min Yao","doi":"10.1109/ICOSP.2002.1180159","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1180159","url":null,"abstract":"Combination methods of neural networks and fuzzy logic are briefly surveyed. Then, a novel combination model is presented for synthetic integration of rainfall. The presented model is composed of four network layers: input layer, membership function construction layer, inference layer and defuzzification layer. The combination model is applied to synthetic integration of forecasted rainfall data produced by gradual regression method, periodic analysis plus multi-layer method and model output statistics method. The model is trained by short-term rainfall data of Zhejiang Province from 1980 to 1997. The synthetic integration (forecast) results from 1998 to 2000 show that the presented model can obtain satisfactory forecast performance.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116509659","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181121
Fan Jing, Liu Huihua, Sun Hai
A new method for recognizing the start and the end of each word in a Chinese continuous sentence is discussed. We define a new recognition characteristic called periodic gradual change (PGC). A continuous speech sentence can be separated into many single words by a combination of the new method of PGC and other characteristics such as zero crossing rate (ZCR), instantaneous swing (E characteristic) and linear predictive coding (LPC) parameter. The recognition rate is improved for continuous speech segmentation by the new method.
{"title":"GPC method in segment of Chinese continuous sentence","authors":"Fan Jing, Liu Huihua, Sun Hai","doi":"10.1109/ICOSP.2002.1181121","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181121","url":null,"abstract":"A new method for recognizing the start and the end of each word in a Chinese continuous sentence is discussed. We define a new recognition characteristic called periodic gradual change (PGC). A continuous speech sentence can be separated into many single words by a combination of the new method of PGC and other characteristics such as zero crossing rate (ZCR), instantaneous swing (E characteristic) and linear predictive coding (LPC) parameter. The recognition rate is improved for continuous speech segmentation by the new method.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132740713","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181108
Gao Hue, Niu Congmin, Zhou Duqiang, Huang Duansheng, Su Guangchuan
To research the combined effect of noise and vibration on the articulation, changes of acoustic characteristics of Chinese single syllabic utterances were investigated under the combined factors. The experiment conditions combined noise and vibration, simple noise, simple vibration, and control. The results showed that, as compared with simple noise, simple vibration or control conditions, the fundamental frequency, energy, and duration of the articulation under the combined conditions increased significantly.
{"title":"Combined effect of noise and vibration on acoustic characteristics of speech production","authors":"Gao Hue, Niu Congmin, Zhou Duqiang, Huang Duansheng, Su Guangchuan","doi":"10.1109/ICOSP.2002.1181108","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181108","url":null,"abstract":"To research the combined effect of noise and vibration on the articulation, changes of acoustic characteristics of Chinese single syllabic utterances were investigated under the combined factors. The experiment conditions combined noise and vibration, simple noise, simple vibration, and control. The results showed that, as compared with simple noise, simple vibration or control conditions, the fundamental frequency, energy, and duration of the articulation under the combined conditions increased significantly.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133307784","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181105
R. Ivanov, M. Momchedjikov
In this paper describes a method for adaptive, parameter-independent, on-line channels' weight estimation, based on entropy in the output probabilities from ANN classifiers, rather than the noise level or SNR estimation. A recursive formula for channel combination calculation, based on the approximation of all possible channels combination, is deduced. The proposed method has been used to develop a multi-channel distributed speech recognition (DSR) system. From experiments a conclusion can be drawn that the use of the proposed method results in an absolute system accuracy improvement of 12.4% in comparison with the base one-channel DSR system from the ETSI Aurora Project.
{"title":"Method for adaptive on-line data fusion in multi-channel automatic speech recognition systems","authors":"R. Ivanov, M. Momchedjikov","doi":"10.1109/ICOSP.2002.1181105","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181105","url":null,"abstract":"In this paper describes a method for adaptive, parameter-independent, on-line channels' weight estimation, based on entropy in the output probabilities from ANN classifiers, rather than the noise level or SNR estimation. A recursive formula for channel combination calculation, based on the approximation of all possible channels combination, is deduced. The proposed method has been used to develop a multi-channel distributed speech recognition (DSR) system. From experiments a conclusion can be drawn that the use of the proposed method results in an absolute system accuracy improvement of 12.4% in comparison with the base one-channel DSR system from the ETSI Aurora Project.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134312527","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1181125
Xiao Zhitao, Guo Chengming, Yu Ming, Li Qiang
Gabor function and log Gabor function are compared in this paper. The log Gabor wavelet is developed and its performance is analyzed. Compared with Gabor wavelet, the excellent performance of log Gabor wavelet is shown. Finally, log Gabor wavelet is applied to image edge detection, and it is shown that using log Gabor wavelet can not only improve the detection property, but also save about half the computational load compared with Gabor wavelet, in the case of similar detection effect.
{"title":"Research on log Gabor wavelet and its application in image edge detection","authors":"Xiao Zhitao, Guo Chengming, Yu Ming, Li Qiang","doi":"10.1109/ICOSP.2002.1181125","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1181125","url":null,"abstract":"Gabor function and log Gabor function are compared in this paper. The log Gabor wavelet is developed and its performance is analyzed. Compared with Gabor wavelet, the excellent performance of log Gabor wavelet is shown. Finally, log Gabor wavelet is applied to image edge detection, and it is shown that using log Gabor wavelet can not only improve the detection property, but also save about half the computational load compared with Gabor wavelet, in the case of similar detection effect.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"50 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115552076","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}
Pub Date : 2002-08-26DOI: 10.1109/ICOSP.2002.1180153
Hongbin Ren, Jinlei Jian, W.-F. Tang, Yuqin Zhao, Zhishe Cui, Ke Lian
According to the characteristic of an air defense missile, the data fusion structure of an infrared/millimeter wave double-model homing head is analyzed. A double-layer fusion project, which includes characteristic fusion and strategic decision fusion, is used in detecting and tracking targets. The methods of characteristic fusion and strategic decision fusion are given.
{"title":"A preliminary research into the data fusion of double model homing head","authors":"Hongbin Ren, Jinlei Jian, W.-F. Tang, Yuqin Zhao, Zhishe Cui, Ke Lian","doi":"10.1109/ICOSP.2002.1180153","DOIUrl":"https://doi.org/10.1109/ICOSP.2002.1180153","url":null,"abstract":"According to the characteristic of an air defense missile, the data fusion structure of an infrared/millimeter wave double-model homing head is analyzed. A double-layer fusion project, which includes characteristic fusion and strategic decision fusion, is used in detecting and tracking targets. The methods of characteristic fusion and strategic decision fusion are given.","PeriodicalId":159807,"journal":{"name":"6th International Conference on Signal Processing, 2002.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114561020","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}
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