Feng Lin and Robert D. Brandt,
Towards absolute invariants of images under translation,
rotation and dilation,
Pattern Recognition Letters,
14, pp. 369-379, May 1993.
Feng Lin and Robert D. Brandt,
Towards absolute invariants of images under translation,
rotation and dilation,
Pattern Recognition Letters,
14, pp. 369-379, May 1993.We propose several types of phase invariants for images. The phase Taylor invariant and the phase Hessian invariant are invariant under translation. The phase Mellin invariant is invariant under rotation and dilation. We also derive invariants under translation and rotation. All the invariants obtained are absolute in the sense that they preserve all information except that of position, orientation or scale.