Machine vision, principles and examples of application

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    M =

    m11 m12 m13 m14

    m21 m22 m23 m24

    m31 m32 m33 m34

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    Pw Xw, Yw, Zw)

    Pc Xc, Yc, Zc)

    Pw Pc

    Pc = R(Pw T)

    R =

    r11 r12 r13

    r21 r22 r23r31 r32 r33

    T

    1 0 0 Tx

    0 1 0 Ty

    0 0 1 Tz

    0 0 0 1

    Xc

    Yc

    Zc

    =

    r11 r12 r13

    r21 r22 r23

    r31 r32 r33

    Xw Tx

    Yw Ty

    Zw Tz

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    Xc = RT1 (Pw T)

    Yc

    = RT2

    (Pw T)

    Zc = RT3 (Pw T)

    RT1 , RT2 , R

    T3

    x = fXcZc

    y = fYcZc

    x = fRT1 (Pw T)

    RT3 (Pw T)

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    y = fRT2 (Pw T)

    RT3 (Pw T)

    x = (xim ox)sx

    y = (yim oy)sy

    xim = xsx

    + ox yim = ysy

    + oy

    ox oy

    ox =N2 oy =

    M2

    sx sy

    xim

    ym

    1

    =

    xsx

    0 ox

    0 ysy

    oy

    0 0 1

    x

    y

    1

    (xim ox)sx = fRT1(PwT)

    RT3(PwT)

    (yim oy)sy = fRT2(PwT)

    RT3(PwT)

    xim = f sxRT1(PwT)

    RT3(PwT)

    + ox yim = f syRT2(PwT)

    RT3(PwT)

    + oy

    M = Min Mex

    Min =

    xsx

    0 ox

    0 ysy

    oy

    0 0 1

    Mex =

    r11 r12 r13 RT1 T

    r21 r22 r23 RT2 T

    r31 r32 r33 RT3 T

    xh

    yh

    w

    = M

    Xw

    Yw

    Zw

    1

    m11 m12 m13 m14

    m21 m22 m23 m24

    m31 m32 m33 m34

    Xw

    Yw

    Zw

    1

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    xim =xhw

    = m11Xw+m12Yw+m13Zw+m14m31Xw+m32Yw+m33Zw+m34

    yim =yhw

    = m21Xw+m22Yw+m23Zw+m24m31Xw+m32Yw+m33Zw+m34

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