Bibliography
Conference Paper (international conference)
Blur Invariants and Projection Operators
, , ,
: Signal Processing, Pattern Recognition and Applications, p. 305-312 , Eds: Linsen L., Kampel M.
: Signal Processing, Pattern Recognition and Applications (SPPRA 2013), (Insbruck, AT, 12.02.2013-14.02.2013)
: GAP103/11/1552, GA ČR
: image recognition, Fourier transform, projection operators, invariants
(eng): In this paper, we introduce a new theory of blur invariants. Blur invariants are image features which preserve their values if the image is convolved with a point-spread function (PSF) of a certain class. We present the invariants to convolution with an arbitrary N-fold symmetric PSF, defined in Fourier domain by means of projection operators. We introduce a notion of a primordial image as a canonical form of all blur-equivalent images. We illustrate by experiments the invariance and recognition power of the new features. Potential applications of this method are wherever one wants to recognize blurred images.
: JD