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» Irregular Sampling on Shift Invariant Spaces
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TIT
2002
81views more  TIT 2002»
9 years 3 months ago
On sampling in shift invariant spaces
Abstract-- In this paper, a necessary and sufficient condition for sampling in the general framework of shift invariant spaces is derived. Then this result is applied respectively ...
Wen Chen, S. Itoh, J. Shiki
IEICET
2010
101views more  IEICET 2010»
9 years 2 months ago
Irregular Sampling on Shift Invariant Spaces
Let V (φ) be a shift invariant subspace of L2 (R) generated by a Riesz or frame generator φ(t) in L2 (R). We assume that φ(t) is suitably chosen so that V (φ) becomes a reprod...
Kil Hyun Kwon, Jaekyu Lee
ICIAR
2009
Springer
9 years 10 months ago
Scale Invariant Feature Transform with Irregular Orientation Histogram Binning
The SIFT (Scale Invariant Feature Transform) descriptor is a widely used method for matching image features. However, perfect scale invariance can not be achieved in practice becau...
Yan Cui, Nils Hasler, Thorsten Thormählen, Ha...
JAT
2007
55views more  JAT 2007»
9 years 3 months ago
The Homogeneous Approximation Property for wavelet frames
An irregular wavelet frame has the form W(ψ, Λ) = {a−1/2 ψ(x a − b)}(a,b)∈Λ, where ψ ∈ L2 (R) and Λ is an arbitrary sequence of points in the affine group A = R+ × ...
Christopher Heil, Gitta Kutyniok
APPML
2002
89views more  APPML 2002»
9 years 3 months ago
Average sampling in spline subspaces
Let V () be a shift invariant subspace of L2 (R) generated by a Riesz or frame generator (t) in L2 (R). We assume that (t) is suitably chosen so that the regular sampling expansio...
Wenchang Sun, Xingwei Zhou
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