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Related papers: Learning-Free Iris Segmentation Revisited: A First…

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Biometric methods based on iris images are believed to allow very high accuracy, and there has been an explosion of interest in iris biometrics in recent years. In this paper, we use the Scale Invariant Feature Transformation (SIFT) for…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Fernando Alonso-Fernandez , Pedro Tome-Gonzalez , Virginia Ruiz-Albacete , Javier Ortega-Garcia

Fluorescence lifetime imaging microscopy (FLIM) is a powerful quantitative technique that provides metabolic and molecular contrast, offering strong translational potential for label-free, real-time diagnostics. However, its clinical…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Paloma Casteleiro Costa , Parnian Ghapandar Kashani , Xuhui Liu , Alexander Chen , Ary Portes , Julien Bec , Laura Marcu , Aydogan Ozcan

Accurate and reliable brain tumor segmentation is a critical component in cancer diagnosis, treatment planning, and treatment outcome evaluation. Build upon successful deep learning techniques, a novel brain tumor segmentation method is…

Computer Vision and Pattern Recognition · Computer Science 2017-11-13 Xiaomei Zhao , Yihong Wu , Guidong Song , Zhenye Li , Yazhuo Zhang , Yong Fan

Referring Image Segmentation (RIS) is an advanced vision-language task that involves identifying and segmenting objects within an image as described by free-form text descriptions. While previous studies focused on aligning visual and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Minhyun Lee , Seungho Lee , Song Park , Dongyoon Han , Byeongho Heo , Hyunjung Shim

Recently deep residual learning with residual units for training very deep neural networks advanced the state-of-the-art performance on 2D image recognition tasks, e.g., object detection and segmentation. However, how to fully leverage…

Computer Vision and Pattern Recognition · Computer Science 2016-08-23 Hao Chen , Qi Dou , Lequan Yu , Pheng-Ann Heng

In the last few years, face morphing has been shown to be a complex challenge for Face Recognition Systems (FRS). Thus, the evaluation of other biometric modalities such as fingerprint, iris, and others must be explored and evaluated to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Juan E. Tapia , Sebastian Gonzalez , Daniel Benalcazar , Christoph Busch

3D scene understanding is a critical yet challenging task in autonomous driving due to the irregularity and sparsity of LiDAR data, as well as the computational demands of processing large-scale point clouds. Recent methods leverage…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Bin Yang , Alexandru Paul Condurache

Iris segmentation and localization in non-cooperative environment is challenging due to illumination variations, long distances, moving subjects and limited user cooperation, etc. Traditional methods often suffer from poor performance when…

Computer Vision and Pattern Recognition · Computer Science 2019-06-20 Caiyong Wang , Yuhao Zhu , Yunfan Liu , Ran He , Zhenan Sun

The task of automatically segmenting 3-D surfaces representing boundaries of objects is important for quantitative analysis of volumetric images, and plays a vital role in biomedical image analysis. Recently, graph-based methods with a…

Computer Vision and Pattern Recognition · Computer Science 2018-01-10 Abhay Shah , Michael Abramoff , Xiaodong Wu

This paper presents a novel training-free framework for open-vocabulary image segmentation and object recognition (OVSR), which leverages EfficientNetB0, a convolutional neural network, for unsupervised segmentation and CLIP, a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Ying Dai , Wei Yu Chen

Despite the rise of deep learning in numerous areas of computer vision and image processing, iris recognition has not benefited considerably from these trends so far. Most of the existing research on deep iris recognition is focused on new…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Juš Lozej , Dejan Štepec , Vitomir Štruc , Peter Peer

This paper proposes the first known to us iris recognition methodology designed specifically for post-mortem samples. We propose to use deep learning-based iris segmentation models to extract highly irregular iris texture areas in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-09 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz

A large portion of iris images captured in real world scenarios are poor quality due to the uncontrolled environment and the non-cooperative subject. To ensure that the recognition algorithm is not affected by low-quality images,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Leyuan Wang , Kunbo Zhang , Min Ren , Yunlong Wang , Zhenan Sun

Simultaneous imaging of fluorescence-labeled and label-free phase objects in the same sample provides distinct and complementary information. Most multimodal fluorescence-phase imaging operates in transmission mode, capturing fluorescence…

Optics · Physics 2024-08-20 Renzhi He , Yucheng Li , Junjie Chen , Yi Xue

Federated learning (FL) has emerged as an effective approach for training neural network models without requiring the sharing of participants' raw data, thereby addressing data privacy concerns. In this paper, we propose a reconfigurable…

Information Theory · Computer Science 2025-07-02 Mengru Wu , Yu Gao , Weidang Lu , Huimei Han , Lei Sun , Wanli Ni

We present FourierMask, which employs Fourier series combined with implicit neural representations to generate instance segmentation masks. We apply a Fourier mapping (FM) to the coordinate locations and utilize the mapped features as…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Hamd ul Moqeet Riaz , Nuri Benbarka , Timon Hoefer , Andreas Zell

A new approach in iris recognition based on Circular Fuzzy Iris Segmentation (CFIS) and Gabor Analytic Iris Texture Binary Encoder (GAITBE) is proposed and tested here. CFIS procedure is designed to guarantee that similar iris segments will…

Computer Vision and Pattern Recognition · Computer Science 2011-07-15 Nicolaie Popescu-Bodorin

Recently, groundbreaking results have been presented on open-vocabulary semantic image segmentation. Such methods segment each pixel in an image into arbitrary categories provided at run-time in the form of text prompts, as opposed to a…

Robotics · Computer Science 2023-03-21 Kenneth Blomqvist , Francesco Milano , Jen Jen Chung , Lionel Ott , Roland Siegwart

This paper presents a method for segmenting iris images obtained from the deceased subjects, by training a deep convolutional neural network (DCNN) designed for the purpose of semantic segmentation. Post-mortem iris recognition has recently…

Computer Vision and Pattern Recognition · Computer Science 2018-07-12 Mateusz Trokielewicz , Adam Czajka

Advances in fluorescence microscopy enable acquisition of 3D image volumes with better image quality and deeper penetration into tissue. Segmentation is a required step to characterize and analyze biological structures in the images and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Chichen Fu , Soonam Lee , David Joon Ho , Shuo Han , Paul Salama , Kenneth W. Dunn , Edward J. Delp