Part of a two-volume set, this book constitutes the refereed proceedings of the Third Iberian Conference on Pattern Recognition and Image Analysis, IbPRIA 2007, held in Girona, Spain in June 2007.

Known Unknowns: Novelty Detection in Condition Monitoring.- Seeing the Invisible and Predicting the Unexpected.- Vision-Based SLAM in Real-Time.- Handwritten Symbol Recognition by a Boosted Blurred Shape Model with Error Correction.- Bayesian Hyperspectral Image Segmentation with Discriminative Class Learning.- Comparison of Unsupervised Band Selection Methods for Hyperspectral Imaging.- Learning Mixture Models for Gender Classification Based on Facial Surface Normals.- Feature Selection Based on a New Formulation of the Minimal-Redundancy-Maximal-Relevance Criterion.- Topological Histogram Reduction Towards Colour Segmentation.- Dealing with Non-linearity in Shape Modelling of Articulated Objects.- Human Motion Characterization Using Spatio-temporal Features.- Fast Stochastic Context-Free Parsing: A Stochastic Version of the Valiant Algorithm.- Supervised Segmentation Based on Texture Signatures Extracted in the Frequency Domain.- Analysis of Relevant Maxima in Distance Transform. An Application to Fast Coarse Image Segmentation.- Performance Analysis of Classifier Ensembles: Neural Networks Versus Nearest Neighbor Rule.- Robust Multiple-People Tracking Using Colour-Based Particle Filters.- Structure Restriction for Tracking Through Multiple Views and Occlusions.- On the Detection of Regions-of-Interest in Dynamic Contrast-Enhanced MRI.- Dealing with the Perspective Distortion to Detect Overtaking Cars for Driving Assistance.- 3D Reconstruction on MRI to Analyse Marbling and Fat Level in Iberian Loin.- Epiflow Based Stereo Fusion.- Automatic Segmentation of the Liver in CT Using Level Sets Without Edges.- Spectral Modes of Facial Needle-Maps.- Classifiers for Vegetation and Forest Mapping with Low Resolution Multiespectral Imagery.- A Robust Audio Fingerprint's BasedIdentification Method.- Development of a Methodology for Automated Crater Detection on Planetary Images.- Rao-Blackwellized Particle Filter for Human Appearance and Position Tracking.- Parameter System for Human Physiological Data Representation and Analysis.- Face Recognition in Color Using Complex and Hypercomplex Representations.- A Semi-automatic Approach to Photo Identification of Wild Elephants.- Language Identification Based on Phone Decoding for Basque and Spanish.- Computer Assisted Transcription of Speech.- Word Segments in Category-Based Language Models for Automatic Speech Recognition.- Part-of-Speech Tagging Based on Machine Translation Techniques.- Bilingual Text Classification.- Robust Lane Lines Detection and Quantitative Assessment.- Matrics, a Car License Plate Recognition System.- Automatic Labeling of Colonoscopy Video for Cancer Detection.- Functional Pattern Recognition of 3D Laser Scanned Images of Wood-Pulp Chips.- Hardware Implementation of Moment Functions in a CMOS Retina: Application to Pattern Recognition.- Decimation Estimation and Linear Model-Based Super-Resolution Using Zoomed Observations.- Line Extraction from Mechanically Scanned Imaging Sonar.- Road Signs Recognition by the Scale-Space Template Matching in the Log-Polar Domain.- The Condition of Kernelizing an Algorithm and an Equivalence Between Kernel Methods.- A Probabilistic Observation Model for Stereo Vision Systems: Application to Particle Filter-Based Mapping and Localization.- New Neighborhood Based Classification Rules for Metric Spaces and Their Use in Ensemble Classification.- Classification of Voltage Sags Based on MPCA Models.- On-Line Handwriting Recognition System for Tamil Handwritten Characters.- A New Type of Feature - Loose N-Gram Feature in TextCategorization.- Variational Deconvolution of Multi-channel Images with Inequality Constraints.- HMM-Based Action Recognition Using Contour Histograms.- Locating and Segmenting 3D Deformable Objects by Using Clusters of Contour Fragments.- Development of a Cascade Processing Method for Microarray Spot Segmentation.- Haar Wavelets and Edge Orientation Histograms for On-Board Pedestrian Detection.- Face Recognition Using Principal Geodesic Analysis and Manifold Learning.- Optimized Associative Memories for Feature Selection.- Automatic Construction of Fuzzy Rules for Modelling and Prediction of the Central Nervous System.- A Clustering Technique for Video Copy Detection.- Invariant Multi-scale Object Categorisation and Recognition.- Combination of N-Grams and Stochastic Context-Free Grammars in an Offline Handwritten Recognition System.- Phrase-Based Statistical Machine Translation Using Approximate Matching.- Motion Segmentation from Feature Trajectories with Missing Data.- Segmentation of Rigid Motion from Non-rigid 2D Trajectories.- Hierarchical Eyelid and Face Tracking.- Automatic Learning of Conceptual Knowledge in Image Sequences for Human Behavior Interpretation.- A Comparative Study of Local Descriptors for Object Category Recognition: SIFT vs HMAX.- Moment-Based Pattern Representation Using Shape and Grayscale Features.- Parsimonious Kernel Fisher Discrimination.- Explicit Modelling of Invariances in Bernoulli Mixtures for Binary Images.- Computer Vision Approaches to Pedestrian Detection: Visible Spectrum Survey.- A Decision-Tree-Based Online Speaker Clustering.- Classification of Continuous Heart Sound Signals Using the Ergodic Hidden Markov Model.- A Protocol to Cipher Digital Images Based on Cat Maps and Cellular Automata.- Perceptually-Based Functions forCoarseness Textural Feature Representation.- Vehicle Trajectory Estimation Based on Monocular Vision.- A Neural Network Model for Image Change Detection Based on Fuzzy Cognitive Maps.- Semiring Lattice Parsing Applied to CYK.- Constrained Monocular Obstacle Perception with Just One Frame.