Direct Display of Integer ACES Content for Post-Production Environments

Abstract

The Image Interchange Framework (IIF), created by the Academy of Motion Picture Arts and Sciences with the goal of providing a unified post-production workflow, has seen increased interest in recent years. Central to the IIF is the red, green, and blue wide-gamut color space defined by the Academy of Color Encoding Specification (ACES). For output device viewing, the ACES data must first be rendered through the reference rendering transform (RRT) and the output device transform (ODT). Recently, a quasi-logarithmic 12-bit integer ACES encoding scheme was proposed, and initial results are presented on the direct display of integer ACES content on a Dolby PRM-4200 monitor. Frames were delivered directly to the monitor across a 12-bit dual-link serial digital interface, and the decoding RRT and device ODT were computed via one- and three-dimensional (3D) lookup tables (LUTs) resident on the monitor. Several LUT designs were considered, and the limitations of each, including failure modes, are discussed.