Title :
An experimental home-use digital VCR with three dimensional DCT and superimposed error correction coding
Author :
Onishi, Ken ; Itow, Takashi ; Nishikawa, Hirofumi ; Sugiyama, Kazuhiro ; Yoshida, Hideo ; Nagasawa, Masato ; Ido, Kihei ; Nakagawa, Kunihiko ; Ishida, Yoshinobu ; Kunii, Satoshi
Author_Institution :
Mitsubishi Electr. Corp., Kyoto, Japan
fDate :
8/1/1991 12:00:00 AM
Abstract :
An experimental digital VCR system for home use is described. A high-quality moving picture is obtained by a newly developed bit rate reduction technology, which is based on subband and three-dimensional DCT (discrete cosine transform) coding. A high-density magnetic recording method which adopts a 12-to-15 modulation scheme and superimposed error correction coding enable sufficient recording time with a small cassette. Component video signals with a ration of 4:2:2 were compressed to about the ratio of 1/7, keeping a high quality, using the subband and 3-D-DCT coding method
Keywords :
codecs; encoding; error correction codes; picture processing; transforms; video tape recorders; 12-to-15 modulation scheme; bit rate reduction technology; high efficiency video codec; high-density magnetic recording method; high-quality moving picture; home-use digital VCR; superimposed error correction coding; three-dimensional DCT coding; Digital magnetic recording; Discrete cosine transforms; Error correction; Error correction codes; Frequency; Magnetic heads; Magnetic recording; Sampling methods; TV; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
