Next-Generation Video Compression Techniques

Abstract

The Motion Picture Experts Group is working on requirements for a new video codec, expected to be completed by 2020. The future-generation codec is anticipated to provide a 50% bitrate reduction compared with the High Efficiency Video Coding (HEVC) main profile for the same perceptual quality. Although this is sufficient for certain use cases, it may justify a future video coding standard for other use cases that require bitrate reductions higher than 50%. This paper focuses on target applications for the new video codec that includes 8K, virtual reality (VR) in 3DoF and 6DoF, the state of IP networks, and better compression through “Network Distributed Video Coding” (NDVC). The author elaborates on how new techniques leveraging content-aware encoding, elastic encoding, machine-learning techniques, and pre- and post-processing pairing can lead to factor four compression efficiency. This paper also compares different approaches including HEVC, HEVC enhanced with NDVC techniques, and the Joint Video Exploration Team codec compared with NDVC techniques. This paper focuses on target applications for the new video codec that includes 8K, VR in 3DoF and 6DoF, the state of IP networks, and better compression through “Network Distributed Video Coding” (NDVC).