Matthieu Cord

Text detection in street level image

By Jonathan Fabrizio, Beatriz Marcotegui, Matthieu Cord

2013-11-05

In Pattern Analysis and Applications

Abstract Text detection system for natural images is a very challenging task in Computer Vision. Image acquisition introduces distortion in terms of perspective, blurring, illumination, and characters which may have very different shape, size, and color. We introduce in this article a full text detection scheme. Our architecture is based on a new process to combine a hypothesis generation step to get potential boxes of text and a hypothesis validation step to filter false detections.

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SnooperText: A multiresolution system for text detection in complex visual scenes

By Rodrigo Minetto, Nicolas Thome, Matthieu Cord, Jonathan Fabrizio, Beatriz Marcotegui

2010-12-31

In Proceedings of the IEEE international conference on image processing (ICIP)

Abstract Text detection in natural images remains a very challenging task. For instance, in an urban context, the detection is very difficult due to large variations in terms of shape, size, color, orientation, and the image may be blurred or have irregular illumination, etc. In this paper, we describe a robust and accurate multiresolution approach to detect and classify text regions in such scenarios. Based on generation/validation paradigm, we first segment images to detect character regions with a multiresolution algorithm able to manage large character size variations.

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