I've dabbled with optical flow for a hobby side project (using the Windows ShaderEffectClass of all things). I worked on the Kinect back in the day; while I was primarily audio, I had a fascination of applying DSPs to two- and three-dimensional temporal data.
I've always felt that it was a missed opportunity to tap into temporal information for entity recognition. I'm excited to see this take hold!
@Darkphibre, wonderful background! Yes, and optical flow + recent advancements in deep learning is also certainly something exciting to see flourish! Action recognition seems like a promising research area (https://research.google.com/ava/ CVPR '18).
I've always felt that it was a missed opportunity to tap into temporal information for entity recognition. I'm excited to see this take hold!