Fig. 3

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General architecture of the ConvEntion network. The image time series are first rearranged to embed the band information. Then each 3DCNN is fed with a sub-sequence of K inputs of the time series J(∊ ℝM×H×W×2 for M elements of images of size HxW) to create the new downsized sequence S (∊ ℝN×H′×W′×D). S is fed to the positional encoder in order to add the information about the position, which outputs F(∊ ℝN×H′×W′×D). Then F is passed to ConvBERT which has L layers. The 3D max-pooling is used to downsize the output of ConvBERT for the classifier.
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