Abstract
Deinterlacing is a scanning-format conversion technique that can convert
interlaced pictures to progressive ones. Progressive televisions or monitors
intended for displaying conventional interlaced programs have to apply deinterlacing
techniques as required. Motion adaptive deinterlacing has been used widely
in various kinds of commercial products, but the picture quality in motion
areas still has much room for improvement. Motion compensated deinterlacing
solves this problem by interpolation along the motion trajectory and thus
is becoming the main trend of the next generation of deinterlacing algorithms.
However, it suffers visible artifacts caused by incorrect motion vectors.
To improve such imperfect pictures, this paper presents a motion compensation
algorithm with more accurate motion estimation and more efficient artifact
detection for digital television displays. Soft-switching between intra and
inter interpolations is realized by characterizing different areas of the
picture. Simulation results indicate that the proposed scheme can produce
high-quality pictures with less flicker and imperceptible artifacts than a
number of other techniques that were tested. In particular, the simulated
peak signal-to-noise ratio (peak SNR) is basically 3–10 dB better than
a comparable and prominent deinterlacing method.
© 2007 IEEE
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