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In this paper we address the benefit of adding adversarial training to the task of monocular depth estimation. A model can be trained in a self-supervised setting on stereo pairs of images, where depth (disparities) are an intermediate…

Image and Video Processing · Electrical Eng. & Systems 2019-10-30 Rick Groenendijk , Sezer Karaoglu , Theo Gevers , Thomas Mensink

Optic disc (OD) and optic cup (OC) are regions of prominent clinical interest in a retinal fundus image. They are the primary indicators of a glaucomatous condition. With the advent and success of deep learning for healthcare research,…

Image and Video Processing · Electrical Eng. & Systems 2020-12-15 Aniketh Manjunath , Subramanya Jois , Chandra Sekhar Seelamantula

Valid segmentation of the optic disc (OD) and optic cup (OC) from fundus photographs is essential for glaucoma screening. Unfortunately, existing deep learning methods do not guarantee clinical validness including star-convexity and nested…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Rimsa Goperma , Rojan Basnet , Liang Zhao

Recent advancements of neural networks lead to reliable monocular depth estimation. Monocular depth estimated techniques have the upper hand over traditional depth estimation techniques as it only needs one image during inference. Depth…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Alwyn Mathew , Aditya Prakash Patra , Jimson Mathew

A single color image can contain many cues informative towards different aspects of local geometric structure. We approach the problem of monocular depth estimation by using a neural network to produce a mid-level representation that…

Computer Vision and Pattern Recognition · Computer Science 2016-09-08 Ayan Chakrabarti , Jingyu Shao , Gregory Shakhnarovich

Depth estimation from a single image is an important task that can be applied to various fields in computer vision, and has grown rapidly with the development of convolutional neural networks. In this paper, we propose a novel structure and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Doyeon Kim , Woonghyun Ka , Pyungwhan Ahn , Donggyu Joo , Sehwan Chun , Junmo Kim

Monocular depth estimation is the task of obtaining a measure of distance for each pixel using a single image. It is an important problem in computer vision and is usually solved using neural networks. Though recent works in this area have…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Nikita Durasov , Mikhail Romanov , Valeriya Bubnova , Pavel Bogomolov , Anton Konushin

Single image depth estimation is a challenging problem. The current state-of-the-art method formulates the problem as that of ordinal regression. However, the formulation is not fully differentiable and depth maps are not generated in an…

Computer Vision and Pattern Recognition · Computer Science 2020-06-17 Kunal Swami , Prasanna Vishnu Bondada , Pankaj Kumar Bajpai

A major cause of irreversible visual impairment is angle-closure glaucoma, which can be screened through imagery from Anterior Segment Optical Coherence Tomography (AS-OCT). Previous computational diagnostic techniques address this…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Huazhu Fu , Yanwu Xu , Stephen Lin , Damon Wing Kee Wong , Baskaran Mani , Meenakshi Mahesh , Tin Aung , Jiang Liu

Depth information is the foundation of perception, essential for autonomous driving, robotics, and other source-constrained applications. Promptly obtaining accurate and efficient depth information allows for a rapid response in dynamic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Xin Zhang , Rabab Abdelfattah , Yuqi Song , Samuel A. Dauchert , Xiaofeng wang

We propose a novel algorithm for monocular depth estimation that decomposes a metric depth map into a normalized depth map and scale features. The proposed network is composed of a shared encoder and three decoders, called G-Net, N-Net, and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Jinyoung Jun , Jae-Han Lee , Chul Lee , Chang-Su Kim

We propose a depth estimation method from a single-shot monocular endoscopic image using Lambertian surface translation by domain adaptation and depth estimation using multi-scale edge loss. We employ a two-step estimation process including…

Image and Video Processing · Electrical Eng. & Systems 2022-01-13 Masahiro Oda , Hayato Itoh , Kiyohito Tanaka , Hirotsugu Takabatake , Masaki Mori , Hiroshi Natori , Kensaku Mori

Neural networks have shown great success in extracting geometric information from color images. Especially, monocular depth estimation networks are increasingly reliable in real-world scenes. In this work we investigate the applicability of…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Dominik Engel , Sebastian Hartwig , Timo Ropinski

In this work, we propose a special cascade network for image segmentation, which is based on the U-Net networks as building blocks and the idea of the iterative refinement. The model was mainly applied to achieve higher recognition quality…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Artem Sevastopolsky , Stepan Drapak , Konstantin Kiselev , Blake M. Snyder , Jeremy D. Keenan , Anastasia Georgievskaya

Purpose: (1) To develop a deep learning algorithm to automatically segment structures of the optic nerve head (ONH) and macula in 3D wide-field optical coherence tomography (OCT) scans; (2) To assess whether 3D macula or ONH structures (or…

Depth estimation and 3D object detection are critical for scene understanding but remain challenging to perform with a single image due to the loss of 3D information during image capture. Recent models using deep neural networks have…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Julie Chang , Gordon Wetzstein

Dense depth estimation and 3D reconstruction of a surgical scene are crucial steps in computer assisted surgery. Recent work has shown that depth estimation from a stereo images pair could be solved with convolutional neural networks.…

Image and Video Processing · Electrical Eng. & Systems 2021-07-24 Baoru Huang , Jianqing Zheng , Anh Nguyen , David Tuch , Kunal Vyas , Stamatia Giannarou , Daniel S. Elson

Glaucoma is a leading cause of irreversible blindness. Accurate segmentation of the optic disc (OD) and cup (OC) from fundus images is beneficial to glaucoma screening and diagnosis. Recently, convolutional neural networks demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Shujun Wang , Lequan Yu , Xin Yang , Chi-Wing Fu , Pheng-Ann Heng

Monocular depth estimation can play an important role in addressing the issue of deriving scene geometry from 2D images. It has been used in a variety of industries, including robots, self-driving cars, scene comprehension, 3D…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Ruilin Ma , Shiyao Chen , Qin Zhang

Automatic evaluation of the retinal fundus image is emerging as one of the most important tools for early detection and treatment of progressive eye diseases like Glaucoma. Glaucoma results to a progressive degeneration of vision and is…

Image and Video Processing · Electrical Eng. & Systems 2021-12-13 Sneha Dasgupta , Rishav Mukherjee , Kaushik Dutta , Anindya Sen