Self-Supervised One-Shot Learning for Automatic Segmentation of StyleGAN Images

• URL: http://arxiv.org/abs/2303.05639v3
• Date: Mon, 23 Oct 2023 17:40:57 GMT
• Title: Self-Supervised One-Shot Learning for Automatic Segmentation of StyleGAN Images
• Authors: Ankit Manerikar and Avinash C. Kak
• Abstract summary: We propose a framework for the automatic one-shot segmentation of synthetic images generated by a StyleGAN. Our framework learns to segment synthetic images using a self-supervised contrastive clustering algorithm. We also show the results of using the proposed one-shot learner in implementing BagGAN, a framework for producing synthetic baggage X-ray scans for threat detection.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a framework for the automatic one-shot segmentation of synthetic images generated by a StyleGAN. Our framework is based on the observation that the multi-scale hidden features in the GAN generator hold useful semantic information that can be utilized for automatic on-the-fly segmentation of the generated images. Using these features, our framework learns to segment synthetic images using a self-supervised contrastive clustering algorithm that projects the hidden features into a compact space for per-pixel classification. This contrastive learner is based on using a novel data augmentation strategy and a pixel-wise swapped prediction loss that leads to faster learning of the feature vectors for one-shot segmentation. We have tested our implementation on five standard benchmarks to yield a segmentation performance that not only outperforms the semi-supervised baselines by an average wIoU margin of 1.02 % but also improves the inference speeds by a factor of 4.5. Finally, we also show the results of using the proposed one-shot learner in implementing BagGAN, a framework for producing annotated synthetic baggage X-ray scans for threat detection. This framework was trained and tested on the PIDRay baggage benchmark to yield a performance comparable to its baseline segmenter based on manual annotations.

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