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ABSTRACT: We present an algorithm to model 3D workspace and to understand test scene for mobile robot’s navigation or human computer
interaction. This has done by line-based modeling and recognition algorithm. Line-based recognition using 3D lines has been
tried by many researchers however its reliability still needs improvement due to ambiguity of 3D line feature information
from original images. To improve the outcome, we approach firstly to find real planes using given 3D lines and then to implement
recognition process. The methods we use are principle component analysis (PCA), plane sweep, occlusion query, and iterative
closest point (ICP). During the implementation, we also use 3D map information for localization. We apply this algorithm to
real test scene images and find out our result can be useful to identify doors or walls in indoor environment with better
efficiency.
KeywordsLine-based recognition–Plane sweep–Real plane–Occlusion query–Visibility test
Journal of Intelligent and Robotic Systems 04/2012; 63(1):131-147. · 0.83 Impact Factor
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Journal of Intelligent and Robotic Systems. 01/2011; 63:131-147.
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ABSTRACT: This paper proposes a home-to-home media streaming system which supports UPnP A/V devices to multicast massive content to several devices in different UPnP-enabled home networks. This system is based on the traffic control mechanism defined in the UPnP QoS architecture and a peer-to-peer distribution scheme. With these schemes, the designed system enables a source UPnP media server to stream high quality content to multiple UPnP renderers in physically separated homes through peer-to-peer overlay paths established between home servers with content distribution and QoS device capability.
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on; 03/2009
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Pattern Recognition Letters. 01/2009; 30:968-976.
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ABSTRACT: We present a prospective algorithm to understand test scene for line base recognition and 3D pose estimation. Given 3D line segments, first, we set up reference plane using principle component analysis (PCA) for each line pair. Then, we measure the normal distance and line orientation for the remains of 3D segments to the reference plane and define coplanarity. And we initiate visibility test to prune out ambiguous planes amongst reference planes. After we finish visibility test, we patching these reference planes and define them as real plane candidates using plane sweep algorithm and find objects in the scene. We apply this algorithm to real images, and the results are found useful to identify table or door especially adjacent to walls.
Convergence and Hybrid Information Technology, 2008. ICHIT '08. International Conference on; 09/2008
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ABSTRACT: In this research, we proposed two types of fault recovery schemes designed by combining the protection and the restoration
methods in order to increase the survivability of GMPLS networks. The first method is a transformation of the 1+1 protection
method where it consumes more resources than the 1+1 protection method but has a faster fault recovery speed. The second method
is a combination of the 1+1 protection method and the restoration method and can enhance the performance after recoveries.
Although the two methods proposed in this paper consume more resources than the ones before, they have outstanding recovery
time and performance after recoveries.
06/2008: pages 43-55;
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ABSTRACT: To provide personalized UPnP A/V session mobility service following a userpsilas movement trajectory in the home, we designed a RFID-based UPnP A/V session manager. It automatically tracks userspsila locations based on notification events received from RFID readers, and captures or restores the states of playing A/V contents using the UPnP A/V transport service which defines a common model for A/V transport control. We present the session managerpsilas functional architecture and describe the detailed control flow sequence for session mobility control.
Consumer Electronics, 2008. ISCE 2008. IEEE International Symposium on; 05/2008
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ABSTRACT: To ensure continuity of a UPnP A/V session following a user's movement trajectory in the home, we designed a RFID-based UPnP A/V session manager. It automatically detects a user's movement with an RFID reader, and captures or restores the states of playing A/V contents using the UPnP AVTransport service which defines a common model for A/V transport control. We present the functions and control flow operation of the designed session manager, and describe how its state is changed by the event messages generated by an RFID reader or its internal timer, and explain an algorithm for controlling access of multi-users at the same time.
Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on; 03/2008
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ABSTRACT: We present an algorithm to modelling the test scene for intelligent robot. In intelligent robotics, to develop compact and
reliable vision system components for navigation or human computer interaction is essential. As our approach, we develop the
line-based modelling and recognition algorithm based on 3D features from stereo camera images. The basic concept is build
real plane features from 3D stereo images from mobile robot to navigate or for human computer interaction in the living room
environment. The procedure is, first, given 3D line segments, we set up reference plane using principle component analysis
(PCA) for each line pair. Then, we measure the normal distance and line orientation for the remains of 3D segments to the
reference plane and define coplanarity. And we initiate visibility test to prune out ambiguous planes from reference planes.
After we finish visibility test, we patching these reference planes and define them as real plane candidates using plane sweep
algorithm. And finally, try to find model objects from the test scene using iterative closest point (ICP). During the implementation,
we also use 3D map information for exact localization. We apply this algorithm to the real images and the result found useful
to identify door at the wall.
03/2008: pages 813-822;
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ABSTRACT: Existing, home networking protocols such as UPnP are not ready to support media streaming services among home networks. Furthermore, a home router with NAT makes it difficult to provide such home-to-home network services. Considering the constraints of real home network environments such as these, we propose a solution that offers a personal control space so that users can freely control their own home devices and remote devices on their moving UPnP-enabled networks with zero-configuration. For this, we have implemented the personal mobile A/V control point (PMCP) and the UPnP relay.
Consumer Electronics, 2008. ICCE 2008. Digest of Technical Papers. International Conference on; 02/2008
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Computational Science and Its Applications - ICCSA 2008, International Conference, Perugia, Italy, June 30 - July 3, 2008, Proceedings, Part II; 01/2008
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Challenges for Next Generation Network Operations and Service Management, 11th Asia-Pacific Network Operations and Management Symposium, APNOMS 2008, Beijing, China, October 22-24, 2008. Proceedings; 01/2008
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Proceedings of the 2008 International Conference on Communications in Computing, CIC 2008, July 14-17, 2008, Las Vegas, Nevada, USA; 01/2008
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Advances in Visual Computing, 4th International Symposium, ISVC 2008, Las Vegas, NV, USA, December 1-3, 2008. Proceedings, Part II; 01/2008
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ABSTRACT: To automatically move a mobile user's desktop environment following his/her movement trajectory, we design the RFID-based desktop migration system. This system automatically detects a user's movement with a RFID reader, and then captures or restores application states by dynamically binding to the interface exported by application-specific libraries. We present the functional architecture of the designed system, and define the protocols for advertising an application-specific library and delivering migration data. We describe how its state is changed by the events generated by a RFID reader or its internal timer, and design an algorithm for controlling the access of multi-user.
Consumer Electronics, 2007. ISCE 2007. IEEE International Symposium on; 07/2007
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ABSTRACT: For the purpose of realization of the automated desktop migration environment based on dynamic linking of application specific library, we suggest a desktop migration system which supports application registration, global ID generation, application state management, and library management function. This system can save cost and time in generating a task description and developing application specific communication protocol, and also enables legacy applications to move their application states by supporting open delivery platform of application specific library
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference; 03/2006
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ABSTRACT: Traditionally, the digital home services have been provided separately by each service providers that have closed service delivery infrastructure for delivering home services. Because of this, small companies that do not have the infrastructure to deploy home services have difficulties in participating in the home network market. To solve this problem, we propose the digital home service delivery system that provides open service delivery platform that small business companies need to provide various home services to users. By using the proposed system, the service aggregator using the proposed system can lead competition of the 3rd party service providers in the home network service market, and help it grow rapidly.
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on; 02/2006
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Intelligent Data Engineering and Automated Learning - IDEAL 2006, 7th International Conference, Burgos, Spain, September 20-23, 2006, Proceedings; 01/2006
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Frontiers of High Performance Computing and Networking - ISPA 2006 Workshops, ISPA 2006 International Workshops, FHPCN, XHPC, S-GRACE, GridGIS, HPC-GTP, PDCE, ParDMCom, WOMP, ISDF, and UPWN, Sorrento, Italy, December 4-7, 2006, Proceedings; 01/2006
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Networking - ICN 2005, 4th International Conference on Networking, ReunionIsland, France, April 17-21, 2005, Proceedings, Part I; 01/2005
