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Which Deep Learning architecture is best for classifying short videos of variable length? I would like to classify videos that last from 1 up to 3 seconds.

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My suggestion is to use Convolutional and Recurrent layers in the same Neural Network.

You'd have to capture a given number of frames of a video (let's say one each 0.5 seconds), and feed arrays of screenshots into the model. Its structure would be:

  1. Conv (and MaxPool) layers to process pixel data - they will extract and process relevant information from each screenshot.
  2. LSTM layers - that will process their sequence, extracting meaning from their flow.
  3. Dense layers at the end to perform classification, with softmax activation at the output layer.

That's how I would do. It's going to be computationally expensive, if you don't have a GPU it won't be easy.

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  • $\begingroup$ I was thinking something similar to this. Thank you so much for your help. $\endgroup$ – Stefan Radonjic Nov 12 at 12:32
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    $\begingroup$ Glad to help, it looks like a really cool Computer Vision project $\endgroup$ – Leevo Nov 12 at 13:48

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