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Estimating and rectifying the orientation angle of any image is a pretty challenging task. Initial work used the hand engineering features for this purpose, where after the invention of deep learning using convolution-based neural network…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Subhadip Maji , Smarajit Bose

3D pose estimation from a single 2D image is an important and challenging task in computer vision with applications in autonomous driving, robot manipulation and augmented reality. Since 3D pose is a continuous quantity, a natural…

Computer Vision and Pattern Recognition · Computer Science 2018-05-10 Siddharth Mahendran , Haider Ali , Rene Vidal

Pose estimation is a widely explored problem, enabling many robotic tasks such as grasping and manipulation. In this paper, we tackle the problem of pose estimation for objects that exhibit rotational symmetry, which are common in man-made…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Enric Corona , Kaustav Kundu , Sanja Fidler

Over the last two decades, deep learning has transformed the field of computer vision. Deep convolutional networks were successfully applied to learn different vision tasks such as image classification, image segmentation, object detection…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Yoli Shavit , Ron Ferens

The objective of this work is to estimate 3D human pose from a single RGB image. Extracting image representations which incorporate both spatial relation of body parts and their relative depth plays an essential role in accurate3D pose…

Computer Vision and Pattern Recognition · Computer Science 2016-09-20 Mona Fathollahi Ghezelghieh , Rangachar Kasturi , Sudeep Sarkar

Recent advances in deep pose estimation models have proven to be effective in a wide range of applications such as health monitoring, sports, animations, and robotics. However, pose estimation models fail to generalize when facing images…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Vandad Davoodnia , Saeed Ghorbani , Ali Etemad

In this paper we tackle the problem of estimating the 3D pose of object instances, using convolutional neural networks. State of the art methods usually solve the challenging problem of regression in angle space indirectly, focusing on…

Computer Vision and Pattern Recognition · Computer Science 2016-07-11 Andreas Doumanoglou , Vassileios Balntas , Rigas Kouskouridas , Tae-Kyun Kim

We consider the problem of relative pose regression in visual relocalization. Recently, several promising approaches have emerged in this area. We claim that even though they demonstrate on the same datasets using the same split to train…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Amir Shalev , Omer Achrack , Brian Fulkerson , Ben-Zion Bobrovsky

In recent years, a deep learning framework has been widely used for object pose estimation. While quaternion is a common choice for rotation representation of 6D pose, it cannot represent an uncertainty of the observation. In order to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Hiroya Sato , Takuya Ikeda , Koichi Nishiwaki

In recent years, manifold learning has become increasingly popular as a tool for performing non-linear dimensionality reduction. This has led to the development of numerous algorithms of varying degrees of complexity that aim to recover man…

Machine Learning · Statistics 2013-06-03 Dominique Perraul-Joncas , Marina Meila

We address the problem of camera pose estimation in visual localization. Current regression-based methods for pose estimation are trained and evaluated scene-wise. They depend on the coordinate frame of the training dataset and show a low…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Boris Chidlovskii , Assem Sadek

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 recent years, a plethora of diverse methods have been proposed for 3D pose estimation. Among these, self-attention mechanisms and graph convolutions have both been proven to be effective and practical methods. Recognizing the strengths…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Sihan Wen , Xiantan Zhu , Zhiming Tan

Heatmap regression has been used for landmark localization for quite a while now. Most of the methods use a very deep stack of bottleneck modules for heatmap classification stage, followed by heatmap regression to extract the keypoints. In…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Amit Kumar , Rama Chellappa

Estimating the pose of an object from a monocular image is an inverse problem fundamental in computer vision. The ill-posed nature of this problem requires incorporating deformation priors to solve it. In practice, many materials do not…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Oriol Barbany , Adrià Colomé , Carme Torras

This paper presents an innovative deep learning pipeline which estimates the relative pose of a spacecraft by incorporating the temporal information from a rendezvous sequence. It leverages the performance of long short-term memory (LSTM)…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Duarte Rondao , Nabil Aouf , Mark A. Richardson

Purpose: Accurate estimation of the position and orientation (pose) of surgical instruments is crucial for delicate minimally invasive temporal bone surgery. Current techniques lack in accuracy and/or line-of-sight constraints (conventional…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 David Kügler , Jannik Sehring , Andrei Stefanov , Igor Stenin , Julia Kristin , Thomas Klenzner , Jörg Schipper , Anirban Mukhopadhyay

Articulated hand pose estimation plays an important role in human-computer interaction. Despite the recent progress, the accuracy of existing methods is still not satisfactory, partially due to the difficulty of embedded high-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2016-12-28 Liuhao Ge , Hui Liang , Junsong Yuan , Daniel Thalmann

Most modern image-based 6D object pose estimation methods learn to predict 2D-3D correspondences, from which the pose can be obtained using a PnP solver. Because of the non-differentiable nature of common PnP solvers, these methods are…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Fulin Liu , Yinlin Hu , Mathieu Salzmann

This paper proposes a new method for rigid body pose estimation based on spectrahedral representations of the tautological orbitopes of $SE(2)$ and $SE(3)$. The approach can use dense point cloud data from stereo vision or an RGB-D sensor…

Computer Vision and Pattern Recognition · Computer Science 2014-04-08 Matanya B. Horowitz , Nikolai Matni , Joel W. Burdick