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This paper addresses the problem of 3D human pose estimation from single images. While for a long time human skeletons were parameterized and fitted to the observation by satisfying a reprojection error, nowadays researchers directly use…

计算机视觉与模式识别 · 计算机科学 2019-03-13 Bastian Wandt , Bodo Rosenhahn

This work proposes a new end-to-end DCNN based approach for motion segmentation, especially for video sequences captured with such non-static cameras, called MOSNET. While other approaches focus on spatial or temporal context only, the…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Markus Bosch

Intraoperative tracking of surgical instruments is an inevitable task of computer-assisted surgery. An optical tracking system often fails to precisely reconstruct the dynamic location and pose of a surgical tool due to the acquisition…

机器人学 · 计算机科学 2020-12-23 Md Ashikuzzaman , Noushin Jafarpisheh , Sunil Rottoo , Pierre Brisson , Hassan Rivaz

We describe a data-driven method for inferring the camera viewpoints given multiple images of an arbitrary object. This task is a core component of classic geometric pipelines such as SfM and SLAM, and also serves as a vital pre-processing…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Jason Y. Zhang , Deva Ramanan , Shubham Tulsiani

We address the visual relocalization problem of predicting the location and camera orientation or pose (6DOF) of the given input scene. We propose a method based on how humans determine their location using the visible landmarks. We define…

计算机视觉与模式识别 · 计算机科学 2018-11-13 Soham Saha , Girish Varma , C. V. Jawahar

Kalman Filter (KF) is an optimal linear state prediction algorithm, with applications in fields as diverse as engineering, economics, robotics, and space exploration. Here, we develop an extension of the KF, called a Pathspace Kalman Filter…

机器学习 · 统计学 2024-04-03 Chaitra Agrahar , William Poole , Simone Bianco , Hana El-Samad

Camera pose estimation or camera relocalization is the centerpiece in numerous computer vision tasks such as visual odometry, structure from motion (SfM) and SLAM. In this paper we propose a neural network approach with a graph transformer…

计算机视觉与模式识别 · 计算机科学 2021-06-01 Xinyi Li , Haibin Ling

Pose-driven human-image animation diffusion models have shown remarkable capabilities in realistic human video synthesis. Despite the promising results achieved by previous approaches, challenges persist in achieving temporally consistent…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Jeongho Kim , Min-Jung Kim , Junsoo Lee , Jaegul Choo

The estimation of the camera poses associated with a set of images commonly relies on feature matches between the images. In contrast, we are the first to address this challenge by using objectness regions to guide the pose estimation…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Matteo Taiana , Matteo Toso , Stuart James , Alessio Del Bue

Providing a metric of uncertainty alongside a state estimate is often crucial when tracking a dynamical system. Classic state estimators, such as the Kalman filter (KF), provide a time-dependent uncertainty measure from knowledge of the…

信号处理 · 电气工程与系统科学 2022-02-10 Itzik Klein , Guy Revach , Nir Shlezinger , Jonas E. Mehr , Ruud J. G. van Sloun , Yonina. C. Eldar

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…

计算机视觉与模式识别 · 计算机科学 2018-03-26 Asako Kanezaki , Yasuyuki Matsushita , Yoshifumi Nishida

We propose a novel image based localization system using graph neural networks (GNN). The pretrained ResNet50 convolutional neural network (CNN) architecture is used to extract the important features for each image. Following, the extracted…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Ahmed Elmoogy , Xiaodai Dong , Tao Lu , Robert Westendorp , Kishore Reddy

Clinical outcome or severity prediction from medical images has largely focused on learning representations from single-timepoint or snapshot scans. It has been shown that disease progression can be better characterized by temporal imaging.…

图像与视频处理 · 电气工程与系统科学 2022-04-01 Aishik Konwer , Xuan Xu , Joseph Bae , Chao Chen , Prateek Prasanna

A major focus of current research on place recognition is visual localization for autonomous driving. In this scenario, as cameras will be operating continuously, it is realistic to expect videos as an input to visual localization…

计算机视觉与模式识别 · 计算机科学 2020-11-05 Anh-Dzung Doan , Yasir Latif , Tat-Jun Chin , Yu Liu , Shin-Fang Ch'ng , Thanh-Toan Do , Ian Reid

The work in this paper is driven by the question how to exploit the temporal cues available in videos for their accurate classification, and for human action recognition in particular? Thus far, the vision community has focused on…

计算机视觉与模式识别 · 计算机科学 2017-11-23 Ali Diba , Mohsen Fayyaz , Vivek Sharma , Amir Hossein Karami , Mohammad Mahdi Arzani , Rahman Yousefzadeh , Luc Van Gool

One-shot image classification aims to train image classifiers over the dataset with only one image per category. It is challenging for modern deep neural networks that typically require hundreds or thousands of images per class. In this…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Wanqi Xue , Wei Wang

We examine the problem of time delay estimation, or temporal calibration, in the context of multisensor data fusion. Differences in processing intervals and other factors typically lead to a relative delay between measurement updates from…

系统与控制 · 电气工程与系统科学 2021-11-18 Jonathan Kelly , Christopher Grebe , Matthew Giamou

In this paper, we introduce a variation of a state-of-the-art real-time tracker (CFNet), which adds to the original algorithm robustness to target loss without a significant computational overhead. The new method is based on the assumption…

计算机视觉与模式识别 · 计算机科学 2019-02-14 Alessandro Bay , Panagiotis Sidiropoulos , Eduard Vazquez , Michele Sasdelli

Popular research areas like autonomous driving and augmented reality have renewed the interest in image-based camera localization. In this work, we address the task of predicting the 6D camera pose from a single RGB image in a given 3D…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Eric Brachmann , Carsten Rother

Accurate estimation and prediction of trajectory is essential for the capture of any high speed target. In this paper, an extended Kalman filter (EKF) is used to track the target in the first loop of the trajectory to collect data points…