Development of camera calibration software using bundle adjustment method

Abstract

In close range photogrammetry, different types of camera such as compact digital camera, SLR digital camera and digital video camera can be used to capture the object of interest and determine the coordinates of the object. These cameras need to be calibrated in order to produce accurate results, hence, they need to be calibrated. The production of software for the purpose of camera calibration is not new.Many camera calibration software based on bundle adjustment method have been produced and available in the market. In this study, in-house bundle adjustment software is developed for the purpose of teaching and learning and understanding the concept of camera calibration. In the developed software, bundle adjustment method is adopted since it is a flexible method and can be used for many purposes such as calibration, resection, triangulation and others. This software uses the bottom up approach. Most of the existing bundle adjustment software provides the functions required to perform certain task. The developed software can assist the user in understanding the concept of bundle adjustment for camera calibration and all the functions in the software. This software is still under development and at early stage.