1. Second-generation image-coding techniques
2. ISO/IEC 14496-2:1999, ‘Information technology-coding of audio/ visual objects’, Part 2: Visual
3. ISO/IEC 11172-2:1991, ‘Coding of moving pictures and associated audio fordigital storage media at up to about 1.5 Mbps’
4. ISO/IEC 13818-2:1994, ‘Information technology-generic coding of moving pictures and associated audio’