Invariance and image processing

Henri H. Arsenault; Pascuala Garcia-Martinez

doi:10.1117/12.667702

20 January 2006 Invariance and image processing

Henri H. Arsenault, Pascuala Garcia-Martinez

Proceedings Volume 6027, ICO20: Optical Information Processing; 602706 (2006) https://doi.org/10.1117/12.667702
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Pattern recognition methods should be robust against small changes, yet be insensitive to certain modifications such as changes of position, intensity, orientation, scale and color. Those two requirements are somewhat contradictory. For example, linear filtering methods are invariant to changes in position, but by definition changes in the outputs are proportional to changes of intensity of the objects. We shall discuss recent advances in invariant pattern recognition, including nonlinear methods that allow maintaining the shift invariance of linear filtering while being insensitive to changes of intensity of objects of interest. Detection of targets in camouflage and multiobject recognition will also be discussed.

Citation Download Citation

Henri H. Arsenault and Pascuala Garcia-Martinez "Invariance and image processing", Proc. SPIE 6027, ICO20: Optical Information Processing, 602706 (20 January 2006); https://doi.org/10.1117/12.667702

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