Title :
HDTV down-conversion decoder
Author :
Bao, Jay ; Sun, Huifang ; Poon, Tommy C.
Author_Institution :
ATV Lab., Mitsubishi Electr., Somerset, NJ, USA
fDate :
8/1/1996 12:00:00 AM
Abstract :
In the near future we assume that the advanced television (ATV) broadcasts will be a mixture of HDTV and SDTV. We propose a HDTV down-conversion decoder which can decode the Grand Alliance HDTV bitstreams and display them on SDTV or NTSC monitors. The key technique is a frequency synthesis which decompresses the HDTV bitstreams without full decoding or spatial sampling processes, instead of synthesizing a set of new 8×8 coefficients from the coefficients of four original 8×8 blocks. The intent is to provide high quality reconstructed video with lower spatial resolution and less complexity, and thus less computing and memory requirements
Keywords :
decoding; digital television; discrete cosine transforms; high definition television; image reconstruction; image resolution; image sampling; signal synthesis; television broadcasting; transform coding; video coding; ATV broadcasts; DCT coefficients; Grand Alliance; HDTV bitstreams; HDTV down conversion decoder; NTSC monitors; SDTV monitors; advanced television; computing requirements reduction; decoding; frequency synthesis; high quality reconstructed video; memory requirements reduction; spatial resolution; spatial sampling; Decoding; Discrete cosine transforms; Displays; Frequency synthesizers; HDTV; Low pass filters; Spatial resolution; Sun; TV broadcasting; Video coding;
Journal_Title :
Consumer Electronics, IEEE Transactions on
