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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 12, NO. 4, APRIL 2002 217 Super-Resolution Still and Video Reconstruction
 

Summary: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 12, NO. 4, APRIL 2002 217
Super-Resolution Still and Video Reconstruction
From MPEG-Coded Video
Yucel Altunbasak, Andrew J. Patti, and Russell M. Mersereau
Abstract--There are a number of useful methods for creating
high-quality video or still images from a lower quality video
source. The best of these involve motion compensating a number
of video frames to produce the desired video or still. These
methods are formulated in the space domain and they require that
the input be expressed in that format. More and more frequently,
however, video sources are presented in a compressed format, such
as MPEG, H.263, or DV. Ironically, there is important information
in the compressed domain representation that is lost if the video is
first decompressed and then used with a spatial-domain method.
In particular, quantization information is lost once the video
has been decompressed. Here, we propose a motion-compen-
sated, transform-domain super-resolution procedure for creating
high-quality video or still images that directly incorporates the
transform-domain quantization information by working with
the compressed bit stream. We apply this new formulation to

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering