Scale-Based Description and Recognition of Planar Curves and Two-Dimensional Shapes
IEEE Transactions on Pattern Analysis and Machine Intelligence
On Image Analysis by the Methods of Moments
IEEE Transactions on Pattern Analysis and Machine Intelligence
Invariant Image Recognition by Zernike Moments
IEEE Transactions on Pattern Analysis and Machine Intelligence
Artificial intelligence (3rd ed.)
Artificial intelligence (3rd ed.)
A Theory of Multiscale, Curvature-Based Shape Representation for Planar Curves
IEEE Transactions on Pattern Analysis and Machine Intelligence
Fast Chain Coding of Region Boundaries
IEEE Transactions on Pattern Analysis and Machine Intelligence
Content-Based Image Retrieval at the End of the Early Years
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Multiscale Method for the Reassembly of Two-Dimensional Fragmented Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
Matching and Retrieval of Distorted and Occluded Shapes Using Dynamic Programming
IEEE Transactions on Pattern Analysis and Machine Intelligence
Indentation and Protrusion Detection and Its Applications
Scale-Space '01 Proceedings of the Third International Conference on Scale-Space and Morphology in Computer Vision
Sketch-Based Images Database Retrieval
MIS '98 Proceedings of the 4th International Workshop on Advances in Multimedia Information Systems
Size Functions for Image Retrieval: A Demonstrator on Randomly Generated Curves
CIVR '02 Proceedings of the International Conference on Image and Video Retrieval
An abstract representation of geometric knowledge for object classification
Pattern Recognition Letters
Journal of VLSI Signal Processing Systems
Statistical Shape Analysis: Clustering, Learning, and Testing
IEEE Transactions on Pattern Analysis and Machine Intelligence
Multiscale Fourier descriptors for defect image retrieval
Pattern Recognition Letters
Sketch creation utilizing shape matching techniques
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Distributed recursive learning for shape recognition through multiscale trees
Image and Vision Computing
Seat detection in a car for a smart airbag application
Pattern Recognition Letters
Shape representation by a network of V4-like cells
Neural Networks
Identifying elephant photos by multi-curve matching
Pattern Recognition
Image retrieval: Ideas, influences, and trends of the new age
ACM Computing Surveys (CSUR)
Contour simplification using a multi-scale local phase analysis
Image and Vision Computing
Curvature Feature Based Shape Analysis
ICIC '08 Proceedings of the 4th international conference on Intelligent Computing: Advanced Intelligent Computing Theories and Applications - with Aspects of Theoretical and Methodological Issues
Towards semantic maps for mobile robots
Robotics and Autonomous Systems
Component based shape retrieval using differential profiles
MIR '08 Proceedings of the 1st ACM international conference on Multimedia information retrieval
A New Algorithm for Dominant Point Detection by Quasi-collinear Break Points Supression
ACIVS '08 Proceedings of the 10th International Conference on Advanced Concepts for Intelligent Vision Systems
Vision-Based Detection of Mobile Smart Objects
EuroSSC '08 Proceedings of the 3rd European Conference on Smart Sensing and Context
Shape retrieval with eigen-CSS search
Image and Vision Computing
Polygonal approximation of digital planar curves through break point suppression
Pattern Recognition
Journal of Visual Communication and Image Representation
Comparison of detailed descriptors for noisy silhouettes
Machine Graphics & Vision International Journal
Dominant point detection: A new proposal
Image and Vision Computing
Perceptually relevant and piecewise linear matching of silhouettes
Pattern Recognition
LWDOS: language for writing descriptors of outline shapes
SCIA'03 Proceedings of the 13th Scandinavian conference on Image analysis
3D object recognition by eigen-scale-space of contours
SSVM'07 Proceedings of the 1st international conference on Scale space and variational methods in computer vision
Shape matching using coarse descriptors
International Journal of Computational Vision and Robotics
Vision and image processing algorithms
Algorithms and theory of computation handbook
Artistic line-drawings retrieval based on the pictorial content
Journal on Computing and Cultural Heritage (JOCCH)
Dynamic time warping of cyclic strings for shape matching
ICAPR'05 Proceedings of the Third international conference on Pattern Recognition and Image Analysis - Volume Part II
Chi-square goodness-of-fit test of 3d point correspondence for model similarity measure and analysis
CIVR'05 Proceedings of the 4th international conference on Image and Video Retrieval
Discrimination of natural contours by means of time-scale-frequency decompositions
ISVC'05 Proceedings of the First international conference on Advances in Visual Computing
Envelope detection of multi-object shapes
ICIAR'05 Proceedings of the Second international conference on Image Analysis and Recognition
Matching noisy outline contours using a descriptor reduction approach
ICISP'12 Proceedings of the 5th international conference on Image and Signal Processing
Pictorial analysis of line-drawings
Computational Aesthetics'08 Proceedings of the Fourth Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
Shape Codification Indexing and Retrieval Using the Quad-Tree Structure
International Journal of Computer Vision and Image Processing
Shape similarity by homotopic deformation
The Visual Computer: International Journal of Computer Graphics
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A complete, fast and practical isolated object recognition system has been developed which is very robust with respect to scale, position and orientation changes of the objects as well as noise and local deformations of shape (due to perspective projection, segmentation errors and non-rigid material used in some objects). The system has been tested on a wide variety of three-dimensional objects with different shapes and material and surface properties. A light-box setup is used to obtain silhouette images which are segmented to obtain the physical boundaries of the objects which are classified as either convex or concave. Convex curves are recognized using their four high-scale curvature extrema points. Curvature Scale Space (CSS) Representations are computed for concave curves. The CSS representation is a multi-scale organization of the natural, invariant features of a curve (curvature zero-crossings or extrema) and useful for very reliable recognition of the correct model since it places no constraints on the shape of objects. A three-stage, coarse-to-fine matching algorithm prunes the search space in stage one by applying the CSS aspect ratio test. The maxima of contours in CSS representations of the surviving models are used for fast CSS matching in stage two. Finally, stage three verifies the best match and resolves any ambiguities by determining the distance between the image and model curves. Transformation parameter optimization is then used to find the best fit of the input object to the correct model.