Ananth Ranganathan
Honda (United States), Georgia Institute of Technology, Honda (Japan)
Papers
20
Total Citations
1,549
H-Index
13
About
Ananth Ranganathan is a prominent robotics and computer vision researcher whose work has fundamentally shaped the field of simultaneous localization and mapping (SLAM) and autonomous robot navigation. His most celebrated contribution, iSAM: Incremental Smoothing and Mapping (2008), introduced a groundbreaking approach to the SLAM problem through fast incremental matrix factorization, enabling robots to efficiently and exactly update their understanding of an environment in real time — a paper that has accumulated over 1,059 citations and remains a cornerstone reference in the field. Beyond this landmark work, Ranganathan has made significant contributions to topological mapping, developing probabilistic frameworks including Rao-Blackwellized particle filters and the Online Probabilistic Topological Mapping algorithm that allow robots to infer environmental structure from sequential measurements. His research extends into semantic mapping, where he pioneered object-based place representations to support richer human-robot interaction. Additional contributions span stereo-based 3D reconstruction for navigation, place labeling via changepoint detection, and reactive robot architectures. Across more than a decade of influential research, Ranganathan has consistently advanced robots' ability to perceive, represent, and reason about their environments with remarkable mathematical rigor.
Research Focus
Key Achievements
Top Papers
- 1iSAM: Incremental Smoothing and Mapping1,059 citations · 2008
- 2Semantic Modeling of Places using Objects96 citations · 2007
- 3Online probabilistic topological mapping67 citations · 2011
- 4PLISS: labeling places using online changepoint detection49 citations · 2012
- 5Stereo depth map fusion for robot navigation46 citations · 2011
- 6Fast 3D pose estimation with out-of-sequence measurements37 citations · 2007
- 7A reactive robot architecture with planning on demand33 citations · 2004
- 8Loopy SAM32 citations · 2007
- 9A Rao-Blackwellized particle filter for topological mapping32 citations · 2006
- 10Data driven MCMC for Appearance-based Topological Mapping20 citations · 2005