Systems and methods for VSLAM optimization

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United States of America Patent

PATENT NO 9910444
SERIAL NO

15014934

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention is related to methods and apparatus that use a visual sensor and dead reckoning sensors to process Simultaneous Localization and Mapping (SLAM). These techniques can be used in robot navigation. Advantageously, such visual techniques can be used to autonomously generate and update a map. Unlike with laser rangefinders, the visual techniques are economically practical in a wide range of applications and can be used in relatively dynamic environments, such as environments in which people move. Certain embodiments contemplate improvements to the front-end processing in a SLAM-based system. Particularly, certain of these embodiments contemplate a novel landmark matching process. Certain of these embodiments also contemplate a novel landmark creation process. Certain embodiments contemplate improvements to the back-end processing in a SLAM-based system. Particularly, certain of these embodiments contemplate algorithms for modifying the SLAM graph in real-time to achieve a more efficient structure.

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Patent Owner(s)

Patent OwnerAddress
IROBOT CORPORATIONBEDFORD MA 01730

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eade, Ethan Seattle, US 60 1648
Fong, Philip South Pasadena, US 33 1304
Munich, Mario E La Canada, US 35 1274

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