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Related papers: PHI-MVS: Plane Hypothesis Inference Multi-view Ste…

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Image-based geometric modeling and novel view synthesis based on sparse, large-baseline samplings are challenging but important tasks for emerging multimedia applications such as virtual reality and immersive telepresence. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Wenpeng Xing , Jie Chen , Zaifeng Yang , Qiang Wang

Automatic reconstruction of 3D models from images using multi-view Structure-from-Motion methods has been one of the most fruitful outcomes of computer vision. These advances combined with the growing popularity of Micro Aerial Vehicles as…

Robotics · Computer Science 2016-11-15 Shreyansh Daftry , Christof Hoppe , Horst Bischof

There is an emerging effort to combine the two popular 3D frameworks using Multi-View Stereo (MVS) and Neural Implicit Surfaces (NIS) with a specific focus on the few-shot / sparse view setting. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Luoyuan Xu , Tao Guan , Yuesong Wang , Wenkai Liu , Zhaojie Zeng , Junle Wang , Wei Yang

Purpose: In multi-spectral imaging (MSI), several fast spin echo volumes with discrete Larmor frequency offsets are acquired in an interleaved fashion with multiple concatenations. Here, a variable resolution (VR) method to nearly halve…

Medical Physics · Physics 2023-06-06 Nikolai J. Mickevicius , Azadeh Sharafi , Andrew S. Nencka , Kevin M. Koch

We address multiview stereo (MVS), an important 3D vision task that reconstructs a 3D model such as a dense point cloud from multiple calibrated images. We propose CER-MVS (Cascaded Epipolar RAFT Multiview Stereo), a new approach based on…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Zeyu Ma , Zachary Teed , Jia Deng

Geophysical inversion should ideally produce geologically realistic subsurface models that explain the available data. Multiple-point statistics is a geostatistical approach to construct subsurface models that are consistent with…

Geophysics · Physics 2017-01-09 T. Zahner , T. Lochbühler , G. Mariethoz , N. Linde

The biggest improvements in Photometric Stereo (PS) field has recently come from adoption of differentiable volumetric rendering techniques such as NeRF or Neural SDF achieving impressive reconstruction error of 0.2mm on DiLiGenT-MV…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Fotios Logothetis , Ignas Budvytis , Stephan Liwicki , Roberto Cipolla

Traditional stereo algorithms have focused their efforts on reconstruction quality and have largely avoided prioritizing for run time performance. Robots, on the other hand, require quick maneuverability and effective computation to observe…

Robotics · Computer Science 2016-02-18 Sudeep Pillai , Srikumar Ramalingam , John J. Leonard

We present a learning based approach for multi-view stereopsis (MVS). While current deep MVS methods achieve impressive results, they crucially rely on ground-truth 3D training data, and acquisition of such precise 3D geometry for…

Computer Vision and Pattern Recognition · Computer Science 2019-06-07 Tejas Khot , Shubham Agrawal , Shubham Tulsiani , Christoph Mertz , Simon Lucey , Martial Hebert

To reduce scanning time and/or improve spatial/temporal resolution in some MRI applications, parallel MRI (pMRI) acquisition techniques with multiple coils acquisition have emerged since the early 1990s as powerful 3D imaging methods that…

Optimization and Control · Mathematics 2009-09-03 Lotfi Chaari , Jean-Christophe Pesquet , Philippe Ciuciu , Amel Benazza-Benyahia

Pairwise matching cost aggregation is a crucial step for modern learning-based Multi-view Stereo (MVS). Prior works adopt an early aggregation scheme, which adds up pairwise costs into an intermediate cost. However, we analyze that this…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Jiang Wu , Rui Li , Yu Zhu , Wenxun Zhao , Jinqiu Sun , Yanning Zhang

We propose a cost volume-based neural network for depth inference from multi-view images. We demonstrate that building a cost volume pyramid in a coarse-to-fine manner instead of constructing a cost volume at a fixed resolution leads to a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Jiayu Yang , Wei Mao , Jose M. Alvarez , Miaomiao Liu

Recently, patch deformation-based methods have demonstrated significant strength in multi-view stereo by adaptively expanding the reception field of patches to help reconstruct textureless areas. However, such methods mainly concentrate on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Zhenlong Yuan , Cong Liu , Fei Shen , Zhaoxin Li , Jinguo Luo , Tianlu Mao , Zhaoqi Wang

Purpose: To introduce a fast and improved direct reconstruction method for multi-shot diffusion weighted (msDW) scans for high-resolution studies. Methods:Multi-shot EPI methods can enable higher spatial resolution for diffusion MRI…

Medical Physics · Physics 2019-06-26 Merry Mani , Hemant Kumar Aggarwal , Vincent Magnotta , Mathews Jacob

Recovering the shape and appearance of real-world objects from natural 2D images is a long-standing and challenging inverse rendering problem. In this paper, we introduce a novel hybrid differentiable rendering method to efficiently…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Xiangyang Zhu , Yiling Pan , Bailin Deng , Bin Wang

Multi-view stereo reconstruction (MVS) in the wild requires to first estimate the camera parameters e.g. intrinsic and extrinsic parameters. These are usually tedious and cumbersome to obtain, yet they are mandatory to triangulate…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Shuzhe Wang , Vincent Leroy , Yohann Cabon , Boris Chidlovskii , Jerome Revaud

We propose a learning-based network for depth map estimation from multi-view stereo (MVS) images. Our proposed network consists of three sub-networks: 1) a base network for initial depth map estimation from an unstructured stereo image…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Sizhang Dai , Weibing Huang

We introduce the first end-to-end learning-based solution to near-field Photometric Stereo (PS), where the light sources are close to the object of interest. This setup is especially useful for reconstructing large immobile objects. Our…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Daniel Lichy , Soumyadip Sengupta , David W. Jacobs

The deep multi-view stereo (MVS) and stereo matching approaches generally construct 3D cost volumes to regularize and regress the output depth or disparity. These methods are limited when high-resolution outputs are needed since the memory…

Computer Vision and Pattern Recognition · Computer Science 2020-06-08 Xiaodong Gu , Zhiwen Fan , Zuozhuo Dai , Siyu Zhu , Feitong Tan , Ping Tan

Existing state-of-the-art novel view synthesis methods rely on either fairly accurate 3D geometry estimation or sampling of the entire space for neural volumetric rendering, which limit the overall efficiency. In order to improve the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Yuemei Zhou , Tao Yu , Zerong Zheng , Ying Fu , Yebin Liu