Pub Date : 2013-11-01DOI: 10.1109/ICAWST.2013.6765490
Zunyi Tang, Toshiyo Tamura, Shuxue Ding, Zhenni Li
Recently, sparse representations via an overcomplete dictionary has become a major field of research in signal processing. Much efforts have been focused on the development of dictionary learning algorithms so that the sparse representation of signals can be efficiently performed. In this paper, we propose a method for learning a signal dependent overcomplete dictionary. This is accomplished by posing the sparse representation of signals as a problem of matrix factorization with a sparsity constraint. By generalizing the conventional coordinate descent method, we develop a so-called sparse alternating parallel coordinate descent (SAPCD) algorithm, which is structured by iteratively solving the two optimal problems, the learning process of the dictionary and the estimating process of the coefficients for constructing the signals. Numerical experiments demonstrate that the proposed algorithm performs better than the famous K-SVD algorithm and several other algorithms for comparison.
{"title":"Sparse representation and dictionary learning based on alternating parallel coordinate descent","authors":"Zunyi Tang, Toshiyo Tamura, Shuxue Ding, Zhenni Li","doi":"10.1109/ICAWST.2013.6765490","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765490","url":null,"abstract":"Recently, sparse representations via an overcomplete dictionary has become a major field of research in signal processing. Much efforts have been focused on the development of dictionary learning algorithms so that the sparse representation of signals can be efficiently performed. In this paper, we propose a method for learning a signal dependent overcomplete dictionary. This is accomplished by posing the sparse representation of signals as a problem of matrix factorization with a sparsity constraint. By generalizing the conventional coordinate descent method, we develop a so-called sparse alternating parallel coordinate descent (SAPCD) algorithm, which is structured by iteratively solving the two optimal problems, the learning process of the dictionary and the estimating process of the coefficients for constructing the signals. Numerical experiments demonstrate that the proposed algorithm performs better than the famous K-SVD algorithm and several other algorithms for comparison.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"6 1","pages":"491-497"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89232766","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765544
J. Daemen, Peter Haufs-Brusberg, J. Herder
Virtual (tv) studios gain much more acceptance through improvements in computer graphics and camera tracking. Still commercial studios cannot have full interaction between actors and virtual scene because actors data are not completely digital available as well as the feedback for actors is still not sufficient. Markerless full body tracking might revolutionize virtual studio technology as it allows better interaction between real and virtual world. This article reports about using a markerless actor tracking in a virtual studio with a tracking volume of nearly 40 cubic meter enabling up to three actors within the green box. The tracking is used for resolving the occlusion between virtual objects and actors so that the Tenderer can output automatically a mask for virtual objects in the foreground in case the actor is behind. It is also used for triggering functions scripted within the Tenderer engine, which are attached to virtual objects, starting any kind of action (e.g., animation). Last but not least the system is used for controlling avatars within the virtual set. All tracking and rendering is done within a studio frame rate of 50 Hz with about 3 frames delay. The markerless actor tracking within virtual studios is evaluated by experts using an interview approach. The statistical evaluation is based on a questionnaire.
{"title":"Markerless actor tracking for virtual (TV) studio applications","authors":"J. Daemen, Peter Haufs-Brusberg, J. Herder","doi":"10.1109/ICAWST.2013.6765544","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765544","url":null,"abstract":"Virtual (tv) studios gain much more acceptance through improvements in computer graphics and camera tracking. Still commercial studios cannot have full interaction between actors and virtual scene because actors data are not completely digital available as well as the feedback for actors is still not sufficient. Markerless full body tracking might revolutionize virtual studio technology as it allows better interaction between real and virtual world. This article reports about using a markerless actor tracking in a virtual studio with a tracking volume of nearly 40 cubic meter enabling up to three actors within the green box. The tracking is used for resolving the occlusion between virtual objects and actors so that the Tenderer can output automatically a mask for virtual objects in the foreground in case the actor is behind. It is also used for triggering functions scripted within the Tenderer engine, which are attached to virtual objects, starting any kind of action (e.g., animation). Last but not least the system is used for controlling avatars within the virtual set. All tracking and rendering is done within a studio frame rate of 50 Hz with about 3 frames delay. The markerless actor tracking within virtual studios is evaluated by experts using an interview approach. The statistical evaluation is based on a questionnaire.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"20 1","pages":"790-796"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78904247","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765452
M. Nakao, A. Karashima, N. Katayama
Conventionally sleep is understood as an unconscious state in which human and animals are taking rest physically as well as physiologically. However, sleep has been suggested to serve for development and maintenance of the higher-order brain functions as well. Actually neuronal activities show peculiar dynamics to sleep state and some neurons become rather active during sleep than wakefulness. Associated with neuronal activities, molecular and cellular machinery are found to be involved for the functions of sleep. Considering unconsciousness during sleep, neurobiological events characterizing sleep seem to be autonomously regulated. But, are they? In this essay, the neurobiological phenomena during sleep and their possible contribution to the sleep functions are reviewed. In addition, it is examined whether these neurobiological events during unconscious state of sleep are causally regulated or not.
{"title":"Is autonomy working under unconscious state of sleep?","authors":"M. Nakao, A. Karashima, N. Katayama","doi":"10.1109/ICAWST.2013.6765452","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765452","url":null,"abstract":"Conventionally sleep is understood as an unconscious state in which human and animals are taking rest physically as well as physiologically. However, sleep has been suggested to serve for development and maintenance of the higher-order brain functions as well. Actually neuronal activities show peculiar dynamics to sleep state and some neurons become rather active during sleep than wakefulness. Associated with neuronal activities, molecular and cellular machinery are found to be involved for the functions of sleep. Considering unconsciousness during sleep, neurobiological events characterizing sleep seem to be autonomously regulated. But, are they? In this essay, the neurobiological phenomena during sleep and their possible contribution to the sleep functions are reviewed. In addition, it is examined whether these neurobiological events during unconscious state of sleep are causally regulated or not.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"61 1","pages":"304-306"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84555442","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765477
Hua-Wen Tsai, Jhen-Jhou Jhong, Meng-Ruei Lin
Visual sensor networks offer surveillance applications, particularly object tracking. This study proposed an angle converge algorithm for mobile object to cover all angles of a mobile object in wireless camera sensor networks. This algorithm mainly applies to a security monitor system that can detect the object tracks and need to catch the 360° images of mobile object. This study designs a node selection algorithm to find a set of coverage nodes. The field of views of coverage nodes can cover all angles of mobile object. When the object moves, the set of coverage nodes has to update to maintain full coverage angle. We have to select the minimum number of nodes to cover full coverage angle. The wireless camera sensor network is random deployed in the monitor area environment. Each sensor node has rotational camera lens, and each camera can rotate 360 degrees. When a node detects a mobile object in the monitor area, it starts the tracking task and selects a set of coverage nodes to cover the mobile object. The field of view of camera is turned to follow the tracks of object. The mobile object is monitored by the proposed algorithm.
{"title":"The angle coverage algorithm of mobile object in wireless camera sensor networks","authors":"Hua-Wen Tsai, Jhen-Jhou Jhong, Meng-Ruei Lin","doi":"10.1109/ICAWST.2013.6765477","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765477","url":null,"abstract":"Visual sensor networks offer surveillance applications, particularly object tracking. This study proposed an angle converge algorithm for mobile object to cover all angles of a mobile object in wireless camera sensor networks. This algorithm mainly applies to a security monitor system that can detect the object tracks and need to catch the 360° images of mobile object. This study designs a node selection algorithm to find a set of coverage nodes. The field of views of coverage nodes can cover all angles of mobile object. When the object moves, the set of coverage nodes has to update to maintain full coverage angle. We have to select the minimum number of nodes to cover full coverage angle. The wireless camera sensor network is random deployed in the monitor area environment. Each sensor node has rotational camera lens, and each camera can rotate 360 degrees. When a node detects a mobile object in the monitor area, it starts the tracking task and selects a set of coverage nodes to cover the mobile object. The field of view of camera is turned to follow the tracks of object. The mobile object is monitored by the proposed algorithm.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"106 2 1","pages":"422-428"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75275040","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 : 2013-11-01DOI: 10.1109/ICAwST.2013.6765420
B. Ripley, D. Liu, Maiga Chang, Kinshuk
User wandering behaviours may involve many location visits in different order. The research team has proposed an algorithm which can provide users recommendation for their next visit according to the similarity of their behaviours between each others and the connections amongst locations. In order to test the effectiveness of proposed algorithm the research team develops a mobile app - Next Stop Recommender - for Android platform. This paper focuses on the app itself and discusses the potential use of the app and the enhancement directions of the proposed algorithm.
{"title":"Next Stop Recommender","authors":"B. Ripley, D. Liu, Maiga Chang, Kinshuk","doi":"10.1109/ICAwST.2013.6765420","DOIUrl":"https://doi.org/10.1109/ICAwST.2013.6765420","url":null,"abstract":"User wandering behaviours may involve many location visits in different order. The research team has proposed an algorithm which can provide users recommendation for their next visit according to the similarity of their behaviours between each others and the connections amongst locations. In order to test the effectiveness of proposed algorithm the research team develops a mobile app - Next Stop Recommender - for Android platform. This paper focuses on the app itself and discusses the potential use of the app and the enhancement directions of the proposed algorithm.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"156 1","pages":"120-125"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91186115","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765502
Hui-Yuan Liu, Tsung-Yi Tsai, Tai-Kuei Ren
As technology advances, the application of RFID technology in real life has become a lot wider than before. While embracing such a new era of advanced technology, further development in various fields of expertise will help reducing the cost of labour force, and provide more convenience. Our research has innovative incorporated RFID technology and equipments with glucometer to increase its effectiveness and efficiency. By attaching the RFID tags on the box of glucose testers, and transmit collected data to the glucometer, it has become possible to quickly utilize the data collected by the tags. At the same time the information from the calibration chip can be stored in the tags, making it even more convenient and effective for diabetes patients to apply in real life.
{"title":"An innovative application by incorporating RFID technology with current available glucometer","authors":"Hui-Yuan Liu, Tsung-Yi Tsai, Tai-Kuei Ren","doi":"10.1109/ICAWST.2013.6765502","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765502","url":null,"abstract":"As technology advances, the application of RFID technology in real life has become a lot wider than before. While embracing such a new era of advanced technology, further development in various fields of expertise will help reducing the cost of labour force, and provide more convenience. Our research has innovative incorporated RFID technology and equipments with glucometer to increase its effectiveness and efficiency. By attaching the RFID tags on the box of glucose testers, and transmit collected data to the glucometer, it has become possible to quickly utilize the data collected by the tags. At the same time the information from the calibration chip can be stored in the tags, making it even more convenient and effective for diabetes patients to apply in real life.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"16 1","pages":"558-563"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88388786","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765462
Tsuneo Kagawa, Hiroaki Nishino, S. Tanoue, H. Kiyosue, H. Mori
Computer Aided Diagnosis (CAD) has become one of the most important medical activities. Because of development of image processing, large amount of high-definition images are provided to investigate. Radiologists have to cost so much times and efforts to investigate these medical images. It is strongly required to reduce their burden without debasing the quality of imaging diagnosis. In this paper, we propose a method to generate sound information based on the image features and discuss about their effects of sounds for diagnosis. Sonification technique helps for attention rousing and the fatigue reduction for medical imaging diagnosis.
{"title":"A medical imaging diagnosis supporting method with sound effects","authors":"Tsuneo Kagawa, Hiroaki Nishino, S. Tanoue, H. Kiyosue, H. Mori","doi":"10.1109/ICAWST.2013.6765462","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765462","url":null,"abstract":"Computer Aided Diagnosis (CAD) has become one of the most important medical activities. Because of development of image processing, large amount of high-definition images are provided to investigate. Radiologists have to cost so much times and efforts to investigate these medical images. It is strongly required to reduce their burden without debasing the quality of imaging diagnosis. In this paper, we propose a method to generate sound information based on the image features and discuss about their effects of sounds for diagnosis. Sonification technique helps for attention rousing and the fatigue reduction for medical imaging diagnosis.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"3 1","pages":"338-344"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82083773","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765425
J. Davis, R. Kozma, W. Freeman
As part of the developing body of research about neural correlates of higher cognitive functions and awareness we have recently reported that the creation of knowledge and meaning could be manifested via Cortical Singularities. In this work we present new neurophysiological evidence of the hypothesized cognitive cycle in the emergence of awareness when a presumable meaningful stimuli is presented to an animal. This stimulus is manifested in the neocortex, as the creation of the knowledge necessary for intentional behavior and decision making. The results are interpreted through the concept of Pragmatic Information, which is complementary to the Shannon Entropy Index. We identify large-scale synchronization across broad frequency band as potential manifestation of the `aha' effect, indicating the construction of knowledge and meaning from input sensory data and leading to awareness experience.
{"title":"Neurophysiological evidence of the cognitive cycle and the emergence of awareness","authors":"J. Davis, R. Kozma, W. Freeman","doi":"10.1109/ICAWST.2013.6765425","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765425","url":null,"abstract":"As part of the developing body of research about neural correlates of higher cognitive functions and awareness we have recently reported that the creation of knowledge and meaning could be manifested via Cortical Singularities. In this work we present new neurophysiological evidence of the hypothesized cognitive cycle in the emergence of awareness when a presumable meaningful stimuli is presented to an animal. This stimulus is manifested in the neocortex, as the creation of the knowledge necessary for intentional behavior and decision making. The results are interpreted through the concept of Pragmatic Information, which is complementary to the Shannon Entropy Index. We identify large-scale synchronization across broad frequency band as potential manifestation of the `aha' effect, indicating the construction of knowledge and meaning from input sensory data and leading to awareness experience.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"110 1","pages":"149-157"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72869255","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765506
Duc V. Nguyen, Hung T. Le, A. Pham, T. Thang, Jin Young Lee, K. Yun
In this paper, we investigate the use of HTTP streaming in home surveillance system. First, we propose a dynamic resource allocation framework among the cameras. Under a set of constraints, e.g. link bandwidth and delay, our resource allocation solution decides which video versions will be requested from which cameras in order to maximize the weighted sum of utility for all cameras. The optimization, which is performed at the client, is based on a utility model for each video stream that takes into account not only perceptual quality but also the delay of a video stream. Video content is obtained through HTTP request/response transaction between the client and the cameras. The experiment results show that the proposed method is able to effectively improve the overall utility while still supporting low end-to-end delay and good perceptual quality for important cameras.
{"title":"Adaptive home surveillance system using HTTP streaming","authors":"Duc V. Nguyen, Hung T. Le, A. Pham, T. Thang, Jin Young Lee, K. Yun","doi":"10.1109/ICAWST.2013.6765506","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765506","url":null,"abstract":"In this paper, we investigate the use of HTTP streaming in home surveillance system. First, we propose a dynamic resource allocation framework among the cameras. Under a set of constraints, e.g. link bandwidth and delay, our resource allocation solution decides which video versions will be requested from which cameras in order to maximize the weighted sum of utility for all cameras. The optimization, which is performed at the client, is based on a utility model for each video stream that takes into account not only perceptual quality but also the delay of a video stream. Video content is obtained through HTTP request/response transaction between the client and the cameras. The experiment results show that the proposed method is able to effectively improve the overall utility while still supporting low end-to-end delay and good perceptual quality for important cameras.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"58 1","pages":"579-584"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88502664","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 : 2013-11-01DOI: 10.1109/ICAWST.2013.6765479
Min-Feng Lee, Guey-Shya Chen
Nowadays, emotion is leaded into a key position of human behavior clue, and hence it should be included within the sensible model when an intelligent system aims to simulate or forecast human responses. This research utilizes backpropagation one of neural network model to build the emotion detecting mechanism. This research integrates and manipulates the Thayer's emotion mode, Fuzzy Cognitive Maps and color theory into the backpropagation neural network model for an innovative emotion detecting system. This paper uses 100 data in four emotion groups to train the weight in the neural network and use 300 data to verify the accuracy in this system. The result reveals that backpropagation neural network can be effective estimation the emotion by feedback color from human. For the further research, colors will not the only human behavior clues, even more than all the factors from human interaction.
{"title":"Backpropagation neural network model for detecting artificial emotions with color","authors":"Min-Feng Lee, Guey-Shya Chen","doi":"10.1109/ICAWST.2013.6765479","DOIUrl":"https://doi.org/10.1109/ICAWST.2013.6765479","url":null,"abstract":"Nowadays, emotion is leaded into a key position of human behavior clue, and hence it should be included within the sensible model when an intelligent system aims to simulate or forecast human responses. This research utilizes backpropagation one of neural network model to build the emotion detecting mechanism. This research integrates and manipulates the Thayer's emotion mode, Fuzzy Cognitive Maps and color theory into the backpropagation neural network model for an innovative emotion detecting system. This paper uses 100 data in four emotion groups to train the weight in the neural network and use 300 data to verify the accuracy in this system. The result reveals that backpropagation neural network can be effective estimation the emotion by feedback color from human. For the further research, colors will not the only human behavior clues, even more than all the factors from human interaction.","PeriodicalId":68697,"journal":{"name":"炎黄地理","volume":"176 1","pages":"433-438"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82982780","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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