  In recent years, screen content (SC) video including computer generated text,
graphics and animations, have drawn more attention than ever, as many related
applications become very popular. To address the need for efficient coding of
such contents, a number of coding tools have been specifically developed and
achieved great advances in terms of coding efficiency. The inclusion of screen
content coding (SCC) features in all the recently developed video coding
standards (namely, HEVC SCC, VVC, AVS3, AV1 and EVC) demonstrated the
importance of supporting such features. This paper provides an overview and
comparative study of screen content coding technologies, with discussions on
the performance and complexity aspects for the tools developed in these
standards.
