loading
Documents

Research.Publish.Connect.

Paper

Paper Unlock

Authors: J. M. H. du Buf ; K. Terzic and J. M. F. Rodrigues

Affiliation: University of the Algarve, Portugal

ISBN: 978-989-8565-36-5

Keyword(s): Complex Gabor Filters, Phase, Disparity, Lines, Edges, Localisation.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Artificial Intelligence ; Biomedical Engineering ; Biomedical Signal Processing ; Computer Vision, Visualization and Computer Graphics ; Data Manipulation ; Health Engineering and Technology Applications ; Human-Computer Interaction ; Medical Image Detection, Acquisition, Analysis and Processing ; Methodologies and Methods ; Neurocomputing ; Neurotechnology, Electronics and Informatics ; Pattern Recognition ; Physiological Computing Systems ; Sensor Networks ; Soft Computing ; Wavelet Transform

Abstract: Complex Gabor filters with phases in quadrature are often used to model even- and odd-symmetric simple cells in the primary visual cortex. In stereo vision, the phase difference between the responses of the left and right views can be used to construct a disparity or depth map. Various constraints can be applied in order to construct smooth maps, but this leads to very imprecise depth transitions. In this theoretical paper we show, by using lines and edges as image primitives, the origin of the localisation problem. We also argue that disparity should be attributed to lines and edges, rather than trying to construct a 3D surface map in cortical area V1. We derive allowable translation ranges which yield correct disparity estimates, both for left-view centered vision and for cyclopean vision.

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 3.83.192.109

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
M. H. du Buf, J.; Terzic, K. and M. F. Rodrigues, J. (2013). Phase-differencing in Stereo Vision - Solving the Localisation Problem.In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013) ISBN 978-989-8565-36-5, pages 254-263. DOI: 10.5220/0004349702540263

@conference{biosignals13,
author={J. M. H. du Buf. and K. Terzic. and J. M. F. Rodrigues.},
title={Phase-differencing in Stereo Vision - Solving the Localisation Problem},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013)},
year={2013},
pages={254-263},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004349702540263},
isbn={978-989-8565-36-5},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013)
TI - Phase-differencing in Stereo Vision - Solving the Localisation Problem
SN - 978-989-8565-36-5
AU - M. H. du Buf, J.
AU - Terzic, K.
AU - M. F. Rodrigues, J.
PY - 2013
SP - 254
EP - 263
DO - 10.5220/0004349702540263

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.