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Reports by Author

Kannan Ramchandran


Click on the titles below to find US government-authored or -collected reports written by Kannan Ramchandran

Total Results: 3 Results per page:
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Semi-Definite Programming Relaxation for Non-Line-of-Sight Localization 18 Aug 2012 9 pages
Authors:  Venakatesan Ekambaram; Giulia Fanti; Kannan Ramchandran; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
The full text of this report is available for sale.We consider the problem of estimating the locations of a set of points in a k-dimensional euclidean space given a subset of the pairwise distance measurements between the points. We focus on the case when some fraction of these measurements can be arbitrarily corrupted by large additive noise. Given that the problem is highly non-convex, we propose a simple semidefinite programming relaxation that can be efficiently solved using standard algorithms. ...


Cooperative Non-Line-of-Sight Localization Using Low-rank + Sparse Matrix Decomposition 10 May 2012 9 pages
Authors:  Venkatesan Ekambaram; Kannan Ramchandran; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
The full text of this report is available for sale.We consider the problem of estimating the locations of a set of points in a k-dimensional euclidean space given a subset of the pairwise distance measurements between the points. We focus on the case when some fraction of these measurements can be arbitrarily corrupted by large additive noise. This is motivated by applications like sensor networks, molecular conformation and manifold learning where the measurement process can induce large bias errors ...


Unified Platform-Independent Airborne Networking Architecture for Video Compression Jul 2008 26 pages
Authors:  Kannan Ramchandran; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
The full text of this report is available for sale.It is highly desirable to have a video coding framework that can flexibly distributed coding complexity between the video encoder and decoder. However, today's video compression techniques impose a rigid computational complexity distribution between the video encoder and decoder. Specifically, video decoders are very simple but encoders are computationally complex as they need to carry out motion estimation and mode decision. Distributed video coding has shown great potentials in enabling ...


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