Patent ID: 8212939

Claim:
A method for assessing the quality of a video sequence, which is output by a video capture device, by attributing at least one score MOSo to said sequence, said method comprising the steps of calculating a series of interframe similarities s(i) of said sequence, each interframe similarity s(i) indicative of a similarity of two consecutive frames in said sequence, using said interframe similarities s(i) for calculating said score MOSo, calculating a downsampling factor DS from said interframe similarities s(i) and using said downsampling factor DS for calculating said score MOSo, comparing said interframe similarities s(i) to a first threshold value, an interframe similarity s(i) being less than the first threshold value indicating a frame change between frames i−1 and i, thus allowing a calculation of a series of interframe distances between frame changes, binning said interframe distances for calculating a series of bin values H(i), with bin i corresponding to an interframe distance i, and calculating said downsampling factor DS from the largest bin values, wherein said downsampling factor DS is calculated from DS = i ⁢ ⁢ 1 · H ⁡ ( i ⁢ ⁢ 1 ) + i ⁢ ⁢ 2 · H ⁡ ( i ⁢ ⁢ 2 ) H ⁡ ( i ⁢ ⁢ 1 ) + H ⁡ ( i ⁢ ⁢ 2 ) , with bins i1 and i2 being the bins with the two largest bin values H(i1), H(i2).