NDLI: Skeletonization by Gradient Regularization and Diffusion

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2015 13th International Conference on Document Analysis and Recognition (ICDAR)

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2011 International Conference on Document Analysis and Recognition

2009 10th International Conference on Document Analysis and Recognition

Ninth International Conference on Document Analysis and Recognition (ICDAR 2007)

Volume 2 - 2007

Ninth International Conference on Document Analysis and Recognition - Title page

Ninth International Conference on Document Analysis and Recognition - Copyright

Welcome from the Honourary Chair

Welcome from the General Chairs

Message from the PC Chairs

Conference Committees

Assessing and Improving the Quality of Document Images Acquired with Portable Digital Cameras

A Multi-Stage Strategy to Perspective Rectification for Mobile Phone Camera-Based Document Images

Degraded Character Recognition by Complementary Classifiers Combination

Middle Zone Component Extraction and Recognition of Telugu Document Image

An SVM-Based High-accurate Recognition Approach for Handwritten Numerals by Using Difference Features

Retrieval of Handwritten Lines in Historical Documents

Text Line Detection in Unconstrained Handwritten Documents Using a Block-Based Hough Transform Approach

Systematic Multi-Path HMM Topology Design for Online Handwriting Recognition of East Asian Characters

Bibliographic Meta-Data Extraction Using Probabilistic Finite State Transducers

Perceptive Vision for Headline Localisation in Bangla Handwritten Text Recognition

Segmentation of Text and Graphics from Document Images

Layout Based Information Extraction from HTML Documents

An Overview of the Tesseract OCR Engine

Symbol Recognition Using a 2-class Hierarchical Model of Choquet Integrals

Deriving Symbol Dependent Edit Weights for Text Correction_The Use of Error Dictionaries

Arabic Handwriting Recognition Using Variable Duration HMM

Curvelets Based Queries for CBIR Application in Handwriting Collections

Two Approaches for Arabic Script Recognition-Based Segmentation Using the Hough Transform

Extracting _Carbon Copy_ Names and Organizations from a Heterogeneous Document Collection

A General Method of Segmentation-Recognition Collaboration Applied to Pairs of Touching and Overlapping Symbols

An Analytic Word Recognition Algorithm Using a Posteriori Probability

Predictive DP Matching for On-Line Character Recognition

Matching Local Descriptors for Image Identification on Cultural Databases

Fast and Accurate Detection of Document Skew and Orientation

Information Management System Using Structure Analysis of Paper/Electronic Documents and Its Applications

Mathpad: A Fuzzy Logic-Based Recognition System for Handwritten Mathematics

Pàtrà: A Novel Document Architecture for Integrating Handwriting with Audio-Visual Information

Integrated Segmentation and Recognition of Mixed Chinese/English Document

Appearance Based Models in Document Script Identification

Logical Structure Analysis for Form Images with Arbitrary Layout by Belief Propagation

An Automatic Mathematical Expression Understanding System

Modified Dynamic Time Warping for Stroke-Based On-line Signature Verification

On the Use of Context-Dependent Modeling Units for HMM-Based Offline Handwriting Recognition

Off-line Signature Verification Using Enhanced Modified Direction Features in Conjunction with Neural Classifiers and Support Vector Machines

A Multi-Agent System for Hand-drawn Diagram Recognition

Enhancement of Old Manuscript Images

Handwritten Numeral Recognition of Six Popular Indian Scripts

Text Input System Using Online Overlapped Handwriting Recognition for Mobile Devices

Machine Dating of Handwritten Manuscripts

Off-line Handwritten Signature GPDS-960 Corpus

Text-Independent Writer Identification and Verification on Offline Arabic Handwriting

A New Physically Motivated Warping Model for Form Drop-Out

Global Contour Lines Reconstruction in Topographic Maps

Combination of OCR Engines for Page Segmentation Based on Performance Evaluation

An Indexing Method for Graphical Documents

Document Processing via Trained Morphological Operators

Content-level Annotation of Large Collection of Printed Document Images

Bibliographic Attributes Extraction with Layer-upon-Layer Tagging

Guido: A Musical Score Recognition System

A Coupled Mean Shift-Anisotropic Diffusion Approach for Document Image Segmentation and Restoration

Google Book Search: Document Understanding on a Massive Scale

Towards Explainable Writer Verification and Identification Using Vantage Writers

A New Method for Writer Identification and Verification Based on Farsi/Arabic Handwritten Texts

Off-line Signature Verification System Performance against Image Acquisition Resolution

Writer Identification Using Steered Hermite Features and SVM

On Computing Strength of Evidence for Writer Verification

Mathematical Formulae Recognition Using 2D Grammars

A Unified Framework for Symbol Segmentation and Recognition of Handwritten Mathematical Expressions

Hybrid Mathematical Symbol Recognition Using Support Vector Machines

Automatic Document Logo Detection

A Bayesian Network Approach to Mode Detection for Interactive Maps

Robust Binarization for Video Text Recognition

A Parametric Spectral-Based Method for Verification of Text in Videos

Camera-Based Graphical Symbol Detection

A Weighted Finite-State Framework for Correcting Errors in Natural Scene OCR

Exploiting Videotext _Events_ for Improved Videotext Detection

Skew Detection for Chinese Handwriting by Horizontal Stroke Histogram

LDA-Based Compound Distance for Handwritten Chinese Character Recognition

Building Compact MQDF Classifier for Off-line Handwritten Chinese Characters by Subspace Distribution Sharing

Handwritten Chinese Character Recognition Using Modified LDA and Kernel FDA

Example-Based Logical Labeling of Document Title Page Images

A Data Mining Approach to Reading Order Detection

A General Approach for Partitioning Web Page Content Based on Geometric and Style Information

Searching for Tables in Digital Documents

A Pen-Based Interface for Real-Time Document Edition

Computer Assisted Transcription of Handwritten Text Images

A Method for Image Local-Difference Visualization

iGesture: A General Gesture Recognition Framework

Combination of HMM-Based Classifiers for the Recognition of Arabic Handwritten Words

A hybrid approach for off-line Arabic handwriting recognition based on a Planar Hidden Markov modeling

Shape-Based Alphabet for Off-line Arabic Handwriting Recognition

Comparison of Different Preprocessing and Feature Extraction Methods for Offline Recognition of Handwritten ArabicWords

Fast Lexicon-Based Scene Text Recognition with Sparse Belief Propagation

Removing Shading Distortions in Camera-based Document Images Using Inpainting and Surface Fitting With Radial Basis Functions

Segmentation Based Recovery of Arbitrarily Warped Document Images

Keyword Spotting and Retrieval of Document Images Captured by a Digital Camera

Spoken Handwriting Verification Using Statistical Models

An Embedded OCR Software Architecture for Enhancing Portability

Generating Copybooks from Consistent Handwriting Styles

A Feature based on Encoding the Relative Position of a Point in the Character for Online Handwritten Character Recognition

Implementation of Content Analysis System for Recognition of Journals_ Table of Contents

Preliminary experiments in layout analysis of handwritten letters based on textural and spatial information and a 2D Markovian approach

Elastic Matching of Online Handwritten Tamil and Telugu Scripts Using Local Features

Usage-Oriented Performance Evaluation for Text Localization Algorithms

An Effective and Practical Classifier Fusion Strategy for Improving Handwritten Character Recognition

Using Random Forests for Handwritten Digit Recognition

An Approach for Multifont Arabic Characters Features Extraction Based on Contourlet Transform

A Proposition of Retrieval Tools for Historical Document Images Libraries

PRAAD: Preprocessing and Analysis Tool for Arabic Ancient Documents

The hOCR Microformat for OCR Workflow and Results

OCR Accuracy Improvement through a PDE-Based Approach

An Efficient Feature Extraction and Dimensionality Reduction Scheme for Isolated Greek Handwritten Character Recognition

Using Grammar-Based Recognizers for Symbol Completion in Diagrammatic Sketches

A Visualization Tool to Improve the Performance of a Classifier Based on Hidden Markov Models

On the Use of Lexeme Features for Writer Verification

Incremental Learning of First Order Logic Theories for the Automatic Annotations of Web Documents

Handwritten Word Recognition Using Conditional Random Fields

Three decision levels strategy for Arabic and Latin texts differentiation in printed and handwritten natures

Neural Network for the Recognition of Handwritten Tunisian City Names

On The Effects of Sampling Rate and Interpolation in HMM-Based Dynamic Signature Verification

Skeletonization by Gradient Regularization and Diffusion

Use of Legal Amount to Confirm or Correct the Courtesy Amount on Farsi Bank Checks

A Colour Document Interpretation: Application to Ancient Cadastral Maps

Arabic Handwriting Texture Analysis for Writer Identification Using the DWT-Lifting Scheme

Recognition, Understanding and Aestheticization of Freehand Drawing Flowcharts

Table Recognition and Understanding from PDF Files

Ink Discrimination Based on Co-occurrence Analysis of Visible and Infrared Images

Segmentation of Very Low Resolution Screen-Rendered Text

Quantile Linear Algorithm for Robust Binarization of Digitalized Letters

A Shared Parts Model for Document Image Recognition

Context-Sensitive Error Correction: Using Topic Models to Improve OCR

On the Applicability of Off-Line Signatures to the Fuzzy Vault Construction

Autonomous Text Capturing Robot Using Improved DCT Feature and Text Tracking

Aspects of Mathematical Expression Analysis in Arabic Handwriting

Online Handwritten Kanji Recognition Based on Inter-stroke Grammar

Physical Structure Segmentation with Projection Profile for Mathematic Formulae and Graphics in Academic Paper Images

Representing and Characterizing Handwritten Mathematical Symbols through Succinct Functional Approximation

Extracting Features of Paper-made Objects Recognized from Origami Books Based on Design Knowledge

Word image based latent semantic indexing for conceptual querying in document image databases

A Sparse and Locally Shift Invariant Feature Extractor Applied to Document Images

A Novel Hierarchical Classification Scheme for Online Tamil Character Recognition

Extraction of Arabic Words from Complex Color Image

Image Pixel Force Fields and their Application for Color Map Vectorisation

New Strategy for the On-Line Handwriting Modelling

On Using Classical Poetry Structure for Indian Language Post-Processing

On Segmentation of Documents in Complex Scripts

A Blind Indic Script Recognizer for Multi-script Documents

Streaming-Archival InkML Conversion

Performance Analysis Framework for Layout Analysis Methods

Unsupervised Newspaper Segmentation Using Language Context

Advances in Writer Identification and Verification

Arabic Handwriting Recognition Competition

Page Segmentation Competition

Handwriting Segmentation Contest

Volume 1 - 2007

Eighth International Conference on Document Analysis and Recognition (ICDAR'05)

Seventh International Conference on Document Analysis and Recognition, 2003. Proceedings.

Proceedings of Sixth International Conference on Document Analysis and Recognition

Proceedings of the Fifth International Conference on Document Analysis and Recognition. ICDAR '99 (Cat. No.PR00318)

Proceedings of the Fourth International Conference on Document Analysis and Recognition

Proceedings of 3rd International Conference on Document Analysis and Recognition

Proceedings of 2nd International Conference on Document Analysis and Recognition (ICDAR '93)

Skeletonization by Gradient Regularization and Diffusion

Content Provider	IEEE Xplore Digital Library
Author	Le Bourgeois, F. Emptoz, H.
Copyright Year	2007
Abstract	This paper describes a skeletonization process for grayscale or color images based on the diffusion of the color gradient vectors by using a simple iterative regularization scheme. We propose to diffuse the original color gradient vectors to obtain the skeleton of the main contrasted objects. Contrary to a distance transform or thinning based skeleton, the gradient vectors diffusion is a straightforward, simple and efficient approach to compute the skeleton, which does not require the localization of the contours curvatures or a distance map. In comparison to other approaches based on potential field functions, our method does not require the segmentation of the objects or the precise localization of the contours. Our approach is very simple to implement and can be applied to natural noisy color images of old documents.
Starting Page	1118
Ending Page	1122
File Size	807201
Page Count	5
File Format	PDF
ISBN	9780769528229
ISSN	15205363
DOI	10.1109/ICDAR.2007.4377089
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-23
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Skeleton Color Gray-scale Colored noise Ink Computer vision Image segmentation Noise robustness Degradation Morphology
Content Type	Text
Resource Type	Article

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