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We present a technique for estimating the relative 3D rotation of an RGB image pair in an extreme setting, where the images have little or no overlap. We observe that, even when images do not overlap, there may be rich hidden cues as to…

计算机视觉与模式识别 · 计算机科学 2021-07-20 Ruojin Cai , Bharath Hariharan , Noah Snavely , Hadar Averbuch-Elor

In monocular 3D human pose estimation a common setup is to first detect 2D positions and then lift the detection into 3D coordinates. Many algorithms suffer from overfitting to camera positions in the training set. We propose a siamese…

计算机视觉与模式识别 · 计算机科学 2019-02-19 Márton Véges , Viktor Varga , András Lőrincz

This paper proposes a new and efficient method to estimate 6-DoF ego-states: attitudes and positions in real time. The proposed method extract information of ego-states by observing a feature called "TROVE" (Three Rays and One VErtex).…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Yuance Liu , Michael Z. Q. Chen

6-DoF pose estimation is an essential component of robotic manipulation pipelines. However, it usually suffers from a lack of generalization to new instances and object types. Most widely used methods learn to infer the object pose in a…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Vaibhav Saxena , Kamal Rahimi Malekshan , Linh Tran , Yotto Koga

Most consumer cameras use rolling shutter (RS) exposure, which often leads to distortions such as skew and jelly effects. These videos are further limited by bandwidth and frame rate constraints. In this paper, we explore the potential of…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Yunfan Lu , Guoqiang Liang , Yiran Shen , Lin Wang

We present an algorithm to estimate the rotation pole of a principal-axis rotator using silhouette images collected from multiple camera poses. First, a set of images is stacked to form a single silhouette-stack image, where the object's…

计算机视觉与模式识别 · 计算机科学 2025-02-06 Jacopo Villa , Jay W. McMahon , Issa A. D. Nesnas

Given two images, we can estimate the relative camera pose between them by establishing image-to-image correspondences. Usually, correspondences are 2D-to-2D and the pose we estimate is defined only up to scale. Some applications, aiming at…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Axel Barroso-Laguna , Sowmya Munukutla , Victor Adrian Prisacariu , Eric Brachmann

Camera pose estimation is a key step in standard 3D reconstruction pipelines that operate on a dense set of images of a single object or scene. However, methods for pose estimation often fail when only a few images are available because…

计算机视觉与模式识别 · 计算机科学 2022-12-01 Samarth Sinha , Jason Y. Zhang , Andrea Tagliasacchi , Igor Gilitschenski , David B. Lindell

The task of estimating the 6D pose of an object from RGB images can be broken down into two main steps: an initial pose estimation step, followed by a refinement procedure to correctly register the object and its observation. In this paper,…

计算机视觉与模式识别 · 计算机科学 2021-01-06 Stefan Stevsic , Otmar Hilliges

We propose an automatic method for pose and motion estimation against a ground surface for a ground-moving robot-mounted monocular camera. The framework adopts a semi-dense approach that benefits from both a feature-based method and an…

机器人学 · 计算机科学 2023-03-10 Masahiro Hirano , Taku Senoo , Norimasa Kishi , Masatoshi Ishikawa

We propose a single-stage, category-level 6-DoF pose estimation algorithm that simultaneously detects and tracks instances of objects within a known category. Our method takes as input the previous and current frame from a monocular RGB…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Yunzhi Lin , Jonathan Tremblay , Stephen Tyree , Patricio A. Vela , Stan Birchfield

We focus on the challenging problem of efficient mouse 3D pose estimation based on static images, and especially single depth images. We introduce an approach to discriminatively train the split nodes of trees in random forest to improve…

计算机视觉与模式识别 · 计算机科学 2015-11-25 Ashwin Nanjappa , Li Cheng , Wei Gao , Chi Xu , Adam Claridge-Chang , Zoe Bichler

We seek to predict the 6 degree-of-freedom (6DoF) pose of a query photograph with respect to a large indoor 3D map. The contributions of this work are three-fold. First, we develop a new large-scale visual localization method targeted for…

计算机视觉与模式识别 · 计算机科学 2018-04-10 Hajime Taira , Masatoshi Okutomi , Torsten Sattler , Mircea Cimpoi , Marc Pollefeys , Josef Sivic , Tomas Pajdla , Akihiko Torii

We propose a new approach for combining deep-learned non-metric monocular depth with affine correspondences (ACs) to estimate the relative pose of two calibrated cameras from a single correspondence. Considering the depth information and…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Ivan Eichhardt , Daniel Barath

A simple method for synchronization of video streams with a precision better than one millisecond is proposed. The method is applicable to any number of rolling shutter cameras and when a few photographic flashes or other abrupt lighting…

计算机视觉与模式识别 · 计算机科学 2020-08-10 Matej Smid , Jiri Matas

In this paper, we introduce a novel single shot approach for 6D object pose estimation of rigid objects based on depth images. For this purpose, a fully convolutional neural network is employed, where the 3D input data is spatially…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Kilian Kleeberger , Marco F. Huber

Camera-to-robot calibration is crucial for vision-based robot control and requires effort to make it accurate. Recent advancements in markerless pose estimation methods have eliminated the need for time-consuming physical setups for…

机器人学 · 计算机科学 2024-09-17 Jingpei Lu , Zekai Liang , Tristin Xie , Florian Ritcher , Shan Lin , Sainan Liu , Michael C. Yip

We address the problem of optical decalibration in mobile stereo camera setups, especially in context of autonomous vehicles. In real world conditions, an optical system is subject to various sources of anticipated and unanticipated…

计算机视觉与模式识别 · 计算机科学 2020-01-16 Jon Muhovič , Janez Perš

Many robotics and industry applications have a high demand for the capability to estimate the 6D pose of novel objects from the cluttered scene. However, existing classic pose estimation methods are object-specific, which can only handle…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Jianqiu Chen , Zikun Zhou , Mingshan Sun , Tianpeng Bao , Rui Zhao , Liwei Wu , Zhenyu He

We propose a single-shot approach to determining 6-DoF pose of an object with available 3D computer-aided design (CAD) model from a single RGB image. Our method, dubbed MRC-Net, comprises two stages. The first performs pose classification…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Yuelong Li , Yafei Mao , Raja Bala , Sunil Hadap