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Visual localization, i.e., determining the position and orientation of a vehicle with respect to a map, is a key problem in autonomous driving. We present a multicamera visual inertial localization algorithm for large scale environments. To…

Robotics · Computer Science 2019-05-16 Marcel Geppert , Peidong Liu , Zhaopeng Cui , Marc Pollefeys , Torsten Sattler

Visual navigation and three-dimensional (3D) scene reconstruction are essential for robotics to interact with the surrounding environment. Large-scale scenes and critical camera motions are great challenges facing the research community to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Qi Cai , Lilian Zhang , Yuanxin Wu , Wenxian Yu , Dewen Hu

Estimating 3D bounding boxes from monocular images is an essential component in autonomous driving, while accurate 3D object detection from this kind of data is very challenging. In this work, by intensive diagnosis experiments, we quantify…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Xinzhu Ma , Yinmin Zhang , Dan Xu , Dongzhan Zhou , Shuai Yi , Haojie Li , Wanli Ouyang

Existing computer vision and object detection methods strongly rely on neural networks and deep learning. This active research area is used for applications such as autonomous driving, aerial photography, protection, and monitoring.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Imran Khan Mirani , Chen Tianhua , Malak Abid Ali Khan , Syed Muhammad Aamir , Waseef Menhaj

We propose a Convolutional Neural Network (CNN)-based model "RotationNet," which takes multi-view images of an object as input and jointly estimates its pose and object category. Unlike previous approaches that use known viewpoint labels…

Computer Vision and Pattern Recognition · Computer Science 2018-03-26 Asako Kanezaki , Yasuyuki Matsushita , Yoshifumi Nishida

Neural implicit representations such as NeRF have revolutionized 3D scene representation with photo-realistic quality. However, existing methods for visual localization within NeRF representations suffer from inefficiency and scalability…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Huaiji Zhou , Bing Wang , Changhao Chen

Recent interest in on-orbit servicing and Active Debris Removal (ADR) missions have driven the need for technologies to enable non-cooperative rendezvous manoeuvres. Such manoeuvres put heavy burden on the perception capabilities of a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Maxwell Hogan , Duarte Rondao , Nabil Aouf , Olivier Dubois-Matra

In convolutional neural networks (CNNs), the filter grouping in convolution layers is known to be useful to reduce the network parameter size. In this paper, we propose a new logarithmic filter grouping which can capture the nonlinearity of…

Computer Vision and Pattern Recognition · Computer Science 2017-09-15 Tae Kwan Lee , Wissam J. Baddar , Seong Tae Kim , Yong Man Ro

We propose a novel approach to jointly perform 3D shape retrieval and pose estimation from monocular images.In order to make the method robust to real-world image variations, e.g. complex textures and backgrounds, we learn an embedding…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Kyaw Zaw Lin , Weipeng Xu , Qianru Sun , Christian Theobalt , Tat-Seng Chua

Image-based camera relocalization is an important problem in computer vision and robotics. Recent works utilize convolutional neural networks (CNNs) to regress for pixels in a query image their corresponding 3D world coordinates in the…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Xiaotian Li , Juha Ylioinas , Jakob Verbeek , Juho Kannala

In this paper we tackle the problem of instance-level segmentation and depth ordering from a single monocular image. Towards this goal, we take advantage of convolutional neural nets and train them to directly predict instance-level…

Computer Vision and Pattern Recognition · Computer Science 2015-12-21 Ziyu Zhang , Alexander G. Schwing , Sanja Fidler , Raquel Urtasun

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…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Yan Xu , Kwan-Yee Lin , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

Conventional autonomous Unmanned Air Vehicle (abbr. UAV) autopilot systems use Global Navigation Satellite System (abbr. GNSS) signal for navigation. However, autopilot systems fail to navigate due to lost or jammed GNSS signal. To solve…

Robotics · Computer Science 2019-10-29 Rokas Jurevičius , Virginijus Marcinkevičius , Justinas Šeibokas

Normalization layers have been shown to improve convergence in deep neural networks, and even add useful inductive biases. In many vision applications the local spatial context of the features is important, but most common normalization…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Anthony Ortiz , Caleb Robinson , Dan Morris , Olac Fuentes , Christopher Kiekintveld , Md Mahmudulla Hassan , Nebojsa Jojic

Deep learning has shown to be effective for robust and real-time monocular image relocalisation. In particular, PoseNet is a deep convolutional neural network which learns to regress the 6-DOF camera pose from a single image. It learns to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Alex Kendall , Roberto Cipolla

Place recognition is one of the most fundamental topics in computer vision and robotics communities, where the task is to accurately and efficiently recognize the location of a given query image. Despite years of wisdom accumulated in this…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Zhiqiang Zeng , Jian Zhang , Xiaodong Wang , Yuming Chen , Chaoyang Zhu

Recent advances in machine learning have greatly benefited object detection and 6D pose estimation. However, textureless and metallic objects still pose a significant challenge due to few visual cues and the texture bias of CNNs. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Peter Hönig , Stefan Thalhammer , Jean-Baptiste Weibel , Matthias Hirschmanner , Markus Vincze

This paper introduces an approach to produce accurate 3D detection boxes for objects on the ground using single monocular images. We do so by merging 2D visual cues, 3D object dimensions, and ground plane constraints to produce boxes that…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Akshay Rangesh , Mohan M. Trivedi

Deep convolutional neural networks (CNN) have revolutionized various fields of vision research and have seen unprecedented adoption for multiple tasks such as classification, detection, captioning, etc. However, they offer little…

Computer Vision and Pattern Recognition · Computer Science 2018-12-13 Konda Reddy Mopuri , Utsav Garg , R. Venkatesh Babu

A crucial function for automated vehicle technologies is accurate localization. Lane-level accuracy is not readily available from low-cost Global Navigation Satellite System (GNSS) receivers because of factors such as multipath error and…

Systems and Control · Computer Science 2017-03-28 Macheng Shen , Ding Zhao , Jing Sun , Huei Peng
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