Patent ID: 8045053
Filing Date: 2011-10-25
Classification: H04N

Abstract:
1. A video image deinterlacing apparatus, comprising: an intrafield processor responsive to field data depicting a time-varying video image, said intrafield processor configured to determine edge and edge steepness characteristics for a plurality of omitted pixels within a first field of the time-varying video image; and an interfield processor responsive to the field data, said interfield processor configured to identify pixels within the first field possessing time-invariant properties; wherein said intrafield processor is configured to determine edge and edge steepness characteristics for an omitted pixel within the first field by determining first differences between a plurality of pixel values for pixels within the first field located along a first line extending across the omitted pixel at a first angle and determining a sum of the first differences using a first slope variation calculator; and wherein said intrafield processor is further configured to determine edge and edge steepness characteristics for the omitted pixel within the first field by determining second differences between a plurality of pixel values for pixels within the first field located along a second line extending across the first field at a second angle orthogonal to the first angle and determining a sum of the second differences using a second slope variation calculator.