Searching in metric spaces with user-defined and approximate distances
ACM Transactions on Database Systems (TODS)
A Region-Based Fuzzy Feature Matching Approach to Content-Based Image Retrieval
IEEE Transactions on Pattern Analysis and Machine Intelligence
An XML-Based 3-Dimensional Graphic Database System
Proceedings of the First International Conference on The Human Society and the Internet - Internet Related Socio-Economic Issues
String Matching with Metric Trees Using an Approximate Distance
SPIRE 2002 Proceedings of the 9th International Symposium on String Processing and Information Retrieval
Object-Based Image Retrieval Using Hierarchical Shape Descriptor
CIVR '02 Proceedings of the International Conference on Image and Video Retrieval
Evaluation of MPEG-7 shape descriptors against other shape descriptors
Multimedia Systems
Error-Tolerant Sign Retrieval Using Visual Features and Maximum A Posteriori Estimation
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WARP: Accurate Retrieval of Shapes Using Phase of Fourier Descriptors and Time Warping Distance
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Effective invariant features for shape-based image retrieval: Research Articles
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A Unified Log-Based Relevance Feedback Scheme for Image Retrieval
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ALSBIR: A local-structure-based image retrieval
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A survey of content-based image retrieval with high-level semantics
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Part-Based Object Retrieval in Cluttered Environment
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A probabilistic approach for 3D shape retrieval by characteristic views
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Active video surveillance based on stereo and infrared imaging
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Image retrieval: Ideas, influences, and trends of the new age
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A visual pathway for shape-based invariant classification of gray scale images
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Geometric matching for clip-art drawing retrieval
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A Similarity Calculus for Comparing Qualitative Shape Descriptions
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Journal of the American Society for Information Science and Technology
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International Journal of Computer Vision
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Tracking of moving targets in video sequences
NN'05 Proceedings of the 6th WSEAS international conference on Neural networks
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ACM Computing Surveys (CSUR)
Shape Codification Indexing and Retrieval Using the Quad-Tree Structure
International Journal of Computer Vision and Image Processing
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An important problem in accessing and retrieving visual information is to provide efficient similarity matching in large databases. Though much work is being done on the investigation of suitable perceptual models and the automatic extraction of features, little attention is given to the combination of useful representations and similarity models with efficient index structures. In this paper we propose retrieval by shape similarity using local descriptors and effective indexing. Shapes are partitioned into tokens in correspondence with their protrusions, and each token is modeled according to a set of perceptually salient attributes. Shape indexing is obtained by arranging shape tokens into a suitably modified M-tree index structure. Two distinct distance functions model respectively, token and shape perceptual similarity. Examples from a prototype system and computational experiences are reported for both retrieval accuracy and indexing efficiency. Shape retrieval has been tested under shape scaling, orientation changes, and partial shape occlusions. A comparative analysis of different indexing structures, for shape retrieval is presented