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Minimal Structure and Motion Problems for TOA and TDOA Measurements with Collinearity Constraints

Författare

Redaktör

  • Maria De Marsico
  • Ana Fred

Summary, in English

Structure from sound can be phrased as the problem of determining the position of a number of microphones and a number of sound sources given only the recorded sounds. In this paper we study minimal structure from sound problems in both TOA (time of arrival) and TDOA (time difference of arrival) settings with collinear constraints on e.g. the microphone positions. Three such minimal cases are analyzed and solved with efficient and numerically stable techniques. An experimental validation of the solvers are performed on both simulated and real data. In the paper we also show how such solvers can be utilized in a RANSAC framework to perform robust matching of sound features and then used as initial estimates in a robust non-linear leastsquares optimization.

Publiceringsår

2013

Språk

Engelska

Sidor

425-429

Publikation/Tidskrift/Serie

2nd International Conference on Pattern Recognition Applications and Methods, Proceedings of

Dokumenttyp

Konferensbidrag

Förlag

SciTePress

Ämne

  • Mathematics
  • Computer Vision and Robotics (Autonomous Systems)

Nyckelord

  • Sensor Calibration
  • Polynomials
  • Action Matrix Method
  • TDOA
  • TOA

Conference name

2nd International Conference on Pattern Recognition Applications and Methods (ICPRAM 2013)

Conference date

2013-02-15 - 2013-02-18

Conference place

Barcelona, Spain

Status

Published

Forskningsgrupp

  • Mathematical Imaging Group

ISBN/ISSN/Övrigt

  • ISBN: 978-989-8565-41-9