Versatile Video Coding (VVC) was finalized in July 2020 as the most recent international video coding standard. It was developed by the Joint Video Experts Team (JVET) of the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG) to serve an ever-growing need for improved video compression as well as to support a wider variety of today's media content and emerging applications. This paper provides an overview of the novel technical features for new applications and the core compression technologies for achieving significant bit rate reductions in the neighborhood of 50% over its predecessor for equal video quality, the High Efficiency Video Coding (HEVC) standard, and 75% over the currently most-used format, the Advanced Video Coding (AVC) standard. It is explained how these new features in VVC provide greater versatility for applications. Highlighted applications include video with resolutions beyond standard-and high-definition, video with high dynamic range and wide color gamut, adaptive streaming with resolution changes, computer-generated and screen-captured video, ultralow-delay streaming, 360° immersive video, and multilayer coding e.g., for scalability. Furthermore, early implementations are presented to show that the new VVC standard is implementable and ready for real-world deployment.

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This paper provides an overview of SHVC, the scalable extensions of the High Efficiency Video Coding (HEVC) standard, published in the second version of HEVC. In addition to the temporal scalability already provided by the first version of HEVC, SHVC further provides spatial, SNR, bit depth, and color gamut scalability functionalities, as well as combinations of any of these. The SHVC architecture design enables SHVC implementations to be built using multiple repurposed single-layer HEVC codec cores, with the addition of inter-layer reference picture processing modules. The general multi-layer high-level syntax design common to all multi-layer HEVC extensions, including SHVC, MV-HEVC, and 3D-HEVC, is described. The inter-layer reference picture processing modules, including texture and motion resampling and color mapping, are also described. Performance comparisons are provided of SHVC versus simulcast HEVC and versus the Scalable Video Coding (SVC) extension to H.264/AVC. Index Terms-SHVC, HEVC, JCT-VC, JCT-3V, MPEG, scalable video coding, SVC, video standards, VCEG, video compression.Y. Ye is with InterDigital Communications LLC,

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