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In this paper, we seek a new method in designing an iris recognition system. In this method, first the Haar wavelet features are extracted from iris images. The advantage of using these features is the high-speed extraction, as well as…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Farahnaz Hosseini , Hossein Ebrahimpour , Samaneh Askari

Driving support systems, such as car navigation systems are becoming common and they support driver in several aspects. Non-intrusive method of detecting Fatigue and drowsiness based on eye-blink count and eye directed instruction…

Computer Vision and Pattern Recognition · Computer Science 2012-05-24 Vijayalaxmi , P. Sudhakara Rao , S. Sreehari

In this paper, we develop a robust efficient visual SLAM system that utilizes heterogeneous point and line features. By leveraging ORB-SLAM [1], the proposed system consists of stereo matching, frame tracking, local mapping, loop detection,…

Computer Vision and Pattern Recognition · Computer Science 2017-11-27 Xingxing Zuo , Xiaojia Xie , Yong Liu , Guoquan Huang

We identify two major limitations in the existing studies on retinal vessel segmentation: (1) Most existing works are restricted to one modality, i.e., the Color Fundus (CF). However, multi-modality retinal images are used every day in the…

Image and Video Processing · Electrical Eng. & Systems 2026-01-01 Bo Wen , Anna Heinke , Akshay Agnihotri , Dirk-Uwe Bartsch , William Freeman , Truong Nguyen , Cheolhong An

The acquisition of high-resolution retinal fundus images with a large field of view (FOV) is challenging due to technological, physiological and economic reasons. This paper proposes a fully automatic framework to reconstruct retinal images…

Computer Vision and Pattern Recognition · Computer Science 2016-02-11 Thomas Köhler , Axel Heinrich , Andreas Maier , Joachim Hornegger , Ralf P. Tornow

Iris serves as one of the best biometric modality owing to its complex, unique and stable structure. However, it can still be spoofed using fabricated eyeballs and contact lens. Accurate identification of contact lens is must for reliable…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Avantika Singh , Vishesh Mistry , Dhananjay Yadav , Aditya Nigam

Under the sea, visible spectrum cameras have limited sensing capacity, being able to detect objects only in clear water, but in a constrained range. Considering any sea water condition, sonars are more suitable to support autonomous…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Gustavo Neves , Rômulo Cerqueira , Jan Albiez , Luciano Oliveira

Segmenting of clinically important retinal blood vessels into arteries and veins is a prerequisite for retinal vessel analysis. Such analysis can provide potential insights and bio-markers for identifying and diagnosing various retinal eye…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Sharan SK , Subin Sahayam , Umarani Jayaraman , Lakshmi Priya A

In the beginning stage, face verification is done using easy method of geometric algorithm models, but the verification route has now developed into a scientific progress of complicated geometric representation and matching process. In…

Computer Vision and Pattern Recognition · Computer Science 2014-02-03 V. Karthikeyan , Manjupriya , C. K. Chithra , M. Divya

Biometric systems represent valid solutions in tasks like user authentication and verification, since they are able to analyze physical and behavioural features with high precision. However, especially when physical biometrics are used, as…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Francesco Zola , Jose Alvaro Fernandez-Carrasco , Jan Lukas Bruse , Mikel Galar , Zeno Geradts

High-resolution (HR) image perception remains a key challenge in multimodal large language models (MLLMs). To overcome the limitations of existing methods, this paper shifts away from prior dedicated heuristic approaches and revisits the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Wenbin Wang , Yongcheng Jing , Liang Ding , Yingjie Wang , Li Shen , Yong Luo , Bo Du , Dacheng Tao

In the conventional approach to lens imaging, rays are used to map object points to image points. However, many students have a need to think of the image as a whole. To answer this need, lens imaging is reinterpreted as a superposition of…

Physics Education · Physics 2016-01-20 Sascha Grusche

In this paper, we present our deep learning-based human detection system that uses optical (RGB) and long-wave infrared (LWIR) cameras to detect, track, localize, and re-identify humans from UAVs flying at high altitude. In each spectrum, a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Timo Hinzmann , Tobias Stegemann , Cesar Cadena , Roland Siegwart

We propose a new deep learning approach for automatic detection and segmentation of fluid within retinal OCT images. The proposed framework utilizes both ResNet and Encoder-Decoder neural network architectures. When training the network, we…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Dustin Morley , Hassan Foroosh , Saad Shaikh , Ulas Bagci

This paper proposes a new technique for automatic face recognition using integrated peaks of the Hough transformed significant blocks of the binary gradient image. In this approach firstly the gradient of an image is calculated and a…

Computer Vision and Pattern Recognition · Computer Science 2013-12-09 Arindam Kar , Debotosh Bhattacharjee , Dipak Kumar Basu , Mita Nasipuri , Mahantapas Kundu

Background: Artificial intelligence (AI) may demonstrate racial bias when skin or choroidal pigmentation is present in medical images. Recent studies have shown that convolutional neural networks (CNNs) can predict race from images that…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Aaron S. Coyner , Praveer Singh , James M. Brown , Susan Ostmo , R. V. Paul Chan , Michael F. Chiang , Jayashree Kalpathy-Cramer , J. Peter Campbell

We introduce a new table detection and structure recognition approach named RobusTabNet to detect the boundaries of tables and reconstruct the cellular structure of each table from heterogeneous document images. For table detection, we…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Chixiang Ma , Weihong Lin , Lei Sun , Qiang Huo

The main aim of this paper is to propose a color texture classification approach which uses color sensor information and texture features jointly. High accuracy, low noise sensitivity and low computational complexity are specified aims for…

Computer Vision and Pattern Recognition · Computer Science 2019-06-27 Shervan Fekri-Ershad , Farshad Tajeripour

Retinal surgery is a complex activity that can be challenging for a surgeon to perform effectively and safely. Image guided robot-assisted surgery is one of the promising solutions that bring significant surgical enhancement in treatment…

Augmented reality display performance depends strongly on features of the human visual system. This is especially true for retinal scan glasses, which use laser beam scanning and transparent holographic optical combiners. Human-centered…

Optics · Physics 2024-12-03 Maximilian Rutz , Pia Neuberger , Simon Pick , Torsten Straßer
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