Global-adaptive deinterlacing systems and methods for reducing scintillation and feathering artifacts. Motion adaptive deinterlacing (MADI) local motion quantization thresholds are adaptively adjusted according to the amount of global motion present in the video sequence, thereby minimizing scintillation and feathering artifacts when deinterlacing the fields. A set of global motion scenarios are defined for the purpose of classifying fields, and a number of global motion indicators are used to detect on a field-by-field basis different global motion scenarios. The global motion indicators are corrected to reduce Luma dependencies, thereby improving reliability and robustness. Depending on the global motion scenario of a field, the local motion thresholds are adaptively adjusted. The adaptive adjustment of quantization thresholds are optionally also applied to temporal noise reduction and cross-color suppression.
CROSS REFERENCE TO RELATED APPLICATIONS
This patent application takes priority under 35 U.S.C. 119(e) to U.S. Provisional Patent Application No. 60/654,263 filed on Feb. 18, 2005 entitled "GLOBAL MOTION ADAPTIVE SYSTEM WITH MOTION VALUES CORRECTION WITH RESPECT TO LUMINANCE LEVEL" by Eduardo Rogelio Corral Soto that is incorporated by reference in its entirety.
