A retrieval technique for similar shapes
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
Digital halftoning with space filling curves
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Computable elastic distances between shapes
SIAM Journal on Applied Mathematics
Further five-point fit ellipse fitting
Graphical Models and Image Processing
Gray-level reduction using local spatial features
Computer Vision and Image Understanding
IEEE Transactions on Pattern Analysis and Machine Intelligence
Modal Matching for Correspondence and Recognition
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
Using moment invariants and HMM in facial expression recognition
Pattern Recognition Letters
Using Hilbert curve in image storing and retrieving
Information Systems
A Gray Image Compression Using a Hilbert Scan
ICPR '96 Proceedings of the International Conference on Pattern Recognition (ICPR '96) Volume III-Volume 7276 - Volume 7276
Efficient contour-based shape representation and matching
MIR '03 Proceedings of the 5th ACM SIGMM international workshop on Multimedia information retrieval
Using the Inner-Distance for Classification of Articulated Shapes
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Alternative Algorithm for Hilbert's Space-Filling Curve
IEEE Transactions on Computers
Shape retrieval based on dynamic programming
IEEE Transactions on Image Processing
An image compression method for spatial search
IEEE Transactions on Image Processing
A multiscale representation method for nonrigid shapes with a single closed contour
IEEE Transactions on Circuits and Systems for Video Technology
A Rotation-Invariant Approach to 2D Shape Representation Using the Hilbert Curve
ICIAR '09 Proceedings of the 6th International Conference on Image Analysis and Recognition
Deformable 2D Shape Matching Based on Shape Contexts and Dynamic Programming
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
Scale invariant and deformation tolerant partial shape matching
Image and Vision Computing
Shape matching and classification using height functions
Pattern Recognition Letters
Significantly improving scan-based shape representations using rotational key feature points
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part I
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In this paper, a novel linear-time approach to shape representation and description is presented. The object shape is captured by scanning the object image using a space-filling curve (SFC). The resulting vector is smoothed, using wavelet approximation, and sampled. In addition, the concept of key feature points (KFPs) is introduced to utilize a priori information about the classification of the images in the database in optimizing the representation of the objects within each class. The proposed technique achieves a recognition rate of 88.3% on the MPEG-7 core experiment part B. On the Kimia-99 and Kimia-216 datasets, a precision average of 95.6% is attained. Retrieval rates of 94.2% and 95.6% are achieved on the gray-scale and binary versions of the ETH-80 dataset, respectively.