(1952) A method for the construction of minimum Dubrovnik. redundancy codes, Proc. IRE, September, pp. 1098 - 1101. CCIR (1990a) Encoding parameters of digital television for studios, IEEE (1990a) IEEE LCS (Lightwave communication systems) - Recommendation 601-2, Dusseldorf. Special Issue on Optical Fibre Video Delivery Systems of the CCIR (1990b) Transmission of component-coded digital television Future, 1, (1), February. signals for contribution-quality applications at bit rates near IEEE (1990b) Specification for the implementation of 8 X 8 Inverse 140Mbit/s, Recommendation G.721, Dusseldorf. Discrete Cosine Transform, Draft Standard P1180/D2. CCIR (1990c) Transmission of component-coded digital television ISO/IEC (1991) Digital compression and coding of continuous-tone signals for contribution-quality applications at the third hierar- still images: Part 1: Requirements and guide-lines, Draft Inter- chial level of CCITT Recommendation G.702, Recommenda- national Standard 10918-1.. tion 723, Dusseldorf. ISO/IEC (1992) Coding of moving pictures and associated audio for CCIR (1990d) Bit-rate reduction for digital television signals, Re- digital storage media at up to about 1.5Mbit/s, Draft Interna- port 1089, Dusseldorf. tional Standard 11172-1. CCIR (1990e) Transmission performance of television circuits de- International Broadcasting Convention, (1980-1990) IEE Con- signed for use in international connections, Recommendation ference Publications, Nos. 327 (1990), 293 (1988), 268 (1986), 567, Dusseldorf. 240 (1984), 220 (1982), 191 (1980) etc. CCIR (1990f) Tolerances for transmission time differences between International Journal (1989) Int. Journal of Digital & Analog the vision and sound components of a television signal Recom- Cabled Systems-Special Issue on Cable TV, 2, (2), April-June. mendation 717, Dusseldorf. Jacquin, A. (1990) Fractal image coding based on a theory of CCITT (1984a) Basic rate user-network interface, Recommendation iterated contractive image transformations, SPIE Proc. Visual 1.420, Mala