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We present a self-supervised deep pose correction (DPC) network that applies pose corrections to a visual odometry estimator to improve its accuracy. Instead of regressing inter-frame pose changes directly, we build on prior work that uses…

Robotics · Computer Science 2020-10-16 Brandon Wagstaff , Valentin Peretroukhin , Jonathan Kelly

In this paper, we introduce a novel RGB-D based relative pose estimation approach that is suitable for small-overlapping or non-overlapping scans and can output multiple relative poses. Our method performs scene completion and matches the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Zhenpei Yang , Siming Yan , Qixing Huang

The key challenge in learning dense correspondences lies in the lack of ground-truth matches for real image pairs. While photometric consistency losses provide unsupervised alternatives, they struggle with large appearance changes, which…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Prune Truong , Martin Danelljan , Fisher Yu , Luc Van Gool

We present a novel 3D pose refinement approach based on differentiable rendering for objects of arbitrary categories in the wild. In contrast to previous methods, we make two main contributions: First, instead of comparing real-world images…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Alexander Grabner , Yaming Wang , Peizhao Zhang , Peihong Guo , Tong Xiao , Peter Vajda , Peter M. Roth , Vincent Lepetit

Reliable and stable 6D pose estimation of uncooperative space objects plays an essential role in on-orbit servicing and debris removal missions. Considering that the pose estimator is sensitive to background interference, this paper…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Shunli Wang , Shuaibing Wang , Bo Jiao , Dingkang Yang , Liuzhen Su , Peng Zhai , Chixiao Chen , Lihua Zhang

In this paper, we aim at establishing accurate dense correspondences between a pair of images with overlapping field of view under challenging illumination variation, viewpoint changes, and style differences. Through an extensive ablation…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Georgi Tinchev , Shuda Li , Kai Han , David Mitchell , Rigas Kouskouridas

Estimating the 6D pose of objects accurately, quickly, and robustly remains a difficult task. However, recent methods for directly regressing poses from RGB images using dense features have achieved state-of-the-art results. Stereo vision,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Thomas Pöllabauer , Jan Emrich , Volker Knauthe , Arjan Kuijper

State-of-the-art single depth image-based 3D hand pose estimation methods are based on dense predictions, including voxel-to-voxel predictions, point-to-point regression, and pixel-wise estimations. Despite the good performance, those…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Linpu Fang , Xingyan Liu , Li Liu , Hang Xu , Wenxiong Kang

In this paper, we introduce neural texture learning for 6D object pose estimation from synthetic data and a few unlabelled real images. Our major contribution is a novel learning scheme which removes the drawbacks of previous works, namely…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Hanzhi Chen , Fabian Manhardt , Nassir Navab , Benjamin Busam

Most recent 6D pose estimation frameworks first rely on a deep network to establish correspondences between 3D object keypoints and 2D image locations and then use a variant of a RANSAC-based Perspective-n-Point (PnP) algorithm. This…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Yinlin Hu , Pascal Fua , Wei Wang , Mathieu Salzmann

Establishing robust and accurate correspondences is a fundamental backbone to many computer vision algorithms. While recent learning-based feature matching methods have shown promising results in providing robust correspondences under…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Hugo Germain , Guillaume Bourmaud , Vincent Lepetit

We propose an approach to predict the 3D shape and pose for the objects present in a scene. Existing learning based methods that pursue this goal make independent predictions per object, and do not leverage the relationships amongst them.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 Nilesh Kulkarni , Ishan Misra , Shubham Tulsiani , Abhinav Gupta

Big neural networks trained on large datasets have advanced the state-of-the-art for a large variety of challenging problems, improving performance by a large margin. However, under low memory and limited computational power constraints,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Adrian Bulat , Georgios Tzimiropoulos , Jean Kossaifi , Maja Pantic

This paper introduces key machine learning operations that allow the realization of robust, joint 6D pose estimation of multiple instances of objects either densely packed or in unstructured piles from RGB-D data. The first objective is to…

Robotics · Computer Science 2019-10-14 Chaitanya Mitash , Bowen Wen , Kostas Bekris , Abdeslam Boularias

As demand for robotics manipulation application increases, accurate vision-based 6D pose estimation becomes essential for autonomous operations. Convolutional Neural Networks (CNNs) based approaches for pose estimation have been previously…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Mahmoud Abdulsalam , Nabil Aouf

We propose a new deep learning based approach for camera relocalization. Our approach localizes a given query image by using a convolutional neural network (CNN) for first retrieving similar database images and then predicting the relative…

Computer Vision and Pattern Recognition · Computer Science 2017-08-02 Zakaria Laskar , Iaroslav Melekhov , Surya Kalia , Juho Kannala

The task of estimating the 6D pose of an object from RGB images can be broken down into two main steps: an initial pose estimation step, followed by a refinement procedure to correctly register the object and its observation. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Stefan Stevsic , Otmar Hilliges

This paper presents a new system to obtain dense object reconstructions along with 6-DoF poses from a single image. Geared towards high fidelity reconstruction, several recent approaches leverage implicit surface representations and deep…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Aniket Pokale , Aditya Aggarwal , K. Madhava Krishna

Detecting objects and estimating their pose remains as one of the major challenges of the computer vision research community. There exists a compromise between localizing the objects and estimating their viewpoints. The detector ideally…

Computer Vision and Pattern Recognition · Computer Science 2018-10-08 Daniel Oñoro-Rubio , Roberto J. López-Sastre , Carolina Redondo-Cabrera , Pedro Gil-Jiménez

Most recent approaches to monocular 3D pose estimation rely on Deep Learning. They either train a Convolutional Neural Network to directly regress from image to 3D pose, which ignores the dependencies between human joints, or model these…

Computer Vision and Pattern Recognition · Computer Science 2016-05-18 Bugra Tekin , Isinsu Katircioglu , Mathieu Salzmann , Vincent Lepetit , Pascal Fua