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(a) Input
(b) Cubic interpolation
(c) NL-mean based SR
(d) 3-D ISKR
(f) MASK
Fig. 11 Spatial upscaling of Car-phone video sequence: (a) input video frames at time t = 25
(144 × 176, 30 frames) and (b)-(f) the upscaled frames by single frame bicubic interpolation,
NL-mean based SR [11], 3-D iterative SKR [13], and MASK, respectively.
 
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