Performance Evaluation of Real-time and Scale-invariant LoG Operators for Text Detection

Dinh Cong Nguyen, Mathieu Delalandre, Donatello Conte, The Anh Pham

2019

Abstract

This paper presents a state-of-the-art and a performance evaluation of real-time text detection methods, having particular focus on the family of Laplacian of Gaussian (LoG) operators with scale-invariance. The computational complexity of operators is discussed and an adaptation to text detection is obtained through the scale-space representation. In addition, a groundtruthing process and a characterization protocol are proposed, performance evaluation is driven with repeatability and processing time. The evaluation highlights a near-exact approximation with real-time operators at one to two orders of magnitude of execution time. The real-time operators are adapted to recent camera devices to process high resolution images. Perspectives are provided for operator robustness, optimization and characterization of the detection strategy.

Paper Citation

in Harvard Style

Nguyen D., Delalandre M., Conte D. and Pham T. (2019). Performance Evaluation of Real-time and Scale-invariant LoG Operators for Text Detection. In Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 5: VISAPP; ISBN 978-989-758-354-4, SciTePress, pages 344-353. DOI: 10.5220/0007361503440353

in Bibtex Style

@conference{visapp19,
author={Dinh Cong Nguyen and Mathieu Delalandre and Donatello Conte and The Anh Pham},
title={Performance Evaluation of Real-time and Scale-invariant LoG Operators for Text Detection},
booktitle={Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 5: VISAPP},
year={2019},
pages={344-353},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007361503440353},
isbn={978-989-758-354-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 5: VISAPP
TI - Performance Evaluation of Real-time and Scale-invariant LoG Operators for Text Detection
SN - 978-989-758-354-4
AU - Nguyen D.
AU - Delalandre M.
AU - Conte D.
AU - Pham T.
PY - 2019
SP - 344
EP - 353
DO - 10.5220/0007361503440353
PB - SciTePress