16 citations · 31 across the 12 of their papers we have counts for
13 papers
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…
Security Evaluation of Compressible and Learnable Image Encryption Against Jigsaw Puzzle Solver Attacks
Tatsuya Chuman, Nobutaka Ono, Hitoshi Kiya
Several learnable image encryption schemes have been developed for privacy-preserving image classification. This paper focuses on the security block-based image encryption methods…
A Privacy Preserving Method with a Random Orthogonal Matrix for ConvMixer Models
Rei Aso, Tatsuya Chuman, Hitoshi Kiya
In this paper, a privacy preserving image classification method is proposed under the use of ConvMixer models. To protect the visual information of test images, a test image is div…
A Jigsaw Puzzle Solver-based Attack on Block-wise Image Encryption for Privacy-preserving DNNs
Tatsuya Chuman, Hitoshi Kiya
Privacy-preserving deep neural networks (DNNs) have been proposed for protecting data privacy in the cloud server. Although several encryption schemes for visually protection have…
Security Evaluation of Compressible Image Encryption for Privacy-Preserving Image Classification against Ciphertext-only Attacks
Tatsuya Chuman, Hitoshi Kiya
The security of learnable image encryption schemes for image classification using deep neural networks against several attacks has been discussed. On the other hand, block scrambli…
Security Evaluation of Block-based Image Encryption for Vision Transformer against Jigsaw Puzzle Solver Attack
Tatsuya Chuman, Hitoshi Kiya
The aim of this paper is to evaluate the security of a block-based image encryption for the vision transformer against jigsaw puzzle solver attacks. The vision transformer, a model…
Block Scrambling Image Encryption Used in Combination with Data Augmentation for Privacy-Preserving DNNs
Tatsuya Chuman, Hitoshi Kiya
In this paper, we propose a novel learnable image encryption method for privacy-preserving deep neural networks (DNNs). The proposed method is carried out on the basis of block scr…
Grayscale-Based Image Encryption Considering Color Sub-sampling Operation for Encryption-then-Compression Systems
Warit Sirichotedumrong, Tatsuya Chuman, Hitoshi Kiya
A new grayscale-based block scrambling image encryption scheme is presented to enhance the security of Encryption-then-Compression (EtC) systems, which are used to securely transmi…
Encryption-then-Compression Systems using Grayscale-based Image Encryption for JPEG Images
Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi Kiya
A block scrambling-based encryption scheme is presented to enhance the security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely trans…
Compression Performance of Grayscale-based Image Encryption for Encryption-then-Compression Systems
Warit Sirichotedumrong, Tatsuya Chuman, Hitoshi Kiya
This paper considers a new grayscale-based image encryption for Encryption-then-Compression (EtC) systems with JPEG compression. Firstly, generation methods of grayscale-based imag…
Image Manipulation Specifications on Social Networking Services for Encryption-then-Compression Systems
Tatsuya Chuman, Kenta Iida, Warit Sirichotedumrong +1
Encryption-then-Compression (EtC) systems have been proposed to securely transmit images through an untrusted channel provider. In this study, EtC systems were applied to social me…
Security Evaluation for Block Scrambling-Based Image Encryption Including JPEG Distortion against Jigsaw Puzzle Solver Attacks
Tatsuya Chuman, Hitoshi Kiya
Encryption-then-Compression (EtC) systems have been considered for the user-controllable privacy protection of social media like Twitter. The aim of this paper is to evaluate the s…
Grayscale-based Block Scrambling Image Encryption for Social Networking Services
Warit Sirichotedumrong, Tatsuya Chuman, Shoko Imaizumi +1
This paper proposes a new block scrambling encryption scheme that enhances the security of encryption-then-compression (EtC) systems for JPEG images, which are used, for example, t…