Title :
A Resizing Algorithm With Two-Stage Realization for DCT-Based Transcoding
Author :
Shu, Haiyan ; Chau, Lap-Pui
Abstract :
In video transcoding, arbitrary resizing is always desired for end users with different display capabilities. In this paper, a two-stage resizing structure is proposed for arbitrary resizing. It gives a general solution for the realization of arbitrary resizing in the transform domain. Two constraints are given for the selection of parameter set to benefit the anti-aliasing and picture quality. Illustrative examples show that our proposed two-stage resizing structure, with the qualified parameter sets, can provide an appropriate solution for arbitrary resizing
Keywords :
discrete cosine transforms; transcoding; transform coding; video coding; DCT-based transcoding; anti-aliasing; picture quality; two-stage resizing structure; video transcoding; Bandwidth; Discrete cosine transforms; Displays; Frequency; Image sampling; Sampling methods; Spatial resolution; Streaming media; Sun; Transcoding; Anti-aliasing; arbitrary resizing; two-stage implementation; video transcoding;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
DOI :
10.1109/TCSVT.2006.887075
