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Two critical steps in fingerprint recognition are binarization and thinning of the image. The need for real time processing motivates us to select local adaptive thresholding approach for the binarization step. We introduce a new hardware…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Farshad Kheiri , Shadrokh Samavi , Nader Karimi

With local differential privacy (LDP), users can privatize their data and thus guarantee privacy properties before transmitting it to the server (a.k.a. the aggregator). One primary objective of LDP is frequency (or histogram) estimation,…

Cryptography and Security · Computer Science 2021-09-16 Héber H. Arcolezi , Jean-François Couchot , Bechara Al Bouna , Xiaokui Xiao

The emergence and evolution of Local Differential Privacy (LDP) and its various adaptations play a pivotal role in tackling privacy issues related to the vast amounts of data generated by intelligent devices, which are crucial for…

Cryptography and Security · Computer Science 2024-01-26 Likun Qin , Tianshuo Qiu

This paper presents a novel quadratic projection based feature extraction framework, where a set of quadratic matrices is learned to distinguish each class from all other classes. We formulate quadratic matrix learning (QML) as a standard…

Computer Vision and Pattern Recognition · Computer Science 2016-03-28 Yan Yan , Hanzi Wang , Si Chen , Xiaochun Cao , David Zhang

Recently, the Mamba architecture based on state space models has demonstrated remarkable performance in a series of natural language processing tasks and has been rapidly applied to remote sensing change detection (CD) tasks. However, most…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Haotian Zhang , Keyan Chen , Chenyang Liu , Hao Chen , Zhengxia Zou , Zhenwei Shi

Soft biometric attributes such as gender, ethnicity or age may provide useful information for biometrics and forensics applications. Researchers used, e.g., face, gait, iris, and hand, etc. to classify such attributes. Even though hand has…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Wojciech Michal Matkowski , Adams Wai Kin Kong

Many modern simultaneous localization and mapping (SLAM) techniques rely on sparse landmark-based maps due to their real-time performance. However, these techniques frequently assert that these landmarks are fixed in position over time,…

Robotics · Computer Science 2020-08-04 Samuel Bateman , Kyle Harlow , Christoffer Heckman

Due to the advantages such as high security, high privacy, and liveness recognition, vein recognition has been received more and more attention in past years. Recently, deep learning models, e.g., Mamba has shown robust feature…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Huafeng Qin , Yuming Fu , Jing Chen , Mounim A. El-Yacoubi , Xinbo Gao , Feng Xi

Identification of minimum number of local regions of a handwritten character image, containing well-defined discriminating features which are sufficient for a minimal but complete description of the character is a challenging task. A new…

Computer Vision and Pattern Recognition · Computer Science 2016-05-03 Ritesh Sarkhel , Amit K Saha , Nibaran Das

Steganography methods in general terms tend to embed more and more secret bits in the cover images. Most of these methods are designed to embed secret information in such a way that the change in the visual quality of the resulting stego…

Multimedia · Computer Science 2021-01-19 Soumendu Chakraborty , Anand Singh Jalal

In recent years, Local Differential Privacy (LDP), a robust privacy-preserving methodology, has gained widespread adoption in real-world applications. With LDP, users can perturb their data on their devices before sending it out for…

Machine Learning · Computer Science 2023-08-02 Héber H. Arcolezi , Karima Makhlouf , Catuscia Palamidessi

Latent fingerprint matching is a daunting task, primarily due to the poor quality of latent fingerprints. In this study, we propose a deep-learning based dense minutia descriptor (DMD) for latent fingerprint matching. A DMD is obtained by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Zhiyu Pan , Yongjie Duan , Xiongjun Guan , Jianjiang Feng , Jie Zhou

We propose a learning method with feature selection for Locality-Sensitive Hashing. Locality-Sensitive Hashing converts feature vectors into bit arrays. These bit arrays can be used to perform similarity searches and personal…

Machine Learning · Computer Science 2012-10-12 Makiko Konoshima , Yui Noma

Accuracy, descriptor size, and the time required for extraction and matching are all important factors when selecting local image descriptors. To optimize over all these requirements, this paper presents a CUDA port for the recent Learned…

Computer Vision and Pattern Recognition · Computer Science 2016-09-15 Christopher Parker , Matthew Daiter , Kareem Omar , Gil Levi , Tal Hassner

A supervised machine learning algorithm, called locally adaptive discriminant analysis (LADA), has been developed to locate boundaries between identifiable image features that have varying intensities. LADA is an adaptation of image…

Image representation and classification are two fundamental tasks towards multimedia content retrieval and understanding. The idea that shape and texture information (e.g. edge or orientation) are the key features for visual representation…

Computer Vision and Pattern Recognition · Computer Science 2015-08-04 Sheng Guo , Weilin Huang , Yu Qiao

We investigate how to optimally design local differential privacy (LDP) mechanisms that reduce data unfairness and thereby improve fairness in downstream classification. We first derive a closed-form optimal mechanism for binary sensitive…

Machine Learning · Computer Science 2026-02-02 Hrad Ghoukasian , Shahab Asoodeh

Robust data association is necessary for virtually every SLAM system and finding corresponding points is typically a preprocessing step for scan alignment algorithms. Traditionally, handcrafted feature descriptors were used for these…

Computer Vision and Pattern Recognition · Computer Science 2018-09-21 Ayush Dewan , Tim Caselitz , Wolfram Burgard

A major challenge with palm vein images is that slight movements of the fingers and thumb, or variations in hand posture, can stretch the skin in different areas and alter the vein patterns. This can result in an infinite number of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Kaveen Perera , Fouad Khelifi , Ammar Belatreche

In this paper, a new method for decoding Low Density Parity Check (LDPC) codes, based on Multi-Layer Perceptron (MLP) neural networks is proposed. Due to the fact that in neural networks all procedures are processed in parallel, this method…

Information Theory · Computer Science 2014-11-14 Alireza Karami , Mahmoud Ahmadian Attari