loading
Documents

Research.Publish.Connect.

Paper

Paper Unlock

Authors: Marc Ebner and Johannes Hansen

Affiliation: Ernst-Moritz-Arndt-Universität Greifswald and Institut für Mathematik und Informatik, Germany

ISBN: 978-989-758-011-6

Keyword(s): Color Constancy, Space Average Color, Depth Map, Color, Kinect.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Biomedical Engineering ; Biomedical Signal Processing ; Computer Vision, Visualization and Computer Graphics ; Medical Image Detection, Acquisition, Analysis and Processing

Abstract: A human observer is able to judge the color of objects independent of the illuminant. In contrast, a digital sensor (or the retinal receptors for that matter) only measure reflected light which varies with the illuminant. The brain is somehow able to compute a color constant descriptor from the light falling onto the retina. We have improved a well known color constancy algorithm based on local space average color. This color constancy algorithm can be mapped to the different visual processing stages of the human brain. We have extended this algorithm by incorporating depth information. The idea is that wherever there are depth discontinuities there may also be a change of the illuminant in the image. Hence, depth discontinuities are used to separate different illuminants. This allows us to better estimate the local illumination and allows us to compute an improved color constant descriptor. We also compute local space average depth to decide locally whether to average data from retin al sensors uniformly or non-uniformly. We show how our algorithm works on real world scenes. Depth information is obtained from a standard Kinect sensor. (More)

PDF ImageFull Text

Download
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 35.171.183.163

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:
Ebner, Marc and Hansen, J. (2014). Improving Color Constancy in the Presence of Multiple Illuminants using Depth Information.In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014) ISBN 978-989-758-011-6, pages 133-140. DOI: 10.5220/0004743601330140

@conference{biosignals14,
author={Ebner, Marc and Johannes Hansen.},
title={Improving Color Constancy in the Presence of Multiple Illuminants using Depth Information},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)},
year={2014},
pages={133-140},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004743601330140},
isbn={978-989-758-011-6},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)
TI - Improving Color Constancy in the Presence of Multiple Illuminants using Depth Information
SN - 978-989-758-011-6
AU - Ebner, Marc
AU - Hansen, J.
PY - 2014
SP - 133
EP - 140
DO - 10.5220/0004743601330140

Login or register to post comments.

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