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Vid2Seq: A pretrained visual language model for describing multi-event videos

ai.googleblog.com

1–10 of 19 posts

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#5
post #3

one of cool google projects that does not take off because its so hard to run and integrate with other cool things...

If we take the less cynical take, it'll end up in Youtube as audio description for people with visual impairments.

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#6
Had this idea about 5 years ago, seems like it might be viable now, would love to see a video analyzer that creates relationship graphs using sentiment analysis. Ex. who responds to whom, what their tone is, how often. Hopefully with modern methods, it wouldn't take too many examples to pick out the dimensionality of expression (cheating out vs in, loudness + arousal, whining on the spectrum of playful to hurt, confidence, clarity)

Could test against TV shows and see if it gets an understanding of the social dynamics.

Plus could uncover a lot of the editing technique, I forget what the term is, when they create context from unrelated scenes by cutting from one to the other.

Would also pick up the general plot formula pretty quickly by mapping out the relative intensity and direction (action, tense, playful, romantic) of scenes.

I remember reading about a startup that did this or something similar for TV shows + movies a while back in the New Yorker, the idea was that they could predict how well it would do from a pilot or even the script.

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#7
post #3

one of cool google projects that does not take off because its so hard to run and integrate with other cool things...

This isn’t really a “google project” in the way I think about that term, but it’s a research project. Google’s research is constantly advancing and when things get far enough along they do tend to get used in production. Individual research papers are just a step along the way. This research seems useful for training video generation systems like transformers and especially multi modal systems. Imagine you have a robot that needs to understand the world around it. It needs to interpret text input (likely as voice) but it also needs to understand complex scenes around it. If you can get a system to accurately describe YouTube videos (a captive data set) then it should also be able to understand a live video feed on a robot. That’s an important part of a robot. But it is not in itself a product or notable project.

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#8
post #6

Had this idea about 5 years ago, seems like it might be viable now, would love to see a video analyzer that creates relationship graphs using sentiment analysis. Ex. who responds to whom, what their tone is, how often. Hopefully with modern methods, it wouldn't take too many examples to pick out the dimensionality of expression (cheating out vs in, loudness + arousal, whining on the spectrum of playful to hurt, confi…

Some of this: https://vi.microsoft.com/en-us

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#9
post #6

Had this idea about 5 years ago, seems like it might be viable now, would love to see a video analyzer that creates relationship graphs using sentiment analysis. Ex. who responds to whom, what their tone is, how often. Hopefully with modern methods, it wouldn't take too many examples to pick out the dimensionality of expression (cheating out vs in, loudness + arousal, whining on the spectrum of playful to hurt, confi…

> when they create context from unrelated scenes by cutting from one to the other.

Do you mean juxtaposition?

Re: Vid2Seq: A pretrained visual language model for describing multi-event videos

#10
Very cool work but I'm a bit perplexed by their first example/diagram from the blog post (which is presumably cherry-picked?). The event "The dogs are waiting." overlapping with the event "The dogs are pulling the sled." seems like a poor joint labeling of the events. The two obviously cannot co-occur, and this feels like a pretty easy opportunity for the model to demonstrate its understanding of event disentanglement.

The remaining examples from the paper don't do much in the way of convincing me this is a one-off issue. The recognition of multiple events globally is good, but perhaps extra care should be taken at overlapping event boundaries (e.g. additional local constraints in the loss/regularization scheme that encourage event splitting or time boundaries "snapping-to-grid" if confidence of co-occurrence is low).

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