Single Image Camera Calibration with Lenticular Arrays for Augmented Reality

2016 ◽  
Author(s):  
Ian Schillebeeckx ◽  
Robert Pless
Keyword(s):  
Augmented Reality ◽  
Camera Calibration ◽  
Single Image ◽  
Image Camera

scholarly journals A Perceptual Measure for Deep Single Image Camera Calibration

2018 ◽  
Author(s):  
Yannick Hold-Geoffroy ◽  
Kalyan Sunkavalli ◽  
Jonathan Eisenmann ◽  
Matt Fisher ◽  
Emiliano Gambaretto ◽  
...  
Keyword(s):  
Camera Calibration ◽  
Single Image ◽  
Image Camera ◽  
Perceptual Measure

Deep Single Image Camera Calibration With Radial Distortion

2019 ◽  
Author(s):  
Manuel Lopez ◽  
Roger Mari ◽  
Pau Gargallo ◽  
Yubin Kuang ◽  
Javier Gonzalez-Jimenez ◽  
...  
Keyword(s):  
Camera Calibration ◽  
Single Image ◽  
Radial Distortion ◽  
Image Camera

scholarly journals Application of single-image camera calibration for ultrasound augmented laparoscopic visualization

2015 ◽  
Author(s):  
Xinyang Liu ◽  
He Su ◽  
Sukryool Kang ◽  
Timothy D. Kane ◽  
Raj Shekhar
Keyword(s):  
Camera Calibration ◽  
Single Image ◽  
Image Camera

scholarly journals SINGLE IMAGE CAMERA CALIBRATION IN CLOSE RANGE PHOTOGRAMMETRY FOR SOLDER JOINT ANALYSIS

2016 ◽  
Vol XLI-B3 ◽  
pp. 27-30
Author(s):  
D. Heinemann ◽  
S. Knabner ◽  
D. Baumgarten
Keyword(s):  
Camera Calibration ◽  
Printed Circuit Boards ◽  
Joint Analysis ◽  
Solder Paste ◽  
Two Dimensional ◽  
Single Image ◽  
Close Range Photogrammetry ◽  
Calibration Methods ◽  
Close Range ◽  
Image Camera

Printed Circuit Boards (PCB) play an important role in the manufacturing of electronic devices. To ensure a correct function of the PCBs a certain amount of solder paste is needed during the placement of components. The aim of the current research is to develop an real-time, closed-loop solution for the analysis of the printing process where solder is printed onto PCBs. Close range photogrammetry allows for determination of the solder volume and a subsequent correction if necessary. Photogrammetry is an image based method for three dimensional reconstruction from two dimensional image data of an object. A precise camera calibration is indispensable for an accurate reconstruction. In our certain application it is not possible to use calibration methods with two dimensional calibration targets. Therefore a special calibration target was developed and manufactured, which allows for single image camera calibration.

scholarly journals SINGLE IMAGE CAMERA CALIBRATION IN CLOSE RANGE PHOTOGRAMMETRY FOR SOLDER JOINT ANALYSIS

2016 ◽  
Vol XLI-B3 ◽  
pp. 27-30 ◽  
Author(s):  
D. Heinemann ◽  
S. Knabner ◽  
D. Baumgarten
Keyword(s):  
Camera Calibration ◽  
Printed Circuit Boards ◽  
Joint Analysis ◽  
Solder Paste ◽  
Two Dimensional ◽  
Single Image ◽  
Close Range Photogrammetry ◽  
Calibration Methods ◽  
Close Range ◽  
Image Camera

Printed Circuit Boards (PCB) play an important role in the manufacturing of electronic devices. To ensure a correct function of the PCBs a certain amount of solder paste is needed during the placement of components. The aim of the current research is to develop an real-time, closed-loop solution for the analysis of the printing process where solder is printed onto PCBs. Close range photogrammetry allows for determination of the solder volume and a subsequent correction if necessary. Photogrammetry is an image based method for three dimensional reconstruction from two dimensional image data of an object. A precise camera calibration is indispensable for an accurate reconstruction. In our certain application it is not possible to use calibration methods with two dimensional calibration targets. Therefore a special calibration target was developed and manufactured, which allows for single image camera calibration.

scholarly journals Registration of a 3D Model on a Single Image in Wide Angle Augmented Reality

2000 ◽  
Vol 4 (2) ◽  
pp. 37-53
Author(s):  
Youngmin Lee ◽  
Kwangyun Wohn
Keyword(s):  
Augmented Reality ◽  
Camera Calibration ◽  
3D Model ◽  
Reference Object ◽  
Wide Angle ◽  
Single Image ◽  
Registration Method ◽  
Internal Parameters ◽  
Outdoor Scenes ◽  
Calibration Free

This paper presents a new design of a wide angle augmented reality (AR) system and an effective registration method using a single image. The AR system is designed to meet three requirements: (1) the field of view (FOV) of the AR system must be wide enough to view reference constructions in outdoor scenes; (2) the precise registration of virtual objects should be guaranteed at any position of the image; and (3) the registration should be valid after motion of the camera. We use camera calibration and calibration-free methodologies in our approach. The internal parameters of the camera are determined roughly by the camera calibration and how the distortion coefficient of the camera lens is refined. The external parameters are determined by the calibration-free approach. At least four coplanar points forming a projected parallelogram are needed to construct the affine coordinates that are used for the registration. The only presumed condition is that the user specifies some projected parallelogram lines of the reference object interactively. The experimental results demonstrate the display prototype of the wide angle AR system with the distorted images removed and registration of 3D virtual models in static and dynamic camera environments.

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