@inproceedings{1df18783cc5448a4a1cf2a045f0f62e6,
title = "Geometric calibration of focused light field camera for 3-D flame temperature measurement",
abstract = "Focused light field camera can be used to measure three-dimensional (3-D) temperature field of a flame because of its ability to record intensity and direction information of each ray from flame simultaneously. This work aims to develop a suitable geometric calibration method of focused light field camera for 3-D flame temperature measurement. A modified method based on Zhang's camera calibration is developed to calibrate the camera and the measurement system. A single focused light-field camera is used to capture images of bespoke calibration board for calibration in this study. Geometric parameters including intrinsic (i.e., camera parameters) and extrinsic (i.e., camera connecting with the calibration board) of the focused light field camera are calibrated to trace the ray projecting onto each pixel on CCD (charge-coupled device) sensor. Instead of using line features, corner point features are directly utilized for the calibration. The characteristics of focused light field camera including one 3-D point corresponding to several image points and matching main lens and microlens f-numbers, are used for calibration. Results with a focused light field camera are presented and discussed. Preliminary 3-D temperature distribution of a flame is also investigated and presented.",
keywords = "Focused light field camera, Zhang's calibration method, camera calibration, ray tracing",
author = "Jun Sun and Chuanlong Xu and Biao Zhang and Shimin Wang and Hossain, \{Md Moinul\} and Hong Qi and Heping Tan",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2016 ; Conference date: 23-05-2016 Through 26-05-2016",
year = "2016",
month = jul,
day = "22",
doi = "10.1109/I2MTC.2016.7520580",
language = "英语",
series = "Conference Record - IEEE Instrumentation and Measurement Technology Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "I2MTC 2016 - 2016 IEEE International Instrumentation and Measurement Technology Conference",
address = "美国",
}