Results 21 to 30 of about 121,669 (297)

A feedforward-moment-gyro-control for positioning wirelessly light-source and wireless- camera in laparoscopic instruments

open access: yesRevista de Ciencias Tecnológicas, 2018
This article presents a gyroscopic mechatronic system, which helps the laparoscopic surgeon to wirelessly control the zoom and panoramic position of a camera and a light source, adapted to a manipulator for minimally invasive surgery.
José Torres-Ventura   +4 more
doaj   +1 more source

Mechatronic design of the Twente humanoid head [PDF]

open access: yes, 2010
This paper describes the mechatronic design of the Twente humanoid head, which has been realized in the purpose of having a research platform for human-machine interaction.
Brouwer, Dannis M.   +4 more
core   +4 more sources

A Tilt Receiver Correction Method for Visible Light Positioning Using Machine Learning Method

open access: yesIEEE Photonics Journal, 2018
In recent years, a visible light positioning (VLP) technology based on complementary metal-oxide-semiconductor sensors has been widely studied due to its high precision and high robustness. However, the existing VLP algorithm based on image sensors often
Tao Yuan   +4 more
doaj   +1 more source

RESEARCH ON THE KEY TECHNOLOGY OF UAV IN THE ACCURACY ASSESSMENT OF LAND COVER CLASSIFICATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
This paper uses UAV low-altitude aerial photography technology, equipped with orthophoto camera, tilt camera and LiDAR camera, to obtain and process high-precision evaluation data, which is used to evaluate the correctness of land cover classification ...
W. Gao   +5 more
doaj   +1 more source

Tilting Optimization of Fixed Stereovision Cameras

open access: yesProcedia Engineering, 2012
AbstractThe article describes a stereoscopic camera system based on a pair of separate cameras. The cameras are stationary and tilted together. The value of their tilting angle is derived in regards to their utilization of the chip area. By optimizing tilting we can maximally utilize the chip area, without the unused parts.
Novak, Petr   +3 more
openaire   +1 more source

Cooperative Target Tracking by Multiagent Camera Sensor Networks via Gaussian Process

open access: yesIEEE Access, 2022
In this paper, we present learning-based robust cooperative control for camera sensor networks. The dynamics of each camera agent with the pan and tilt mechanism is modeled by the Euler-Lagrange equation.
Takashi Adachi   +2 more
doaj   +1 more source

CameraTransform: A Python package for perspective corrections and image mapping

open access: yesSoftwareX, 2019
Camera images and video recordings are simple and non-invasive tools to investigate animals in their natural habitat. Quantitative evaluations, however, often require an exact reconstruction of object positions, sizes, and distances in the image.
Richard C. Gerum   +6 more
doaj   +1 more source

Monitoring of excessive deformation of steel structure Extra-High Voltage pylons [PDF]

open access: yes, 2017
Reliability and security of a power transmission depends on the state of the power grid and mainly on the state of the Extra-High Voltage pylons. The paper deals with deformation analysis of existing steel structure of selected Extra-High Voltage pylons ...
Hendrych, Jakub   +4 more
core   +2 more sources

Autonomous Cargo Transport System for an Unmanned Aerial Vehicle, using Visual Servoing [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2009
This paper presents the design and testing of a system for autonomous tracking, pickup, and delivery of cargo via an unmanned helicopter. The tracking system uses a visual servoing algorithm and is tested using open loop velocity control of a six degree ...
Noah Kuntz, Paul Oh
doaj  

Measurement of Three-Dimensional Structural Displacement Using a Hybrid Inertial Vision-Based System

open access: yesSensors, 2019
Accurate three-dimensional displacement measurements of bridges and other structures have received significant attention in recent years. The main challenges of such measurements include the cost and the need for a scalable array of instrumentation. This
Xinxiang Zhang   +3 more
doaj   +1 more source

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