I. Introduction
With increasing demand for video through various new applications and use cases, ITU-T Study Group 16 (VCEG) and ISO/IEC JTC1/SC 29/WG 11 (MPEG) formed joint video exploration team (JVET) in October 2015 to develop advance video coding technologies beyond the High Efficiency Video Coding (HEVC) standard [1][2]. After three years of exploration, the group launched a new project in April 2018 to develop the next generation video coding standard, Versatile Video Coding (VVC). During the preparation of the paper, the JVET has finished the first version specification of the VVC standard [3]. Test results demonstrate that the VVC can provide about 40% bit-rate savings for 4K video sequences with equivalent objective quality compared to the prior HEVC standard [4].