Extraction of reference lines from documents with grey-level background using sub-images of wavelets

Author

Tang, Yuan Y. ; Ma, Hong ; Xi, Dihua ; Cheng, Yi ; Suen, Ching Y.

Author_Institution

Center for Pattern Recognition, Concordia Univ., Montreal, Que., Canada

Volume

2

fYear

1995

fDate

14-16 Aug 1995

Firstpage

571

Abstract

Based on wavelets, a new theoretical method has been developed to process form documents. In this method, two-dimensional multiresolution analysis (MSA), wavelet decomposition algorithm, and compactly supported orthonormal wavelets are used to transform a document image into sub-images. According to these sub-images, the reference lines of forms can be extracted, and knowledge about the geometric structure of the document can be acquired. Experiments prove that this new method can be applied to process documents with promising results

Keywords

document image processing; wavelet transforms; document image; form documents; grey-level background; multiresolution analysis; orthonormal wavelets; reference lines; sub-images; wavelet decomposition algorithm; wavelets; Extraterrestrial measurements; Hilbert space; Image processing; Machine intelligence; Multiresolution analysis; Pattern recognition; Signal processing; Signal processing algorithms; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Document Analysis and Recognition, 1995., Proceedings of the Third International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-8186-7128-9

Type

conf

DOI

10.1109/ICDAR.1995.601961

Filename

601961