Results 11 to 20 of about 682,805 (321)
Practical and Precise Projector-Camera Calibration [PDF]
2016 IEEE International Symposium on Mixed and Augmented Reality (ISMAR), 2016 Projectors are important display devices for large scale augmented reality applications. However, precisely calibrating projectors with large focus distances implies a trade-off between practicality and accuracy. People either need a huge calibration board or a precise 3D model [12].
Yang, Liming +2 more
openaire +3 more sources
3D Modelling with Structured Light GAMMA Calibration [PDF]
Advances in Electrical and Electronic Engineering, 2014 Structured light method is one of the non-contact measurement methods used for high resolution and high sensitive 3D modeling. In this method, a projector, camera and computer are used.
Eser Sert +2 more
doaj +4 more sources
Journal of Imaging, 2017 The geometric calibration of projectors is a demanding task, particularly for the industry of virtual reality simulators. Different methods have been developed during the last decades to retrieve the intrinsic and extrinsic parameters of projectors, most
Cristina Portalés +3 more
doaj +2 more sources
Sub-pixel projector calibration method for fringe projection profilometry
Optics Express, 2017 Digital projectors are used as standard parts at present in fringe projection profilometry systems to project structured-light patterns onto the object surface to be measured, and the distortion of the projector lens must be calibrated and compensated accurately to satisfy the accuracy requirement of industrial applications.
Wei Zhang +5 more
openaire +3 more sources
Rapid Calibration of the Projector in Structured Light Systems Based on Brox Optical Flow Estimation
Photonics, 2022 In this work, we propose a rapid calibration technique for locating the projector in the structured light measurement system. Using Brox optical flow, the calibration of the three-dimensional (3-D) coordinates of the projector only requires two images ...
Yuxin Tang +4 more
doaj +1 more source
Optics Express, 2021 Camera and projector are the key components of structured light three-dimensional (3-D) measurements, and Digital Light Processing (DLP) projector has been widely used for projecting digital structured light patterns for the measurement.
Jin Yu +3 more
semanticscholar +1 more source
Calibration of a Catadioptric System and 3D Reconstruction Based on Surface Structured Light
Sensors, 2022 In response to the problem of the small field of vision in 3D reconstruction, a 3D reconstruction system based on a catadioptric camera and projector was built by introducing a traditional camera to calibrate the catadioptric camera and projector system.
Zhenghai Lu +5 more
doaj +1 more source
A High-Accuracy Calibration Method for a Telecentric Structured Light System
Sensors, 2022 We propose a method for accurately calibrating a telecentric structured light system consisting of a camera attached to a bilateral telecentric lens and a pin-hole projector.
Chao Chen +3 more
doaj +1 more source
PROJECTOR CALIBRATION USING A MARKERLESS PLANE [PDF]
Proceedings of the Fourth International Conference on Computer Vision Theory and Applications, 2009 In this paper we address the problem of geometric video projector calibration using a markerless planar surface (wall) and a partially calibrated camera. Instead of using control points to infer the camera-wall orientation, we find such relation by efficiently sampling the hemisphere of possible orientations. This process is so fast that even the focal
Draréni, Jamil +2 more
openaire +3 more sources
Single-Shot Three-Dimensional Reconstruction Using Grid Pattern-Based Structured-Light Vision Method
Applied Sciences, 2022 Structured-light vision methods are widely employed for three-dimensional reconstruction. As a typical structured light pattern, grid pattern is extensively applied in single-shot three-dimensional reconstruction.
Bin Liu +4 more
doaj +1 more source