Pub Date : 2010-10-01DOI: 10.1109/ISOT.2010.5687365
A. Rostami, H. Rasooli, A. Ghanbari, S. Zabihi, F. Janabi-Sharifi
The electronic conductance at zero temperature through a quantum wire with side-attached asymmetric quantum dot-molecules (as a scatter system) is theoretically studied using the non-interacting Anderson tunneling Hamiltonian method. We show that the asymmetric configuration of QD-scatter system strongly impresses the amplitude and spectrum of quantum wire nanostructure transmission characteristics. It is shown that whenever the balanced number of chains-quantum dots in one molecule is substituted by unbalanced scheme, the number of forbidden mini-bands in quantum wire conductance increases to the sum of the number of quantum dots in two chains and thus the QW-nanostructure electronic conductance contains rich spectral properties due to appearance of the new anti-resonance and resonance points in spectrum. Considering the suitable inner gap between QD-chains in one molecule or outer gap between QD-molecules, can strengthen the amplitude of new resonant peaks in QW conductance spectrum. The proposed asymmetric-QD scatter system idea in this paper opens a new insight on designing quantum wire nanostructures for given electronic conductance.
{"title":"Quantum-wire conductance manipulating by asymmetric quantum dot-molecules","authors":"A. Rostami, H. Rasooli, A. Ghanbari, S. Zabihi, F. Janabi-Sharifi","doi":"10.1109/ISOT.2010.5687365","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687365","url":null,"abstract":"The electronic conductance at zero temperature through a quantum wire with side-attached asymmetric quantum dot-molecules (as a scatter system) is theoretically studied using the non-interacting Anderson tunneling Hamiltonian method. We show that the asymmetric configuration of QD-scatter system strongly impresses the amplitude and spectrum of quantum wire nanostructure transmission characteristics. It is shown that whenever the balanced number of chains-quantum dots in one molecule is substituted by unbalanced scheme, the number of forbidden mini-bands in quantum wire conductance increases to the sum of the number of quantum dots in two chains and thus the QW-nanostructure electronic conductance contains rich spectral properties due to appearance of the new anti-resonance and resonance points in spectrum. Considering the suitable inner gap between QD-chains in one molecule or outer gap between QD-molecules, can strengthen the amplitude of new resonant peaks in QW conductance spectrum. The proposed asymmetric-QD scatter system idea in this paper opens a new insight on designing quantum wire nanostructures for given electronic conductance.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"231 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82751483","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687314
Y. H. Huang, S. Hung, Y. Chen, L. Liu, S. Ng
Phase measurement is a key step in quantitative optical metrology. While phase shifting technique is widely applied for accurate and reliable static or semi-static phase measurement, Fourier and wavelet transforms are often employed for high speed dynamic phase measurement. In our previous papers, the authors had proposed an alternative clustering method for dynamic phase measurement. The proposed method utilizes the phase clustering effect and the prior knowledge of the speckle field to extract the deformed phase map from one single deformed speckle pattern. The clustering method, however, may fail at area with abundant noise and large phase gradient. In this paper, we improve the clustering method by incorporating an advanced phase filtering methods for wrapped phase filtering. The reconstructed wrapped phase map is with very good quality and ready for phase unwrapping with any simple unwrapping algorithms. The basic ideas and the implementation approach will be described in details. Several examples based on shearography and holographic interferometry will be presented. Comparisons between the proposed method and phase shifting method will be made. The results demonstrate the accuracy and robustness of the integrated dynamic phase extraction method. The integrated phase retrieval method proposed here has great potential to simplify optical setup for dynamic phase measurement.
{"title":"Dynamic phase measurement by clustering method","authors":"Y. H. Huang, S. Hung, Y. Chen, L. Liu, S. Ng","doi":"10.1109/ISOT.2010.5687314","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687314","url":null,"abstract":"Phase measurement is a key step in quantitative optical metrology. While phase shifting technique is widely applied for accurate and reliable static or semi-static phase measurement, Fourier and wavelet transforms are often employed for high speed dynamic phase measurement. In our previous papers, the authors had proposed an alternative clustering method for dynamic phase measurement. The proposed method utilizes the phase clustering effect and the prior knowledge of the speckle field to extract the deformed phase map from one single deformed speckle pattern. The clustering method, however, may fail at area with abundant noise and large phase gradient. In this paper, we improve the clustering method by incorporating an advanced phase filtering methods for wrapped phase filtering. The reconstructed wrapped phase map is with very good quality and ready for phase unwrapping with any simple unwrapping algorithms. The basic ideas and the implementation approach will be described in details. Several examples based on shearography and holographic interferometry will be presented. Comparisons between the proposed method and phase shifting method will be made. The results demonstrate the accuracy and robustness of the integrated dynamic phase extraction method. The integrated phase retrieval method proposed here has great potential to simplify optical setup for dynamic phase measurement.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"35 2 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82794227","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687370
A. Rostami, A. Ghanbari, H. Soofi, F. Janabi-Sharifi
In this paper a new strategy to design large mode area photonic crystal fibers with relatively small hole pitches is presented and employed to design fibers with effective mode areas larger than 70µm2 at λ=1.55µm with hole pitch Λ=2.5µm. The idea is based on insertion of circular defect holes in the core area of an HF7 fiber. It is shown that by precisely adjusting the locations and the diameters of these defect holes, field distribution alters in a way that leads to a larger effective mode area than HF7 fiber itself. The validation of the proposed design is carried out by adopting an efficient full-vectorial finite difference frequency domain method with perfectly matched layers for accurate characterization of photonic crystal fibers. Dispersion characteristics of the designed fibers is also investigated and it is shown that the defect insertion has strong dispersion flattening and lowering attitude that can significantly ease the fiber design task for optical communication transmission systems.
{"title":"Enlarging effective mode area of photonic crystal fibers using defected core structures","authors":"A. Rostami, A. Ghanbari, H. Soofi, F. Janabi-Sharifi","doi":"10.1109/ISOT.2010.5687370","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687370","url":null,"abstract":"In this paper a new strategy to design large mode area photonic crystal fibers with relatively small hole pitches is presented and employed to design fibers with effective mode areas larger than 70µm2 at λ=1.55µm with hole pitch Λ=2.5µm. The idea is based on insertion of circular defect holes in the core area of an HF7 fiber. It is shown that by precisely adjusting the locations and the diameters of these defect holes, field distribution alters in a way that leads to a larger effective mode area than HF7 fiber itself. The validation of the proposed design is carried out by adopting an efficient full-vectorial finite difference frequency domain method with perfectly matched layers for accurate characterization of photonic crystal fibers. Dispersion characteristics of the designed fibers is also investigated and it is shown that the defect insertion has strong dispersion flattening and lowering attitude that can significantly ease the fiber design task for optical communication transmission systems.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"37 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74836152","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687317
Amin Dehghani, Aboozar Moradi, R. Jafari
In this paper we present a numerical three dimensional (3D) simulation of transient heat transfer process in the human eye. A finite element method is applied to obtain the solution of a boundary value problem for a 3D transient heat transfer model in the human eye. The human eye is modeled as a com position of several homogeneous regions. The Ritz method in the finite element method is used for solving heat differential equ ation. Applying the boundary conditions, the heat radiation condition and the Robin condition on the cornea surface of the eye and on the outer part of sclera are used, respectively. Simulation results of two and three dimensional models are compared.
{"title":"3D Simulation of transient heat transfer in human eye using finite element method","authors":"Amin Dehghani, Aboozar Moradi, R. Jafari","doi":"10.1109/ISOT.2010.5687317","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687317","url":null,"abstract":"In this paper we present a numerical three dimensional (3D) simulation of transient heat transfer process in the human eye. A finite element method is applied to obtain the solution of a boundary value problem for a 3D transient heat transfer model in the human eye. The human eye is modeled as a com position of several homogeneous regions. The Ritz method in the finite element method is used for solving heat differential equ ation. Applying the boundary conditions, the heat radiation condition and the Robin condition on the cornea surface of the eye and on the outer part of sclera are used, respectively. Simulation results of two and three dimensional models are compared.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"10 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78908367","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687312
A. Assa, F. Janabi-Sharifi, B. Moshiri, I. Mantegh
Accurate visual servoing depends extensively on the quality of pose estimation. Sensor fusion provides a solution to improve accuracy and robustness of pose estimation. This paper introduces sensor fusion methods using two cameras to reduce the inaccuracy of pose estimation. Simulation results are reported to verify the efficiency of the proposed methods.
{"title":"A data fusion approach for multi-camera based visual servoing","authors":"A. Assa, F. Janabi-Sharifi, B. Moshiri, I. Mantegh","doi":"10.1109/ISOT.2010.5687312","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687312","url":null,"abstract":"Accurate visual servoing depends extensively on the quality of pose estimation. Sensor fusion provides a solution to improve accuracy and robustness of pose estimation. This paper introduces sensor fusion methods using two cameras to reduce the inaccuracy of pose estimation. Simulation results are reported to verify the efficiency of the proposed methods.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"74 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86170071","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687356
Jung-Gon Kim, N. Park
This paper presents an effective control algorithm to avoid physical contact between the disk and the solid immersion lens (SIL) in near-field (NF) storage systems under dynamic operating conditions such as repeatable and nonrepeatable dist urbances due to disk vibrations and external shocks. In particular, the air-gap distance between the disk and the SIL in the NFR system is less than 50 nm. Therefore, the disk and the SIL must be protected to detect the stable gap error signal (GES) during continuous control operation. In this manuscript, we propose an improved air-gap control system using a narrow-ban d disturbance filter (NBDF), which is an effective control method for enhancing the performance of the system for the rejection of repeatable and nonrepeatable disturbances In addition, we demonstrate an improved air-gap controller using a double disturbance observer (DOB) to improve the anti-shock control performance under external shocks. The double DOB uses a binomial Q filter without additional sensors, which keeps the production cost low. Finally, to evaluate the robustness of the control system with the double DOB, we apply a design method that varies the bandwidth of the Q filter.
{"title":"Compensation of repeatable and nonrepeatable disturbances in high NA SIL-based near-field storage systems","authors":"Jung-Gon Kim, N. Park","doi":"10.1109/ISOT.2010.5687356","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687356","url":null,"abstract":"This paper presents an effective control algorithm to avoid physical contact between the disk and the solid immersion lens (SIL) in near-field (NF) storage systems under dynamic operating conditions such as repeatable and nonrepeatable dist urbances due to disk vibrations and external shocks. In particular, the air-gap distance between the disk and the SIL in the NFR system is less than 50 nm. Therefore, the disk and the SIL must be protected to detect the stable gap error signal (GES) during continuous control operation. In this manuscript, we propose an improved air-gap control system using a narrow-ban d disturbance filter (NBDF), which is an effective control method for enhancing the performance of the system for the rejection of repeatable and nonrepeatable disturbances In addition, we demonstrate an improved air-gap controller using a double disturbance observer (DOB) to improve the anti-shock control performance under external shocks. The double DOB uses a binomial Q filter without additional sensors, which keeps the production cost low. Finally, to evaluate the robustness of the control system with the double DOB, we apply a design method that varies the bandwidth of the Q filter.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"198 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91530056","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687350
Yu Qi-feng, Fu Si-hua, Jiang Guang-wen, Lei Zhi-hui
Measurement for ship deformation has been a difficult problem for the global ship building industry and navy equipment rese arches. So far, an effective and mature method to measure the 3-D position and attitude deformation in a long term still remains unavailable. An innovative pose-relay videometric is proposed, and then a pose-relay video-metrics measurement system for ship defo rmation is developed on the basis of principle research and experimental validations. It offers solutions to key technical problems of infrared marker facture and high-precision detection and multi-cameras synchronization and control, etc. Accordingly, sea trials were carried out, and reasonable, long-time, and continuous 3-D data of position and attitude deformations between the ship head and the stern were acquired. The experiments have implied the great applicability of the proposed method in the deformation measurement and long-term monitoring of ships and similar large structures.
{"title":"Pose-relay videometric method and ship deformation measurement system with camera-series","authors":"Yu Qi-feng, Fu Si-hua, Jiang Guang-wen, Lei Zhi-hui","doi":"10.1109/ISOT.2010.5687350","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687350","url":null,"abstract":"Measurement for ship deformation has been a difficult problem for the global ship building industry and navy equipment rese arches. So far, an effective and mature method to measure the 3-D position and attitude deformation in a long term still remains unavailable. An innovative pose-relay videometric is proposed, and then a pose-relay video-metrics measurement system for ship defo rmation is developed on the basis of principle research and experimental validations. It offers solutions to key technical problems of infrared marker facture and high-precision detection and multi-cameras synchronization and control, etc. Accordingly, sea trials were carried out, and reasonable, long-time, and continuous 3-D data of position and attitude deformations between the ship head and the stern were acquired. The experiments have implied the great applicability of the proposed method in the deformation measurement and long-term monitoring of ships and similar large structures.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"44 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82371573","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687359
MyoungKi Ahn, Taejoong Kim, Youngduk Kim, D. Gweon
In this paper, we propose new SI method, the cross SI method that improves the lateral resolution and the image acquisition speed. The cross SI pattern is generated by using the 2-D diffractive grating. The acquisition of a total of 6 raw images shortens the image acquisition time. The cross structured illumination confocal microscope (CSICM) is combined with the cross SI pattern generation optics and the line scanning confocal microscope. Performances of the conventional and the cross SI are compared by the analysis of the modulation transfer function. As a result, the cro ss SI method shows similar resolution to conventional SI method. The CSICM has the two times enhanced lateral resolution than the conventional microscope, the optical sectioning ability and the fast image acquisition speed.
{"title":"Line scanning confocal microscopy with the use of cross structured illumination","authors":"MyoungKi Ahn, Taejoong Kim, Youngduk Kim, D. Gweon","doi":"10.1109/ISOT.2010.5687359","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687359","url":null,"abstract":"In this paper, we propose new SI method, the cross SI method that improves the lateral resolution and the image acquisition speed. The cross SI pattern is generated by using the 2-D diffractive grating. The acquisition of a total of 6 raw images shortens the image acquisition time. The cross structured illumination confocal microscope (CSICM) is combined with the cross SI pattern generation optics and the line scanning confocal microscope. Performances of the conventional and the cross SI are compared by the analysis of the modulation transfer function. As a result, the cro ss SI method shows similar resolution to conventional SI method. The CSICM has the two times enhanced lateral resolution than the conventional microscope, the optical sectioning ability and the fast image acquisition speed.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79800580","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687377
Vincent Chan, Howard Huang
In this tutorial we will have a brief overview of the basic methods and applications of optical metrology. We will discuss its uses, limitations and how it is typically used in industry. The following topics will be covered: & Background theory & Types of measurements & GD & T & Types of sensors & Limitations of optical measurements & Industrial applications This tutorial is best suited to engineers new to optical metrology.
在本教程中,我们将简要介绍光学计量的基本方法和应用。我们将讨论它的用途、限制以及它在工业中的典型应用。将涵盖以下主题:&背景理论&测量类型& GD & T &传感器类型&光学测量的局限性&工业应用本教程最适合刚接触光学计量的工程师。
{"title":"Tutorial B: Introduction to optical metrology","authors":"Vincent Chan, Howard Huang","doi":"10.1109/ISOT.2010.5687377","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687377","url":null,"abstract":"In this tutorial we will have a brief overview of the basic methods and applications of optical metrology. We will discuss its uses, limitations and how it is typically used in industry. The following topics will be covered: & Background theory & Types of measurements & GD & T & Types of sensors & Limitations of optical measurements & Industrial applications This tutorial is best suited to engineers new to optical metrology.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"17 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76622655","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687325
N. Nakazawa, Ilhwan Kim, Yasuaki Shibamiya, T. Matsui, T. Iwata, Kou Yamada
This paper describes the non-contact Man-Machine in terface based on the face orientations. The real-time image of the operator's face was observed by the USB camera and the changes in the darkness area of the both nostrils were utilized for recognition of the face orientations. When the operator faced to up and downward, the darkness areas of both nostrils were increased and decreased, respectively. On the other hand, the difference between two nostril areas could be caused in cases where the face was turn to the side. Here, these characteristics were reflected to the recognition of the face orientations. The developed interface was applied for the operation of the electrical wheelchair.
{"title":"Development of an interface based on face orientations for operation of auto-wheelchair","authors":"N. Nakazawa, Ilhwan Kim, Yasuaki Shibamiya, T. Matsui, T. Iwata, Kou Yamada","doi":"10.1109/ISOT.2010.5687325","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687325","url":null,"abstract":"This paper describes the non-contact Man-Machine in terface based on the face orientations. The real-time image of the operator's face was observed by the USB camera and the changes in the darkness area of the both nostrils were utilized for recognition of the face orientations. When the operator faced to up and downward, the darkness areas of both nostrils were increased and decreased, respectively. On the other hand, the difference between two nostril areas could be caused in cases where the face was turn to the side. Here, these characteristics were reflected to the recognition of the face orientations. The developed interface was applied for the operation of the electrical wheelchair.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73246600","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}