An Algorithm for Fast Computation of 3D Zernike Moments for Volumetric Images

Table 3

Elapsed CPU times and the reduction percentage for selected moment orders (first numerical experiment).

Moment order	Conventional method [21]	Proposed method	Reduction percentage
1	0.629653	0.057412	90.8820%
3	6.742940	0.078032	98.8428%
5	32.336633	0.095085	99.7060%
10	212.330483	0.174056	99.9180%
12	386.394043	0.182601	99.9527%
15	847.327152	0.276992	99.9673%