AI RESEARCH
CFE-PPAR: Compression-friendly encryption for privacy-preserving action recognition leveraging video transformers
arXiv CS.CV
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ArXi:2605.05692v1 Announce Type: new Privacy-preserving action recognition (PPAR) enables machines to understand human activities in videos without revealing sensitive visual content. Among the various strategies for PPAR, encryption-based methods achieve strong privacy protection while maintaining high recognition performance. However, these methods lead to a catastrophic decrease in recognition performance and visual quality when the encrypted videos are compressed. That is, the previous methods are not compression-friendly.