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Image Reconstruction in a Wide Aspect Ratio HDTV System

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3 Author(s)
LoCicero, J. ; Illinois Inst. of Tech.,Chicago,IL, USA ; Pazarci, M. ; Rzeszewski, T.

One of the important characteristics of a high-definition television (HDTV) image is a wide aspect ratio. In some HDTV systems the image is segmented and different formats are used to transmit portions of the image. We address the problem of image reconstruction at the receiver and present an analysis of a wide aspect ratio HDTV system. Several image reconstruction techniques are described, including a channel-dependent design, and their effectiveness discussed. We also present a channel-independent system for image reconstruction that utilizes a vertical interval test line. Performance has been evaluated, via computer simulation, using still images. The results indicate an imperceptible amount of artifacts at the edge-center joints with an overlap as small as one picture element for the channel-independent reconstruction technique.

Published in:

Communications, IEEE Transactions on  (Volume:34 ,  Issue: 9 )