Table 1.

Object's translation components a _x and a _y computed from acquired positions A _x′ and A _y′ of the maxima r ₁₂(A _x′) and r ₁₂(A _y′) of normalized cross-correlation function r ₁₂ of intensities I ₁ and I ₂ by means of (4) and (5). Initial parameters of the computer simulation are according to Figure 1: V _x = V _y = 4 mm, V _x′ = V _y′ = 8 mm, m _i = n _i = 400, m = n = 570, L _o = 0.4 m, L _s = 0.2 m, θ _o = 30°, ω _o = 60 μm, and λ = 632.8 nm. Mean speckle size of detected speckle pattern oriented along x′- and y′-axes direction is α _x′ = 264.9 μm and α _y′ = 225.5 μm. For the sake of clarity, the values of object's translation components (columns 1 and 2) and corresponding evaluated values (columns 9 and 10) are highlighted by bold font.

Object's translation		Theoretical speckle displacement		Detected speckle displacement		Maximum of cross-correlation function		Evaluated object's translation
a x  (μm)	a y  (μm)	A x′ theor  (μm)	A y′ theor  (μm)	A x′  (μm)	A y′ (μm)	r 12(A x′)  (%)	r 12(A y′)  (%)	a x  (μm)	a y  (μm)
10	0	31.8	0.0	31.5	0.0	99.9	96.4	9.9	0.0
20	0	63.5	0.0	62.9	0.0	99.9	87.9	19.8	0.0
30	0	95.3	0.0	94.4	0.0	99.9	74.1	29.7	0.0
40	0	127.0	0.0	125.9	10.8	99.7	55.2	39.6	3.6
50	0	158.8	0.0	157.4	14.6	99.6	31.3	49.6	4.9
60	0	190.5	0.0	188.8	12.8	99.4	9.1	59.4	4.3
70	0	222.3	0.0	220.3	436.8	99.2	6.6	69.4	145.6
80	0	254.0	0.0	251.8	451.1	99.0	11.8	80.0	150.4
90	0	285.8	0.0	283.3	473.2	98.7	17.4	90.0	157.7
100	0	317.5	0.0	314.8	497.1	98.4	23.2	100.0	165.7
10	10	31.8	30.0	33.1	31.2	94.8	93.4	10.4	10.4
20	20	63.5	60.0	70.2	62.7	75.1	88.0	22.1	20.9
30	30	95.3	90.0	112.4	94.6	49.6	73.9	35.4	31.5
40	40	127.0	120.0	162.4	126.3	31.4	54.4	51.1	42.1
50	50	158.8	150.0	255.9	156.2	23.4	30.6	80.6	52.1
60	60	190.5	180.0	417.0	176.0	31.2	9.4	131.3	58.7
70	70	222.3	210.0	460.5	112.3	37.4	0.2	145.0	37.4
80	80	254.0	240.0	494.7	112.3	36.0	1.6	155.8	37.4
90	90	285.8	270.0	525.6	561.4	30.7	4.2	165.5	187.1
100	100	317.5	300.0	561.4	561.4	20.3	4.1	176.8	187.1