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Objects in aerial images usually have arbitrary orientations and are densely located over the ground, making them extremely challenge to be detected. Many recently developed methods attempt to solve these issues by estimating an extra…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Ran Qin , Qingjie Liu , Guangshuai Gao , Di Huang , Yunhong Wang

We propose an encoder-decoder framework for the segmentation of blood vessels in retinal images that relies on the extraction of large-scale patches at multiple image-scales during training. Experiments on three fundus image datasets…

Image and Video Processing · Electrical Eng. & Systems 2020-11-26 Björn Browatzki , Jörn-Philipp Lies , Christian Wallraven

Retinal blood vessel segmentation can extract clinically relevant information from fundus images. As manual tracing is cumbersome, algorithms based on Convolution Neural Networks have been developed. Such studies have used small publicly…

Image and Video Processing · Electrical Eng. & Systems 2024-06-24 Jeremiah Fadugba , Patrick Köhler , Lisa Koch , Petru Manescu , Philipp Berens

The unique cost, flexibility, speed, and efficiency of modern UAVs make them an attractive choice in many applications in contemporary society. This, however, causes an ever-increasing number of reported malicious or accidental incidents,…

Artificial Intelligence · Computer Science 2024-10-22 Nikos Sakellariou , Antonios Lalas , Konstantinos Votis , Dimitrios Tzovaras

Target detection is pivotal for modern urban computing applications. While image-based techniques are widely adopted, they falter under challenging environmental conditions such as adverse weather, poor lighting, and occlusion. To improve…

Image and Video Processing · Electrical Eng. & Systems 2024-02-29 Chen Zhu , Zhouxiang Zhao , Zejing Shan , Lijie Yang , Sijie Ji , Zhaohui Yang , Zhaoyang Zhang

Convolutional Neural Networks (CNNs) have successfully been used to classify diabetic retinopathy (DR) fundus images in recent times. However, deeper representations in CNNs may capture higher-level semantics at the expense of spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Samuel Ofosu Mensah , Bubacarr Bah , Willie Brink

Recently anomaly detection has drawn much attention in diagnosing ocular diseases. Most existing anomaly detection research in fundus images has relatively large anomaly scores in the salient retinal structures, such as blood vessels,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Jingqi Niu , Shiwen Dong , Qinji Yu , Kang Dang , Xiaowei Ding

Fluorescein angiography can provide a map of retinal vascular structure and function, which is commonly used in ophthalmology diagnosis, however, this imaging modality may pose risks of harm to the patients. To help physicians reduce the…

Image and Video Processing · Electrical Eng. & Systems 2020-06-19 Wanyue Li , Wen Kong , Yiwei Chen , Jing Wang , Yi He , Guohua Shi , Guohua Deng

Diabetic retinopathy (DR) results in vision loss if not treated early. A computer-aided diagnosis (CAD) system based on retinal fundus images is an efficient and effective method for early DR diagnosis and assisting experts. A…

Computer Vision and Pattern Recognition · Computer Science 2019-08-23 Norah Asiri , Muhammad Hussain , Fadwa Al Adel , Nazih Alzaidi

Fundus images are very useful in identifying various ophthalmic disorders. However, due to the presence of artifacts, the visibility of the retina is severely affected. This may result in misdiagnosis of the disorder which may lead to more…

Image and Video Processing · Electrical Eng. & Systems 2021-12-28 Sai Koushik S S , K. G. Srinivasa

An autonomous system's perception engine must provide an accurate understanding of the environment for it to make decisions. Deep learning based object detection networks experience degradation in the performance and robustness for small…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Hemant Kumawat , Saibal Mukhopadhyay

This work aims to research an automatic method for detecting Age-related Macular Degeneration (AMD) lesions in RGB eye fundus images. For this, we align invasively obtained eye fundus contrast images (the "golden standard" diagnostic) to…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Rokas Pečiulis , Mantas Lukoševičius , Algimantas Kriščiukaitis , Robertas Petrolis , Dovilė Buteikienė

Person detection is a key problem for many computer vision tasks. While face detection has reached maturity, detecting people under a full variation of camera view-points, human poses, lighting conditions and occlusions is still a difficult…

Computer Vision and Pattern Recognition · Computer Science 2015-11-26 Tuan-Hung Vu , Anton Osokin , Ivan Laptev

Retinopathy of Prematurity (ROP) is a potentially blinding eye disorder because of damage to the eye's retina which can affect babies born prematurely. Screening of ROP is essential for early detection and treatment. This is a laborious and…

Image and Video Processing · Electrical Eng. & Systems 2024-06-18 Sajid Rahim , Kourosh Sabri , Anna Ells , Alan Wassyng , Mark Lawford , Linyang Chu , Wenbo He

This paper attacks an emerging challenge of multi-modal retinal disease recognition. Given a multi-modal case consisting of a color fundus photo (CFP) and an array of OCT B-scan images acquired during an eye examination, we aim to build a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Xirong Li , Yang Zhou , Jie Wang , Hailan Lin , Jianchun Zhao , Dayong Ding , Weihong Yu , Youxin Chen

Imaging methods by using computer techniques provide doctors assistance at any time and relieve their workload, especially for iterative processes like identifying objects of interest such as lesions and anatomical structures from the…

Medical Physics · Physics 2020-04-22 Meysam Tavakoli , Sina Jazani , Mahdieh Nazar

Diabetic retinopathy is one of the leading causes of preventable blindness in the world. Its earliest sign are red lesions, a general term that groups both microaneurysms and hemorrhages. In daily clinical practice, these lesions are…

Computer Vision and Pattern Recognition · Computer Science 2017-10-16 José Ignacio Orlando , Elena Prokofyeva , Mariana del Fresno , Matthew B. Blaschko

Head detection and localization is a demanding task and a key element for many computer vision applications, like video surveillance, Human Computer Interaction and face analysis. The stunning amount of work done for detecting faces on RGB…

Computer Vision and Pattern Recognition · Computer Science 2017-11-09 Diego Ballotta , Guido Borghi , Roberto Vezzani , Rita Cucchiara

Optical coherence tomography (OCT) based measurements of retinal layer thickness, such as the retinal nerve fibre layer (RNFL) and the ganglion cell with inner plexiform layer (GCIPL) are commonly used for the diagnosis and monitoring of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Stefan Maetschke , Bhavna Antony , Hiroshi Ishikawa , Gadi Wollstein , Joel S. Schuman , Rahil Garnavi

With the advent of Neural Radiance Fields (NeRF), neural networks can now render novel views of a 3D scene with quality that fools the human eye. Yet, generating these images is very computationally intensive, limiting their applicability…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Daniel Rebain , Wei Jiang , Soroosh Yazdani , Ke Li , Kwang Moo Yi , Andrea Tagliasacchi