Results 31 to 40 of about 20,190 (304)

An Accurate and Stable Pose Estimation Method Based on Geometry for Port Hoisting Machinery

open access: yesIEEE Access, 2019
As a visual measurement method, photogrammetry is widely used in engineering measurement fields. Photogrammetry must first complete camera pose estimation.
Qi Wang, Zhangyan Zhao
doaj   +1 more source

Real-time camera pose estimation for sports fields [PDF]

open access: yesMachine Vision and Applications, 2020
Given an image sequence featuring a portion of a sports field filmed by a moving and uncalibrated camera, such as the one of the smartphones, our goal is to compute automatically in real time the focal length and extrinsic camera parameters for each image in the sequence without using a priori knowledges of the position and orientation of the camera ...
Leonardo Citraro   +8 more
openaire   +2 more sources

Validity of AI-Based Gait Analysis for Simultaneous Measurement of Bilateral Lower Limb Kinematics Using a Single Video Camera

open access: yesSensors, 2023
Accuracy validation of gait analysis using pose estimation with artificial intelligence (AI) remains inadequate, particularly in objective assessments of absolute error and similarity of waveform patterns.
Takumi Ino   +6 more
doaj   +1 more source

Hybrid Camera Pose Estimation With Online Partitioning for SLAM [PDF]

open access: yesIEEE Robotics and Automation Letters, 2020
This paper presents a hybrid real-time camera pose estimation framework with a novel partitioning scheme and introduces motion averaging to monocular Simultaneous Localization and Mapping (SLAM) systems. Breaking through the limitations of fixed-size temporal partitioning in many conventional SLAM pipelines, our approach significantly improves the ...
Xinyi Li 0004, Haibin Ling
openaire   +2 more sources

EKFPnP: extended Kalman filter for camera pose estimation in a sequence of images

open access: yesIET Image Processing, 2020
In real‐world applications the perspective‐n‐point (PnP) problem should generally be applied to a sequence of images which a set of drift‐prone features are tracked over time.
Mohammad Amin Mehralian, Mohsen Soryani
doaj   +1 more source

A sparsity-driven approach to multi-camera tracking in visual sensor networks [PDF]

open access: yes, 2013
In this paper, a sparsity-driven approach is presented for multi-camera tracking in visual sensor networks (VSNs). VSNs consist of image sensors, embedded processors and wireless transceivers which are powered by batteries. Since the energy and bandwidth
Çetin, Müjdat   +3 more
core   +1 more source

Event-Based Camera Tracker by ∇tNeRF

open access: yesIEEE Access, 2023
When a camera travels across a 3D world, only a fraction of pixel value changes; an event-based camera observes the change as sparse events. How can we utilize sparse events for efficient recovery of the camera pose?
Mana Masuda   +2 more
doaj   +1 more source

Efficient Camera-Based Pose Estimation for Real-Time Applications

open access: yes, 2009
Accurate online localization is crucial for mobile robotics. In this paper, we describe a real-time image-based localization technique, which is based on a single calibrated camera.
Elmar Mair   +7 more
core   +1 more source

Accurate Line-Based Relative Pose Estimation With Camera Matrices

open access: yesIEEE Access, 2020
While most monocular structure-from-motion frameworks rely on sparse keypoints, it has long been acknowledged that lines represent an alternative, higher-order feature with high accuracy, repeatability, and abundant availability in man-made environments.
Peihong Yu   +4 more
doaj   +1 more source

Dynamic fiducial markers for camera-based pose estimation [PDF]

open access: yes, 2021
This dissertation introduces new techniques that increase the accuracy of camera-based pose estimation using fiducial markers. The problem of camera-based pose estimation involves finding a camera's pose relative to some coordinate system by detecting ...
Acuña, Raul
core   +1 more source

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