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ICLR, 2019 Jiahe Li 2019.1.24.

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Presentation on theme: "ICLR, 2019 Jiahe Li 2019.1.24."— Presentation transcript:

1 ICLR, 2019 Jiahe Li

2 Outlines Introduction Experiments Conclusions

3 Introduction: Texture versus Shape
Classification of a standard ResNet-50

4 Data Sets Original (160 natural colour images of objects (10 per category) with white background) Greyscale Silhouette Edges Texture 4 networks: AlexNet, GoogLeNet, VGG16, ResNet50.

5 Results

6 Data Sets Cue conflict Images generated using iterative style transfer (Gatys et al., 2016) between an image of the Texture data set (as style) and an image from the Original data set (as content). We generated a total of cue conflict images (80 per category), which allows for presentation to human observers within a single experimental session.

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8 Stylized-ImageNet (SIN)
AdaIN style transfer (Huang & Belongie, 2017) Different stylization techniques Take prohibitively long with an iterative approach

9 Overcoming the texture bias of CNNs
AlexNet: 195, VGG-16: 212, ResNet-50: 299

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11 Robustness and Accuracy of Shape-based Representation

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13 Robert Geirhos et al. Generalisation in humans and deep neural networks, 2018 NeurIPS

14 Conclusions Texture bias of CNNs trained on IN
A step towards more plausible models of human visual object recognition Emergent benefits


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