Combinatorial optimization: algorithms and complexity
Combinatorial optimization: algorithms and complexity
Principal Warps: Thin-Plate Splines and the Decomposition of Deformations
IEEE Transactions on Pattern Analysis and Machine Intelligence
On a cyclic string-to-string correction problem
Information Processing Letters
Shape Matching and Object Recognition Using Shape Contexts
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Content-Based Image Retrieval Using Fourier Descriptors on a Logo Database
ICPR '02 Proceedings of the 16 th International Conference on Pattern Recognition (ICPR'02) Volume 3 - Volume 3
WARP: Accurate Retrieval of Shapes Using Phase of Fourier Descriptors and Time Warping Distance
IEEE Transactions on Pattern Analysis and Machine Intelligence
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
Distance sets for shape filters and shape recognition
IEEE Transactions on Image Processing
The MPEG-7 visual standard for content description-an overview
IEEE Transactions on Circuits and Systems for Video Technology
MPEG-7 visual shape descriptors
IEEE Transactions on Circuits and Systems for Video Technology
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Belongie et al. used sets of shape contexts for contours at certain landmarks and showed that they offer good results in shape matching. We propose a better selection of landmark points based on a low-pass filtering of the shape contour and consider that shape context at landmarks along the contour form a cyclic sequence. These cyclic sequences can be properly compared by means of Cyclic Dynamic Time Warping, as shown in the paper. Experiments on the MPEG7 CE-Shape-1 and the SQUID Demo databases show that our proposal outperforms the WARP system and Belongie’s approach for shape retrieval.