Title :
High quality transmission system design for HDTV signals
Author :
Okumura, Yasuyuki ; Irie, Kazunari ; Kishimoto, Ryozo
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
Abstract :
An ATM (asynchronous transfer mode)-based broadband network architecture and a picture coding algorithm for a high-quality HDTV (high-definition television) transmission system are proposed. The HDTV coding algorithm is based on subband coding, and its suitability for maintaining original high picture quality has been confirmed. Computer simulation results show that SNR is about 38 dB when average entropy is 1 b/pel. The coding algorithm can be applied to HDTV transmission between broadcast stations by optimizing its coding parameters
Keywords :
broadband networks; encoding; high definition television; picture processing; television broadcasting; time division multiplexing; video signals; 38 dB; ATM-based broadband network; HDTV signals; SNR; picture coding algorithm; subband coding; transmission system design; Asynchronous transfer mode; B-ISDN; Bit rate; Broadband communication; Decoding; Discrete cosine transforms; HDTV; Laboratories; Switching circuits; TV;
Conference_Titel :
Communications, 1990. ICC '90, Including Supercomm Technical Sessions. SUPERCOMM/ICC '90. Conference Record., IEEE International Conference on
Conference_Location :
Atlanta, GA
DOI :
10.1109/ICC.1990.117233
