Title :
Edge and motion controlled spatial upconversion
Author_Institution :
NOKIA Res. Center, Tampere, Finland
fDate :
8/1/1994 12:00:00 AM
Abstract :
In this paper a new edge and motion adaptive normal definition to higher 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
Keywords :
digital filters; edge detection; interpolation; motion estimation; video signals; edge analysis; edge controlled spatial upconversion; edge information; frame difference signal; higher definition; interfield analysis; interfield edge detection; interpolation; motion adaptive normal definition; motion controlled spatial upconversion; motion information; scanning rate conversion algorithm; steerable FIR-filters; Adaptive control; Filtering; Image converters; Image edge detection; Interpolation; Maximum likelihood detection; Motion control; Motion detection; Nonlinear filters; Programmable control;
Journal_Title :
Consumer Electronics, IEEE Transactions on
