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Active stereo technique using single pattern projection, a.k.a. one-shot 3D scan, have drawn a wide attention from industry, medical purposes, etc. One severe drawback of one-shot 3D scan is sparse reconstruction. In addition, since spatial…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Hiroto Harada , Michihiro Mikamo , Ryo Furukawa , Ryushuke Sagawa , Hiroshi Kawasaki

Disparity estimation is a difficult problem in stereo vision because the correspondence technique fails in images with textureless and repetitive regions. Recent body of work using deep convolutional neural networks (CNN) overcomes this…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Rowel Atienza

Plane feature is a kind of stable landmark to reduce drift error in SLAM system. It is easy and fast to extract planes from dense point cloud, which is commonly acquired from RGB-D camera or lidar. But for stereo camera, it is hard to…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Xiaoyu Zhang , Wei Wang , Xianyu Qi , Ziwei Liao

We introduce a novel learning-based method to reconstruct the high-quality geometry and complex, spatially-varying BRDF of an arbitrary object from a sparse set of only six images captured by wide-baseline cameras under collocated point…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Sai Bi , Zexiang Xu , Kalyan Sunkavalli , David Kriegman , Ravi Ramamoorthi

Accurate lighting estimation is challenging yet critical to many computer vision and computer graphics tasks such as high-dynamic-range (HDR) relighting. Existing approaches model lighting in either frequency domain or spatial domain which…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Fangneng Zhan , Changgong Zhang , Wenbo Hu , Shijian Lu , Feiying Ma , Xuansong Xie , Ling Shao

The I-table contains luminous intensity values over the range of angles for the luminaires used in the road lighting in accordance with technical report CIE 121:1996. A limited number of angles causes smoothing of the luminous intensity…

光学 · 物理学 2021-01-05 L. Lipnický , R. Dubnička , J. Petržala , L. Kómar

The problem of estimating a surface shape from its observed reflectance properties still remains a challenging task in computer vision. The presence of global illumination effects such as inter-reflections or cast shadows makes the task…

计算机视觉与模式识别 · 计算机科学 2021-03-24 David Honzátko , Engin Türetken , Pascal Fua , L. Andrea Dunbar

We present surface normal estimation using a single near infrared (NIR) image. We are focusing on fine-scale surface geometry captured with an uncalibrated light source. To tackle this ill-posed problem, we adopt a generative adversarial…

计算机视觉与模式识别 · 计算机科学 2016-03-25 Youngjin Yoon , Gyeongmin Choe , Namil Kim , Joon-Young Lee , In So Kweon

Stable Diffusion (SD) has evolved DDPM (Denoising Diffusion Probabilistic Model) based image generation significantly by denoising in latent space instead of feature space. This popularized DDPM-based image generation as the cost and…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Md Abu Obaida Zishan , Jannatun Noor , Annajiat Alim Rasel

Optimization-based filtering smoothes an image by minimizing a fidelity function and simultaneously preserves edges by exploiting a sparse norm penalty over gradients. It has obtained promising performance in practical problems, such as…

图形学 · 计算机科学 2013-05-20 Chengxi Ye , Dacheng Tao , Mingli Song , David W. Jacobs , Min Wu

We propose a fast and generalizable solution to Multi-view Photometric Stereo (MVPS), called MVPSNet. The key to our approach is a feature extraction network that effectively combines images from the same view captured under multiple…

计算机视觉与模式识别 · 计算机科学 2023-05-19 Dongxu Zhao , Daniel Lichy , Pierre-Nicolas Perrin , Jan-Michael Frahm , Soumyadip Sengupta

We present SOLID-Net, a neural network for spatially-varying outdoor lighting estimation from a single outdoor image for any 2D pixel location. Previous work has used a unified sky environment map to represent outdoor lighting. Instead, we…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Yongjie Zhu , Yinda Zhang , Si Li , Boxin Shi

Stereo vision is an effective technique for depth estimation with broad applicability in autonomous urban and highway driving. While various deep learning-based approaches have been developed for stereo, the input data from a binocular…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Faranak Shamsafar , Andreas Zell

We propose a non-learning depth completion method for a sparse depth map captured using a light detection and ranging (LiDAR) sensor guided by a pair of stereo images. Generally, conventional stereo-aided depth completion methods have two…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Yasuhiro Yao , Ryoichi Ishikawa , Shingo Ando , Kana Kurata , Naoki Ito , Jun Shimamura , Takeshi Oishi

We develop a deep learning network to estimate the illumination spectrum of hyperspectral images under various lighting conditions. To this end, a dataset, IllumNet, was created. Images were captured using a Specim IQ camera under various…

计算机视觉与模式识别 · 计算机科学 2023-06-01 Nariman Habili , Jeremy Oorloff , Lars Petersson

Gravitational lens modeling of spatially resolved sources is a challenging inverse problem with many observational constraints and model parameters. We examine established pixel-based source reconstruction algorithms for de-lensing the…

宇宙学与河外天体物理 · 物理学 2015-06-22 Amitpal Tagore , Charles Keeton

State-of-the-art supervised stereo matching methods have achieved remarkable performance on various benchmarks. However, their generalization to real-world scenarios remains challenging due to the scarcity of annotated real-world stereo…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Xianqi Wang , Hao Yang , Gangwei Xu , Junda Cheng , Min Lin , Yong Deng , Jinliang Zang , Yurui Chen , Xin Yang

Synthesizing a densely sampled light field from a single image is highly beneficial for many applications. Moreover, jointly solving both angular and spatial super-resolution problem also introduces new possibilities in light field imaging.…

图像与视频处理 · 电气工程与系统科学 2020-06-30 Andre Ivan , Williem , In Kyu Park

Defocus blur is a physical consequence of the optical sensors used in most cameras. Although it can be used as a photographic style, it is commonly viewed as an image degradation modeled as the convolution of a sharp image with a…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Ali Karaali , Claudio Rosito Jung

The unceasing demand for continuous situational awareness calls for innovative and large-scale signal processing algorithms, complemented by collaborative and adaptive sensing platforms to accomplish the objectives of layered sensing and…

统计方法学 · 统计学 2015-05-20 Juan A. Bazerque , Gonzalo Mateos , Georgios B. Giannakis