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Sensitivity to severe occlusion and large view angles limits the usage scenarios of the existing monocular 3D dense face alignment methods. The state-of-the-art 3DMM-based method, directly regresses the model's coefficients, underutilizing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-22 Heyuan Li , Bo Wang , Yu Cheng , Mohan Kankanhalli , Robby T. Tan

Both the Dictionary Learning (DL) and Convolutional Neural Networks (CNN) are powerful image representation learning systems based on different mechanisms and principles, however whether we can seamlessly integrate them to improve the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-16 Zhao Zhang , Yulin Sun , Yang Wang , Zhengjun Zha , Shuicheng Yan , Meng Wang

It is difficult to precisely annotate object instances and their semantics in 3D space, and as such, synthetic data are extensively used for these tasks, e.g., category-level 6D object pose and size estimation. However, the easy annotations…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Jiehong Lin , Zewei Wei , Changxing Ding , Kui Jia

Estimating 2D-3D correspondences between RGB images and 3D space is a fundamental problem in 6D object pose estimation. Recent pose estimators use dense correspondence maps and Point-to-Point algorithms to estimate object poses. The…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Peter Hönig , Stefan Thalhammer , Markus Vincze

Pose registration is critical in vision and robotics. This paper focuses on the challenging task of initialization-free pose registration up to 7DoF for homogeneous and heterogeneous measurements. While recent learning-based methods show…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Zexi Chen , Yiyi Liao , Haozhe Du , Haodong Zhang , Xuecheng Xu , Haojian Lu , Rong Xiong , Yue Wang

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

We present a minimalistic but effective neural network that computes dense facial correspondences in highly unconstrained RGB images. Our network learns a per-pixel flow and a matchability mask between 2D input photographs of a person and…

Computer Vision and Pattern Recognition · Computer Science 2017-09-05 Ronald Yu , Shunsuke Saito , Haoxiang Li , Duygu Ceylan , Hao Li

The goal of this work is to replace objects in an RGB-D scene with corresponding 3D models from a library. We approach this problem by first detecting and segmenting object instances in the scene using the approach from Gupta et al. [13].…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Saurabh Gupta , Pablo Arbeláez , Ross Girshick , Jitendra Malik

Recent methods for 6D pose estimation of objects assume either textured 3D models or real images that cover the entire range of target poses. However, it is difficult to obtain textured 3D models and annotate the poses of objects in real…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Kiru Park , Timothy Patten , Markus Vincze

Accurate 6D object pose estimation is vital for robotics, augmented reality, and scene understanding. For seen objects, high accuracy is often attainable via per-object fine-tuning but generalizing to unseen objects remains a challenge. To…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Sajjad Pakdamansavoji , Yintao Ma , Amir Rasouli , Tongtong Cao

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

We introduce a novel method for robust and accurate 3D object pose estimation from a single color image under large occlusions. Following recent approaches, we first predict the 2D projections of 3D points related to the target object and…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Markus Oberweger , Mahdi Rad , Vincent Lepetit

6D object pose estimation problem has been extensively studied in the field of Computer Vision and Robotics. It has wide range of applications such as robot manipulation, augmented reality, and 3D scene understanding. With the advent of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Negar Nejatishahidin , Pooya Fayyazsanavi

Image retrieval-based cross-view geo-localization (IRCVGL) aims to match images captured from significantly different viewpoints, such as satellite and street-level images. Existing methods predominantly rely on learning robust global…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Xianwei Cao , Dou Quan , Shuang Wang , Ning Huyan , Wei Wang , Yunan Li , Licheng Jiao

In this paper, a feature boosting network is proposed for estimating 3D hand pose and 3D body pose from a single RGB image. In this method, the features learned by the convolutional layers are boosted with a new long short-term…

Computer Vision and Pattern Recognition · Computer Science 2019-05-16 Jun Liu , Henghui Ding , Amir Shahroudy , Ling-Yu Duan , Xudong Jiang , Gang Wang , Alex C. Kot

We introduce a novel method for 3D object detection and pose estimation from color images only. We first use segmentation to detect the objects of interest in 2D even in presence of partial occlusions and cluttered background. By contrast…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Mahdi Rad , Vincent Lepetit

Tracking the 6D pose of objects in video sequences is important for robot manipulation. This task, however, introduces multiple challenges: (i) robot manipulation involves significant occlusions; (ii) data and annotations are troublesome…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Bowen Wen , Chaitanya Mitash , Baozhang Ren , Kostas E. Bekris

We present an approach for detecting and estimating the 3D poses of objects in images that requires only an untextured CAD model and no training phase for new objects. Our approach combines Deep Learning and 3D geometry: It relies on an…

Computer Vision and Pattern Recognition · Computer Science 2020-10-09 Giorgia Pitteri , Aurélie Bugeau , Slobodan Ilic , Vincent Lepetit

Category-level pose estimation is a challenging task with many potential applications in computer vision and robotics. Recently, deep-learning-based approaches have made great progress, but are typically hindered by the need for large…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Pengyuan Wang , Takuya Ikeda , Robert Lee , Koichi Nishiwaki

In this paper, we propose a two-stage depth ranking based method (DRPose3D) to tackle the problem of 3D human pose estimation. Instead of accurate 3D positions, the depth ranking can be identified by human intuitively and learned using the…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Min Wang , Xipeng Chen , Wentao Liu , Chen Qian , Liang Lin , Lizhuang Ma