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Iris recognition is widely recognized as one of the most accurate biometric modalities. However, its growing deployment in real-world applications raises significant concerns regarding its vulnerability to Presentation Attacks (PAs).…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Raghavendra Ramachandra , Sushma Venkatesh

In this paper, we propose a method to apply the popular cascade classifier into face recognition to improve the computational efficiency while keeping high recognition rate. In large scale face recognition systems, because the probability…

Computer Vision and Pattern Recognition · Computer Science 2013-03-01 Dong Yi , Zhen Lei , Yang Hu , Stan Z. Li

Existing multi-focus image fusion (MFIF) methods often fail to preserve the uncertain transition region and detect small focus areas within large defocused regions accurately. To address this issue, this study proposes a new…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Xilai Li , Xiaosong Li , Haishu Tan , Jinyang Li

Most existing person re-identification algorithms either extract robust visual features or learn discriminative metrics for person images. However, the underlying manifold which those images reside on is rarely investigated. That raises a…

Computer Vision and Pattern Recognition · Computer Science 2017-03-27 Song Bai , Xiang Bai , Qi Tian

Iris recognition has been an active research area during last few decades, because of its wide applications in security, from airports to homeland security border control. Different features and algorithms have been proposed for iris…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Shervin Minaee , Amirali Abdolrashidi

Recently, iris recognition is regaining prominence in immersive applications such as extended reality as a means of seamless user identification. This application scenario introduces unique challenges compared to traditional iris…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Yuxi Mi , Qiuyang Yuan , Zhizhou Zhong , Xuan Zhao , Jiaogen Zhou , Fubao Zhu , Jihong Guan , Shuigeng Zhou

Iris recognition systems transform an iris image into a feature vector. The seminal pipeline segments an image into iris and non-iris pixels, normalizes this region into a fixed-dimension rectangle, and extracts features which are stored…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Sohaib Ahmad , Christopher Geiger , Benjamin Fuller

The growing scope, scale, and number of biometric deployments around the world emphasise the need for research into technologies facilitating efficient and reliable biometric identification queries. This work presents a method of indexing…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Pawel Drozdowski , Fabian Stockhardt , Christian Rathgeb , Christoph Busch

Person Re-identification (Person ReID) is an important topic in intelligent surveillance and computer vision. It aims to accurately measure visual similarities between person images for determining whether two images correspond to the same…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Xinglu Wang

Synthetic face recognition (SFR) aims to generate synthetic face datasets that mimic the distribution of real face data, which allows for training face recognition models in a privacy-preserving manner. Despite the remarkable potential of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Shen Li , Jianqing Xu , Jiaying Wu , Miao Xiong , Ailin Deng , Jiazhen Ji , Yuge Huang , Wenjie Feng , Shouhong Ding , Bryan Hooi

Multimodal sensor fusion methods for 3D object detection have been revolutionizing the autonomous driving research field. Nevertheless, most of these methods heavily rely on dense LiDAR data and accurately calibrated sensors which is often…

Robotics · Computer Science 2023-06-14 Maciej K. Wozniak , Viktor Karefjards , Marko Thiel , Patric Jensfelt

This study considers a base station equipped with sensing and communication capabilities, which serves a ground user and scans a portion of the sky via a passive reconfigurable intelligent surface. To achieve more favorable system…

Signal Processing · Electrical Eng. & Systems 2026-01-16 Georgios Mylonopoulos , Luca Venturino , Emanuele Grossi , Stefano Buzzi , Ciro D'Elia

A critical step in the digital surface models(DSM) generation is feature matching. Off-track (or multi-date) satellite stereo images, in particular, can challenge the performance of feature matching due to spectral distortions between…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Shuang Song , Luca Morelli , Xinyi Wu , Rongjun Qin , Hessah Albanwan , Fabio Remondino

Image quality evaluation accurately is vital in developing image stitching algorithms as it directly reflects the algorithms progress. However, commonly used objective indicators always produce inconsistent and even conflicting results with…

Image and Video Processing · Electrical Eng. & Systems 2024-04-23 Xinrui Zhang , Shengwei Guo , Guobing Sun

Combining LiDAR and camera data has shown potential in enhancing short-distance object detection in autonomous driving systems. Yet, the fusion encounters difficulties with extended distance detection due to the contrast between LiDAR's…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Tanmoy Dam , Sanjay Bhargav Dharavath , Sameer Alam , Nimrod Lilith , Supriyo Chakraborty , Mir Feroskhan

Image Matching is a core component of all best-performing algorithms and pipelines in 3D vision. Yet despite matching being fundamentally a 3D problem, intrinsically linked to camera pose and scene geometry, it is typically treated as a 2D…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Vincent Leroy , Yohann Cabon , Jérôme Revaud

Post-mortem iris recognition is an emerging application of iris-based human identification in a forensic setup, able to correctly identify deceased subjects even three weeks post-mortem. This technique thus is considered as an important…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Rasel Ahmed Bhuiyan , Adam Czajka

Ear biometric is considered as one of the most reliable and invariant biometrics characteristics in line with iris and fingerprint characteristics. In many cases, ear biometrics can be compared with face biometrics regarding many…

Computer Vision and Pattern Recognition · Computer Science 2010-02-03 Dakshina Ranjan Kisku , Hunny Mehrotra , Phalguni Gupta , Jamuna Kanta Sing

This chapter provides insight on how iris recognition, one of the leading biometric identification technologies in the world, can be impacted by pathologies and illnesses present in the eye, what are the possible repercussions of this…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz

Iris recognition is used in many applications around the world, with enrollment sizes as large as over one billion persons in India's Aadhaar program. Large enrollment sizes can require special optimizations in order to achieve fast…

Computer Vision and Pattern Recognition · Computer Science 2018-04-20 Andrey Kuehlkamp , Kevin Bowyer