Comparing Local Descriptors and Bags of Visual Words to Deep Convolutional Neural Networks for Plant Recognition

Pornntiwa Pawara, Emmanuel Okafor, Olarik Surinta, Lambert Schomaker, Marco Wiering

2017

Abstract

The use of machine learning and computer vision methods for recognizing different plants from images has attracted lots of attention from the community. This paper aims at comparing local feature descriptors and bags of visual words with different classifiers to deep convolutional neural networks (CNNs) on three plant datasets; AgrilPlant, LeafSnap, and Folio. To achieve this, we study the use of both scratch and fine-tuned versions of the GoogleNet and the AlexNet architectures and compare them to a local feature descriptor with k-nearest neighbors and the bag of visual words with the histogram of oriented gradients combined with either support vector machines and multi-layer perceptrons. The results shows that the deep CNN methods outperform the hand-crafted features. The CNN techniques can also learn well on a relatively small dataset, Folio.

Paper Citation

in Harvard Style

Pawara P., Okafor E., Surinta O., Schomaker L. and Wiering M. (2017). Comparing Local Descriptors and Bags of Visual Words to Deep Convolutional Neural Networks for Plant Recognition . In Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-758-222-6, pages 479-486. DOI: 10.5220/0006196204790486

in Bibtex Style

@conference{icpram17,
author={Pornntiwa Pawara and Emmanuel Okafor and Olarik Surinta and Lambert Schomaker and Marco Wiering},
title={Comparing Local Descriptors and Bags of Visual Words to Deep Convolutional Neural Networks for Plant Recognition},
booktitle={Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2017},
pages={479-486},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006196204790486},
isbn={978-989-758-222-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - Comparing Local Descriptors and Bags of Visual Words to Deep Convolutional Neural Networks for Plant Recognition
SN - 978-989-758-222-6
AU - Pawara P.
AU - Okafor E.
AU - Surinta O.
AU - Schomaker L.
AU - Wiering M.
PY - 2017
SP - 479
EP - 486
DO - 10.5220/0006196204790486