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Volume: 28 | Article ID: art00004
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A Strip-based Fast Text Detection for Low memory devices
  DOI :  10.2352/ISSN.2470-1173.2016.19.COIMG-162  Published OnlineFebruary 2016
Abstract

This paper proposes a strip-based fast and robust text detection algorithm for low cost embedded devices such as scanners/printers that is designed to operate with minimal memory requirements. Generally speaking, the unavailability of the whole document at once along with other memory and processing speed constraints pose a significant challenge. While conventional approaches process the whole image/page with intensive algorithms to get a desirable result, our algorithm processes strips of the page very efficiently in terms of speed and memory allocation. To this effect, a DCT block based approach along with appropriate pre and post-processing algorithms is used to create a map of text pixels from the original page while suppressing any non-text background, graphics or images. The proposed algorithm is able to detect text pixels from documents of varying backgrounds, colors and non-textual portions. This algorithm is simulated in both MATLAB and C programming languages and tested using a Beagle Board to simulate a low processing CPU on a wide variety of documents. The average execution time for a full 8.5x11 page scanned at 300 dpi is approximately 0.5 sec. in C and about 3 seconds on the Beagle board.

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Jobin J Mathewa, Yue Wang, Eli Saber, David Larson, Peter Bauer, George Kerby, Jerry Wagner, "A Strip-based Fast Text Detection for Low memory devicesin Proc. IS&T Int’l. Symp. on Electronic Imaging: Computational Imaging XIV,  2016,  https://doi.org/10.2352/ISSN.2470-1173.2016.19.COIMG-162

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