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Structure-from-motion (SfM) is a long-standing problem in the computer vision community, which aims to reconstruct the camera poses and 3D structure of a scene from a set of unconstrained 2D images. Classical frameworks solve this problem…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Jianyuan Wang , Nikita Karaev , Christian Rupprecht , David Novotny

Structure from motion (SfM) is an essential computer vision problem which has not been well handled by deep learning. One of the promising trends is to apply explicit structural constraint, e.g. 3D cost volume, into the network. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Xingkui Wei , Yinda Zhang , Zhuwen Li , Yanwei Fu , Xiangyang Xue

Non-line-of-sight (NLOS) imaging is based on capturing the multi-bounce indirect reflections from the hidden objects. Active NLOS imaging systems rely on the capture of the time of flight of light through the scene, and have shown great…

Image and Video Processing · Electrical Eng. & Systems 2022-04-19 Jiayong Peng , Fangzhou Mu , Ji Hyun Nam , Siddeshwar Raghavan , Yin Li , Andreas Velten , Zhiwei Xiong

Neural radiance fields (NeRF) and 3D Gaussian Splatting (3DGS) are popular techniques to reconstruct and render photo-realistic images. However, the pre-requisite of running Structure-from-Motion (SfM) to get camera poses limits their…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Yu Chen , Rolandos Alexandros Potamias , Evangelos Ververas , Jifei Song , Jiankang Deng , Gim Hee Lee

With recent advances, Feed-forward Reconstruction Models (FFRMs) have demonstrated great potential in reconstruction quality and adaptiveness to multiple downstream tasks. However, the excessive reliance on multi-view geometric annotations,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Youyu Chen , Junjun Jiang , Yueru Luo , Kui Jiang , Xianming Liu , Xu Yan , Dave Zhenyu Chen

Given dense image feature correspondences of a non-rigidly moving object across multiple frames, this paper proposes an algorithm to estimate its 3D shape for each frame. To solve this problem accurately, the recent state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Suryansh Kumar

This paper advocates the use of organic priors in classical non-rigid structure from motion (NRSfM). By organic priors, we mean invaluable intermediate prior information intrinsic to the NRSfM matrix factorization theory. It is shown that…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Suryansh Kumar , Luc Van Gool

Current methods for performing 3D reconstruction and novel view synthesis (NVS) in ultrasound imaging data often face severe artifacts when training NeRF-based approaches. The artifacts produced by current approaches differ from NeRF…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Rishit Dagli , Atsuhiro Hibi , Rahul G. Krishnan , Pascal N. Tyrrell

Model-based learned iterative reconstruction methods have recently been shown to outperform classical reconstruction algorithms. Applicability of these methods to large scale inverse problems is however limited by the available memory for…

Image and Video Processing · Electrical Eng. & Systems 2020-04-21 Andreas Hauptmann , Jonas Adler , Simon Arridge , Ozan Öktem

In this paper, we present an approach for combining non-rigid structure-from-motion (NRSfM) with deep generative models,and propose an efficient framework for discovering trajectories in the latent space of 2D GANs corresponding to changes…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 René Haas , Stella Graßhof , Sami S. Brandt

Reconstructing 3D face from a single unconstrained image remains a challenging problem due to diverse conditions in unconstrained environments. Recently, learning-based methods have achieved notable results by effectively capturing complex…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Danling Cao

We propose PR-RRN, a novel neural-network based method for Non-rigid Structure-from-Motion (NRSfM). PR-RRN consists of Residual-Recursive Networks (RRN) and two extra regularization losses. RRN is designed to effectively recover 3D shape…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Haitian Zeng , Yuchao Dai , Xin Yu , Xiaohan Wang , Yi Yang

We propose a novel learning-based approach for robust 3D shape matching. Our method builds upon deep functional maps and can be trained in a fully unsupervised manner. Previous deep functional map methods mainly focus on predicting…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Dongliang Cao , Paul Roetzer , Florian Bernard

We are witnessing an explosion of neural implicit representations in computer vision and graphics. Their applicability has recently expanded beyond tasks such as shape generation and image-based rendering to the fundamental problem of…

Computer Vision and Pattern Recognition · Computer Science 2022-05-26 Jiaming Sun , Xi Chen , Qianqian Wang , Zhengqi Li , Hadar Averbuch-Elor , Xiaowei Zhou , Noah Snavely

The Simultaneous Localization and Mapping (SLAM) problem addresses the possibility of a robot to localize itself in an unknown environment and simultaneously build a consistent map of this environment. Recently, cameras have been…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Hudson M. S. Bruno , Esther L. Colombini

Recently, a lot of attention has been focused on the incorporation of 3D data into face analysis and its applications. Despite providing a more accurate representation of the face, 3D facial images are more complex to acquire than 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Araceli Morales , Gemma Piella , Federico M. Sukno

The rapid development of Large Multimodal Models (LMMs) for 2D images and videos has spurred efforts to adapt these models for interpreting 3D scenes. However, the absence of large-scale 3D vision-language datasets has posed a significant…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Haochen Wang , Yucheng Zhao , Tiancai Wang , Haoqiang Fan , Xiangyu Zhang , Zhaoxiang Zhang

Over the last years, many face analysis tasks have accomplished astounding performance, with applications including face generation and 3D face reconstruction from a single "in-the-wild" image. Nevertheless, to the best of our knowledge,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Alexandros Lattas , Stylianos Moschoglou , Stylianos Ploumpis , Baris Gecer , Abhijeet Ghosh , Stefanos Zafeiriou

Fast and robust three-dimensional reconstruction of facial geometric structure from a single image is a challenging task with numerous applications. Here, we introduce a learning-based approach for reconstructing a three-dimensional face…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Elad Richardson , Matan Sela , Ron Kimmel

We present a novel Learning from Demonstration (LfD) method, Deformable Manipulation from Demonstrations (DMfD), to solve deformable manipulation tasks using states or images as inputs, given expert demonstrations. Our method uses…

Robotics · Computer Science 2022-07-22 Gautam Salhotra , I-Chun Arthur Liu , Marcus Dominguez-Kuhne , Gaurav S. Sukhatme