Results 21 to 30 of about 682,805 (321)
High Resolution Calibration of a Multibeam Echo Sounder [PDF]
, 2010 Calibration can greatly increase the utility of collecting seafloor backscattering strength with multibeam echo sounders (MBES). A calibration procedure to determine high resolution, three dimensional transmit and receive beam patterns of a Reson SeaBat ...
Lanzoni, Carlo, Weber, Thomas C.
core +2 more sources
A taxonomy of camera calibration and video projection correction methods
EAI Endorsed Transactions on Creative Technologies, 2015 This paper provides a classification of calibration methods for cameras and projectors. From basic homography to complex geometric calibration methods, this paper aims at simplifying the choice of the methods to perform a calibration regarding the ...
Radhwan Ben Madhkour +2 more
doaj +1 more source
LOW-COST 3D LASER SCANNING IN AIR ORWATER USING SELF-CALIBRATING STRUCTURED LIGHT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 In-situ calibration of structured light scanners in underwater environments is time-consuming and complicated. This paper presents a self-calibrating line laser scanning system, which enables the creation of dense 3D models with a single fixed camera and
M. Bleier, A. Nüchter
doaj +1 more source
Simple Color Calibration Method by Projection onto Retroreflective Materials
Journal of Imaging, 2022 Retroreflective materials have the property of directional reflection, reflecting light strongly in the direction of the light source, and have been used for road traffic signs.
Yusuke Nakamura, Takahiko Horiuchi
doaj +1 more source
Projector Calibration by “Inverse Camera Calibration” [PDF]
, 2011 The accuracy of 3-D reconstructions depends substantially on the accuracy of active vision system calibration. In this work, the problem of video projector calibration is solved by inverting the standard camera calibration work flow. The calibration procedure requires a single camera, which does not need to be calibrated and which is used as the sensor
Martynov Ivan +2 more
openaire +2 more sources
A Single-Shot-Per-Pose Camera-Projector Calibration System for Imperfect Planar Targets [PDF]
2018 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct), 2018 Existing camera-projector calibration methods typically warp feature points from a camera image to a projector image using estimated homographies, and often suffer from errors in camera parameters and noise due to imperfect planarity of the calibration ...
Bingyao Huang +4 more
semanticscholar +1 more source
STRICT GEOMETRIC CALIBRATION OF AN UNDERWATER LASER TRIANGULATION SYSTEM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 This paper will describe a novel approach for the calibration of an underwater laser triangulation system. Underwater triangulation systems, consisting of a line laser and a camera can be used to determine the geometry of submerged objects or the ...
H. Sardemann, C. Mulsow, H.-G. Maas
doaj +1 more source
Simple calibration method for dual-camera structured light system
Journal of the European Optical Society-Rapid Publications, 2018 A dual-camera structured light system consisting of two cameras and a projector has been widely researched in three-dimensional (3D) profilometry. A vital step in these systems is 3D calibration.
Chao Chen, Nan Gao, Zonghua Zhang
doaj +1 more source
TOWARDS ROBUST SELF-CALIBRATION FOR HANDHELD 3D LINE LASER SCANNING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 This paper studies self-calibration of a structured light system, which reconstructs 3D information using video from a static consumer camera and a handheld cross line laser projector.
M. Bleier, A. Nüchter, A. Nüchter
doaj +1 more source
A Visual Servoing-Based Method for ProCam Systems Calibration
Sensors, 2013 Projector-camera systems are currently used in a wide field of applications, such as 3D reconstruction and augmented reality, and can provide accurate measurements, depending on the configuration and calibration.
Jeremie Mosnier +2 more
doaj +1 more source