Detection of Intensity Changes with Subpixel Accuracy Using Laplacian-Gaussian Masks
IEEE Transactions on Pattern Analysis and Machine Intelligence
A computational approach to edge detection
Readings in computer vision: issues, problems, principles, and paradigms
The fast Fourier transform and its applications
The fast Fourier transform and its applications
Fundamentals of digital image processing
Fundamentals of digital image processing
Texture Features for Browsing and Retrieval of Image Data
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
An efficient shape-based approach to image retrieval
Pattern Recognition Letters
Shape Analysis and Classification: Theory and Practice
Shape Analysis and Classification: Theory and Practice
Morphometrical data analysis using wavelets
Real-Time Imaging - Special issue on imaging in bioinformatics: Part III
Efficient Wavelet-Based Image Retrieval Using Coarse Segmentation and Fine Region Feature Extraction
IEICE - Transactions on Information and Systems
A New Image Segmentation Method for Removing Background of Object Movies by Learning Shape Priors
ICPR '06 Proceedings of the 18th International Conference on Pattern Recognition - Volume 01
Neural Networks: A Comprehensive Foundation (3rd Edition)
Neural Networks: A Comprehensive Foundation (3rd Edition)
Morse operators for digital planar surfaces and their application to image segmentation
IEEE Transactions on Image Processing
Training feedforward networks with the Marquardt algorithm
IEEE Transactions on Neural Networks
A complex network-based approach for boundary shape analysis
Pattern Recognition
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Successful classification, information retrieval and image analysis tools are intimately related with the quality of the features employed in the process. Pixel intensities, color, texture and shape are, generally, the basis from which most of the features are computed and used in such fields. This papers presents a novel shape-based feature extraction approach where an image is decomposed into multiple contours, and further characterized by Fourier descriptors. Unlike traditional approaches we make use of topological knowledge to generate well-defined closed contours, which are efficient signatures for image retrieval. The method has been evaluated in the CBIR context and image analysis. The results have shown that the multi-contour decomposition, as opposed to a single shape information, introduced a significant improvement in the discrimination power.