3 papers
cs.CV2000
Differential Invariants under Gamma Correction
Andreas Siebert
This paper presents invariants under gamma correction and similarity transformations. The invariants are local features based on differentials which are implemented using derivativ…
cs.CV1999
A Differential Invariant for Zooming
Andreas Siebert
This paper presents an invariant under scaling and linear brightness change. The invariant is based on differentials and therefore is a local feature. Rotationally invariant 2-d di…
cs.CV1998
A Linear Shift Invariant Multiscale Transform
Andreas Siebert
This paper presents a multiscale decomposition algorithm. Unlike standard wavelet transforms, the proposed operator is both linear and shift invariant. The central idea is to obtai…