Pub Date : 2015-10-01DOI: 10.1109/GCCE.2015.7398615
S. Nishifuji, Yuya Sugita, H. Hirano
Brain machine interfaces (BMIs) provide one of the important means to interact with external world for a patient who lost motor function by using brain electrical signals such as scalp electroencephalogram (EEG). The main function of BMIs is to detect, analyze and classify the modulation of EEG according to a user's intent and to decode it to demonstrate to others. Most of conventional BMIs with relatively high speed and high classification accuracy have a requisite that a user can open and move his/her eyes toward a target corresponding to user's intent and gaze at it. Locked-in patients, who have lost almost all motor function including facial muscle, cannot control the eye-movement as well as gaze. The present study aimed at developing a BMI which was independent of the eye-movement and eye-gaze as a final goal. In this paper, we discuss the feasibility of binary class of BMI available with eyes-closed condition using a recent our newly observation that the steady-state visual evoked potential (SSVEP) could be modulated by performing the mental tasks even in the eyes-close state. Temporal evolution of the modulation of SSVEP was investigated using the amplitude of SSVEP and Kullback-Leibler (KL) divergence. The amplitudes of fundamental SSVEP (10 Hz) averaged across 11 participants showed significant difference between the mental focusing task and relaxed runs from the onset of the flicker stimuli with the frequency of 10 Hz and the intensity of 5 lx, whereas those of the second harmonic SSVEP (20 Hz) gave only small difference without statistical significance. For the image recalling task, the amplitude differences between the fundamental SSVEPs in the task and relaxed conditions did not show significant difference, whereas the amplitude differences of the second harmonic SSVEP showed the main effect of the image recall task. The KL divergences for the fundamental SSVEP amplitude showed large differences at the onset of flicker stimuli and gradual decrease with time at P4 and O2 for the mental focus task, yet no such characteristic evolution was not seen in KL divergence for the second harmonic SSVEP. On the other hand, the KL divergences during the image recalling were increased with time for both the fundamental and second harmonic SSVEPs at most of the electrode sites. The classification accuracies of the proposed BMI exceeded 75 % in average across the subjects for both tasks using Fisher's linear discriminant analysis.
{"title":"Brain machine interface available in eyes-closed state in terms of event-related desynchronization and synchronization during a mental task","authors":"S. Nishifuji, Yuya Sugita, H. Hirano","doi":"10.1109/GCCE.2015.7398615","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398615","url":null,"abstract":"Brain machine interfaces (BMIs) provide one of the important means to interact with external world for a patient who lost motor function by using brain electrical signals such as scalp electroencephalogram (EEG). The main function of BMIs is to detect, analyze and classify the modulation of EEG according to a user's intent and to decode it to demonstrate to others. Most of conventional BMIs with relatively high speed and high classification accuracy have a requisite that a user can open and move his/her eyes toward a target corresponding to user's intent and gaze at it. Locked-in patients, who have lost almost all motor function including facial muscle, cannot control the eye-movement as well as gaze. The present study aimed at developing a BMI which was independent of the eye-movement and eye-gaze as a final goal. In this paper, we discuss the feasibility of binary class of BMI available with eyes-closed condition using a recent our newly observation that the steady-state visual evoked potential (SSVEP) could be modulated by performing the mental tasks even in the eyes-close state. Temporal evolution of the modulation of SSVEP was investigated using the amplitude of SSVEP and Kullback-Leibler (KL) divergence. The amplitudes of fundamental SSVEP (10 Hz) averaged across 11 participants showed significant difference between the mental focusing task and relaxed runs from the onset of the flicker stimuli with the frequency of 10 Hz and the intensity of 5 lx, whereas those of the second harmonic SSVEP (20 Hz) gave only small difference without statistical significance. For the image recalling task, the amplitude differences between the fundamental SSVEPs in the task and relaxed conditions did not show significant difference, whereas the amplitude differences of the second harmonic SSVEP showed the main effect of the image recall task. The KL divergences for the fundamental SSVEP amplitude showed large differences at the onset of flicker stimuli and gradual decrease with time at P4 and O2 for the mental focus task, yet no such characteristic evolution was not seen in KL divergence for the second harmonic SSVEP. On the other hand, the KL divergences during the image recalling were increased with time for both the fundamental and second harmonic SSVEPs at most of the electrode sites. The classification accuracies of the proposed BMI exceeded 75 % in average across the subjects for both tasks using Fisher's linear discriminant analysis.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124169058","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}
Enormous information in the Internet, especially in the health care field, makes users cannot get the information they want in time. To let medical staffs, even patients and users, absorb and understand information quickly, data visualization converts information to graphic style. However, some treemap algorithms are not suitable for displaying on certain conditions. This study proposes an improved algorithm, Innovated Squarified Treemap (iS qT), to process the information by data visualization. A comparison shows that our iS qT algorithm provides better performance than original Squarified Treemap algorithm. We expect this paper to facilitate the information be read easier by our iS qT approach in the rehabilitation field.
{"title":"A visualization by innovated squarified treemap for somatosensory data analysis","authors":"Yen-Jung Lai, Po-Hsun Cheng, Ling-Wei Lu, Chi-Run Rau","doi":"10.1109/GCCE.2015.7398719","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398719","url":null,"abstract":"Enormous information in the Internet, especially in the health care field, makes users cannot get the information they want in time. To let medical staffs, even patients and users, absorb and understand information quickly, data visualization converts information to graphic style. However, some treemap algorithms are not suitable for displaying on certain conditions. This study proposes an improved algorithm, Innovated Squarified Treemap (iS qT), to process the information by data visualization. A comparison shows that our iS qT algorithm provides better performance than original Squarified Treemap algorithm. We expect this paper to facilitate the information be read easier by our iS qT approach in the rehabilitation field.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114492718","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398570
S. D. You
This paper proposes a simplified soft demapper for DVB-T2 (Second Generation Digital Video Broadcasting-Terrestrial) receiver based on conventional 1-D demapper. Simulation results show that the simplified 1-D demapper has 1 to 2 dB degradation for various channels. When compared with the 2-D soft demapper, the simplified 1-D approach offers a complexity reduction by more than ten-fold, and is a possible alternative if the receiver is to be implemented in software.
{"title":"Simplifying soft demapper design for software DVB-T2 channel decoder","authors":"S. D. You","doi":"10.1109/GCCE.2015.7398570","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398570","url":null,"abstract":"This paper proposes a simplified soft demapper for DVB-T2 (Second Generation Digital Video Broadcasting-Terrestrial) receiver based on conventional 1-D demapper. Simulation results show that the simplified 1-D demapper has 1 to 2 dB degradation for various channels. When compared with the 2-D soft demapper, the simplified 1-D approach offers a complexity reduction by more than ten-fold, and is a possible alternative if the receiver is to be implemented in software.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114914037","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398536
Y. Kanetsuki, R. Thawonmas, S. Nakata
We develop a combination of evolution strategy (ES) and fuzzy control (FC) to optimize and simplify an existing dynamic scripting (DS) AI called CodeMonkey for fighting game FightingICE, recently used as a platform in international game AI competitions. One of the major issues in DS is that the user has to decide a lot of parameters whose process is not simple. In addition, a complex user-defined-action-rule set for DS is required. The purpose of our work is to automate this troublesome process and improve the performance of the DS technique. We apply (1+1)-ES with the one-fifth rule for tuning parameters and FC for easing definition of additional action rules. We verify our AI's performance in FightingICE. The test results show that although the proposed AI does not require complex parameter and rule setting by the user, it defeats the original CodeMonkey.
{"title":"Optimization and simplification of dynamic scripting with evolution strategy and fuzzy control in a fighting game AI","authors":"Y. Kanetsuki, R. Thawonmas, S. Nakata","doi":"10.1109/GCCE.2015.7398536","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398536","url":null,"abstract":"We develop a combination of evolution strategy (ES) and fuzzy control (FC) to optimize and simplify an existing dynamic scripting (DS) AI called CodeMonkey for fighting game FightingICE, recently used as a platform in international game AI competitions. One of the major issues in DS is that the user has to decide a lot of parameters whose process is not simple. In addition, a complex user-defined-action-rule set for DS is required. The purpose of our work is to automate this troublesome process and improve the performance of the DS technique. We apply (1+1)-ES with the one-fifth rule for tuning parameters and FC for easing definition of additional action rules. We verify our AI's performance in FightingICE. The test results show that although the proposed AI does not require complex parameter and rule setting by the user, it defeats the original CodeMonkey.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114919067","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398582
Naoki Nampei, T. Onishi, Hisayoshi Sugiyama
An example system of pulsed power network is demonstrated. This scheme is already proposed in our papers. In the proposed network, simultaneous power transmissions among specified power sources and consumers with different intensities are possible through shared power lines. This advantage is demonstrated with two power sources and two consumers operating in the pulsed power network.
{"title":"Simultaneous power transmissions among specified sources and consumers through shared power lines","authors":"Naoki Nampei, T. Onishi, Hisayoshi Sugiyama","doi":"10.1109/GCCE.2015.7398582","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398582","url":null,"abstract":"An example system of pulsed power network is demonstrated. This scheme is already proposed in our papers. In the proposed network, simultaneous power transmissions among specified power sources and consumers with different intensities are possible through shared power lines. This advantage is demonstrated with two power sources and two consumers operating in the pulsed power network.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115050100","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398655
Taira Onoguchi, Y. Chisaki
The Great East Japan Earthquake revealed the Importance of a public address system with outdoor loudspeakers for emergency announcements and the difficulty of its intelligibility. To achieve a public address system with sufficient intelligibility for residents, one important factor is to suppress sound overlap caused by the simultaneous emission of other loudspeakers. In this paper, the controller of an emission timing control method is built with a single board computer. Functions to increase reliability of a public address system are also implemented to the controller.
{"title":"Emission timing controller by single board computer for public address system","authors":"Taira Onoguchi, Y. Chisaki","doi":"10.1109/GCCE.2015.7398655","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398655","url":null,"abstract":"The Great East Japan Earthquake revealed the Importance of a public address system with outdoor loudspeakers for emergency announcements and the difficulty of its intelligibility. To achieve a public address system with sufficient intelligibility for residents, one important factor is to suppress sound overlap caused by the simultaneous emission of other loudspeakers. In this paper, the controller of an emission timing control method is built with a single board computer. Functions to increase reliability of a public address system are also implemented to the controller.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116401775","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398662
M. Shimizu, H. Kariya, T. Goto, S. Hirano, M. Sakurai
Super-resolution techniques have been widely used in fields such as television, aerospace imaging, and medical imaging. In medical imaging, X-rays commonly have low resolution and a significant amount of noise, because radiation levels are minimized to maintain patient safety. In this paper, we propose a novel super-resolution method for X-ray images, and a novel measurement algorithm for treatment of rheumatoid arthritis (RA) using X-ray images generated by our proposed super-resolution method. Experimental results show that high quality super-resolution images are obtained, and our proposed measurement algorithm is effective for RA medical examinations.
{"title":"Super-resolution for X-ray images","authors":"M. Shimizu, H. Kariya, T. Goto, S. Hirano, M. Sakurai","doi":"10.1109/GCCE.2015.7398662","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398662","url":null,"abstract":"Super-resolution techniques have been widely used in fields such as television, aerospace imaging, and medical imaging. In medical imaging, X-rays commonly have low resolution and a significant amount of noise, because radiation levels are minimized to maintain patient safety. In this paper, we propose a novel super-resolution method for X-ray images, and a novel measurement algorithm for treatment of rheumatoid arthritis (RA) using X-ray images generated by our proposed super-resolution method. Experimental results show that high quality super-resolution images are obtained, and our proposed measurement algorithm is effective for RA medical examinations.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117209047","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398702
K. S. Sandha, B. Raj
In the recent times MWCNT bundle interconnects at global interconnect level, has been considered as an alternative to the conventional copper interconnects. In this paper, the influence of temperature on mean free path (MFP) of MWCNT bundle as interconnects is presented. The temperature dependent MFP is used to evaluate the impedance parameters of MWCNT bundle for nanoscaled technology nodes. Further, a similar analysis is performed for copper interconnects to compare the results with MWCNT bundle. Results show that MWCNT interconnects offered lesser resistances compared to copper interconnects for temperature ranging from 200K-450K at 32nm, 22nm and 16nm technology nodes.
{"title":"Thermally aware modeling and performance for MWCNT bundle as VLSI interconnects for high performance integrated circuits","authors":"K. S. Sandha, B. Raj","doi":"10.1109/GCCE.2015.7398702","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398702","url":null,"abstract":"In the recent times MWCNT bundle interconnects at global interconnect level, has been considered as an alternative to the conventional copper interconnects. In this paper, the influence of temperature on mean free path (MFP) of MWCNT bundle as interconnects is presented. The temperature dependent MFP is used to evaluate the impedance parameters of MWCNT bundle for nanoscaled technology nodes. Further, a similar analysis is performed for copper interconnects to compare the results with MWCNT bundle. Results show that MWCNT interconnects offered lesser resistances compared to copper interconnects for temperature ranging from 200K-450K at 32nm, 22nm and 16nm technology nodes.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124033997","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398691
M. Yoshizawa, N. Sugita, M. Abe, Kazuma Obara, A. Tanaka, N. Homma, T. Yambe
It is notable that the photoplethysmogram can be extracted by processing the green component of a video signal of a human body taken with a video camera. This is an affordable, remote and non-contact measurement method to obtain not only heart rate but also blood pressure information. In this study, a tool for obtaining the pulse transit time which correlates with blood pressure has been developed. It is expected that this tool can be used to evaluate plural persons' autonomic function using only one video camera.
{"title":"Remote monitoring of autonomic nervous system indices using video cameras","authors":"M. Yoshizawa, N. Sugita, M. Abe, Kazuma Obara, A. Tanaka, N. Homma, T. Yambe","doi":"10.1109/GCCE.2015.7398691","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398691","url":null,"abstract":"It is notable that the photoplethysmogram can be extracted by processing the green component of a video signal of a human body taken with a video camera. This is an affordable, remote and non-contact measurement method to obtain not only heart rate but also blood pressure information. In this study, a tool for obtaining the pulse transit time which correlates with blood pressure has been developed. It is expected that this tool can be used to evaluate plural persons' autonomic function using only one video camera.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124082601","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 : 2015-10-01DOI: 10.1109/GCCE.2015.7398611
Chi-Huang Hung, Ying-Wen Bai, Hsu-Yao Wu
In this paper, we design a wearable appliance gesture remote controller that is composed of two parts: a hand gesture recognition belt and a receiver unit. The controller uses both an accelerometer and a gyroscope to discern hand gestures and a Kalman filter to reduce some jitter noise such as an individual's hands that are trembling slightly. The receiver unit can decode the received information and echo the corresponding action. This design incorporates an LED array lamp as the home appliance used to control the on/off function and the dimming function.
{"title":"Home appliance control by a hand gesture recognition belt in LED array lamp case","authors":"Chi-Huang Hung, Ying-Wen Bai, Hsu-Yao Wu","doi":"10.1109/GCCE.2015.7398611","DOIUrl":"https://doi.org/10.1109/GCCE.2015.7398611","url":null,"abstract":"In this paper, we design a wearable appliance gesture remote controller that is composed of two parts: a hand gesture recognition belt and a receiver unit. The controller uses both an accelerometer and a gyroscope to discern hand gestures and a Kalman filter to reduce some jitter noise such as an individual's hands that are trembling slightly. The receiver unit can decode the received information and echo the corresponding action. This design incorporates an LED array lamp as the home appliance used to control the on/off function and the dimming function.","PeriodicalId":363743,"journal":{"name":"2015 IEEE 4th Global Conference on Consumer Electronics (GCCE)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124732491","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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