Mr. Vinay Kotamraju Profile

Vinay Kotamraju

at MacDonald Dettwiler and Associates Ltd

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Author

Publications (7)

Proceedings Article | 25 May 2012 Paper

Real-time lidar-based place recognition using distinctive shape descriptors

Jack Collier, Stephen Se, Vinay Kotamraju, Piotr Jasiobedzki

Proceedings Volume 8387, 83870P (2012) https://doi.org/10.1117/12.918760

KEYWORDS: LIDAR, Global Positioning System, Shape analysis, Detection and tracking algorithms, Sensors, Feature extraction, Light sources and illumination, Algorithm development, Environmental sensing, Expectation maximization algorithms

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Proceedings Article | 25 May 2012 Paper

Automated motion imagery exploitation for surveillance and reconnaissance

Stephen Se, France Laliberte, Vinay Kotamraju, Melanie Dutkiewicz

Proceedings Volume 8386, 83860E (2012) https://doi.org/10.1117/12.920498

KEYWORDS: Video, Video surveillance, Video acceleration, 3D modeling, Video processing, Surveillance, Reconnaissance, Geographic information systems, Calibration, Visualization

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Airborne surveillance and reconnaissance are essential for many military missions. Such capabilities are critical for troop protection, situational awareness, mission planning and others, such as post-operation analysis / damage assessment. Motion imagery gathered from both manned and unmanned platforms provides surveillance and reconnaissance information that can be used for pre- and post-operation analysis, but these sensors can gather large amounts of video data. It is extremely labour-intensive for operators to analyse hours of collected data without the aid of automated tools. At MDA Systems Ltd. (MDA), we have previously developed a suite of automated video exploitation tools that can process airborne video, including mosaicking, change detection and 3D reconstruction, within a GIS framework. The mosaicking tool produces a geo-referenced 2D map from the sequence of video frames. The change detection tool identifies differences between two repeat-pass videos taken of the same terrain. The 3D reconstruction tool creates calibrated geo-referenced photo-realistic 3D models. The key objectives of the on-going project are to improve the robustness, accuracy and speed of these tools, and make them more user-friendly to operational users. Robustness and accuracy are essential to provide actionable intelligence, surveillance and reconnaissance information. Speed is important to reduce operator time on data analysis. We are porting some processor-intensive algorithms to run on a Graphics Processing Unit (GPU) in order to improve throughput. Many aspects of video processing are highly parallel and well-suited for optimization on GPUs, which are now commonly available on computers. Moreover, we are extending the tools to handle video data from various airborne platforms and developing the interface to the Coalition Shared Database (CSD). The CSD server enables the dissemination and storage of data from different sensors among NATO countries. The CSD interface allows operational users to search and retrieve relevant video data for exploitation.

Proceedings Article | 18 May 2012 Paper

Adaptive polarimetric change detection and interpretation based on supervised ground-cover classification using SAR and optical imagery

Mohsen Ghazel, Jennifer Busler, Vinay Kotamraju, Corey Froese, Guy Aubé

Proceedings Volume 8392, 83921G (2012) https://doi.org/10.1117/12.918811

KEYWORDS: Polarimetry, Synthetic aperture radar, Image segmentation, Image classification, Scattering, Backscatter, Vegetation, Agriculture, Adaptive optics, Image filtering

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Proceedings Article | 4 May 2012 Paper

SAR change detection for monitoring the impact of the rehabilitation of the Arghandab irrigation system in Afghanistan

Jennifer Busler, Mohsen Ghazel, Vinay Kotamraju, Lisa Vandehei, Guy Aubé, Corey Froese

Proceedings Volume 8361, 83610G (2012) https://doi.org/10.1117/12.918532

KEYWORDS: Vegetation, Synthetic aperture radar, Agriculture, Polarimetry, Image classification, Visualization, Remote sensing, Imaging systems, Detection and tracking algorithms, Scattering

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Proceedings Article | 3 May 2012 Paper

A geometry-based image search engine for advanced RADARSAT-1/2 GIS applications

Vinay Kotamraju, Bernhard Rabus, Jennifer Busler

Proceedings Volume 8396, 839607 (2012) https://doi.org/10.1117/12.920827

KEYWORDS: Synthetic aperture radar, Interferometric synthetic aperture radar, Databases, Geographic information systems, Sensors, Image visualization, Visualization, Human-machine interfaces, Satellites, Image retrieval

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Proceedings Article | 13 May 2010 Paper

Workbench for 3D target detection and recognition from airborne motion stereo and ladar imagery

Simon Roy, Stephen Se, Vinay Kotamraju, Jean Maheux, Christian Nadeau, Vincent Larochelle, Jonathan Fournier

Proceedings Volume 7696, 76960M (2010) https://doi.org/10.1117/12.849567

KEYWORDS: 3D modeling, 3D acquisition, 3D image processing, Data modeling, Clouds, Databases, Video, Detection and tracking algorithms, RGB color model, LIDAR

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Proceedings Article | 29 March 2007 Paper

Estimation of 3D myocardial motion from tagged MRI using LDDMM

Vinay Kotamraju, Elliot McVeigh, Mirza Faisal Beg

Proceedings Volume 6511, 65112H (2007) https://doi.org/10.1117/12.710115

KEYWORDS: Image segmentation, Motion estimation, Magnetic resonance imaging, Image registration, Tissues, Reconstruction algorithms, Visualization, 3D image processing, Medical imaging, Modulation

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Showing 5 of 7 publications

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