Example #1
0
def test_align():
    orig_points = np.array([
        [3.36748406,  1.61036404,  3.55147255],
        [3.58702265,  0.06676394,  3.64695356],
        [0.28452026, -0.11188296,  3.78947735],
        [0.25482713,  1.57828256,  3.6900808],

        [3.54938525,  1.74057692,  5.13329681],
        [3.6855626 ,  0.10335229,  5.26344841],
        [0.25025385, -0.06146044,  5.57085135],
        [0.20742481,  1.71073272,  5.41823085],
        ]).T

    ft2inch = 12.0
    inch2cm = 2.54
    cm2m = 0.01
    ft2m = ft2inch * inch2cm * cm2m

    x1,y1,z1=0,0,0
    x2,y2,z2=np.array([10,5,5])*ft2m

    new_points = np.array([
        [x2, y2, z2],
        [x2, y1, z2],
        [x1, y1, z2],
        [x1, y2, z2],

        [x2, y2, z1],
        [x2, y1, z1],
        [x1, y1, z1],
        [x1, y2, z1],
        ]).T

    print(orig_points.T)
    print(new_points.T)

    s,R,t = estsimt(orig_points,new_points)
    print('s=%s'%repr(s))
    print('R=%s'%repr(R.tolist()))
    print('t=%s'%repr(t.tolist()))
    Xnew = align_points( s,R,t, orig_points )

    # measure distance between elements
    mean_absdiff = np.mean( abs(Xnew[:3]-new_points).flatten() )
    assert mean_absdiff < 0.05

    M_orig = np.array([[1,2,3,4],
                       [5,6,7,8],
                       [9,10,11,12]],dtype=np.float)
    print('Xnew.T')
    print(Xnew.T)

    M_new = align_M( s,R,t, M_orig )
    print('M_new')
    print(M_new)
Example #2
0
def test_align():
    orig_points = np.array([
        [3.36748406, 1.61036404, 3.55147255],
        [3.58702265, 0.06676394, 3.64695356],
        [0.28452026, -0.11188296, 3.78947735],
        [0.25482713, 1.57828256, 3.6900808],
        [3.54938525, 1.74057692, 5.13329681],
        [3.6855626, 0.10335229, 5.26344841],
        [0.25025385, -0.06146044, 5.57085135],
        [0.20742481, 1.71073272, 5.41823085],
    ]).T

    ft2inch = 12.0
    inch2cm = 2.54
    cm2m = 0.01
    ft2m = ft2inch * inch2cm * cm2m

    x1, y1, z1 = 0, 0, 0
    x2, y2, z2 = np.array([10, 5, 5]) * ft2m

    new_points = np.array([
        [x2, y2, z2],
        [x2, y1, z2],
        [x1, y1, z2],
        [x1, y2, z2],
        [x2, y2, z1],
        [x2, y1, z1],
        [x1, y1, z1],
        [x1, y2, z1],
    ]).T

    print(orig_points.T)
    print(new_points.T)

    s, R, t = estsimt(orig_points, new_points)
    print('s=%s' % repr(s))
    print('R=%s' % repr(R.tolist()))
    print('t=%s' % repr(t.tolist()))
    Xnew = align_points(s, R, t, orig_points)

    # measure distance between elements
    mean_absdiff = np.mean(abs(Xnew[:3] - new_points).flatten())
    assert mean_absdiff < 0.05

    M_orig = np.array([[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]],
                      dtype=np.float)
    print('Xnew.T')
    print(Xnew.T)

    M_new = align_M(s, R, t, M_orig)
    print('M_new')
    print(M_new)
Example #3
0
def check_align(cam_opts):

    cam_orig = _build_test_camera(**cam_opts)
    M_orig = cam_orig.M
    cam_orig = CameraModel.load_camera_from_M( M_orig )
    R1 = np.eye(3)
    R2 = np.zeros((3,3))
    R2[0,1] = 1
    R2[1,0] = 1
    R2[2,2] = -1
    t1 = np.array( (0.0, 0.0, 0.0) )
    t2 = np.array( (0.0, 0.0, 0.1) )
    t3 = np.array( (0.1, 0.0, 0.0) )
    for s in [1.0, 2.0]:
        for R in [R1, R2]:
            for t in [t1, t2, t3]:
                cam_actual = cam_orig.get_aligned_camera( s, R, t )
                M_expected = mcsc_align.align_M( s,R,t, M_orig )
                cam_expected = CameraModel.load_camera_from_M( M_expected )
                assert cam_actual==cam_expected