Protecting Semantic Segmentation Models by Using Block-wise Image Encryption with Secret Key from Unauthorized Access

• URL: http://arxiv.org/abs/2107.09362v1
• Date: Tue, 20 Jul 2021 09:31:15 GMT
• Title: Protecting Semantic Segmentation Models by Using Block-wise Image Encryption with Secret Key from Unauthorized Access
• Authors: Hiroki Ito, MaungMaung AprilPyone, Hitoshi Kiya
• Abstract summary: We propose to protect semantic segmentation models from unauthorized access by utilizing block-wise transformation with a secret key. Experiment results show that the proposed protection method allows rightful users with the correct key to access the model to full capacity and deteriorate the performance for unauthorized users.
• Score: 13.106063755117399
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Since production-level trained deep neural networks (DNNs) are of a great business value, protecting such DNN models against copyright infringement and unauthorized access is in a rising demand. However, conventional model protection methods focused only the image classification task, and these protection methods were never applied to semantic segmentation although it has an increasing number of applications. In this paper, we propose to protect semantic segmentation models from unauthorized access by utilizing block-wise transformation with a secret key for the first time. Protected models are trained by using transformed images. Experiment results show that the proposed protection method allows rightful users with the correct key to access the model to full capacity and deteriorate the performance for unauthorized users. However, protected models slightly drop the segmentation performance compared to non-protected models.

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