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Existing light field representations, such as epipolar plane image (EPI) and sub-aperture images, do not consider the structural characteristics across the views, so they usually require additional disparity and spatial structure cues for…

Image and Video Processing · Electrical Eng. & Systems 2022-04-04 Yaning Li , Xue Wang , Hao Zhu , Guoqing Zhou , Qing Wang

Exploiting light field data makes it possible to obtain dense and accurate depth map. However, synthetic scenes with limited disparity range cannot contain the diversity of real scenes. By training in synthetic data, current learning-based…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Kunyuan Li , Jun Zhang , Jun Gao , Meibin Qi

Depth estimation is a fundamental problem in light field processing. Epipolar-plane image (EPI)-based methods often encounter challenges such as low accuracy in slope computation due to discretization errors and limited angular resolution.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Ping Zhou , Langqing Shi , Xiaoyang Liu , Jing Jin , Yuting Zhang , Junhui Hou

Echo-planar imaging (EPI) remains the cornerstone of diffusion MRI, but it is prone to severe geometric distortions due to its rapid sampling scheme that renders the sequence highly sensitive to $B_{0}$ field inhomogeneities. While deep…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Namgyu Han , Seong Dae Yun , Chaeeun Lim , Sunghyun Seok , Sunju Kim , Yoonhwan Kim , Yohan Jun , Tae Hyung Kim , Berkin Bilgic , Jaejin Cho

Depth estimation is a fundamental problem for light field photography applications. Numerous methods have been proposed in recent years, which either focus on crafting cost terms for more robust matching, or on analyzing the geometry of…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Jie Chen , Junhui Hou , Yun Ni , Lap-Pui Chau

We present an algorithm to estimate fast and accurate depth maps from light fields via a sparse set of depth edges and gradients. Our proposed approach is based around the idea that true depth edges are more sensitive than texture edges to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Numair Khan , Min H. Kim , James Tompkin

Light field (LF) imaging, which captures both spatial and angular information of a scene, is undoubtedly beneficial to numerous applications. Although various techniques have been proposed for LF acquisition, achieving both angularly and…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Trung-Hieu Tran , Jan Berberich , Sven Simon

We propose a method to compute depth maps for every sub-aperture image in a light field in a view consistent way. Previous light field depth estimation methods typically estimate a depth map only for the central sub-aperture view, and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-10 Numair Khan , Min H. Kim , James Tompkin

We introduce the first learning-based dense matching algorithm, termed Equirectangular Projection-Oriented Dense Kernelized Feature Matching (EDM), specifically designed for omnidirectional images. Equirectangular projection (ERP) images,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Dongki Jung , Jaehoon Choi , Yonghan Lee , Somi Jeong , Taejae Lee , Dinesh Manocha , Suyong Yeon

We present a fast and accurate method for dense depth reconstruction from sparsely sampled light fields obtained using a synchronized camera array. In our method, the source images are over-segmented into non-overlapping compact superpixels…

Image and Video Processing · Electrical Eng. & Systems 2018-12-18 Aleksandra Chuchvara , Attila Barsi , Atanas Gotchev

Stereo depth estimation relies on optimal correspondence matching between pixels on epipolar lines in the left and right images to infer depth. In this work, we revisit the problem from a sequence-to-sequence correspondence perspective to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Zhaoshuo Li , Xingtong Liu , Nathan Drenkow , Andy Ding , Francis X. Creighton , Russell H. Taylor , Mathias Unberath

Accurately recovering images from phaseless measurements is a challenging and long-standing problem. In this work, we present "deepECpr," which combines expectation-consistent (EC) approximation with deep denoising networks to surpass…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Saurav K. Shastri , Philip Schniter

In this paper, we propose a deep learning architecture that produces accurate dense depth for the outdoor scene from a single color image and a sparse depth. Inspired by the indoor depth completion, our network estimates surface normals as…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Jiaxiong Qiu , Zhaopeng Cui , Yinda Zhang , Xingdi Zhang , Shuaicheng Liu , Bing Zeng , Marc Pollefeys

Dense matching is crucial for 3D scene reconstruction since it enables the recovery of scene 3D geometry from image acquisition. Deep Learning (DL)-based methods have shown effectiveness in the special case of epipolar stereo disparity…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Teng Wu , Bruno Vallet , Marc Pierrot-Deseilligny , Ewelina Rupnik

The spectral representation is an effecient tool to explore electrical properties of material mixtures. It separates the contributions of geometrical topology and intrinsic properties of the constituents in the system. The aim of this paper…

Materials Science · Physics 2007-05-23 Enis Tuncer

Reconstructing accurate surfaces from sparse multi-view images remains challenging due to severe geometric ambiguity and occlusions. Existing generalizable neural surface reconstruction methods primarily rely on cost volumes that summarize…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Xinhai Chang , Kaichen Zhou

Hyperspectral Image (HSI) classification is an important issue in remote sensing field with extensive applications in earth science. In recent years, a large number of deep learning-based HSI classification methods have been proposed.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Ning Chen , Jun Yue , Leyuan Fang , Shaobo Xia

We propose a novel explicit dense 3D reconstruction approach that processes a set of images of a scene with sensor poses and calibrations and estimates a photo-real digital model. One of the key innovations is that the underlying volumetric…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Samir Aroudj , Steven Lovegrove , Eddy Ilg , Tanner Schmidt , Michael Goesele , Richard Newcombe

Empirical Green's functions (EGFs) extracted from seismic ambient noise have been widely used to image Earth's interior structures, and the resolution of EGF-based tomography depends on the spatial density of seismic stations. However, due…

Geophysics · Physics 2026-01-12 Guoyi Chen , Junlun Li , Bao Deng

Depth completion aims to recover dense depth maps from sparse depth measurements. It is of increasing importance for autonomous driving and draws increasing attention from the vision community. Most of existing methods directly train a…

Computer Vision and Pattern Recognition · Computer Science 2019-10-16 Yan Xu , Xinge Zhu , Jianping Shi , Guofeng Zhang , Hujun Bao , Hongsheng Li
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