Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066443
Jong-Hwan Kim, Seung-Jun Lee, Min-Young Cho, Yeo-Jin Yoon, S. Ko
It is a challenging work to reproduce the high resolution image from the low resolution input while preserving edge structures without causing visual artifacts such as blurring, ringing and jagging. In this paper, we propose an edge guided interpolation method exploiting a data fusion strategy, which interpolates a missing pixel by a weighted sum of directional data estimates for two orthogonal directions. Firstly, each directional data estimate is calculated by 1-D bicubic method along the corresponding direction. Then, we employ the curvature, the second-order directional derivative, to obtain the weights for data fusion. The curvature of the missing pixel decreases as the direction of the curvature is closer to the edge orientation. Experimental results show that the proposed method does not only require the lower computational complexity but also perform better in terms of both subjective and objective visual quality as compared with the state of the art image interpolation algorithms.
{"title":"A second-order derivative-based edge preserving image interpolation","authors":"Jong-Hwan Kim, Seung-Jun Lee, Min-Young Cho, Yeo-Jin Yoon, S. Ko","doi":"10.1109/ICCE.2015.7066443","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066443","url":null,"abstract":"It is a challenging work to reproduce the high resolution image from the low resolution input while preserving edge structures without causing visual artifacts such as blurring, ringing and jagging. In this paper, we propose an edge guided interpolation method exploiting a data fusion strategy, which interpolates a missing pixel by a weighted sum of directional data estimates for two orthogonal directions. Firstly, each directional data estimate is calculated by 1-D bicubic method along the corresponding direction. Then, we employ the curvature, the second-order directional derivative, to obtain the weights for data fusion. The curvature of the missing pixel decreases as the direction of the curvature is closer to the edge orientation. Experimental results show that the proposed method does not only require the lower computational complexity but also perform better in terms of both subjective and objective visual quality as compared with the state of the art image interpolation algorithms.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268658","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066332
June-Young Jung, Seung Park, Cheol-Hwan Yoo, Y. Shin, S. Ko
Multiple flat-panel displays may often seem different in color, even though they are of the same brand and model. As a result, users experience visual fatigue as well as degraded quality while watching displayed contents. In this paper, we propose a method of calibrating multiple displays simultaneously with the use of ordinary cameras, such as a smartphone camera. In the proposed method, brightness synchronization and white point matching are performed for multiple display calibration. Experimental results show that the proposed method achieves a truly unnoticeable color difference between the adjacent displays in terms of ΔE*94, the standard color distance metric.
{"title":"Camera-based color calibration method for multiple flat-panel display system","authors":"June-Young Jung, Seung Park, Cheol-Hwan Yoo, Y. Shin, S. Ko","doi":"10.1109/ICCE.2015.7066332","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066332","url":null,"abstract":"Multiple flat-panel displays may often seem different in color, even though they are of the same brand and model. As a result, users experience visual fatigue as well as degraded quality while watching displayed contents. In this paper, we propose a method of calibrating multiple displays simultaneously with the use of ordinary cameras, such as a smartphone camera. In the proposed method, brightness synchronization and white point matching are performed for multiple display calibration. Experimental results show that the proposed method achieves a truly unnoticeable color difference between the adjacent displays in terms of ΔE*94, the standard color distance metric.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115288942","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066309
M. Abe, Akihiko Hirayama, Sunao Hara
This paper presents an algorithm to mine basic patterns of human activities on a daily basis using non-negative matrix factorization (NMF). The greatest benefit of the algorithm is that it can elicit patterns from which meanings can be easily interpreted. To confirm its performance, the proposed algorithm was applied to PC logging data collected from three occupations in offices. Daily patterns of software usage were extracted for each occupation. Results show that each occupation uses specific software in its own time period, and uses several types of software in parallel in its own combinations. Experiment results also show that patterns of 144 dimension vectors were compressible to those of 11 dimension vectors without degradation in occupation classification performance. Therefore, the proposed algorithm compressed basic software usage patterns to about one-tenth of their original dimensions while preserving the original information. Moreover, the extracted basic patterns showed reasonable interpretation of daily working patterns in offices.
{"title":"Extracting daily patterns of human activity using non-negative matrix factorization","authors":"M. Abe, Akihiko Hirayama, Sunao Hara","doi":"10.1109/ICCE.2015.7066309","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066309","url":null,"abstract":"This paper presents an algorithm to mine basic patterns of human activities on a daily basis using non-negative matrix factorization (NMF). The greatest benefit of the algorithm is that it can elicit patterns from which meanings can be easily interpreted. To confirm its performance, the proposed algorithm was applied to PC logging data collected from three occupations in offices. Daily patterns of software usage were extracted for each occupation. Results show that each occupation uses specific software in its own time period, and uses several types of software in parallel in its own combinations. Experiment results also show that patterns of 144 dimension vectors were compressible to those of 11 dimension vectors without degradation in occupation classification performance. Therefore, the proposed algorithm compressed basic software usage patterns to about one-tenth of their original dimensions while preserving the original information. Moreover, the extracted basic patterns showed reasonable interpretation of daily working patterns in offices.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115505453","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066501
Hyungtae Kim, Eunjung Chae, Gwanghyun Jo, J. Paik
This paper presents a single fisheye lens camera-based visual surveillance system for monitoring a wide area. A fisheye lens has a wider field-of-view (FOV) than normal lenses at the cost of a barrel distortion in the acquired image. After correcting the barrel distortion, the proposed algorithm detects objects, and performs tracking using a histogram-based Gaussian mixture model (GMM). Experimental results show that the proposed algorithm can efficiently detect objects by reducing the geometric distortion of the input image. For this reason it is suitable for not only surveillance cameras but also consumer applications of video object detection and recognition.
{"title":"Fisheye lens-based surveillance camera for wide field-of-view monitoring","authors":"Hyungtae Kim, Eunjung Chae, Gwanghyun Jo, J. Paik","doi":"10.1109/ICCE.2015.7066501","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066501","url":null,"abstract":"This paper presents a single fisheye lens camera-based visual surveillance system for monitoring a wide area. A fisheye lens has a wider field-of-view (FOV) than normal lenses at the cost of a barrel distortion in the acquired image. After correcting the barrel distortion, the proposed algorithm detects objects, and performs tracking using a histogram-based Gaussian mixture model (GMM). Experimental results show that the proposed algorithm can efficiently detect objects by reducing the geometric distortion of the input image. For this reason it is suitable for not only surveillance cameras but also consumer applications of video object detection and recognition.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127497114","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066369
Hyungan Oh, Byungchul An, Anthony L. Smith, Madhusudan Raghavan, F. Park
With the rapid proliferation of electric vehicles requiring battery charging from an off-board power source, there is now a need for an automated recharging system that if economical, reliable, and can be easily installed and operated in a home garage with minimal user intervention. This work reports on the development of a home recharging robot for plug-in electric vehicles. The main contribution is a localization algorithm for determining the location of the plug-in receptacle, using low-cost RFID technology. We report on the design and experiments undertaken with a hardware prototype platform.
{"title":"An RFID localization algorithm for a plug-in electric vehicle recharging robot","authors":"Hyungan Oh, Byungchul An, Anthony L. Smith, Madhusudan Raghavan, F. Park","doi":"10.1109/ICCE.2015.7066369","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066369","url":null,"abstract":"With the rapid proliferation of electric vehicles requiring battery charging from an off-board power source, there is now a need for an automated recharging system that if economical, reliable, and can be easily installed and operated in a home garage with minimal user intervention. This work reports on the development of a home recharging robot for plug-in electric vehicles. The main contribution is a localization algorithm for determining the location of the plug-in receptacle, using low-cost RFID technology. We report on the design and experiments undertaken with a hardware prototype platform.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115358891","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066468
A. Nakamura, M. Itami, K. Ohno
In MIMO(Multiple-Input Multiple Output)-OFDM(Orthogonal Frequency Division Multiplexing) systems, ICI(Inter-Carrier Interference) is generated by Doppler-spread in mobile reception of OFDM signals. The MIMO-ICI canceller with complexity reduction has been proposed. It is possible to reduce the complex. However, reception characteristics are deteriorated than the ordinary MIMO-ICI canceller. In this paper, the improving scheme of the conventional MIMO-ICI canceller with complexity reduction is proposed. In the proposed scheme, the iterative detection is adopted. As the results of computer simulations, the proposed scheme can improve reception characteristics with complexity reduction.
{"title":"A study on MIMO-ICI canceller using iterative detection in mobile reception of OFDM","authors":"A. Nakamura, M. Itami, K. Ohno","doi":"10.1109/ICCE.2015.7066468","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066468","url":null,"abstract":"In MIMO(Multiple-Input Multiple Output)-OFDM(Orthogonal Frequency Division Multiplexing) systems, ICI(Inter-Carrier Interference) is generated by Doppler-spread in mobile reception of OFDM signals. The MIMO-ICI canceller with complexity reduction has been proposed. It is possible to reduce the complex. However, reception characteristics are deteriorated than the ordinary MIMO-ICI canceller. In this paper, the improving scheme of the conventional MIMO-ICI canceller with complexity reduction is proposed. In the proposed scheme, the iterative detection is adopted. As the results of computer simulations, the proposed scheme can improve reception characteristics with complexity reduction.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122405067","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066453
S. Tiwari, Atul Sewaiwar, Yeon-ho Chung
Smart home technologies using visible light data transmission are presented. For multiple devices, orthogonal code based time division duplexed bidirectional Visible Light Communication (VLC) link is employed. The proposed model for smart home is an efficient technology with superior BER performance, subject to locations in a typical smart home environment.
{"title":"Smart home technologies using Visible Light Communication","authors":"S. Tiwari, Atul Sewaiwar, Yeon-ho Chung","doi":"10.1109/ICCE.2015.7066453","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066453","url":null,"abstract":"Smart home technologies using visible light data transmission are presented. For multiple devices, orthogonal code based time division duplexed bidirectional Visible Light Communication (VLC) link is employed. The proposed model for smart home is an efficient technology with superior BER performance, subject to locations in a typical smart home environment.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122736037","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066438
Jaeyong Ju, Bonhwa Ku, Daehun Kim, Taeyup Song, D. Han, Hanseok Ko
This paper presents a novel online multi-person tracking method based on tracking-by-detection framework for intelligent video surveillance systems consisting of an internet protocol (IP) camera and a network video recorder (NVR). First, the two-step data association based on high/low confidence targets is proposed for handling long-term occlusions effectively. Additionally, the method that reasons and handles severe inter-target occlusion is proposed. Representative experimental results demonstrate the effectiveness and robustness of the proposed method.
{"title":"Online multi-person tracking for intelligent video surveillance systems","authors":"Jaeyong Ju, Bonhwa Ku, Daehun Kim, Taeyup Song, D. Han, Hanseok Ko","doi":"10.1109/ICCE.2015.7066438","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066438","url":null,"abstract":"This paper presents a novel online multi-person tracking method based on tracking-by-detection framework for intelligent video surveillance systems consisting of an internet protocol (IP) camera and a network video recorder (NVR). First, the two-step data association based on high/low confidence targets is proposed for handling long-term occlusions effectively. Additionally, the method that reasons and handles severe inter-target occlusion is proposed. Representative experimental results demonstrate the effectiveness and robustness of the proposed method.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122744704","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066338
Y. Hironaka, H. Ohmata, G. Ohtake, K. Otsuki, Masaru Takechi, K. Kai, K. Majima
An application distribution management system for “Hybridcast” is proposed in this paper. This system will enable a broadcaster to comprehensively manage Web applications provided by service providers from registration to distribution and enable the operation of any application to be immediately terminated in the event of a problem. This paper describes the details of the proposed system and presents the evaluation results of the system using prototype equipment.
{"title":"An application distribution management system for Hybridcast","authors":"Y. Hironaka, H. Ohmata, G. Ohtake, K. Otsuki, Masaru Takechi, K. Kai, K. Majima","doi":"10.1109/ICCE.2015.7066338","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066338","url":null,"abstract":"An application distribution management system for “Hybridcast” is proposed in this paper. This system will enable a broadcaster to comprehensively manage Web applications provided by service providers from registration to distribution and enable the operation of any application to be immediately terminated in the event of a problem. This paper describes the details of the proposed system and presents the evaluation results of the system using prototype equipment.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122985719","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 : 2015-03-26DOI: 10.1109/ICCE.2015.7066510
H. Yen, Min-Jyun Syu
In recent years, the demand of polarizer films has increased since that liquid crystal displays are widely used in consumer electronics products such as smart phones, tablet computers and large-size TVs. For improving production yields, manufacturers actively adopt automated inspection equipment to detect in-line polarizer film defects. This study uses computer vision techniques to develop a cost-effective optical detection system for the tiny bump defects of polarizer films. The proposed system applies digital fringes and image processing techniques to detect the tiny bump defects. Experiments show that the proposed system can effectively detect the tiny bump defects, and complete the defect inspection of a sample polarizer film with an area of 1600 × 1200 pixels (36mm × 27mm) within 0.3 seconds.
{"title":"Inspection of polarizer tiny bump defects using computer vision","authors":"H. Yen, Min-Jyun Syu","doi":"10.1109/ICCE.2015.7066510","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066510","url":null,"abstract":"In recent years, the demand of polarizer films has increased since that liquid crystal displays are widely used in consumer electronics products such as smart phones, tablet computers and large-size TVs. For improving production yields, manufacturers actively adopt automated inspection equipment to detect in-line polarizer film defects. This study uses computer vision techniques to develop a cost-effective optical detection system for the tiny bump defects of polarizer films. The proposed system applies digital fringes and image processing techniques to detect the tiny bump defects. Experiments show that the proposed system can effectively detect the tiny bump defects, and complete the defect inspection of a sample polarizer film with an area of 1600 × 1200 pixels (36mm × 27mm) within 0.3 seconds.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122988579","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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