A new permutation method for ICA (Independent Component Analysis) separated signal blocks is presented. The proposed method utilizes the associativity in column vectors of estimated mixing matrix and tracking filter. It has advantages of not requiring array calibration, efficient computation, and real time updatability. Furthermore, it is shown, by an experiment using radio wave signals, that the proposed algorithm successfully permutes the separated signal blocks.
{"title":"Permutation scheme by tracking association for ICA separated signal blocks","authors":"Takeshi Amishima, Atsushi Okamura, Shinichi Morita, Tetsuo Kirimoto","doi":"10.1109/SICE.2008.4655255","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655255","url":null,"abstract":"A new permutation method for ICA (Independent Component Analysis) separated signal blocks is presented. The proposed method utilizes the associativity in column vectors of estimated mixing matrix and tracking filter. It has advantages of not requiring array calibration, efficient computation, and real time updatability. Furthermore, it is shown, by an experiment using radio wave signals, that the proposed algorithm successfully permutes the separated signal blocks.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124096645","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654722
M. Ahad, T. Ogata, J. Tan, H.S. Kim, S. Ishikawa
This paper presents a noble appearance-based recognition approach of human motion and gestures of several peoplespsila several actions from uncalibrated camera by employing motion history-based representation. It employs the basic motion history image-based and the directional motion history image-based representation and then exploits these motion templates to recognize various motions having more than one motion direction or complex motion. Traditionally, the basic MHI approach used seven Hu moments for feature vector calculation. This paper analyzed the implementation of a better feature vector calculation for our directional approach. We tried with two different feature vector sets for Hu moment. Moreover, due to its better performance, we computed another feature vector set based on the top twelve orders of Zernike moments. Due to computational cost, we finally ignored to employ Zernike moments for the DMHI template for recognition. This new feature vector calculation approach can reduce the calculation and shows good recognition rate. Finally, this paper raised some future concerns of this method.
{"title":"Moment-based human motion recognition from the representation of DMHI templates","authors":"M. Ahad, T. Ogata, J. Tan, H.S. Kim, S. Ishikawa","doi":"10.1109/SICE.2008.4654722","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654722","url":null,"abstract":"This paper presents a noble appearance-based recognition approach of human motion and gestures of several peoplespsila several actions from uncalibrated camera by employing motion history-based representation. It employs the basic motion history image-based and the directional motion history image-based representation and then exploits these motion templates to recognize various motions having more than one motion direction or complex motion. Traditionally, the basic MHI approach used seven Hu moments for feature vector calculation. This paper analyzed the implementation of a better feature vector calculation for our directional approach. We tried with two different feature vector sets for Hu moment. Moreover, due to its better performance, we computed another feature vector set based on the top twelve orders of Zernike moments. Due to computational cost, we finally ignored to employ Zernike moments for the DMHI template for recognition. This new feature vector calculation approach can reduce the calculation and shows good recognition rate. Finally, this paper raised some future concerns of this method.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127677440","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654847
S. Fukami, T. Ogawa, H. Kanada
Network inversion solves inverse problems to estimate cause from result using a multilayer neural network. The original network inversion has been applied to usual multilayer neural network with real-valued inputs and outputs. The solution by a neural network with complex-valued inputs and outputs is necessary for the general inverse problems including complex numbers. The complex-valued network inversion method has been proposed to solve the inverse problems with complex numbers. In general, there is a problem attributable to the ill-posedness on the inverse problems. To solve the ill-posedness, the regularization is used to add some conditions on the solution. In this study, we propose to introduce the regularization to the complex-valued network inversion.
{"title":"Regularization for complex-valued network inversion","authors":"S. Fukami, T. Ogawa, H. Kanada","doi":"10.1109/SICE.2008.4654847","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654847","url":null,"abstract":"Network inversion solves inverse problems to estimate cause from result using a multilayer neural network. The original network inversion has been applied to usual multilayer neural network with real-valued inputs and outputs. The solution by a neural network with complex-valued inputs and outputs is necessary for the general inverse problems including complex numbers. The complex-valued network inversion method has been proposed to solve the inverse problems with complex numbers. In general, there is a problem attributable to the ill-posedness on the inverse problems. To solve the ill-posedness, the regularization is used to add some conditions on the solution. In this study, we propose to introduce the regularization to the complex-valued network inversion.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"377 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126291043","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654944
S. Aoki, K. Iwanami, K. Sakakibara
Many houses were destroyed in destructive earthquakes in the world. Then, control of seismic response of house is important for protection from destruction. In this paper, two story houses are focused on and oil dampers of some shapes are proposed. Oil damper is connected to the ceiling of the first story and the foundation. The spherical damper and the cylindrical damper with silicon oil are proposed. The effectiveness of the dampers is examined experimentally. It is concluded that the peak of the frequency response function of the first vibration mode decreases and the damping ration increases when the dampers are used. From simulation method using the analytical model, it is found that the maximum response decreases when the dampers are used.
{"title":"Passive control for seismic response of house with oil damper","authors":"S. Aoki, K. Iwanami, K. Sakakibara","doi":"10.1109/SICE.2008.4654944","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654944","url":null,"abstract":"Many houses were destroyed in destructive earthquakes in the world. Then, control of seismic response of house is important for protection from destruction. In this paper, two story houses are focused on and oil dampers of some shapes are proposed. Oil damper is connected to the ceiling of the first story and the foundation. The spherical damper and the cylindrical damper with silicon oil are proposed. The effectiveness of the dampers is examined experimentally. It is concluded that the peak of the frequency response function of the first vibration mode decreases and the damping ration increases when the dampers are used. From simulation method using the analytical model, it is found that the maximum response decreases when the dampers are used.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126316289","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654628
E. Nagai, K. Ito, T. Ohno
Efforts to effectively utilize field data over a wider area continue in the field of manufacturing systems. As part of these efforts, we focused on the computing environment for field devices, in which functionality can be expanded in a flexible manner for effective utilization of data. However, several issues remain to be resolved when new functionality is added to programs on various devices and multiple users operate the system concurrently. To resolve these issues, we introduce a computing environment for field devices called field overlay architecture (FOA) and describe the realization approach of the computing resource management of FOA.
{"title":"Computing resource management of Field Overlay Architecture for controllers","authors":"E. Nagai, K. Ito, T. Ohno","doi":"10.1109/SICE.2008.4654628","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654628","url":null,"abstract":"Efforts to effectively utilize field data over a wider area continue in the field of manufacturing systems. As part of these efforts, we focused on the computing environment for field devices, in which functionality can be expanded in a flexible manner for effective utilization of data. However, several issues remain to be resolved when new functionality is added to programs on various devices and multiple users operate the system concurrently. To resolve these issues, we introduce a computing environment for field devices called field overlay architecture (FOA) and describe the realization approach of the computing resource management of FOA.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126552070","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655154
M. Katoh
The present paper proposes a simple UV method derived from the Lagrange approach to obtain control parameters by the loop shaping approach based design policy. In addition, robust loop gain margins of the normalized IP control system were derived and confirmed for second-order CDR with OME in the case of a certain time constant and an uncertain time constant. These margins were designed in a continuous system and could be evaluated and approximated by a CAR using the matrix logarithm conversion for the sampled system approximated in the ADR. The results of numerical evaluation in partial lattice points of damping and uncertain time constant plane clarified the risk of VIP control. Based on space limitations, the results of simulation are not presented herein.
{"title":"Simple robust normalized IP control design for unknown input disturbance","authors":"M. Katoh","doi":"10.1109/SICE.2008.4655154","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655154","url":null,"abstract":"The present paper proposes a simple UV method derived from the Lagrange approach to obtain control parameters by the loop shaping approach based design policy. In addition, robust loop gain margins of the normalized IP control system were derived and confirmed for second-order CDR with OME in the case of a certain time constant and an uncertain time constant. These margins were designed in a continuous system and could be evaluated and approximated by a CAR using the matrix logarithm conversion for the sampled system approximated in the ADR. The results of numerical evaluation in partial lattice points of damping and uncertain time constant plane clarified the risk of VIP control. Based on space limitations, the results of simulation are not presented herein.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128061995","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655215
Bei Wang, T. Sugi, F. Kawana, Xingyu Wang, M. Nakamura
This paper introduced an expert knowledge-based automatic sleep stage determination system working on statistical signal processing. The main methods included two processes. One was expert knowledge base construction, which was developed in terms of probability density functions (pdfs) of parameters for each sleep stage. Here, the visual inspection by a clinician was utilized rather than stage scoring criteria for expert knowledge base construction. Another was multi-valued decision making of sleep stages, where stages were determined automatically according to the conditional probabilities. Totally, four subjects were participated, They are patients from Toranomon hospital, Japan. The automatic sleep stage determination results showed close agreements with the visual inspection in stage awake, light sleep stages and deep sleep stages. The constructed expert knowledge base reflected the distributions of characteristic parameters corresponding to each stage. The proposed method may have strong performance to be an assistant tool for clinicians enabling further inspection of sleep disorder cases.
{"title":"Multi-valued decision making of sleep stages determination based on expert knowledge","authors":"Bei Wang, T. Sugi, F. Kawana, Xingyu Wang, M. Nakamura","doi":"10.1109/SICE.2008.4655215","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655215","url":null,"abstract":"This paper introduced an expert knowledge-based automatic sleep stage determination system working on statistical signal processing. The main methods included two processes. One was expert knowledge base construction, which was developed in terms of probability density functions (pdfs) of parameters for each sleep stage. Here, the visual inspection by a clinician was utilized rather than stage scoring criteria for expert knowledge base construction. Another was multi-valued decision making of sleep stages, where stages were determined automatically according to the conditional probabilities. Totally, four subjects were participated, They are patients from Toranomon hospital, Japan. The automatic sleep stage determination results showed close agreements with the visual inspection in stage awake, light sleep stages and deep sleep stages. The constructed expert knowledge base reflected the distributions of characteristic parameters corresponding to each stage. The proposed method may have strong performance to be an assistant tool for clinicians enabling further inspection of sleep disorder cases.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683444","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655186
H. Kaieda, Y. Ueno
This algorithm analyzes the characteristics of control valves based on an operation journal. Each control valve is classified into a group with a high effect and a group with a low effect for each water manometer, and the operation control valve is selected based on the result of the classification.
{"title":"Development of advanced control system for waterworks","authors":"H. Kaieda, Y. Ueno","doi":"10.1109/SICE.2008.4655186","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655186","url":null,"abstract":"This algorithm analyzes the characteristics of control valves based on an operation journal. Each control valve is classified into a group with a high effect and a group with a low effect for each water manometer, and the operation control valve is selected based on the result of the classification.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122239938","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654729
A. Kaewpoonsuk, W. Petchmaneelumka, A. Rerkratn, S. Tammaruckwattana, V. Riewruja
A new technique for realizing the resolver-to-DC converter using the OTA-based inverse-sine function circuit is presented. The proposed converter comprises the demodulator, absolute detector, minimum detector, plusmn unity-gain amplifier, controlled signal logic circuit, and OTA-based inverse-sine function circuit. The output voltage is linearly proportional to the resolver angle with maximum absolute error of about 0.195%, which is less than the error from the conventional resolver-to-DC converter based on the similar OTA-based inverse-sine function circuit. PSPICE simulation and experimental results verifying the performances of the proposed circuit are in close agreement with the expected values.
{"title":"A novel resolver-to-DC converter based on OTA-based inverse-sine function circuit","authors":"A. Kaewpoonsuk, W. Petchmaneelumka, A. Rerkratn, S. Tammaruckwattana, V. Riewruja","doi":"10.1109/SICE.2008.4654729","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654729","url":null,"abstract":"A new technique for realizing the resolver-to-DC converter using the OTA-based inverse-sine function circuit is presented. The proposed converter comprises the demodulator, absolute detector, minimum detector, plusmn unity-gain amplifier, controlled signal logic circuit, and OTA-based inverse-sine function circuit. The output voltage is linearly proportional to the resolver angle with maximum absolute error of about 0.195%, which is less than the error from the conventional resolver-to-DC converter based on the similar OTA-based inverse-sine function circuit. PSPICE simulation and experimental results verifying the performances of the proposed circuit are in close agreement with the expected values.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121794334","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654713
Shoichi Koyama, T. Kurihara, S. Ando
We deal with the problem of direction and distance estimate of emission sources in 3-D space. We first introduce a partial differential equation (PDE) what we call the location constraint PDE (LC-PDE), which provides a necessary and sufficient description of wavefield generated by a source at direction n and distance R. To remove differentials, we integrate the LC-PDE in a finite rectangular area with complex sinusoidal weight functions. By using a well-known class of window function to eliminate the integral boundary terms, we show an exact finite set of algebraic equations can be obtained including n, R as the unknown variables and small number of 2-D discrete Fourier transform (DFT) components of wavefield as the measurements. Owing to frequency domain separation by DFT, it can be applied to multiple sources with sufficient angle difference. We examine this method with numerical simulation assuming noisy measurements and multiple source conditions.
{"title":"A direct algebraic method of instantaneous wave source localization","authors":"Shoichi Koyama, T. Kurihara, S. Ando","doi":"10.1109/SICE.2008.4654713","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654713","url":null,"abstract":"We deal with the problem of direction and distance estimate of emission sources in 3-D space. We first introduce a partial differential equation (PDE) what we call the location constraint PDE (LC-PDE), which provides a necessary and sufficient description of wavefield generated by a source at direction n and distance R. To remove differentials, we integrate the LC-PDE in a finite rectangular area with complex sinusoidal weight functions. By using a well-known class of window function to eliminate the integral boundary terms, we show an exact finite set of algebraic equations can be obtained including n, R as the unknown variables and small number of 2-D discrete Fourier transform (DFT) components of wavefield as the measurements. Owing to frequency domain separation by DFT, it can be applied to multiple sources with sufficient angle difference. We examine this method with numerical simulation assuming noisy measurements and multiple source conditions.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131367269","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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