TY - JOUR
T1 - Composite harmonic filters for scale-, projection-, and shift-invariant pattern recognition
AU - Mendlovic, David
AU - Zalevsky, Zeev
AU - Kiryuschev, Irena
AU - Lebreton, Guy
PY - 1995/1/10
Y1 - 1995/1/10
N2 - The Mellin radial harmonic filter and the logarithmic harmonic filter are useful for performing optical scale- and projection-invariant pattern recognition, respectively. To our knowledge, on the basis of the harmonic-function method, no one has been able to obtain more than one invariant property (in addition to the shift invariance) when using the matched-filter approach. A new method of combining the scale-, the projection-, and the shift-invariance properties is proposed, based on two decomposition stages of the input pattern. Computer simulations are presented as well as preliminary experimental results.
AB - The Mellin radial harmonic filter and the logarithmic harmonic filter are useful for performing optical scale- and projection-invariant pattern recognition, respectively. To our knowledge, on the basis of the harmonic-function method, no one has been able to obtain more than one invariant property (in addition to the shift invariance) when using the matched-filter approach. A new method of combining the scale-, the projection-, and the shift-invariance properties is proposed, based on two decomposition stages of the input pattern. Computer simulations are presented as well as preliminary experimental results.
UR - http://www.scopus.com/inward/record.url?scp=0029219705&partnerID=8YFLogxK
U2 - 10.1364/ao.34.000310
DO - 10.1364/ao.34.000310
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C2 - 20963118
AN - SCOPUS:0029219705
SN - 1559-128X
VL - 34
SP - 310
EP - 316
JO - Applied Optics
JF - Applied Optics
IS - 2
ER -