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In this paper, we propose a privacy-preserving image-retrieval scheme using a codebook generated by using a plain-image dataset. Encryption-then-compression (EtC) images, which were proposed for EtC systems, have been used in conventional…

图像与视频处理 · 电气工程与系统科学 2021-09-07 Kenta Iida , Hitoshi Kiya

Forthcoming surveys such as the Large Synoptic Survey Telescope (LSST) and Euclid necessitate automatic and efficient identification methods of strong lensing systems. We present a strong lensing identification approach that utilizes a…

天体物理仪器与方法 · 物理学 2019-08-29 Camille Avestruz , Nan Li , Hanjue Zhu , Matthew Lightman , Thomas E. Collett , Wentao Luo

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 divided into blocks, and then every block is encrypted by using…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Rei Aso , Tatsuya Chuman , Hitoshi Kiya

In this paper, we propose an attack method to block scrambled face images, particularly Encryption-then-Compression (EtC) applied images by utilizing the existing powerful StyleGAN encoder and decoder for the first time. Instead of…

计算机视觉与模式识别 · 计算机科学 2022-09-19 AprilPyone MaungMaung , 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 transmit images through an untrusted channel provider, such as…

密码学与安全 · 计算机科学 2018-11-02 Tatsuya Chuman , Warit Sirichotedumrong , Hitoshi Kiya

Most object detection methods operate by applying a binary classifier to sub-windows of an image, followed by a non-maximum suppression step where detections on overlapping sub-windows are removed. Since the number of possible sub-windows…

计算机视觉与模式识别 · 计算机科学 2015-02-03 Davis E. King

Recently, a number of competitive methods have tackled unsupervised representation learning by maximising the mutual information between the representations produced from augmentations. The resulting representations are then invariant to…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Luke Nicholas Darlow , Amos Storkey

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 security of block scrambling-based encryption schemes, which…

密码学与安全 · 计算机科学 2018-12-26 Tatsuya Chuman , Hitoshi Kiya

Outsourced computation for neural networks allows users access to state of the art models without needing to invest in specialized hardware and know-how. The problem is that the users lose control over potentially privacy sensitive data.…

密码学与安全 · 计算机科学 2022-01-04 Robert Podschwadt , Daniel Takabi , Peizhao Hu

A privacy-preserving support vector machine (SVM) computing scheme is proposed in this paper. Cloud computing has been spreading in many fields. However, the cloud computing has some serious issues for end users, such as the unauthorized…

密码学与安全 · 计算机科学 2020-01-08 Takahiro Maekawa , Ayana Kawamura , Takayuki Nakachi , Hitoshi Kiya

Surveillance based on Computer Vision has become a major necessity in current era. Most of the surveillance systems operate on visible light imaging, but performance based on visible light imaging is limited due to some factors like…

计算机视觉与模式识别 · 计算机科学 2017-09-28 Yash Khandhediya , Karishma Sav , Vandit Gajjar

Medical imaging data contain sensitive patient information requiring strong privacy protection. Many analytical setups require data to be sent to a server for inference purposes. Homomorphic encryption (HE) provides a solution by allowing…

图像与视频处理 · 电气工程与系统科学 2025-06-23 Jonghun Kim , Gyeongdeok Jo , Sinyoung Ra , Hyunjin Park

This paper aims to propose a novel machine learning (ML) approach incorporating Homomorphic Encryption (HE) to address privacy limitations in Unmanned Aerial Vehicles (UAV)-based face detection. Due to challenges related to distance,…

密码学与安全 · 计算机科学 2025-07-15 Nguyen Van Duc , Bui Duc Manh , Quang-Trung Luu , Dinh Thai Hoang , Van-Linh Nguyen , Diep N. Nguyen

This paper describe the features extraction algorithm for electrocardiogram (ECG) signal using Huang Hilbert Transform and Wavelet Transform. ECG signal for an individual human being is different due to unique heart structure. The purpose…

计算机视觉与模式识别 · 计算机科学 2019-08-15 Neha Soorma , Jaikaran Singh , Mukesh Tiwari

With the increasing prevalence of cloud computing platforms, ensuring data privacy during the cloud-based image related services such as classification has become crucial. In this study, we propose a novel privacypreserving image…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Jun Liu , Jiantao Zhou , Jinyu Tian , Weiwei Sun

This paper proposes a new technique for automatic face recognition using integrated peaks of the Hough transformed significant blocks of the binary gradient image. In this approach firstly the gradient of an image is calculated and a…

计算机视觉与模式识别 · 计算机科学 2013-12-09 Arindam Kar , Debotosh Bhattacharjee , Dipak Kumar Basu , Mita Nasipuri , Mahantapas Kundu

Machine learning models are often provisioned as a cloud-based service where the clients send their data to the service provider to obtain the result. This setting is commonplace due to the high value of the models, but it requires the…

密码学与安全 · 计算机科学 2023-10-12 Jaewoo Park , Chenghao Quan , Hyungon Moon , Jongeun Lee

Preserving the privacy and security of big data in the context of cloud computing, while maintaining a certain level of efficiency of its processing remains to be a subject, open for improvement. One of the most popular applications…

密码学与安全 · 计算机科学 2022-02-02 Ş. S. Mağara , C. Yıldırım , F. Yaman , B. Dilekoğlu , F. R. Tutaş , E. Öztürk , K. Kaya , Ö. Taştan , E. Savaş

Recently cloud-based graph convolutional network (GCN) has demonstrated great success and potential in many privacy-sensitive applications such as personal healthcare and financial systems. Despite its high inference accuracy and…

密码学与安全 · 计算机科学 2022-10-27 Ran Ran , Nuo Xu , Wei Wang , Gang Quan , Jieming Yin , Wujie Wen

While homomorphic encryption (HE) provides strong privacy protection, its high computational cost has restricted its application to simple tasks. Recently, hyperdimensional computing (HDC) applied to HE has shown promising performance for…

密码学与安全 · 计算机科学 2025-11-04 Jaewoo Park , Chenghao Quan , Jongeun Lee