IEEE MMSP 2020 invites proposals for its Grand Challenges program. We invite the MMSP community to collectively define and tackle the Grand Challenges in multimedia domain for the next 5 years. MMSP Grand Challenges aim to inspire new ideas in the MMSP community and create momentum for future collaborative work. Challenge papers will be indexed as regular papers or demo papers in the proceedings of MMSP. Find out more about the Call for Grand Challenges here.