Patent ID: 6262773
Filing Date: 2001-07-17
Classification: H04N,Y10S

Abstract:
A method of processing a video field of an interlaced video containing at least a first line and a second line, where each of said first and second lines includes a plurality of pixels, to generate an interpolated line where said interpolated line includes a plurality of interpolated pixels located intermediate said first and second lines, said method comprising the steps of:(a) selecting a first set of said pixels from said first line of said field;(b) generating a first set of filtered values by filtering said first set of said pixels with a first filter;(c) identifying at least one edge location in said first set of said filtered values by a first filtered value of said first set of said filtered values being at least one of less than and equal to a first predetermined value and a second filtered value of said first set of said filtered values being at least one of greater than and equal to said first predetermined value;(d) selecting a second set of said pixels from said second line of said field;(e) generating a second set of filtered values by filtering said second set of said pixels with a second filter;(f) identifying at least one edge location in said second set of said filtered values by a first filtered value of said second set of said filtered values being at least one of less than and equal to a second predetermined value and a second filtered value of said second set of said filtered values being at least one of greater than and equal to said second predetermined value; and(g) interpolating based on said at least one said edge location of step (c) and said at least one said edge location of step (f) to generate at least one of said interpolated pixels of said interpolated line.