Human Recognition in RGBD Combining Object Detectors and Conditional Random Fields

Konstantinos Amplianitis, Ronny Hänsch, Ralf Reulke

2016

Abstract

This paper addresses the problem of detecting and segmenting human instances in a point cloud. Both fields have been well studied during the last decades showing impressive results, not only in accuracy but also in computational performance. With the rapid use of depth sensors, a resurgent need for improving existing state-of-the-art algorithms, integrating depth information as an additional constraint became more ostensible. Current challenges involve combining RGB and depth information for reasoning about location and spatial extent of the object of interest. We make use of an improved deformable part model algorithm, allowing to deform the individual parts across multiple scales, approximating the location of the person in the scene and a conditional random field energy function for specifying the object’s spatial extent. Our proposed energy function models up to pairwise relations defined in the RGBD domain, enforcing label consistency for regions sharing similar unary and pairwise measurements. Experimental results show that our proposed energy function provides a fairly precise segmentation even when the resulting detection box is imprecise. Reasoning about the detection algorithm could potentially enhance the quality of the detection box allowing capturing the object of interest as a whole.

Paper Citation

in Harvard Style

Amplianitis K., Hänsch R. and Reulke R. (2016). Human Recognition in RGBD Combining Object Detectors and Conditional Random Fields . In Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016) ISBN 978-989-758-175-5, pages 655-663. DOI: 10.5220/0005786006550663

in Bibtex Style

@conference{visapp16,
author={Konstantinos Amplianitis and Ronny Hänsch and Ralf Reulke},
title={Human Recognition in RGBD Combining Object Detectors and Conditional Random Fields},
booktitle={Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016)},
year={2016},
pages={655-663},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005786006550663},
isbn={978-989-758-175-5},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016)
TI - Human Recognition in RGBD Combining Object Detectors and Conditional Random Fields
SN - 978-989-758-175-5
AU - Amplianitis K.
AU - Hänsch R.
AU - Reulke R.
PY - 2016
SP - 655
EP - 663
DO - 10.5220/0005786006550663