Overview of Color Gamut Scalability

Displays' new rendering capabilities combined with the ever-growing number of video applications have fueled the emergence of new video formats addressing wider color gamut and larger frame size. Thus, the need in scalable compression technology to provide backward compatibility with legacy devices and capitalize on the superior compression performance of High Efficiency Video Coding (HEVC) has increased significantly. This paper gives an overview of the work carried out in the Joint Collaborative Team on Video Coding of ITU-T Study Group 16 (VCEG) and ISO/IEC JTC1/SC29/WG11 motion picture experts group (MPEG) to define scalable extensions of HEVC (SHVC) targeting these market requirements. The color gamut scalability (CGS) tool of SHVC is specially designed to support efficient scalable coding with multiple layers in different color spaces. The genesis of the SHVC-CGS tool is presented and the performance of the various proposals is compared. Finally, the design of the recently adopted SHVC-CGS inter-layer prediction is detailed. The experimental results validate its efficiency in coding video with extended color gamut and high dynamic range.

In this work we propose several full-color metagrating solutions for single waveguide-based Augmented and Virtual Reality near-eye display systems. The presented solutions are based on a combination of reflective and/or transmissive diffraction gratings inside or outside a waveguide. The proposed designs have high intensity across a wide angular range. Applying...

Using a collection of publicly available links to short form video clips of an average of 6 seconds duration each, 1,275 users manually annotated each video multiple times to indicate both longterm and short-term memorability of the videos. The annotations were gathered as part of an online memory game and...

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