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contains camera noise, while Texas contains significant compression artifacts (e.g.
blocking). Video frames that were spatially upscaled by a factor of 1 : 2 using single
frame bicubic interpolation, 3-D ISKR, and MASK are shown in Figs. 13(b)-(d) and
14(b)-(d), respectively. Also, Figs. 13(e)-(h) and 14(e)-(h) show selected portions of
(a) Input
(b) Bicubic interpolation
(c) 3-D ISKR
(d) MASK
(e) Input
(f) Bicubic interpolation
(g) 3-D ISKR
(h) MASK
Fig. 13
Spatial upscaling of Spin-Calendar video sequence: (a) the input frame at
t
= 5, (b)-
(d) the upscaled video frames by bicubic interpolation, 3-D ISKR, and MASK, respectively.
(e)-(h) Enlarged images of the input frame and the upscaled frames by cubic interpolation,
3-D ISKR, and MASK, respectively.
