He was the chairman and a co-founder of the Joint Video Team (JVT) standardization committee that developed the H.264/AVC standard, and he personally edited large portions of it. In January 2010, he became a founding co-chairman of the Joint Collaborative Team on Video Coding (JCT-VC) and an editor for developing the High Efficiency Video Coding (HEVC) standard. In October 2015, he became a founding co-chairman of the Joint Video Experts Team (JVET) that developed the Versatile Video Coding (VVC) standard. He has also led and contributed to a number of other video and image related standardization projects such as extensions of ITU-T H.263 video coding, multiview and 3D video coding for AVC and HEVC, and JPEG XR image coding. He has also published research work on various topics relating to video and image compression.