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Remarkable results have been achieved by DCNN based self-supervised depth estimation approaches. However, most of these approaches can only handle either day-time or night-time images, while their performance degrades for all-day images due…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Lina Liu , Xibin Song , Mengmeng Wang , Yong Liu , Liangjun Zhang

Imaging depth and spectrum have been extensively studied in isolation from each other for decades. Recently, hyperspectral-depth (HS-D) imaging emerges to capture both information simultaneously by combining two different imaging systems;…

Image and Video Processing · Electrical Eng. & Systems 2021-08-17 Seung-Hwan Baek , Hayato Ikoma , Daniel S. Jeon , Yuqi Li , Wolfgang Heidrich , Gordon Wetzstein , Min H. Kim

Multi-object or integral field spectrographs are recognized techniques for achieving simultaneous spectroscopic observations of different or extended sky objects with a high multiplex factor. In this communication is described a…

Instrumentation and Detectors · Physics 2016-12-14 Francois Henault , Florence Laurent

Optical coherence tomography (OCT) as retina imaging technology is currently used by ophthalmologist as a non-invasive and non-contact method for diagnosis of agerelated degeneration (AMD) and diabetic macular edema (DME) diseases. Fluid…

Image and Video Processing · Electrical Eng. & Systems 2019-12-30 Elyas Rashno , Abdolreza Rashno , Sadegh Fadaei

The treatment of age-related macular degeneration (AMD) requires continuous eye exams using optical coherence tomography (OCT). The need for treatment is determined by the presence or change of disease-specific OCT-based biomarkers.…

Image and Video Processing · Electrical Eng. & Systems 2026-03-12 Timo Kepp , Helge Sudkamp , Claus von der Burchard , Hendrik Schenke , Peter Koch , Gereon Hüttmann , Johann Roider , Mattias P. Heinrich , Heinz Handels

Orbital angular momentum (OAM) recognition of vortex beams is critical for applications ranging from optical communications to quantum technologies. However, conventional approaches designed for free-space propagation struggle when light…

Speckle noise has long been an extensively studied problem in medical imaging. In recent years, there have been significant advances in leveraging deep learning methods for noise reduction. Nevertheless, adaptation of supervised learning…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Deborah Pereg

Diabetic Retinopathy (DR), a prevalent and severe complication of diabetes, affects millions of individuals globally, underscoring the need for accurate and timely diagnosis. Recent advancements in imaging technologies, such as…

Metric depth estimation from visual sensors is crucial for robots to perceive, navigate, and interact with their environment. Traditional range imaging setups, such as stereo or structured light cameras, face hassles including calibration,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Blanca Lasheras-Hernandez , Klaus H. Strobl , Sergio Izquierdo , Tim Bodenmüller , Rudolph Triebel , Javier Civera

Optical coherence tomography (OCT) is a non-invasive 3D modality widely used in ophthalmology for imaging the retina. Achieving automated, anatomically coherent retinal layer segmentation on OCT is important for the detection and monitoring…

Image and Video Processing · Electrical Eng. & Systems 2022-10-26 Botond Fazekas , Guilherme Aresta , Dmitrii Lachinov , Sophie Riedl , Julia Mai , Ursula Schmidt-Erfurth , Hrvoje Bogunovic

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

Conventional self-supervised monocular depth prediction methods are based on a static environment assumption, which leads to accuracy degradation in dynamic scenes due to the mismatch and occlusion problems introduced by object motions.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Ziyue Feng , Liang Yang , Longlong Jing , Haiyan Wang , YingLi Tian , Bing Li

Monocular depth estimation aims to recover the depth information of 3D scenes from 2D images. Recent work has made significant progress, but its reliance on large-scale datasets and complex decoders has limited its efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Zeyu Ren , Zeyu Zhang , Wukai Li , Qingxiang Liu , Hao Tang

The multi-object spectrograph (MOS) has been the benchmark for the current generation of astronomical spectrographs, valued for its ability to acquire the spectra of hundreds of objects simultaneously. In the last two decades, the digital…

Instrumentation and Methods for Astrophysics · Physics 2022-10-03 Shaojie Chen , Matthew C. H. Leung , Xuefeng Yao , Suresh Sivanandam , Isabelle Sanders , Rosalind Liang

Optical coherence tomography (OCT) is a non-invasive imaging technique with extensive clinical applications in ophthalmology. OCT enables the visualization of the retinal layers, playing a vital role in the early detection and monitoring of…

Controllable Depth-of-Field (DoF) imaging commonly produces amazing visual effects based on heavy and expensive high-end lenses. However, confronted with the increasing demand for mobile scenarios, it is desirable to achieve a lightweight…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Xiaolong Qian , Qi Jiang , Yao Gao , Shaohua Gao , Zhonghua Yi , Lei Sun , Kai Wei , Haifeng Li , Kailun Yang , Kaiwei Wang , Jian Bai

Monocular 3D object detection has attracted widespread attention due to its potential to accurately obtain object 3D localization from a single image at a low cost. Depth estimation is an essential but challenging subtask of monocular 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Longfei Yan , Pei Yan , Shengzhou Xiong , Xuanyu Xiang , Yihua Tan

Reliable depth estimation under real optical conditions remains a core challenge for camera vision in systems such as autonomous robotics and augmented reality. Despite recent progress in depth estimation and depth-of-field rendering,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Nisarg K. Trivedi , Vinayak A. Belludi , Li-Yun Wang

Optical coherence tomography angiography (OCTA) has been established as a powerful tool for investigating vascular diseases and is expected to become a standard of care technology. However, its widespread clinical usage is hindered by…

Medical Physics · Physics 2021-09-10 Si Chen , Kan Lin , Linbo Liu

Self-supervised multi-frame methods have currently achieved promising results in depth estimation. However, these methods often suffer from mismatch problems due to the moving objects, which break the static assumption. Additionally,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Yiyang Sun , Zhiyuan Xu , Xiaonian Wang , Jing Yao