Pub Date : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031811
Yongkwi Lee, H. Shin, Jun Jo, Y. Lee
In this work, we address a new photoplethysmography (PPG) signal sensing method using a wristwatch-type PPG array sensor. According to the development of the ubiquitous health care system, the many types of medical equipment and treatments have been improved. In conventional PPG signal sensing approaches, the finger-type PPG probe has been used. However, the finger-type PPG probe requires tight fitting that restricts movement, meaning that patients should endure dome discomfort while wearing it. To solve this problem, we propose a novel PPG array sensor module with a wristwatch-type design. The proposed module measures the PPG signal from the radial artery and the ulnar artery of the wrist, whereas previous methods obtained it from capillaries of the skin. Moreover, we placed photo transistors (ST-23G) and infrared emitting diodes (EL-23G) in an array form to improve the PPG signal sensitivity and level of accuracy. Various arrays are considered for optimization, and a conductive fiber wristband is employed to reduce external noise. In the experiments, the proposed module is assessed and compared with the commercial product TSD200 by Biopac, Ltd.
{"title":"Development of a wristwatch-type PPG array sensor module","authors":"Yongkwi Lee, H. Shin, Jun Jo, Y. Lee","doi":"10.1109/ICCE-BERLIN.2011.6031811","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031811","url":null,"abstract":"In this work, we address a new photoplethysmography (PPG) signal sensing method using a wristwatch-type PPG array sensor. According to the development of the ubiquitous health care system, the many types of medical equipment and treatments have been improved. In conventional PPG signal sensing approaches, the finger-type PPG probe has been used. However, the finger-type PPG probe requires tight fitting that restricts movement, meaning that patients should endure dome discomfort while wearing it. To solve this problem, we propose a novel PPG array sensor module with a wristwatch-type design. The proposed module measures the PPG signal from the radial artery and the ulnar artery of the wrist, whereas previous methods obtained it from capillaries of the skin. Moreover, we placed photo transistors (ST-23G) and infrared emitting diodes (EL-23G) in an array form to improve the PPG signal sensitivity and level of accuracy. Various arrays are considered for optimization, and a conductive fiber wristband is employed to reduce external noise. In the experiments, the proposed module is assessed and compared with the commercial product TSD200 by Biopac, Ltd.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129723555","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031879
J. P. García-Ortiz, C. Martin, V. Ruiz, J. J. Sánchez-Hernández, I. García, D. Muller
This paper1 presents a new efficient and highly scalable open-source development of a JPIP server, financed by the European Space Agency, that allows the streaming of large volumes of JPEG 2000 imagery. Although its was mainly designed with the aim to serve the Sun data generated by the recently launched NASA SDO observatory, its features can be very interesting for many other remote image/video browsing contexts. The results show that it is currently one of the best implementations of JPIP server, both in terms of demanded computing resources and quality of the reconstructions in the clients.
{"title":"Efficient and scalable open-source JPIP server for streaming of large volumes of image data","authors":"J. P. García-Ortiz, C. Martin, V. Ruiz, J. J. Sánchez-Hernández, I. García, D. Muller","doi":"10.1109/ICCE-BERLIN.2011.6031879","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031879","url":null,"abstract":"This paper1 presents a new efficient and highly scalable open-source development of a JPIP server, financed by the European Space Agency, that allows the streaming of large volumes of JPEG 2000 imagery. Although its was mainly designed with the aim to serve the Sun data generated by the recently launched NASA SDO observatory, its features can be very interesting for many other remote image/video browsing contexts. The results show that it is currently one of the best implementations of JPIP server, both in terms of demanded computing resources and quality of the reconstructions in the clients.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128555793","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031810
T. Mori, T. Nonaka, T. Hase
The authors have already proposed a method of generating a GUI display screen using a genetic algorithm. This paper describes a method of reducing the processing time while achieving the necessary processing. To speed up the processing, three reduction measures are proposed: (1) reduction of the number of times the GA processing algorithm is executed, (2) reduction of the number of generations by means of promoting evolution and selection, and (3) reduction of the time per generation needed for the process. As implemented results, the processing time, which was formerly 60 seconds or longer, was reduced to two seconds or less, or in other words, we could manage to reduce the time needed by all the processing to approximately one thirtieth.
{"title":"Faster processing of GUI display using genetic algorithm","authors":"T. Mori, T. Nonaka, T. Hase","doi":"10.1109/ICCE-BERLIN.2011.6031810","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031810","url":null,"abstract":"The authors have already proposed a method of generating a GUI display screen using a genetic algorithm. This paper describes a method of reducing the processing time while achieving the necessary processing. To speed up the processing, three reduction measures are proposed: (1) reduction of the number of times the GA processing algorithm is executed, (2) reduction of the number of generations by means of promoting evolution and selection, and (3) reduction of the time per generation needed for the process. As implemented results, the processing time, which was formerly 60 seconds or longer, was reduced to two seconds or less, or in other words, we could manage to reduce the time needed by all the processing to approximately one thirtieth.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128711356","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031883
L. Fanucci, F. Iacopetti, R. Roncella
Nowadays technology has lead to the realization of high technology videogame consoles supporting very complex and realistic games in terms of graphics, fluidity, near real-like behaviour. Console controllers (joypads) are sophisticated, too, providing several controls like pushbuttons and joysticks. For people with motor impairments, operating such controllers is often difficult or impossible, due to small size and reduced spacing of controls and their arrangement. More over, action games, very popular among young people, also require quick response times. As an overall result, for people with upper limb motor impairments and cognitive disabilities, a barrier exist for accessing videogames. In this paper we propose an interface device allowing upper limb and mild cognitive impaired users to play with a popular video game console, adding beside the original controller a man-machine interface able to manage commercial switch interfaces normally used by disabled people to access and control electronic equipments. The proposed device allows for both autonomous and cooperative game. By means of a very easy and quick procedure, the device allows the mapping of up to nine joypad controls to external switch sensors, turning suitable for many different games, and allowing assignment of game functions to users according to their potential. The device is now available on the market.
{"title":"A console interface for game accessibility to people with motor impairments","authors":"L. Fanucci, F. Iacopetti, R. Roncella","doi":"10.1109/ICCE-BERLIN.2011.6031883","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031883","url":null,"abstract":"Nowadays technology has lead to the realization of high technology videogame consoles supporting very complex and realistic games in terms of graphics, fluidity, near real-like behaviour. Console controllers (joypads) are sophisticated, too, providing several controls like pushbuttons and joysticks. For people with motor impairments, operating such controllers is often difficult or impossible, due to small size and reduced spacing of controls and their arrangement. More over, action games, very popular among young people, also require quick response times. As an overall result, for people with upper limb motor impairments and cognitive disabilities, a barrier exist for accessing videogames. In this paper we propose an interface device allowing upper limb and mild cognitive impaired users to play with a popular video game console, adding beside the original controller a man-machine interface able to manage commercial switch interfaces normally used by disabled people to access and control electronic equipments. The proposed device allows for both autonomous and cooperative game. By means of a very easy and quick procedure, the device allows the mapping of up to nine joypad controls to external switch sensors, turning suitable for many different games, and allowing assignment of game functions to users according to their potential. The device is now available on the market.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121289482","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031864
Cheng-Hsuan Li, Yung-Lin Huang, Shao-Yi Chien
Video processing techniques in most of the current display systems are performed without considering the text information. The proposed algorithm aims to localize the text regions for video processing. To derive the robust text-like features, a statistical analysis is introduced. With the 2D structure analysis and multi-resolution refinement, most text regions are localized using the proposed text-like feature. 1
{"title":"Gradient-based video text localization algorithm with statistical analysis of text-like features","authors":"Cheng-Hsuan Li, Yung-Lin Huang, Shao-Yi Chien","doi":"10.1109/ICCE-BERLIN.2011.6031864","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031864","url":null,"abstract":"Video processing techniques in most of the current display systems are performed without considering the text information. The proposed algorithm aims to localize the text regions for video processing. To derive the robust text-like features, a statistical analysis is introduced. With the 2D structure analysis and multi-resolution refinement, most text regions are localized using the proposed text-like feature. 1","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124449265","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031868
T. Najafi, F. Zargari
One of the most important aspects of image quality is contrast and this paper presents a new hybrid method for contrast enhancement. The proposed method is a combination of two basic contrast enhancement methods i.e. transform and histogram. At first we apply Nonsubsampled Contourlet Transform (NSCT) on the source image, then NSCT coefficients are mapped to fuzzy domain and modified by a mapping function in fuzzy domain. After transforming the modified membership values from fuzzy domain into frequency domain, the enhanced image is reconstructed from the modified NSCT coefficients by inverse NSCT. Finally, histogram of the image is equalized by Contrast Limited Adaptive Histogram Equalization (CLAHE). The experimental results show that our method can achieve higher improvement than both Contourlet Transform (CT) and Histogram Equalization (HE) contrast enhancement methods.
{"title":"A hybrid method for contrast enhancement","authors":"T. Najafi, F. Zargari","doi":"10.1109/ICCE-BERLIN.2011.6031868","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031868","url":null,"abstract":"One of the most important aspects of image quality is contrast and this paper presents a new hybrid method for contrast enhancement. The proposed method is a combination of two basic contrast enhancement methods i.e. transform and histogram. At first we apply Nonsubsampled Contourlet Transform (NSCT) on the source image, then NSCT coefficients are mapped to fuzzy domain and modified by a mapping function in fuzzy domain. After transforming the modified membership values from fuzzy domain into frequency domain, the enhanced image is reconstructed from the modified NSCT coefficients by inverse NSCT. Finally, histogram of the image is equalized by Contrast Limited Adaptive Histogram Equalization (CLAHE). The experimental results show that our method can achieve higher improvement than both Contourlet Transform (CT) and Histogram Equalization (HE) contrast enhancement methods.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130770579","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031885
R. Sámano-Robles, A. Gameiro
Conventional abstraction models of physical-layer algorithms have been proven inaccurate for the cross-layer design of wireless networks with cooperative relaying diversity. To partially fill this gap, this paper proposes an enhanced packet reception model to assist in the cross-layer design of physical and link-layer algorithms with cooperative relaying diversity. The analysis is mainly focused on algorithms where relaying-phases are activated whenever a packet error is detected in previous transmissions. A simplification of this model is proposed by assuming that correct reception is achieved whenever the instantaneous signal-to-interference-plus-noise ratio (SINR) surpasses a given threshold. By further assuming operation in Rayleigh channels, reception probabilities are derived in useful closed-form expressions. This novel result is then used to confirm that cooperative diversity in multi-cell environments with fixed and distributed relays considerably outperforms conventional approaches in terms of throughput and power consumption, particularly for users located near the nodes and at the edge of the cell. Finally, average delay is evaluated using an M/G/1 queue model which shows that relaying phases have a minor but finite impact on the waiting time of each user.
{"title":"A packet reception model for cooperative relaying diversity in wireless multi-cell networks","authors":"R. Sámano-Robles, A. Gameiro","doi":"10.1109/ICCE-BERLIN.2011.6031885","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031885","url":null,"abstract":"Conventional abstraction models of physical-layer algorithms have been proven inaccurate for the cross-layer design of wireless networks with cooperative relaying diversity. To partially fill this gap, this paper proposes an enhanced packet reception model to assist in the cross-layer design of physical and link-layer algorithms with cooperative relaying diversity. The analysis is mainly focused on algorithms where relaying-phases are activated whenever a packet error is detected in previous transmissions. A simplification of this model is proposed by assuming that correct reception is achieved whenever the instantaneous signal-to-interference-plus-noise ratio (SINR) surpasses a given threshold. By further assuming operation in Rayleigh channels, reception probabilities are derived in useful closed-form expressions. This novel result is then used to confirm that cooperative diversity in multi-cell environments with fixed and distributed relays considerably outperforms conventional approaches in terms of throughput and power consumption, particularly for users located near the nodes and at the edge of the cell. Finally, average delay is evaluated using an M/G/1 queue model which shows that relaying phases have a minor but finite impact on the waiting time of each user.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133662014","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031827
T. Rossler, Stephan Rogge, C. Hentschel
CE consumer devices are becoming powerful enough to realize augmented reality (AR) systems on mobile devices, and to visualize complex virtual scenes. This is not limited to CE and increasingly demanded for professional applications. One of them is to visualize power transmission lines and their impact on the landscape. This might help discuss diverse opinions and to optimize the planning in various directions. We propose a mobile augmented reality system by utilizing a consumer Tablet-PC. A main task of AR is camera-pose estimation which can be computational intensive. For that reason we decided to use a marker-based approach with four color spheres.
{"title":"A case study: Mobile augmented reality system for visualization of large buildings","authors":"T. Rossler, Stephan Rogge, C. Hentschel","doi":"10.1109/ICCE-BERLIN.2011.6031827","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031827","url":null,"abstract":"CE consumer devices are becoming powerful enough to realize augmented reality (AR) systems on mobile devices, and to visualize complex virtual scenes. This is not limited to CE and increasingly demanded for professional applications. One of them is to visualize power transmission lines and their impact on the landscape. This might help discuss diverse opinions and to optimize the planning in various directions. We propose a mobile augmented reality system by utilizing a consumer Tablet-PC. A main task of AR is camera-pose estimation which can be computational intensive. For that reason we decided to use a marker-based approach with four color spheres.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115544777","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 : 2011-09-29DOI: 10.1109/ICCE-BERLIN.2011.6031852
Christian Feller, Juergen Wuenschmann, T. Roll, A. Rothermel
VP8 is announced by Google as a royalty-free alternative to the H.264/AVC video codec, promising comparable picture quality, data rate and encoding speed. This paper compares the two codecs analysing the published statements and comparing them with results of our own experiments.
{"title":"The VP8 video codec - overview and comparison to H.264/AVC","authors":"Christian Feller, Juergen Wuenschmann, T. Roll, A. Rothermel","doi":"10.1109/ICCE-BERLIN.2011.6031852","DOIUrl":"https://doi.org/10.1109/ICCE-BERLIN.2011.6031852","url":null,"abstract":"VP8 is announced by Google as a royalty-free alternative to the H.264/AVC video codec, promising comparable picture quality, data rate and encoding speed. This paper compares the two codecs analysing the published statements and comparing them with results of our own experiments.","PeriodicalId":236486,"journal":{"name":"2011 IEEE International Conference on Consumer Electronics -Berlin (ICCE-Berlin)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114588733","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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