Title :
Compatible coding of digital interlaced HDTV
Author :
Delogne, Paul ; Poncin, O. ; Caillie, B.V. ; Vandendorpe, L.
Author_Institution :
Catholic Univ. of Louvain, Belgium
fDate :
1/1/1993 12:00:00 AM
Abstract :
A compatible coding scheme for interlaced HDTV (high-definition television) is proposed. This scheme provides a standard definition signal and a second channel containing the additional information required to reach the HD resolution. The global scheme is of the pyramidal type: the standard TV is obtained by downsampling the HDTV signal by means of a field-based operation. The standard TV signal is coded, decoded, and upsampled. It is used as a prediction of the HD signal and the prediction error is coded in a second channel. In both branches, motion-compensated hybrid DCT coding is used. In addition, the DCT is taken within the frame
Keywords :
digital communication systems; discrete cosine transforms; high definition television; image coding; video signals; compatible coding scheme; digital interlaced HDTV; motion-compensated hybrid DCT coding; pyramidal coding scheme; standard definition signal; Decoding; Discrete cosine transforms; Displays; HDTV; High definition video; Image coding; Image resolution; Signal processing; Signal resolution; TV receivers;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
