As part of our effort to develop an automated data entry system to identify and convert bibliographic information from paper-based documents to electronic format for inclusion in the MEDLINE database used worldwide by biomedical researchers and clinicians, we have implemented a new technique for automatically labeling zones from scanned images with meaningful labels such as title, author, affi...

This paper presents a selective local thresholding method of a camera based document image for applying character segmentation. It is very difficult to binarize a camera based document image due to inconsistent lighting condition. It makes difficulties of character extraction and recognition. A selective local thresholding method in character region can reduce illumination effect and extract pr...

Recently, the digitalization of the astronomical scientific heritage has been considered an important task that can facilitate much researches in astronomy. The creation of digital libraries and databases of astronomical photographic plates brings up the problem of digitalization astronomical logbooks , since the data contained in them is crucial for the usage of the plates . An optical charact...

Rotation of the binary image of a document page for correcting the skew in the case of OCR or signature verification systems entails disfigurement of the shape of the characters, which brings down the performance of the pattern classifier. An elegant algorithm is presented in this paper for distortion-free rotation. Multirate signal processing principles are applied to solve this problem, which...

in this research, first of all, the existing problems in fragmentation measurement are reviewed for the sake of its fast and reliable evaluation. then, the available methods used for evaluation of blast results are mentioned. the produced errors especially in recognizing the rock fragments in computer-aided methods, and also, the importance of determination of their sizes in the image analysis ...

In this paper, we present a novel method for processing double-sided historic handwritten documents using wavelets. The method is specially designed to remove the interfering strokes from the reverse side due to ink sipping through pages after long periods of storage. The proposed method works by first matching both sides of a document page such that the interfering strokes are mapped with the ...

In this paper we attempt to face common problems of handwritten documents such as nonparallel text lines in a page, hill and dale writing, slanted and connected characters. Towards this end an integrated system for document image preprocessing is presented. This system consists of the following modules: skew angle estimation and correction, line and word segmentation, slope and slant correction...

Over the past few decades, embedded systems have been widely infiltrated into our daily lives. Prominent examples are cellular phones, personal digital assistants, digital television set-top boxes, web-pads, and mp3 players. New kinds of embedded devices are being introduced continually for various purposes. Embedded systems have different combinations and prioritizations of objectives and cons...

can be interpreted as matching of an input graph (keyword) with a large set of graphs (document). More formally, in order to spot a certain keyword wi, all p graph instances gi1, ... , gip of that word wi occurring in the training set are matched against all graph words in each text line using our adapted graph matching procedure. That is, for a given word wi and a specific text line s pairwise...

First we describe our experiences with document processing support. Then we consider the similarities between document processing and work-ow management and the relation of both to ooce information systems. In many cases ooce tasks create, manipulate and disseminate documents. While the evolution of modern ooce technology enables people to process documents more eeciently, the same technology c...