3 ms·

>As for HFR content being "easily" downsampled - it really isn't, at least not with respect to motion blur Er, why not? Motion blur is simply time integration.

by dTal 7y ago

>As for HFR content being "easily" downsampled - it really isn't, at least not with respect to motion blur Er, why not? Motion blur is simply time integration. Why can't you simply average adjacent frames during your framerate decimation? In fact, since "real" motion blur from shuttering uses a likely-suboptimal square windowing function (shutter is binary open/closed), I'd hazard it possible that motion blur computed from a higher source framerate could potentially be more perceptually pleasing (by using a smoother windowing function). You have more information to work with, after all.

dperfect 7y ago
> Why can't you simply average adjacent frames during your framerate decimation? In theory you could, but in practice, it doesn't work very well and you tend to get some really nasty artifacts depending on the motion of the scene. There's a lot more to it than simply averaging adjacent frames since those source frames likely aren't capturing perfect 360° shutter angle time slices that seamlessly align (temporally) back-to-back.