Publication
Title
3D sparse imaging in biosonar scene analysis
Author
Abstract
Bats can navigate through foliage thanks to their biosonar. To build an image of their environment they emit ultrasonic pulses and analyse the corresponding echo signals which consist of a complex superposition of a set of highly overlapping reflected pulses coming from the targets at their different positions. We propose to use a sparse representation of echoes in overcomplete dictionaries to perform 3D imaging using biosonar signals. We show that even if the echosignal is a superposition of highly overlapping echoes the algorithm can efficiently reconstruct the image only from a single measurement. Those results can be useful from a robot sensor perspective where the robot has to find a free path. It can also help to understand better how bats can efficiently navigate through dense foliage.
Language
English
Source (book)
SPARS'09 :Signal Processing with Adaptive Sparse Structured Representations (2009)
Publication
2009
Volume/pages
5 p.
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Record
Identification
Creation 31.01.2013
Last edited 12.09.2013
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