Proceedings ArticleDOI
Text localization, enhancement and binarization in multimedia documents
Christian Wolf,J.-M. Jolion,Francoise Chassaing +2 more
- Vol. 2, pp 1037-1040
TLDR
An algorithm to localize artificial text in images and videos using a measure of accumulated gradients and morphological post processing to detect the text is presented and the quality of the localized text is improved by robust multiple frame integration.Abstract:
The systems currently available for content based image and video retrieval work without semantic knowledge, i.e. they use image processing methods to extract low level features of the data. The similarity obtained by these approaches does not always correspond to the similarity a human user would expect. A way to include more semantic knowledge into the indexing process is to use the text included in the images and video sequences. It is rich in information but easy to use, e.g. by key word based queries. In this paper we present an algorithm to localize artificial text in images and videos using a measure of accumulated gradients and morphological post processing to detect the text. The quality of the localized text is improved by robust multiple frame integration. Anew technique for the binarization of the text boxes is proposed. Finally, detection and OCR results for a commercial OCR are presented.read more
Citations
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Book ChapterDOI
Extraction of handwritten text from carbon copy medical form images
Robert Milewski,Venu Govindaraju +1 more
TL;DR: This paper presents a methodology for separating handwritten foreground pixels, from background pixels, in carbon copied medical forms, which is a vital step in automating emergency medical health surveillance systems.
Text detection and character recognition using fuzzy image processing
Mohanad Alata,Mohammad Al-Shabi +1 more
TL;DR: The presented approach will take each color alone, and there will be no negative text in the whole image because the negative text to a color will be normal text for another.
Journal ArticleDOI
2DVTE: A two-directional videotext extractor for rapid and elaborate design
TL;DR: A real-time system on detecting, localizing, and extracting the scrolling videotexts with only one frame usage instead of multi-frame integration in other literatures is proposed.
Journal ArticleDOI
Parallel nonparametric binarization for degraded document images
Xin Chen,Liang Lin,Yuefang Gao +2 more
TL;DR: This work develops a CUDA well-suited parallel algorithm of Sauvola's method and implements it on Kepler GPUs with CUDA 5.0, showing that the proposed method outperforms the state-of-the-art methods.
Text Localization, Extraction and Inpainting in Color Images using Combined Structural and Textural Features
TL;DR: A new algorithm for subtitle text detection, extraction and text inpainting in color images, which considers priority for inPainting of pixels, which results in perfect reconstruction in areas with texture variation.
References
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IEEE transactions on pattern analysis and machine intelligence
TL;DR: This special issue aims at gathering the recent advances in learning with shared information methods and their applications in computer vision and multimedia analysis and addressing interesting real-world computer Vision and multimedia applications.
Journal ArticleDOI
Goal-directed evaluation of binarization methods
O.D. Trier,Anil K. Jain +1 more
TL;DR: This paper presents a methodology for evaluation of low-level image analysis methods, using binarization (two-level thresholding) as an example, and defines the performance of the character recognition module as the objective measure.
Proceedings ArticleDOI
Automatic text location in images and video frames
Anil K. Jain,Bin Yu +1 more
TL;DR: Compared with some traditional text location methods, this method has the following advantages: 1) low computational cost; 2) robust to font size; and 3) high accuracy.