Till Halbach and Tor A. Ramstad.
Multidimensional Adaptive Non-Linear Filters for Concealment
of Interlaced Video.
In Proceedings Norwegian Signal Processing Symposium
(NORSIG),
Bergen (Norway),
October 2003
Abstract
The application of multidimensional adaptive non-linear filters
for interpolation of interlaced imagery is
investigated.
Moreover, a new scheme for combination of several data estimates by weighting
based on one-sample correlation is proposed.
This technique achieves superior performance when combining vertical and
temporal signals at a moderate complexity
increase.
In the spatial domain, one-dimensional non-adaptive Lagrange interpolators
are found to provide sufficient objective and subjective
image quality as compared to two-dimensional linear and non-linear filters, and
median-type filters.
Keywords
Non-linear multi-dimensional adaptive filter, error concealment, median filtering, video,
still image.
Till Halbach
Last modified: October 06, 2003
