2 papers
math.NA2019
Stable Backward Diffusion Models that Minimise Convex Energies
Leif Bergerhoff, Marcelo Cárdenas, Joachim Weickert +1
The inverse problem of backward diffusion is known to be ill-posed and highly unstable. Backward diffusion processes appear naturally in image enhancement and deblurring applicatio…
eess.SP2019
Algorithms for Piecewise Constant Signal Approximations
Leif Bergerhoff, Joachim Weickert, Yehuda Dar
We consider the problem of finding optimal piecewise constant approximations of one-dimensional signals. These approximations should consist of a specified number of segments (samp…