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What Do Deep CNNs Learn About Objects?

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arxiv 1504.02485 v1 pith:4FFJL7SK submitted 2015-04-09 cs.CV

What Do Deep CNNs Learn About Objects?

classification cs.CV
keywords cnnsdeepimageinvariantlearnparametersrepresentationswhat
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Deep convolutional neural networks learn extremely powerful image representations, yet most of that power is hidden in the millions of deep-layer parameters. What exactly do these parameters represent? Recent work has started to analyse CNN representations, finding that, e.g., they are invariant to some 2D transformations Fischer et al. (2014), but are confused by particular types of image noise Nguyen et al. (2014). In this work, we delve deeper and ask: how invariant are CNNs to object-class variations caused by 3D shape, pose, and photorealism?

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