Title :
Predictive naturalness preserving transform coding of monochrome images
Author :
Osinubi, A.O. ; King, R.A.
Author_Institution :
Dept. of Electr. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
Transform predictive coding of pictorial data using the naturalness-preserving transform (NPT) is investigated. The hybrid coding system uses one-dimensional NPTs and parallel differential pulse-code modulation (DPCM) systems. The problem of determining the basis giving the minimum mean square error (MSE) for coding images is addressed. Results of coding schemes using the Hadamard NPT and the sine NPT are presented. Superior performance was achieved by adapting the NPT bases to image subarray statistics. The MSE improvement is higher at low bit rates
Keywords :
data compression; picture processing; image data compression; image subarray statistics; mean square error; monochrome images; naturalness preserving transform coding; parallel differential pulse-code modulation; picture processing; predictive coding; Bit rate; Error correction; Error correction codes; Image coding; Mean square error methods; Modulation coding; Predictive coding; Pulse modulation; Statistics; Transform coding;
Conference_Titel :
Electrotechnical Conference, 1989. Proceedings. 'Integrating Research, Industry and Education in Energy and Communication Engineering', MELECON '89., Mediterranean
Conference_Location :
Lisbon
DOI :
10.1109/MELCON.1989.50040
