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cs.CV2026
CFE-PPAR: Compression-friendly encryption for privacy-preserving action recognition leveraging video transformers
Haiwei Lin, Shoko Imaizumi, Hitoshi Kiya
Privacy-preserving action recognition (PPAR) enables machines to understand human activities in videos without revealing sensitive visual content. Among the various strategies for…
cs.CV2026
Privacy-Preserving Clothing Classification using Vision Transformer for Thermal Comfort Estimation
Tatsuya Chuman, Yousuke Udagawa, Hitoshi Kiya
A privacy-preserving clothing classification scheme is presented to enable secure occupant-centric control (OCC) systems. Although the utilization of camera images for HVAC control…
cs.CV2026
Privacy-Preserving Semantic Segmentation without Key Management
Mare Hirose, Shoko Imaizumi, Hitoshi Kiya
This paper proposes a novel privacy-preserving semantic segmentation method that can use independent keys for each client and image. In the proposed method, the model creator and e…