We consider estimating an unknown function f from indirect white noise obse
rvations with particular emphasis on the problem of nonparametric deconvolu
tion. Nonparametric estimators that can adapt to unknown smoothness of f ar
e developed. The adaptive estimators are specified under two sets of assump
tions on the kernel of the convolution transform. In particular, kernels ha
ving Fourier transform with polynomially and exponentially decaying tails a
re considered. It is shown that the proposed estimates possess, in a sense,
the best possible abilities for pointwise adaptation.