Method and apparatus for processing video pictures, in particular for large area flicker effect reduction

摘要

Plasma Display Panels (PDP) are becoming more and more interesting for TV technology. Due to the larger size of PDPs, with larger viewing angle the large area flicker effect will become more serious in the future, in particular when handling 50Hz video standards. This invention proposes a different sub-field organisation, with different coding, which reduces large area flicker artefact, and which is characterised by: 1. Grouping of sub-fields (SF) in 2 sub-field groups (G1, G2), of similar structure. 2. The 2 sub-field groups (G1, G2) are identical in terms of the most significant sub-fields (SF) and different in terms of the least significant sub-fields (SF). 3. A sub-field coding process that distributes luminance weight symmetrically over the 2 sub-field groups (G1, G2) so as to minimise the 50Hz large area flicker luminance component.