This book constitutes the refereed proceedings of the 20th International Forum on Digital Multimedia Communication, IFTC 2023, held in Beijing, China, December 21–22, 2023.

The 57 full papers included in this book were carefully reviewed and selected from 150 submissions. They were organized in topical sections as follows:

CCIS 2066: Image Processing, Media Computing, Metaverse and Virtual Reality, and Multimedia Communication.

CCIS 2067: Quality Assessment, Source Coding, and Application of AI.