The Journal of Pattern Recognition Research (JPRR) provides an international forum for the electronic publication of high-quality research and industrial experience articles in all areas of pattern recognition, machine learning and artificial intelligence. JPRR is committed to rigorous yet rapid reviewing. Final versions are published electronically
(ISSN 1558-884X) immediately upon acceptance.
News
 
Invitation: Associate/Prospective JPRR Editors in Bioinformatics: 2013

JPRR maintains its annual editor enrollment tradition. In the term of 2013, the call for the enrollment is focused on the Bioinformatics Section. JPRR welcomes motivated talents, scholars, as well as individual contributors to voluntarily invest their expertise, wit, and passion into the Pattern Recognition community by assisting in conducting manuscript reviews, identifying trustworthy reviewers, and by learning from the JPRR magnificent Editorial constellation. New editorial candidates are welcome to provide their CVs to confirm their expertise in Bioinformatics and Pattern Recognition domains.

In order to apply, please send your cover letter and CV to apply@jprr.org.

Professor Raymond DeCarlo has accepted the title of JPRR Distinguished Editor
Raymond A. Decarlo

Dr. DeCarlo is a world-renowned authority in Control Theory. The topics of his interest are hybrid optimal control, hybrid electric vehicle modeling and control, Lyapunov stability, decentralized control, analog fault analysis and diagnosis of circuits. His practical academic work has been crystallized in a number of monographs and co-authored formidable volumes.

Vol 7, No 1 (2012)
Pattern Recognition Theory
Distance Between Distributions With Special Topologies of Cost Matrices 1-25
Comparing two distributions plays important role in many problems. The traditional minimum cost flow problem has been utilized as a distance measure between two distributions (transportation problem) such as the earth mover’ distance (EMD).
Design of a Decision Tree Classify Similar Looking Characters Using Subimages 42-55
Kannada script has large number of vowels, consonants, conjuncts and combination of these in inflectional and agglutinative manner.
Biometric Authentication and Identification Using Keystroke Dynamics: A Survey 116-139
Dependence on computers to store and process sensitive information has made it necessary to secure them from intruders. A behavioral biometric such as keystroke dynamics which makes use of the typing cadence of an individual can be used to strengthen existing security techniques effectively and cheaply.
Integrating Stereo Disparity and Optical Flow by Closely-Coupled Method 175-187
As a convergence method for stereo matching and motion estimation, this paper presents an equation, called Disparity-Optical flow Equation, that relates disparity with optical flow in rectified images.
Applications
Recognizing Thai Broken Characters Based on Set-Partitions and N-Grams Graphs 26-41
Automatic recognition of broken Thai characters represents one of the biggest challenges in some applications such as computerized restoration of Thai text documents.
Legend Extraction From E-Learning Video Streams 56-71
Teachers usually illustrate major pedagogical concepts with graphics and/or images and/or tables and, in doing so, take a considerable amount of time in explanation.
Investigation of Shoeprints Using Radon Transform With Reduced Computational Complexity 80-89
Biometric traits along with various evidences left by the offender at the place of crime found useful in crime investigation.
Image Registration Using Log Polar Transform and Phase Correlation to Recover Higher Scale 90-105
Image registration is an important and fundamental task in image processing used to match two different images. Given two or more different images to be registered, image registration estimates the parameters of the geometrical transformation model that maps the sensed images back to its reference image.
Clustering Financial Time Series via Information-Theory Analysis and Rank Statistics 106-115
A method of clustering of a time series set is described. Each cluster includes time series containing the same amounts of information about other time series.
Robust Facial Feature Extraction and Matching 140-154
Automated feature extraction and correspondence determination is an extremely important problem in the face recognition community as it often forms the foundation of the normalisation and database construction phases of many recognition and verification systems.
Pattern Recognition in Bioinformatics
Facial Feature Points Tracking Based on AAM With Optical Flow Constrained Initialization 72-79
A facial feature points tracking method is proposed by adding Lucas-Kanade optical flow constraint on the face alignment algorithm, Active Appearance Model (AAM).
Guest Papers
A Multi-Level Model for Fingerprint Image Enhancement 155-174
Fingerprint has remained a very vital index for human recognition. In the field of security, series of Automatic Fingerprint Identification System (AFIS) have been developed.
Vol 6, No 2 (2011)
Pattern Recognition Theory
Interactive Fuzzy Model Based Recognition of Handwritten Numerals 154-165
In this fuzzy model based character recognition, the features extracted from a character are used to form the fuzzy sets. Assuming these fuzzy sets have the overlapping/interactive information, this paper develops an Interactive Fuzzy Model by devising new fuzzy rules for linking them.
Perceptual Color Representation of the Face: Extracting the Color of Skin, Hair and Eyes 166-174
A color representation of the face is presented to detect the color of the skin, eyes and hair in high resolution color images.
Bandwidth Selection for Mean-Shift Based Unsupervised Learning Techniques: A Unified Approach via Self-Coverage 175-192
The mean shift is a simple but powerful tool emerging from the computer science literature which shifts a point to the local center of mass around this point.
Online Adaptive Hierarchical Clustering in a Decision Tree Framework 201-229
We present an online adaptive hierarchical clustering algorithm in a decision tree framework. Our model consists of an online adaptive binary tree and a code formation layer.
A Comperative Approach to Cluster Validation 230-243
The estimation of the appropriate number of clusters is a known problem in cluster analysis, that affects the clusters stability.
Multistage Handwritten Marathi Compound Character Recognition Using Neural Networks 253-268
Compound character is a special feature of Marathi script, derived from Devanagari. It joins two or more characters in various ways forming a new character.
Evaluation of Different Feature Extractors and Classifiers for Offline Handwritten Devnagari Character Recognition 269-277
Research on Optical Character Recognition (OCR) of Devnagari script is very challenging due to the complex structural properties of the script that are not observed in most other scripts.
Approximate LDA Technique for Dimensionality Reduction in the Small Sample Size Case 298-306
 The regularized linear discriminant analysis (LDA) technique overcomes the small sample size (SSS) problem by adding a regularization parameter to the eigenvalues of within-class scatter matrix.
Learning Factor Patterns in Exploratory Factor Analysis Using the Genetic Algorithm and Information Complexity as the Fitness Function 307-325
This paper presents a new, and novel data-adaptive expert approach to determining the best factor pattern structure in exploratory factor analysis (EFA) models using a clever genetic algorithm (GA) hybridized with information theoretic complexity (ICOMP) criterion as the fitness function.
Applications
Feature Dimensionality Reduction for Example-Based Image Super-Resolution 130-139
Support vector regression has been proposed in a number of image processing tasks including blind image deconvolution, image denoising and single frame super-resolution.
A Novel Region Based Multimodality Image Fusion Method 140-153
In recent years the region based image fusion algorithms has drawn the attention of researches because it is more meaningful to combine regions rather than pixels.
Multiphase Segmentation of 3D Flash Lidar Images 193-200
Three-dimensional Flash Lidar camera is a new technology which allows a single camera to take multiple images in a fast succession.
Assessment in Subsets of MNIST Handwritten Digits and Their Effect in the Recognition Rate 244-252
This paper reports the performance of a character recognition test using MNIST handwritten-digit database. The presented assessment is twofold, first it shows the performance of a recognition test based on a very simple feature extraction method, secondly it shows a disparity within the database that may be important when recognition algorithms are compared.
Error Level Fusion of Multimodal Biometrics 278-297
This paper presents a multimodal biometric system based on error level fusion. Two error level fusion strategies, one involving the Choquet integral and another involving the t-norms are proposed.
Thresholding Based on Fisher Linear Discriminant 326-334
Classic statistical thresholding methods based on maximizing between-class variance and minimizing class variance fail to achieve satisfactory results when segmenting small objects.