Patent ID: 8019172

Claim:
A method for generating, from a first data sequence of video data having a sequence of data values, a second data sequence of video data having a higher resolution than the first data sequence, the method comprising: generating an intermediate sequence from the first data sequence (a′[k]) by inserting at least one specified intermediate value between every two consecutive data values of the first data sequence (a′[k]); filtering the intermediate sequence (a[k]) to generate the second data sequence, this filtering exhibiting the following procedural steps in order to generate a data value (s[i]) of the second data sequence (s[k]), where the filtering comprises low-pass filtering at least two data values (a[i−1], a[i], a[i+1]) of the intermediate sequence (a[k]), at least one of which (a[i+1]) comes before a given data value (a[i]) in the intermediate sequence (a[k]) and at least one of which (a[i−1]) comes after the given data value in the intermediate sequence (a[k]), in order to prepare a low-pass filter value (tp[i]); first high-pass filtering of at least two data values (a[i−1], (a[i−3]) of the intermediate sequence that come before the given data value in the intermediate sequence (a[k]) in order to prepare at least one first high-pass filter value (hp 1 [i]); second high-pass filtering of at least two data values (a[i+1], (a[i+3]) of the intermediate sequence that come after the given data value in the intermediate sequence (a[k]) to prepare at least one second high-pass filter value (hp 2 [i]); rank-order filtering at least to the at least one first high-pass filter value (hp 1 [i]) and the at least one second high-pass filter value (hp 2 [i]) to prepare a rank-order filter value (hp[i]); and combining the low-pass filter value (tp[i]) and the rank-order filter value to prepare the data value (s[i]) of the second data sequence, of higher resolution video data in comparison to the first data sequence.