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From The late 90th, "Skin Detection" becomes one of the major problems in image processing. If "Skin Detection" will be done in high accuracy, it can be used in many cases as face recognition, Human Tracking and etc. Until now so many…

Computer Vision and Pattern Recognition · Computer Science 2012-07-09 Shervan Fekri-Ershad , Mohammad Saberi , Farshad Tajeripour

Private Information Retrieval (PIR) schemes allow clients to retrieve files from a database without disclosing the requested file's identity to the server. In the pursuit of post-quantum security, most recent PIR schemes rely on hard…

Cryptography and Security · Computer Science 2025-07-28 Svenja Lage , Hannes Bartz

In this paper, we propose a novel content based-image retrieval scheme allowing the mixed use of encrypted and plain images for the first time. In the proposed scheme, images are encrypted by a block-scrambling method developed for…

Image and Video Processing · Electrical Eng. & Systems 2020-11-03 Kenta Iida , Hitoshi Kiya

With the growing importance of privacy regulations such as the General Data Protection Regulation, anonymizing visual data is becoming increasingly relevant across institutions. However, anonymization can negatively affect the performance…

Machine Learning · Computer Science 2026-02-24 Marvin Chen , Manuel Eberhardinger , Johannes Maucher

Recently, cloud storage and processing have been widely adopted. Mobile users in one family or one team may automatically backup their photos to the same shared cloud storage space. The powerful face detector trained and provided by a 3rd…

Computer Vision and Pattern Recognition · Computer Science 2017-08-10 Xin Jin , Shiming Ge , Chenggen Song

This chapter presents recent advances in content based image search and retrieval (CBIR) systems in remote sensing (RS) for fast and accurate information discovery from massive data archives. Initially, we analyze the limitations of the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Gencer Sumbul , Jian Kang , Begüm Demir

The increasing volume of medical images poses challenges for radiologists in retrieving relevant cases. Content-based image retrieval (CBIR) systems offer potential for efficient access to similar cases, yet lack standardized evaluation and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Farnaz Khun Jush , Steffen Vogler , Matthias Lenga

The query-by-image video retrieval (QBIVR) task has been attracting considerable research attention recently. However, most existing methods represent a video by either aggregating or projecting all its frames into a single datum point,…

Multimedia · Computer Science 2016-12-07 Ruicong Xu , Yang Yang , Yadan Luo , Fumin Shen , Zi Huang , Heng Tao Shen

Private information retrieval (PIR) is a cryptographic primitive that allows a client to securely query one or multiple servers without revealing their specific interests. In spite of their strong security guarantees, current PIR…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-14 Mpoki Mwaisela , Peterson Yuhala , Pascal Felber , Valerio Schiavoni

Due to the advancement in computer communication and storage technologies, large amount of image data is available on World Wide Web (WWW). In order to locate a particular set of images the available search engines may be used with the help…

Information Retrieval · Computer Science 2024-09-05 R Rajkumar , M V Sudhamani

Performance evaluation for Content-Based Image Retrieval (CBIR) remains a crucial but unsolved problem today especially in the medical domain. Various evaluation metrics have been discussed in the literature to solve this problem. Most of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Xiaoyang Wei , Camille Kurtz , Florence Cloppet

Content-Based Image Retrieval (CBIR) have shown promising results in the field of medical diagnosis, which aims to provide support to medical professionals (doctor or pathologist). However, the ultimate decision regarding the diagnosis is…

Information Retrieval · Computer Science 2025-07-03 Humberto Giuri , Renato A. Krohling

The advent of large scale multimedia databases has led to great challenges in content-based image retrieval (CBIR). Even though CBIR is considered an emerging field of research, however it constitutes a strong background for new…

Computer Vision and Pattern Recognition · Computer Science 2010-12-24 Nadia Baaziz , Omar Abahmane , Rokia Missaoui

Modern computer vision services often require users to share raw feature descriptors with an untrusted server. This presents an inherent privacy risk, as raw descriptors may be used to recover the source images from which they were…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Francesco Pittaluga , Bingbing Zhuang

A novel efficient method for content-based image retrieval (CBIR) is developed in this paper using both texture and color features. Our motivation is to represent and characterize an input image by a set of local descriptors extracted at…

Computer Vision and Pattern Recognition · Computer Science 2017-03-06 Minh-Tan Pham , Grégoire Mercier , Lionel Bombrun , Julien Michel

We consider the problem of multi-access cache-aided multi-user Private Information Retrieval (MuPIR). In this problem, several files are replicated across multiple servers. There are $K$ users and $C$ cache nodes. Each user can access $L$…

Information Theory · Computer Science 2022-02-11 Kanishak Vaidya , B Sundar Rajan

Private Information Retrieval (PIR) is a fundamental cryptographic primitive that enables users to retrieve data from a database without revealing which item is being accessed, thereby preserving query privacy. However, PIR protocols also…

Cryptography and Security · Computer Science 2025-09-18 Lin Zhu , Lingwei Kong , Xin Ning , Xiaoyang Qu , Jianzong Wang

Facial recognition models are increasingly employed by commercial enterprises, government agencies, and cloud service providers for identity verification, consumer services, and surveillance. These models are often trained using vast…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Chen Chen , Mengyuan Sun , Xueluan Gong , Yanjiao Chen , Qian Wang

Medical images play a crucial role in modern healthcare by providing vital information for diagnosis, treatment planning, and disease monitoring. Fields such as radiology and pathology rely heavily on accurate image interpretation, with…

Image and Video Processing · Electrical Eng. & Systems 2024-08-06 H. R. Tizhoosh

The performance of CBIR algorithms is usually measured on an isolated workstation. In a real-world environment the algorithms would only constitute a minor component among the many interacting components. The Internet dramati-cally changes…

Information Retrieval · Computer Science 2015-06-25 Neil J. Gunther , Giordano B. Beretta