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2 November 2011Performance of composite correlation filters for object recognition
Correlation filters have become an important tool for detection, localization, recognition and object tracking in digital
media. This interest in correlation filters has increased thanks to the processing speed advances of the computers that
enable the implementation of digital correlation filters in real-time. This paper compares the performance of three
correlation filters in the activity of object recognition, specifically human faces with variations in facial expression, pose,
rotation, partial occlusion, illumination and additive white Gaussian noise. The analyzed filters are k-law, MACE and
OTSDF. Simulation results show that the k-law nonlinear composite filter has the best performance in terms of accuracy
and false acceptance rate. Finally, we conclude that a preprocessing algorithm improves significantly the performance of
correlation filters for recognizing objects when they have variations in illumination and noise.
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Everardo Santiago-Ramirez, J. A. González-Fraga, J. I. Ascencio-Lopez, Olimpia Buenrostro, "Performance of composite correlation filters for object recognition," Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801174 (2 November 2011); https://doi.org/10.1117/12.902129