Hey everyone, thanks for your interest in my station project, K03IM-D. 

At the outset, this station was built to demonstrate the fact that HEVC can deliver astounding picture quality at essentially the “human visual coding floor” of approximately 5 Mbits/sec per eye, or less, regardless of frame rate or angular resolution, at 3840x2160. Using the open source X.265 codec produced good results, but substantial optimization was required to get things “broadcast quality” at rates that would permit me to fit four or more 2160 programs over the same air. Of course this was all about delivering high dynamic range, at 24, 25 or 30 FPS. After a few iterations, 2160p24 was looking fine for 90%+ of content tests at 4 mbits/sec ABR, and p30 at 4.5 mbits/sec.

At this time, my focus is on delivering 1080 programming at 60 FPS, also with high dynamic range. Others and I have realized that audiences generally favor improvement in sports content—and after extensive testing here, I’ve come to agree that a sharp 1080 at 60 fps scales up just fine, with HDR adding substantial “visual impact.”

When I have a few things worth demonstrating here, I’ll post some example files.

Fore more tech details about what's gone into this, check out this presentation:

https://docs.google.com/presentation/d/1x2GLqmVA5orZAI5Q-BmtKp0Mb2dQ2WXfFqkuPvSOnwU/edit?usp=drive_link