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

Dinh Nguyen, Mathieu Delalandre, Donatello Conte, The Pham

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.

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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 - Volume 5: VISAPP, ISBN 978-989-758-354-4, pages 344-353. DOI: 10.5220/0007361503440353


in Bibtex Style

@conference{visapp19,
author={Dinh Nguyen and Mathieu Delalandre and Donatello Conte and The 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 - 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 - 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