中文
相关论文

相关论文: Segmentation-free Direct Iris Localization Network…

200 篇论文

High-resolution (HR) image harmonization is of great significance in real-world applications such as image synthesis and image editing. However, due to the high memory costs, existing dense pixel-to-pixel harmonization methods are mainly…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Jianqi Chen , Yilan Zhang , Zhengxia Zou , Keyan Chen , Zhenwei Shi

We introduce Patch Refinement a two-stage model for accurate 3D object detection and localization from point cloud data. Patch Refinement is composed of two independently trained Voxelnet-based networks, a Region Proposal Network (RPN) and…

计算机视觉与模式识别 · 计算机科学 2019-10-10 Johannes Lehner , Andreas Mitterecker , Thomas Adler , Markus Hofmarcher , Bernhard Nessler , Sepp Hochreiter

Iris recognition is a mature biometric technology offering remarkable precision and speed, and allowing for large-scale deployments to populations exceeding a billion enrolled users (e.g., AADHAAR in India). However, in forensic…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Mahsa Mitcheff , Adam Czajka

Coarse-to-fine models and cascade segmentation architectures are widely adopted to solve the problem of large scale variations in medical image segmentation. However, those methods have two primary limitations: the first-stage segmentation…

计算机视觉与模式识别 · 计算机科学 2021-02-12 Jiahao Xie , Sheng Zhang , Jianwei Lu , Ye Luo

Current research in iris recognition is moving towards enabling more relaxed acquisition conditions. This has effects on the quality of acquired images, with low resolution being a predominant issue. Here, we evaluate a super-resolution…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Fernando Alonso-Fernandez , Reuben A. Farrugia , Josef Bigun

Modern deep learning techniques can be employed to generate effective feature extractors for the task of iris recognition. The question arises: should we train such structures from scratch on a relatively large iris image dataset, or it is…

计算机视觉与模式识别 · 计算机科学 2020-02-21 Aidan Boyd , Adam Czajka , Kevin Bowyer

Detection of circular objects in digital images is an important problem in several vision applications. Circle detection using randomized sampling has been developed in recent years to reduce the computational intensity. Randomized…

计算机视觉与模式识别 · 计算机科学 2015-11-03 Hanqing Zhang , Krister Wiklund , Magnus Andersson

Localization of salient facial landmark points, such as eye corners or the tip of the nose, is still considered a challenging computer vision problem despite recent efforts. This is especially evident in unconstrained environments, i.e., in…

计算机视觉与模式识别 · 计算机科学 2015-01-21 Nenad Markuš , Miroslav Frljak , Igor S. Pandžić , Jörgen Ahlberg , Robert Forchheimer

The need for fine-grained perception in autonomous driving systems has resulted in recently increased research on online semantic segmentation of single-scan LiDAR. Despite the emerging datasets and technological advancements, it remains…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Yang Zhang , Zixiang Zhou , Philip David , Xiangyu Yue , Zerong Xi , Boqing Gong , Hassan Foroosh

The mainstream CNN-based remote sensing (RS) image semantic segmentation approaches typically rely on massive labeled training data. Such a paradigm struggles with the problem of RS multi-view scene segmentation with limited labeled views…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Zipeng Qi , Hao Chen , Chenyang Liu , Zhenwei Shi , Zhengxia Zou

Current reconfigurable intelligent surface (RIS)-aided near-field (NF) localization methods assume the RIS position is known a priori, and it has limited their practical applicability. This paper applies a hybrid RIS (HRIS) at an unknown…

信号处理 · 电气工程与系统科学 2026-03-19 Hua Chen , Linke Yu , Tuo Wu , Maged Elkashlan , Naofal Al-Dhahir , Merouane Debbah , K. C. Ho

The automatic detection and localization of anatomical features in retinal imaging data are relevant for many aspects. In this work, we follow a data-centric approach to optimize classifier training for optic nerve head detection and…

This paper proposes a deep feature extractor for iris recognition at arbitrary resolutions. Resolution degradation reduces the recognition performance of deep learning models trained by high-resolution images. Using various-resolution…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Yuho Shoji , Yuka Ogino , Takahiro Toizumi , Atsushi Ito

Periocular recognition has gained attention recently due to demands of increased robustness of face or iris in less controlled scenarios. We present a new system for eye detection based on complex symmetry filters, which has the advantage…

计算机视觉与模式识别 · 计算机科学 2022-11-11 Fernando Alonso-Fernandez , Josef Bigun

This paper presents a study devoted to recognizing horses by means of their iris and periocular features using deep convolutional neural networks (DCNNs). Identification of race horses is crucial for animal identity confirmation prior to…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Mateusz Trokielewicz , Mateusz Szadkowski

Objective - This study presents a biometric identification method based on topological invariants from 2D iris images, representing iris texture via formally defined digital homology and evaluating classification performance. Methods - Each…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Ahmet Öztel , İsmet Karaca

The current developments in the field of machine vision have opened new vistas towards deploying multimodal biometric recognition systems in various real-world applications. These systems have the ability to deal with the limitations of…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Bilal Hassan , Ramsha Ahmed , Taimur Hassan , Naoufel Werghi

Custom and natural lighting conditions can be emulated in images of the scene during post-editing. Extraordinary capabilities of the deep learning framework can be utilized for such purpose. Deep image relighting allows automatic photo…

计算机视觉与模式识别 · 计算机科学 2021-06-17 Sourya Dipta Das , Nisarg A. Shah , Saikat Dutta , Himanshu Kumar

With the introduction of spectral-domain optical coherence tomography (OCT), resulting in a significant increase in acquisition speed, the fast and accurate segmentation of 3-D OCT scans has become evermore important. This paper presents a…

计算机视觉与模式识别 · 计算机科学 2014-04-01 Fabian Rathke , Stefan Schmidt , Christoph Schnörr

Identifying potential objects is critical for object recognition and analysis across various computer vision applications. Existing methods typically localize potential objects by relying on exemplar images, predefined categories, or…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Qihong Tang , Changhan Liu , Shaofeng Zhang , Wenbin Li , Qi Fan , Yang Gao