Compatible HDTV coding for broadband ISDN

A compatible digital HDTV (high-definition television) coding scheme is proposed for broadband ISDN (integrated services digital network) applications. This scheme is capable of compressing HDTV for transmission at the H4 access rate of roughly 135 Mb/s with an embedded signal for delivering EQTV (extended quality TV) over a subchannel of 45 Mb/s. Two major processing components are introduced in this system to facilitate compatible coding; one is decimation in the frequency domain and the other is progressive coding. The decimation, performed in the DCT (discrete cosine transform) domain, results in a low pass filtered and decimated version of HDTV. The progressive coding squeezes the decimated signal into the 45 Mb/s subchannel and properly refines it for 135 MB/s HDTV coding. Simulation results show that high quality HDTV can be achieved at 135 Mb/s and that the quality of the embedded 45 Mb/s signal is also very good.<<ETX>>

[1]  Richard Norman Jackson,et al.  Compatible Systems for High-Quality Television , 1983 .

[2]  William K. Pratt,et al.  Scene Adaptive Coder , 1984, IEEE Trans. Commun..

[3]  L. Rabiner,et al.  The chirp z-transform algorithm and its application , 1969 .

[4]  Takashi Fujio.  A Study of High-Definition TV System in the Future , 1978, IEEE Transactions on Broadcasting.

[5]  Eric Dubois,et al.  Encoding and Progressive Transmission of Still Pictures in NTSC Composite Format Using Transform Domain Methods , 1986, IEEE Trans. Commun..

[6]  John D. Lowry.  B-MAC: An Optimum Format for Satellite Television Transmission , 1984 .

[7]  H. Buley,et al.  Inter/intraframe coding of color TV signals for transmission at the third level of the digital hierarchy , 1985, Proceedings of the IEEE.

[8]  Kou-Hu Tzou,et al.  An efficient pyramid image coding system , 1987, ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[9]  King Ngi Ngan.  Two-dimensional transform domain decimation techniques , 1986, ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[10]  Edward H. Adelson,et al.  The Laplacian Pyramid as a Compact Image Code , 1983, IEEE Trans. Commun..

[11]  J. L. LoCicero,et al.  A Compatible High-Definition Television System (SLSC) with Chrominance and Aspect Ratio Improvements , 1985 .

[12]  Kou-Hu Tzou,et al.  Bit-sliced progressive transmission and reconstruction of transformed images , 1986, ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[13]  John W. Woods,et al.  Subband coding of images , 1986, IEEE Trans. Acoust. Speech Signal Process..

[14]  Hamid Gharavi,et al.  Sub-Band Coding Of Digital Images Using Two-Dimensional Quadrature Mirror Filtering , 1986, Other Conferences.

[15]  Ting-Chung Chen,et al.  A 16X16 Discrete Cosine Transform Chip , 1987, Other Conferences.

[16]  K. Tzou.  Progressive Image Transmission: A Review And Comparison Of Techniques , 1987 .