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Capturing the shape and spatially-varying appearance (SVBRDF) of an object from images is a challenging task that has applications in both computer vision and graphics. Traditional optimization-based approaches often need a large number of…

计算机视觉与模式识别 · 计算机科学 2021-05-20 Mark Boss , Varun Jampani , Kihwan Kim , Hendrik P. A. Lensch , Jan Kautz

Relative camera pose estimation, i.e. estimating the translation and rotation vectors using a pair of images taken in different locations, is an important part of systems in augmented reality and robotics. In this paper, we present an…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Praveen Kumar Rajendran , Sumit Mishra , Luiz Felipe Vecchietti , Dongsoo Har

Many object pose estimation algorithms rely on the analysis-by-synthesis framework which requires explicit representations of individual object instances. In this paper we combine a gradient-based fitting procedure with a parametric neural…

计算机视觉与模式识别 · 计算机科学 2020-08-20 Xu Chen , Zijian Dong , Jie Song , Andreas Geiger , Otmar Hilliges

Understanding the 3D structure of a scene is of vital importance, when it comes to developing fully autonomous robots. To this end, we present a novel deep learning based framework that estimates depth, surface normals and surface curvature…

计算机视觉与模式识别 · 计算机科学 2017-06-26 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

Camera rotation estimation from a single image is a challenging task, often requiring depth data and/or camera intrinsics, which are generally not available for in-the-wild videos. Although external sensors such as inertial measurement…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Aalok Patwardhan , Callum Rhodes , Gwangbin Bae , Andrew J. Davison

This paper presents a method of estimating the geometry of a room and the 3D pose of objects from a single 360-degree panorama image. Assuming Manhattan World geometry, we formulate the task as a Bayesian inference problem in which we…

计算机视觉与模式识别 · 计算机科学 2016-10-03 Jiu Xu , Bjorn Stenger , Tommi Kerola , Tony Tung

Estimating relative camera poses between images has been a central problem in computer vision. Methods that find correspondences and solve for the fundamental matrix offer high precision in most cases. Conversely, methods predicting pose…

计算机视觉与模式识别 · 计算机科学 2024-03-06 Chris Rockwell , Nilesh Kulkarni , Linyi Jin , Jeong Joon Park , Justin Johnson , David F. Fouhey

We study the problem of symmetry detection of 3D shapes from single-view RGB-D images, where severely missing data renders geometric detection approach infeasible. We propose an end-to-end deep neural network which is able to predict both…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Yifei Shi , Junwen Huang , Hongjia Zhang , Xin Xu , Szymon Rusinkiewicz , Kai Xu

We introduce ViewNeRF, a Neural Radiance Field-based viewpoint estimation method that learns to predict category-level viewpoints directly from images during training. While NeRF is usually trained with ground-truth camera poses, multiple…

计算机视觉与模式识别 · 计算机科学 2022-12-02 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen

Humans can orient themselves in their 3D environments using simple 2D maps. Differently, algorithms for visual localization mostly rely on complex 3D point clouds that are expensive to build, store, and maintain over time. We bridge this…

Variational methods are widely applied to ill-posed inverse problems for they have the ability to embed prior knowledge about the solution. However, the level of performance of these methods significantly depends on a set of parameters,…

Visual localization is critical to many applications in computer vision and robotics. To address single-image RGB localization, state-of-the-art feature-based methods match local descriptors between a query image and a pre-built 3D model.…

计算机视觉与模式识别 · 计算机科学 2023-05-08 Shuzhe Wang , Zakaria Laskar , Iaroslav Melekhov , Xiaotian Li , Yi Zhao , Giorgos Tolias , Juho Kannala

6-DoF object pose estimation from a monocular image is challenging, and a post-refinement procedure is generally needed for high-precision estimation. In this paper, we propose a framework based on a recurrent neural network (RNN) for…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Yan Xu , Kwan-Yee Lin , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

In this paper, we propose a novel self-supervised learning model for estimating continuous ego-motion from video. Our model learns to estimate camera motion by watching RGBD or RGB video streams and determining translational and rotation…

计算几何 · 计算机科学 2018-06-28 Minhaeng Lee , Charless C. Fowlkes

We present a deep learning framework, called DuLa-Net, to predict Manhattan-world 3D room layouts from a single RGB panorama. To achieve better prediction accuracy, our method leverages two projections of the panorama at once, namely the…

计算机视觉与模式识别 · 计算机科学 2019-04-03 Shang-Ta Yang , Fu-En Wang , Chi-Han Peng , Peter Wonka , Min Sun , Hung-Kuo Chu

Recently, RGBD-based category-level 6D object pose estimation has achieved promising improvement in performance, however, the requirement of depth information prohibits broader applications. In order to relieve this problem, this paper…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Zhaoxin Fan , Zhenbo Song , Jian Xu , Zhicheng Wang , Kejian Wu , Hongyan Liu , Jun He

We propose an automatic method to infer high dynamic range illumination from a single, limited field-of-view, low dynamic range photograph of an indoor scene. In contrast to previous work that relies on specialized image capture, user…

计算机视觉与模式识别 · 计算机科学 2017-11-22 Marc-André Gardner , Kalyan Sunkavalli , Ersin Yumer , Xiaohui Shen , Emiliano Gambaretto , Christian Gagné , Jean-François Lalonde

This paper introduces a novel approach for image and video orientation estimation by leveraging depth distribution in natural images. The proposed method estimates the orientation based on the depth distribution across different quadrants…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Muhammad Z. Alam , Larry Stetsiuk , M. Umair Mukati , Zeeshan Kaleem

We introduce CenDerNet, a framework for 6D pose estimation from multi-view images based on center and curvature representations. Finding precise poses for reflective, textureless objects is a key challenge for industrial robotics. Our…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Peter De Roovere , Rembert Daems , Jonathan Croenen , Taoufik Bourgana , Joris de Hoog , Francis Wyffels

Visual re-localization means using a single image as input to estimate the camera's location and orientation relative to a pre-recorded environment. The highest-scoring methods are "structure based," and need the query camera's intrinsics…

计算机视觉与模式识别 · 计算机科学 2021-04-13 Mehmet Ozgur Turkoglu , Eric Brachmann , Konrad Schindler , Gabriel Brostow , Aron Monszpart