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Existing methods for scale-invariant monocular depth estimation (SI MDE) often struggle due to the complexity of the task, and limited and non-diverse datasets, hindering generalizability in real-world scenarios. This is while…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 S. Mahdi H. Miangoleh , Mahesh Reddy , Yağız Aksoy

In numerous applications, Fourier-domain optical coherence tomography (FD-OCT) suffers from a limited imaging depth due to signal roll-off, a limited focal range, and autocorrelation noise. Here, we propose a parallel full-field FD-OCT…

In this paper, we propose a framework that incorporates experts diagnostics and insights into the analysis of Optical Coherence Tomography (OCT) using multi-modal learning. To demonstrate the effectiveness of this approach, we create a…

Image and Video Processing · Electrical Eng. & Systems 2022-03-22 Y. Logan , K. Kokilepersaud , G. Kwon , G. AlRegib , C. Wykoff , H. Yu

The existing methods for measuring the orbital-angular-momentum (OAM) spectrum suffer from issues such as poor efficiency, strict interferometric stability requirements, and too much loss. Furthermore, most techniques inevitably discard…

Traditional full-field optical coherence tomography (FF-OCT) is effective for rapid cross-sectional imaging but often suffers from incoherent signals due to imbalanced light intensities between the sample and reference arms. While the…

Optics · Physics 2024-10-17 Youlong Fan , Qingye Hu , Zhongping Wang , Zengming Zhang , Xiantao Wei

Speckle is an intrinsic pattern in optical coherence tomography (OCT) that obscures fine image features and degrades effective resolution. In this study, we propose a numerical speckle reduction method based on the dispersed scatterer model…

Depth estimation plays a important role in SLAM, odometry, and autonomous driving. Especially, monocular depth estimation is profitable technology because of its low cost, memory, and computation. However, it is not a sufficiently…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Hyeonsoo Jang , Yeongmin Ko , Younkwan Lee , Moongu Jeon

Mean Deviation (MD) is a critical metric for assessing visual field loss in ophthalmology. While previous work has focused solely on predicting MD from Optical Coherence Tomography (OCT), it is intuitive to assume that combining OCT with…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Haojie Yin , Chengcheng Feng , Tianyi Liu , Tianqi Zhang , Kaizhu Huang

Estimating the depth of omnidirectional images is more challenging than that of normal field-of-view (NFoV) images because the varying distortion can significantly twist an object's shape. The existing methods suffer from troublesome…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Zhijie Shen , Chunyu Lin , Lang Nie , Kang Liao , Yao zhao

Optical coherence tomography (OCT) has seen widespread success as an in vivo clinical diagnostic 3D imaging modality, impacting areas including ophthalmology, cardiology, and gastroenterology. Despite its many advantages, such as high…

Optical coherence tomography (OCT) is a non-invasive imaging modality which is widely used in clinical ophthalmology. OCT images are capable of visualizing deep retinal layers which is crucial for early diagnosis of retinal diseases. In…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Peyman Gholami , Priyanka Roy , Mohana Kuppuswamy Parthasarathy , Vasudevan Lakshminarayanan

Current multispectral imagers suffer from low photon efficiency and limited spectrum range. These limitations are partially due to the technological limitations from array sensors (CCD or CMOS), and also caused by separative measurement of…

Optics · Physics 2016-04-25 Liheng Bian , Jinli Suo , Guohai Situ , Ziwei Li , Feng Chen , Qionghai Dai

Monocular depth estimation has drawn widespread attention from the vision community due to its broad applications. In this paper, we propose a novel physics (geometry)-driven deep learning framework for monocular depth estimation by…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Shuwei Shao , Zhongcai Pei , Weihai Chen , Xingming Wu , Zhengguo Li

Leveraging synthetically rendered data offers great potential to improve monocular depth estimation and other geometric estimation tasks, but closing the synthetic-real domain gap is a non-trivial and important task. While much recent work…

Computer Vision and Pattern Recognition · Computer Science 2020-06-26 Yunhan Zhao , Shu Kong , Daeyun Shin , Charless Fowlkes

While monocular depth estimation (MDE) is an important problem in computer vision, it is difficult due to the ambiguity that results from the compression of a 3D scene into only 2 dimensions. It is common practice in the field to treat it…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Dylan Auty , Krystian Mikolajczyk

Drone-based multi-object tracking is essential yet highly challenging due to small targets, severe occlusions, and cluttered backgrounds. Existing RGB-based tracking algorithms heavily depend on spatial appearance cues such as color and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Tianhao Li , Tingfa Xu , Ying Wang , Haolin Qin , Xu Lin , Jianan Li

Existing multi-modal learning methods on fundus and OCT images mostly require both modalities to be available and strictly paired for training and testing, which appears less practical in clinical scenarios. To expand the scope of clinical…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Lehan Wang , Chongchong Qi , Chubin Ou , Lin An , Mei Jin , Xiangbin Kong , Xiaomeng Li

Fiber-form optics extends the high-resolution tomographic imaging capabilities of Optical Coherence Tomography (OCT) to the inside of the human body, i.e., endoscopic OCT. However, it still faces challenges due to the trade-off between…

Optics · Physics 2024-09-04 Chengfu Gu , Haoran Zhang , Qi Lan , Weiyi Zhang , Chang Liu , Jianlong Yang

The paper presents a novel approach to occlusion handling problem in depth estimation using three views. A solution based on modification of similarity cost function is proposed. During the depth estimation via optimization algorithms like…

Multimedia · Computer Science 2017-11-13 Krzysztof Wegner , Olgierd Stankiewicz , Marek Domanski

Optical coherence tomography (OCT) applications like ultra-widefield and full eye-length imaging are of high interest for various diagnostic purposes. In swept-source OCT these techniques require a swept light source, which is coherent over…

Medical Physics · Physics 2020-08-13 Julian Klee , Jan Philip Kolb , Christin Grill , Wolfgang Draxinger , Tom Pfeiffer , Robert Huber
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