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Steerable Filtering Using Novel Circular Harmonic Functions with Application to Edge Detection
Found in: Pattern Recognition, International Conference on
By Giuseppe Papari, Patrizio Campisi, Nicolai Petkov
Issue Date:August 2010
pp. 3947-3950
In this paper, we perform approximate steering of the elongated 2D Hermite-Gauss functions with respect to rotations and provide a compact analytical expressions for the related basis functions. A special notation introduced here considerably simplifies th...
 
Robustness of Shape Descriptors to Incomplete Contour Representations
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Anarta Ghosh, Nicolai Petkov
Issue Date:November 2005
pp. 1793-1804
With inspiration from psychophysical researches of the human visual system, we propose a novel aspect and a method for performance evaluation of contour-based shape recognition algorithms regarding their robustness to incompleteness of contours. We use com...
 
GAP Test: A Cognitive Evaluation Procedure for Shape Descriptors
Found in: Hybrid Intelligent Systems, International Conference on
By Anarta Ghosh, Nicolai Petkov
Issue Date:December 2004
pp. 334-339
With inspiration from psychophysical researches of the human visual system we propose a novel method for performance evaluation of contour based shape recognition algorithms. We use complete contour representations of objects as a training set. Incomplete ...
 
Assessing schizophrenia with an interoperable architecture
Found in: Proceedings of the first international workshop on Managing interoperability and complexity in health systems (MIXHS '11)
By Ando Emerencia, Lian van der Krieke, Marco Aiello, Nicolai Petkov
Issue Date:October 2011
pp. 79-82
With the introduction of electronic personal health records and e-health applications spreading, interoperability concerns are of increasing importance to hospitals and care facilities. Interoperability between distributed and complex systems requires, amo...
     
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