Global motion adaptive system with motion values correction with respect to luminance level
AssigneeGenesis Microchip Inc.
InventorsEduardo Soto, Peter Swartz, Andrew MacKinnon
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Abstract
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.
Claims16
A global adaptive deinterlacing method for reducing feathering and scintillation artifacts, comprising:
- determining a contrast distribution;
- determining a correction factor;
- reading an R and and S signal;
- determining a global motion regions based upon the R and S signals;
- and
- determining presence of vertical motion.
A global adaptive deinterlacing system for reducing feathering and scintillation artifacts, comprising:
- a controller for:
- determining an amount of global motion present in a video sequence;
- adjusting one or more local motion quantizer thresholds according to the amount of global motion;
Dependencies are inferred from the claim text.