[Segmentation] Add Segment Anything Model #132
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…onal attention, etc
… partitioning and unpartitioning
…t multihead attention
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Adds Segment Anything model in three flavors:
deepvision.models.SAM_B...SAM_H)deepvision.models.PromptableSAM)deepvision.models.SAMAutoMaskGenerator)The SAM model is implemented in PyTorch only, however, most of the components are implemented in both PyTorch and TensorFlow. Components not implemented in TensorFlow are tracked in #129, #130 and #131.
The layers and classes that do expose both a PyTorch and TensorFlow implementation are:
deepvision.layers.WindowUnpartitioningdeepvision.layers.WindowPartitioningdeepvision.layers.DownscalingMultiheadAttentiondeepvision.layers.TwoWayAttentionBlockdeepvision.layers.TwoWayTransformerDecoderdeepvision.layers.RelativePositionalTransformerEncoderdeepvision.layers.RelativePositionalMultiheadAttentiondeepvision.layers.RandomPositionEmbeddingdeepvision.layers.AddDecomposedRelativePositionsAll layers have identical implementations and parameter counts.