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In this paper, we propose SparseDet for end-to-end 3D object detection from point cloud. Existing works on 3D object detection rely on dense object candidates over all locations in a 3D or 2D grid following the mainstream methods for object…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Jianhong Han , Zhaoyi Wan , Zhe Liu , Jie Feng , Bingfeng Zhou

Estimating the 6-DoF pose of a rigid object from a single RGB image is a crucial yet challenging task. Recent studies have shown the great potential of dense correspondence-based solutions, yet improvements are still needed to reach…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Ruyi Lian , Haibin Ling

Understanding the geometry and pose of objects in 2D images is a fundamental necessity for a wide range of real world applications. Driven by deep neural networks, recent methods have brought significant improvements to object pose…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Jogendra Nath Kundu , Rahul M. V. , Aditya Ganeshan , R. Venkatesh Babu

This paper addresses the problem of vehicle-mounted camera localization by matching a ground-level image with an overhead-view satellite map. Existing methods often treat this problem as cross-view image retrieval, and use learned deep…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Yujiao Shi , Hongdong Li

It is well known that visual SLAM systems based on dense matching are locally accurate but are also susceptible to long-term drift and map corruption. In contrast, feature matching methods can achieve greater long-term consistency but can…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Xingrui Yang , Yuhang Ming , Zhaopeng Cui , Andrew Calway

Establishing a sparse set of keypoint correspon dences between images is a fundamental task in many computer vision pipelines. Often, this translates into a computationally expensive nearest neighbor search, where every keypoint descriptor…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Emanuele Santellani , Christian Sormann , Mattia Rossi , Andreas Kuhn , Friedrich Fraundorfer

Recovering camera poses from a set of images is a foundational task in 3D computer vision, which powers key applications such as 3D scene/object reconstructions. Classic methods often depend on feature correspondence, such as keypoints,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Hao Tang , Weiyao Wang , Pierre Gleize , Matt Feiszli

Knowledge about the locations of keypoints of an object in an image can assist in fine-grained classification and identification tasks, particularly for the case of objects that exhibit large variations in poses that greatly influence their…

Computer Vision and Pattern Recognition · Computer Science 2021-01-21 Olga Moskvyak , Frederic Maire , Feras Dayoub , Mahsa Baktashmotlagh

Human pose estimation is an important topic in computer vision with many applications including gesture and activity recognition. However, pose estimation from image is challenging due to appearance variations, occlusions, clutter…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Lipeng Ke , Ming-Ching Chang , Honggang Qi , Siwei Lyu

To advance the state of the art in the creation of 3D foundation models, this paper introduces the ConDense framework for 3D pre-training utilizing existing pre-trained 2D networks and large-scale multi-view datasets. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Xiaoshuai Zhang , Zhicheng Wang , Howard Zhou , Soham Ghosh , Danushen Gnanapragasam , Varun Jampani , Hao Su , Leonidas Guibas

Dense captioning is a newly emerging computer vision topic for understanding images with dense language descriptions. The goal is to densely detect visual concepts (e.g., objects, object parts, and interactions between them) from images,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-09 Linjie Yang , Kevin Tang , Jianchao Yang , Li-Jia Li

In this paper, we proposed a new deep learning based dense monocular SLAM method. Compared to existing methods, the proposed framework constructs a dense 3D model via a sparse to dense mapping using learned surface normals. With single view…

Robotics · Computer Science 2019-03-25 Jiexiong Tang , John Folkesson , Patric Jensfelt

The bundle of geometry and appearance in computer vision has proven to be a promising solution for robots across a wide variety of applications. Stereo cameras and RGB-D sensors are widely used to realise fast 3D reconstruction and…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Xuanpeng Li , Rachid Belaroussi

Directly inspired by findings in biological vision, high-dimensional hypercolumns are feature vectors built by concatenating multi-scale activations of convolutional neural networks for a single image pixel location. Together with powerful…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Julia Dietlmeier , Vayangi Ganepola , Oluwabukola G. Adegboro , Mayug Maniparambil , Claudia Mazo , Noel E. O'Connor

A key technical challenge in performing 6D object pose estimation from RGB-D image is to fully leverage the two complementary data sources. Prior works either extract information from the RGB image and depth separately or use costly…

Computer Vision and Pattern Recognition · Computer Science 2019-01-16 Chen Wang , Danfei Xu , Yuke Zhu , Roberto Martín-Martín , Cewu Lu , Li Fei-Fei , Silvio Savarese

We consider a single-query 6-DoF camera pose estimation with reference images and a point cloud, i.e. the problem of estimating the position and orientation of a camera by using reference images and a point cloud. In this work, we perform a…

Computer Vision and Pattern Recognition · Computer Science 2018-08-20 Junsheng Fu , Said Pertuz , Jiri Matas , Joni-Kristian Kämäräinen

Deep Convolutional Neural Networks (CNNs) have been successfully deployed on robots for 6-DoF object pose estimation through visual perception. However, obtaining labeled data on a scale required for the supervised training of CNNs is a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Rohan Pratap Singh , Mehdi Benallegue , Yusuke Yoshiyasu , Fumio Kanehiro

High-quality 3D reconstructions from endoscopy video play an important role in many clinical applications, including surgical navigation where they enable direct video-CT registration. While many methods exist for general multi-view 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-03-30 Xingtong Liu , Yiping Zheng , Benjamin Killeen , Masaru Ishii , Gregory D. Hager , Russell H. Taylor , Mathias Unberath

In this paper, we propose an end-to-end framework that jointly learns keypoint detection, descriptor representation and cross-frame matching for the task of image-based 3D localization. Prior art has tackled each of these components…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Xiangyu Xu , Li Guan , Enrique Dunn , Haoxiang Li , Gang Hua

We present a real-time approach for image-based localization within large scenes that have been reconstructed offline using structure from motion (Sfm). From monocular video, our method continuously computes a precise 6-DOF camera pose, by…

Computer Vision and Pattern Recognition · Computer Science 2015-03-20 Hyon Lim , Sudipta Sinha , Michael Cohen , Matt Uyttendaele
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