In this paper a new edge and motion adaptive normal definition to high
er definition (NDHD) scanning rate conversion algorithm is presented.
The algorithm utilizes both edge and motion information. Edge analysis
is done separately inter- and intrafield, intended for interpolation
in stationary and moving regions, respectively. Motion information is
obtained from a frame difference signal which is expanded horizontally
if horizontal interfield edge is detected. Steerable FIR-filters are
used in the interpolation.