4 November 1993 Frequency scanning in digital coding for HDTV broadcasting
Author Affiliations +
Proceedings Volume 1976, High-Definition Video; (1993) https://doi.org/10.1117/12.161492
Event: Video Communications and Fiber Optic Networks, 1993, Berlin, Germany
This paper describes an algorithm for frequency scanning (FS) of DCT coefficients which has been submitted to MPEG (Motion Picture Experts Group) in contrast to the well-known block scanning technique. It presents the principle and the coding method of the new scanning technique. With respect to coding the scanned coefficients, an entropy coding method, called modified universal variable length coding (MUVLC), which is derived from the already published UVLC technique, is employed. In the test model (TM) system of MPEG the coding efficiency of both MUVLC and the MPEG VLC was compared. The results showed that the MUVLC technique gives higher coding efficiency and more flexibility in a broadcast environment.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guenter Schamel, Guenter Schamel, H. Li, H. Li, "Frequency scanning in digital coding for HDTV broadcasting", Proc. SPIE 1976, High-Definition Video, (4 November 1993); doi: 10.1117/12.161492; https://doi.org/10.1117/12.161492


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