Results 31 to 40 of about 682,805 (321)
Large-scale calibration method for MEMS-based projector 3D reconstruction.
Optics Express, 2023 Projectors based on Micro-Electro-Mechanical System (MEMS) have the advantages of small size and low cost. Moreover, uniaxial MEMS projectors have high projection accuracy, and have been widely used in structured light 3D reconstruction.
Tinglei Wan +3 more
semanticscholar +1 more source
Projector Calibration Using Passive Stereo and Triangulation [PDF]
International Journal of Future Computer and Communication, 2013 In the past, 3D shape reconstruction process was based on passive stereo which do not require direct control of any illumination source, instead relying entirely on light. Nowadays, 3D shape reconstruction is based on active stereo which replace one camera with a projector. The projector plays an important part in solving the correspondence problem. It
Yousef B Mahdy +2 more
openaire +1 more source
Photonics, 2023 Fringe projection is an important technology in three-dimensional measurement and target recognition. The measurement accuracy depends heavily on the calibration of the absolute phase and projector pixels. An easy-to-implement calibration method based on
Guangxi Dong +3 more
doaj +1 more source
An intelligent real time 3D vision system for robotic welding tasks [PDF]
, 2013 MARWIN is a top-level robot control system that has been designed for automatic robot welding tasks. It extracts welding parameters and calculates robot trajectories directly from CAD models which are then verified by real-time 3D scanning and ...
Kormann, Mariza +3 more
core +1 more source
SINGLE IMAGE LASER TRIANGULATION SYSTEM FOR 360° EXTERNAL INSPECTION OF CYLINDRICAL SHAPED OBJECTS USING INVERSE TRIANGULATION ALGORITHM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 This paper proposes a new Laser Triangulation System (LTS) that allows an 360° external inspection for each acquired image using two planar mirrors, one laser line projector, and one camera.
S. A. B. Petrovcic +3 more
doaj +1 more source
Projector calibration method based on optical coaxial camera [PDF]
, 2014 This paper presents a novel method to accurately calibrate a DLP projector by using an optical coaxial camera to capture the needed images. A plate beam splitter is used to make imaging axis of the CCD camera and projecting axis of the DLP projector ...
Gao, F. +4 more
core +1 more source
Sensors, 2023 The development of a robust 3D imaging system for underwater applications is a crucial process in underwater imaging where the physical properties of the underwater environment make the implementation of such systems challenging.
Domagoj Zoraja +3 more
doaj +1 more source
Camera-projector calibration for near infrared imaging system
, 2020 Advanced biomedical engineering technologies are continuously changing the medical practices to improve medical care for patients. Needle insertion navigation during intravenous catheterization process via Near infrared (NIR) and camera-projector is one ...
Marlina Yakno +3 more
semanticscholar +1 more source
A Calibration Bound for the M-Theory Fivebrane [PDF]
, 1999 We construct a covariant bound on the energy-momentum of the M-fivebrane which is saturated by all supersymmetric configurations. This leads to a generalised notion of a calibrated geometry for M-fivebranes when the worldvolume gauge field is non-zero ...
Bandos +11 more
core +6 more sources
PRECISION AND ACCURACY PARAMETERS IN STRUCTURED LIGHT 3-D SCANNING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Structured light systems are popular in part because they can be constructed from off-the-shelf low cost components. In this paper we quantitatively show how common design parameters affect precision and accuracy in such systems, supplying a much needed ...
E. R. Eiríksson +3 more
doaj +1 more source