Title :
A bit-rate reduction for MUSE signal
Author :
Nishino, Masakazu ; Yamamitsu, Chojuro
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
8/1/1990 12:00:00 AM
Abstract :
A novel bit-rate reduction method developed for the MUSE (multiple subNyquist sampling encoding) signal is discussed. This method uses an orthogonal transformation by which the MUSE data-rate is reduced from 1/2 to 1/3 of the original, maintaining a picture quality acceptable for the home-use digital VTR of a HDTV (high-definition television) system. By simultaneous application of two-dimensional DCT (discrete cosine transform) and nonlinear quantization methods for a quincuncial pixel arrangement formed within a field, an optimum data assignment between DCT coefficients and nonlinear quantization values is accomplished by using a variable length coding method
Keywords :
data compression; encoding; picture processing; transforms; DCT coefficients; HDTV; MUSE signal; bit-rate reduction; data a compression; data-rate; discrete cosine transform; high-definition television; home-use digital VTR; multiple subNyquist sampling encoding; nonlinear quantization; orthogonal transformation; picture quality; two-dimensional DCT; variable length coding; Discrete cosine transforms; Discrete transforms; Encoding; HDTV; Laboratories; Sampling methods; Signal resolution; TV; Video compression; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
