Abstract
A motion-compensated image signal interpolation unit ( 200 ) for generating an interpolated image being located at a first predetermined temporal distance (a) from the first image and being located at a second predetermined temporal distance (1-a) from the second image is disclosed. The interpolation unit ( 200 ) comprises: motion estimation means ( 202 ) for furnishing a first and a second motion vector relating to the first and second image; ; furnishing means ( 204, 206 ) for furnishing a first group of samples on basis of values of pixels of the first image and the first motion vector and for furnishing a second group of samples on basis of values of pixels of the second image and the second motion vector, and filtering means ( 212 ) for ordered statistical filtering of the samples of the first and the second group to produce a first value of a first pixel of the interpolated image ( 102 ), whereby a first quotient is substantially equal to a second quotient, the first quotient being determined by a first spatial distance (x1) between a first one of the samples of the first group and a second one of the samples of the first group and the first predetermined temporal distance (alpha), the second quotient being determined by a second spatial distance (x2); between a first one of the samples of the second group and a second one of the samples of the second group and the second predetermined temporal distance (1-alpha).
| Original language | English |
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| Patent number | US7974342 B2 |
| Publication status | Published - 5 Jul 2011 |