Study on Film Grain Synthesis
The present document attempts to evaluate the performance and to justify any potential benefits of film grain synthesis technologies for video compression, a qualitative and quantitative analysis on what would be the costs and benefits of using such technologies would be needed.
Clause 4 documents new content that could be used for the purpose of evaluating film grain synthesis technologies and provides some information on the content characteristics. Clause 5 describes a film grain synthesis tool named as the "FGC SEI message designer", which focuses on one particular film grain synthesis technology, i.e. the film grain characteristics (FGC) SEI message and the underlying film grain synthesis technologies it supports and permits the design and visualization of film grain synthesis parameters in the context of that technology. Clause 6 provides some suggestions on how to achieve interoperability using the FGC SEI message while Clause 7 proposes new scenarios that could be added in 3GPP TR 26.955 [2] for the evaluation of film grain synthesis technologies and provides some preliminary results not validated yet. Finally, Clause 8 introduces some initial considerations on UE requirements.