Home > People > Ramakrishna_Vedantham
Ramakrishna Vedantham
Member of Research Staff
NRC Palo Alto
Contact
Background
I am a Member of Research Staff in the Visual Computing and Ubiquitous Imaging (VCUI) research team at Nokia Research Center (NRC) Palo Alto. I have been with NRC since January 2004 and participated in the research and standardization activities related to multimedia codecs and transport protocols. I served as a Nokia delegate in 3GPP SA4 work group where I contribute to the technical specification of Multimedia Broadcast Multicast Service (MBMS), Packet-switched Streaming Service (PSS) and Dynamic and Interactive Multimedia Scenes (DIMS). I was also a Nokia delegate in the 3GPP2 TSG-C1.2 work group where I contributed towards the technical specifications of Broadcast Multicast Services (BCMCS) and Packet-switched Video Telephony (PSVT).
Prior to that I was a PhD student in the Dept of Electrical Engineering at the University of Texas at Dallas. I received an MS degree in Electrical Engineering from the University of Texas at Dallas in December 2000, and a BTech in Electronics and Communications Enginnering from the National Institute of Technology Calicut (formerly Calicut Regional Engineering College) in 1996.
Professional Activities |
- Nokia delegate in 3GPP SA4 and 3GPP2 TSG-C1.2 standards meetings
- Editor of 3GPP2 Technical Specification on BCMCS Codecs and Protocols
- IEEE Member, ACM Member
- Reviewer of IEEE Transactions on Image Processing, IEEE Transactions on Circuits and Systems for Video Technology, IEEE Transactions on Wireless Communications, IEEE Computer Graphics and Applications Journal, IET Image Processing Journal and the following conferences: ICC 2007, PV 2007, VIE 2006, MUM 2006, PIMRC 2006, ICIP 2004 and GlobeCom 2003
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Research Interests |
I have a broad range of research interests involving end-to-end design of mobile multimedia communication systems and services. I am excited by the plethora of mobile internet based services made possible by the explosive growth in the use of mobie computers (smart phones) that have multimodal connectivity with smart environments, that have high speed ubiquitous network access, and that have powerful multimedia processing capabilities.
My recent focus is on mobile augmented reality applications, computational photography and other computer vision based applications of cameraphones. In particular I am interested in building end-to-end systems for fast content based image retrieval from large collections (millions) of images. Some interesting applications that I am working on include landmark based navigation service for GPS enabled phones, and image recognition based services for camera phones. I am also interested in building systems for efficient processing of large collections of geo-referenced images to enable novel mobile augmented reality services.
My prior research interests were in the general area of reliable multimedia transport and in particular error-resilient video coding, joint source-channel coding, advanced forward error correction coding (FEC) technologies and cross-layer optimization techniques for mobile multimedia communication.
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Supporting/Other Information | Awards & Honors
- Best Student Paper Award (co-author), MUM 2008 Conference
- TxTEC Scholarship, Texas Telecommunications Engineering Consortium, 08/2002-05/2003
- ECS Special Fellowship, University of Texas at Dallas, 08/2000-05/2002
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Publications |
- H. Hile, R. Grzeszczuk, A. Liu, R. Vedantham, J. Kosecka, G. Borriello, "Visual Navigation for Mobile Devices",
IEEE Multimedia (Special Issue on Mobile and Ubiquitous Media), April-June, 2010.(Accepted)
- D. Chen, S. Tsai, R. Vedantham, R. Grzeszczuk, B. Girod, "Streaming Mobile Augmented Reality on Mobile Phones",
8th International Symposium on Mixed and Augmented Reality, Orlando, Florida, October 19-22, 2009 (ISMAR 2009)
The 2009 IEEE International Workshop on 3-D Digital Imaging and Modeling (3DIM 2009), Kyoto, Japan, October 3-4, 2009 (held in conjunction with ICCV 2009)
- K. Pulli, W-C.Chen, N. Gelfand, R. Grzeszczuk, M. Tico, R. Vedantham, Y. Xiong, X. Wang, "Mobile Visual Computing",
7th International Symposium of Ubiquitous Virtual Reality (ISUVR 2009), Gwangju, South Korea, July 2009 (Invited paper).
The 7th International Conference on Pervasive Computing (Pervasive 2009), Nara, Japan, May 2009.
In Proceedings of ACM International Conference on Mobile and Ubiquitous Multimedia (MUM 2008), Umea, Sweden, December 2008, ACM Press (2008)
- R. Vedantham, I. Curcio, "Interactive Mobile TV Technologies - An Overview",
Book chapter in "Broadband Nobile Multimedia - Techniques and applications", CRC Press, 2008.
- R. Vedantham, I. Curcio, "Broadcasting Multimedia Transport: 3G and Future Mobile Networks ",
Book chapter in "Encyclopedia of Wireless and Mobile Communications", CRC Press, 2007.
IEEE International Conference on Multimedia & Expo (ICME), Toronto, Canada, July 2006
IEEE Global Communication Conference, Dallas, TX, November 2004.
41st Annual Allerton Conference on Communications Control and Computing.
- Co-author of several technical contributions to 3GPP SA4 and 3GPP2 TSG-C1.2 meetings in the areas of mobile multimedia broadcast/multicast, rich media transport, and interactive multimedia sharing applications
- Co-author of two granted patents and several pending patent applications in the areas of reliable multimedia delivery over mobile broadcast/multicast networks, rich media transport, and interactive multimedia sharing applications
Posters & Demos
- D. Chen, S. Tsai, R. Vedantham, R. Grzeszczuk, B. Girod, "Streaming Mobile Augmented Reality on Mobile Phones",
8th International Symposium on Mixed and Augmented Reality, Orlando, Florida, October 19-22, 2009 (ISMAR 2009)
- H. Hile, R. Grzeszczuk, R. Vedantham, J. Kosecka, A. Liu, G. Borriello, "Augmenting Images with Context on Mobile Devices",
The 7th Annual International Conference on Mobile Systems, Applications and Services (Mobisys 2009), Krakow, Poland, June 2009.
- H. Hile, R. Vedantham, A. Liu, G. Cuellar, N. Gelfand, R. Grzeszczuk, G. Borriello, K. Pulli, "Landmark Based Pedestrian Navigation",
7th IEEE and ACM International Symposium on Mixed and Augmented Reality (ISMAR 2008), Cambridge, UK, September 2008.
- R. Vedantham, A. Nosratinia, "Low bit rate video transmission over wireless channels",
4th Annual TxTEC Conference, Arlington, TX, January 2003.
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