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The recognition of materials and objects inside transparent containers using computer vision has a wide range of applications, ranging from industrial bottles filling to the automation of chemistry laboratory. One of the main challenges in…

Computer Vision and Pattern Recognition · Computer Science 2015-06-02 Sagi Eppel

This work describes a Bayesian framework for reconstructing the boundaries that represent targeted features in an image, as well as the regularity (i.e., roughness vs. smoothness) of these boundaries.This regularity often carries crucial…

Numerical Analysis · Mathematics 2024-01-26 Babak Maboudi Afkham , Nicolai André Brogaard Riis , Yiqiu Dong , Per Christian Hansen

This paper provides theoretical and computational developments in statistical shape analysis of shape graphs, and demonstrates them using analysis of complex data from retinal blood-vessel (RBV) networks. The shape graphs are represented by…

Methodology · Statistics 2022-11-29 Aditi Basu Bal , Xiaoyang Guo , Tom Needham , Anuj Srivastava

Diabetes is a globally prevalent disease that can cause visible microvascular complications such as diabetic retinopathy and macular edema in the human eye retina, the images of which are today used for manual disease screening. This…

Image and Video Processing · Electrical Eng. & Systems 2019-04-19 Jaakko Sahlsten , Joel Jaskari , Jyri Kivinen , Lauri Turunen , Esa Jaanio , Kustaa Hietala , Kimmo Kaski

Despite its high prevalence, anemia is often undetected due to the invasiveness and cost of screening and diagnostic tests. Though some non-invasive approaches have been developed, they are less accurate than invasive methods, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2020-06-03 Akinori Mitani , Yun Liu , Abigail Huang , Greg S. Corrado , Lily Peng , Dale R. Webster , Naama Hammel , Avinash V. Varadarajan

Retinal vessel segmentation methods based on standard overlap losses tend to miss thin peripheral vessels because these structures occupy very few pixels and have low contrast against the background. We propose HMS-VesselNet, a hierarchical…

Image and Video Processing · Electrical Eng. & Systems 2026-03-24 Amarnath R

High-dimensional data can be useful for causal inference by providing many confounders that may bolster the plausibility of the ignorability assumption. Propensity score methods are powerful tools for causal inference, are popular in health…

Methodology · Statistics 2017-10-10 Jacob Spertus , Sharon-Lise Normand

Purpose: To demonstrate that retinal microvasculature per se is a reliable biomarker for Diabetic Retinopathy (DR) and, by extension, cardiovascular diseases. Methods: Deep Learning Convolutional Neural Networks (CNN) applied to color…

Image and Video Processing · Electrical Eng. & Systems 2021-07-29 Anusua Trivedi , Jocelyn Desbiens , Ron Gross , Sunil Gupta , Rahul Dodhia , Juan Lavista Ferres

Our research focuses on the critical field of early diagnosis of disease by examining retinal blood vessels in fundus images. While automatic segmentation of retinal blood vessels holds promise for early detection, accurate analysis remains…

Image and Video Processing · Electrical Eng. & Systems 2024-05-14 Fatema Tuj Johora Faria , Mukaffi Bin Moin , Pronay Debnath , Asif Iftekher Fahim , Faisal Muhammad Shah

Vascular segmentation extracts blood vessels from images and serves as the basis for diagnosing various diseases, like ophthalmic diseases. Ophthalmologists often require high-resolution segmentation results for analysis, which leads to…

Image and Video Processing · Electrical Eng. & Systems 2022-07-29 Yan Hu , Zhongxi Qiu , Dan Zeng , Li Jiang , Chen Lin , Jiang Liu

Measures of vascular tortuosity--how curved and twisted a vessel is--are associated with a variety of vascular diseases. Consequently, measurements of vessel tortuosity that are accurate and comparable across modality, resolution, and size…

Medical Physics · Physics 2021-01-07 Alexander Brummer , David Hunt , Van Savage

The reliable segmentation of retinal vasculature can provide the means to diagnose and monitor the progression of a variety of diseases affecting the blood vessel network, including diabetes and hypertension. We leverage the power of…

Image and Video Processing · Electrical Eng. & Systems 2019-07-23 Ali Hatamizadeh , Hamid Hosseini , Zhengyuan Liu , Steven D. Schwartz , Demetri Terzopoulos

Diabetic retinopathy is an eye-related pathology creating abnormalities and causing visual impairment, proper treatment of which requires identifying irregularities. This research uses a hemorrhage detection method and compares…

Image and Video Processing · Electrical Eng. & Systems 2022-06-03 Tamoor Aziz , Chalie Charoenlarpnopparut , Srijidtra Mahapakulchai

Retinal imaging serves as a valuable tool for diagnosis of various diseases. However, reading retinal images is a difficult and time-consuming task even for experienced specialists. The fundamental step towards automated retinal image…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Liangzhi Li , Manisha Verma , Yuta Nakashima , Ryo Kawasaki , Hajime Nagahara

Graphical models or networks describe the statistical dependence among multiple variables and are widely used in biology (e.g., gene regulatory networks). Under appropriate assumptions, directed edges may represent causal relationships. A…

Methodology · Statistics 2023-11-29 Evan A Martin , Audrey Qiuyan Fu

Refractive error, one of the leading cause of visual impairment, can be corrected by simple interventions like prescribing eyeglasses. We trained a deep learning algorithm to predict refractive error from the fundus photographs from…

Computer Vision and Pattern Recognition · Computer Science 2020-06-03 Avinash V. Varadarajan , Ryan Poplin , Katy Blumer , Christof Angermueller , Joe Ledsam , Reena Chopra , Pearse A. Keane , Greg S. Corrado , Lily Peng , Dale R. Webster

The appearance and structure of blood vessels in retinal images have an important role in diagnosis of diseases. This paper proposes a method for automatic retinal vessel segmentation. In this work, a novel preprocessing based on local…

Computer Vision and Pattern Recognition · Computer Science 2013-12-31 Saeid Fazli , Sevin Samadi

Detecting retinal image analysis, particularly the geometrical features of branching points, plays an essential role in diagnosing eye diseases. However, existing methods used for this purpose often are coarse-level and lack fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Hao Wang , Wenhui Zhu , Jiayou Qin , Xin Li , Oana Dumitrascu , Xiwen Chen , Peijie Qiu , Abolfazl Razi

Structural changes in retinal blood vessels are critical biomarkers for the onset and progression of glaucoma and other ocular diseases. However, current vessel segmentation approaches largely rely on supervised learning and extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Cheng Huang , Weizheng Xie , Fan Gao , Yutong Liu , Ruoling Wu , Zeyu Han , Jingxi Qiu , Xiangxiang Wang , Zhenglin Yang , Hao Wang , Yongbin Yu

The Computer-Assisted Diagnosis systems could save workloads and give objective diagnostic to ophthalmologists. At first, feature extraction is a fundamental step. One of these retinal features is the fovea. The fovea is a small fossa on…

Medical Physics · Physics 2020-04-21 Meysam Tavakoli , Patrick Kelley , Mahdieh Nazar , Faraz Kalantari