Filter design and its application for scanning format conversion

Abstract

This letter presents the issue of interpolating missing line components at the interlaced signals, a procedure called deinterlacing. A filter design method is introduced in detail, utilizing a least-squares algorithm with training set for the requested deinterlacing filter. A thorough research of deinterlacing performance and system complexity is executed. The proposed filter design and its application on deinterlacing is compared with other conventional filter-based deinterlacing methods in terms of quality measures. It was concluded to show outstanding performance and speed trade-off among the methods compared. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.4.040504]