Moya A, Mendlovic D, García J, Ferreira C
Appl Opt. 1996 Jul 10;35(20):3862-7. doi: 10.1364/AO.35.003862.
A phase-only filter based on logarithmic harmonics for projection-invariant pattern recognition is presented. This logarithmic-harmonic-derived filter is directly calculated in the Fourier plane. With respect to normal logarithmic-harmonic filters it provides a smaller variation of the correlation intensity with the projection factor of the target. Computer and optical experiments are presented.
提出了一种基于对数谐波的纯相位滤波器用于投影不变模式识别。这种由对数谐波导出的滤波器直接在傅里叶平面中计算。与普通对数谐波滤波器相比，它在相关强度随目标投影因子的变化方面更小。文中给出了计算机和光学实验结果。
