Results 91 to 100 of about 1,353 (200)

Autocalibration of a camera pair [PDF]

open access: yes, 2006
Given a pair of cameras with identical intrinsic parameters and known pixel shape, there exists a uniparametric set of possible 3D Euclidean reconstructions. We provide for this set a closed-form explicit parameterization. Therefore, given a single piece of data from the scene, the set of solutions can be efficiently ...
Ronda Prieto, José Ignacio   +1 more
openaire   +1 more source

A Method of Precise Auto-Calibration in a Micro-Electro-Mechanical System Accelerometer

open access: yesSensors
A novel design of a MEMS (Micro-Electromechanical System) capacitive accelerometer fabricated by surface micromachining, with a structure enabling precise auto-calibration during operation, is presented.
Sergiusz Łuczak   +2 more
doaj   +1 more source

Auto-Calibration and Fault Detection and Isolation of Skewed Redundant Accelerometers in Measurement While Drilling Systems

open access: yesSensors, 2018
The present study designed skewed redundant accelerometers for a Measurement While Drilling (MWD) tool and executed auto-calibration, fault diagnosis and isolation of accelerometers in this tool.
Seyed Mohsen Seyed Moosavi   +3 more
doaj   +1 more source

Autocalibration with the Minimum Number of Cameras with Known Pixel Shape [PDF]

open access: yes, 2014
In 3D reconstruction, the recovery of the calibration parameters of the cameras is paramount since it provides metric information about the observed scene, e.g., measures of angles and ratios of distances.
Ronda Prieto, José Ignacio   +2 more
core   +1 more source

Autocalibration itérative de caméras à partir de structures planes [PDF]

open access: yes, 2003
National audienceIn this paper we present an iterative algorithm for camera autocalibration from five or more views of an unknow planar scene. Although our method work provided five views, we aim the particular case of "real time video" autocalibration ...
Sturm, Peter   +2 more
core  

Capabilities and limitations of mono-camera pedestrian-based autocalibration [PDF]

open access: yes, 2010
Many environments lack enough architectural information to allow an autocalibration based on features extracted from the scene structure. Nevertheless, the observation over time of walking people can generally be used to estimate the vertical vanishing ...
Mohedano del Pozo, Raúl   +1 more
core  

Auto-Calibration Methods of Kinematic Parameters and Magnetometer Offset for the Localization of a Tracked Mobile Robot

open access: yesRobotics, 2016
This paper describes an automatic calibration procedure adopted to improve the localization of an outdoor mobile robot. The proposed algorithm estimates, by using an extended Kalman filter, the main kinematic parameters of the vehicles, such as the wheel
Luciano Cantelli   +3 more
doaj   +1 more source

DrivingSense: Dangerous Driving Behavior Identification Based on Smartphone Autocalibration [PDF]

open access: yes, 2017
Since pervasive smartphones own advanced computing capability and are equipped with various sensors, they have been used for dangerous driving behaviors detection, such as drunk driving.
Xili Dai   +5 more
core   +1 more source

Auto-calibration method and performance analysis for noncircular sources based on instrumental sensors

open access: yesTongxin xuebao, 2014
An improved direction-finding algorithm for noncircular sources was proposed in the presence of angularly dependent gain and phase errors, which is called NC-ISM based on the fundamental principle of ISM (instrumental sen-sor method).
Jie-xin YIN, Ying WU, Ding WANG
doaj   +2 more sources

Spelling is just a click away – a user-centered brain-computer interface including auto-calibration and predictive text entry

open access: yesFrontiers in Neuroscience, 2012
Brain Computer Interfaces (BCI) based on event-related potentials (ERP) allow for selection of characters from a visually presented character-matrix and thus provide a communication channel for users with neurodegenerative disease.
Tobias eKaufmann   +3 more
doaj   +1 more source

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