Selection of an Appropriate Extrinsic Camera Calibration Method for Handheld Mobile Mapping Systems

Abstract

Mobile mapping systems integrate multiple sensors to collect large volumes of geospatial data in motion. With the growing demand for mapping enclosed and hard-to-reach areas, there has been significant advancement in handheld mobile mapping systems utilizing SLAM (Simultaneous Localization and Mapping) technology. To ensure their data is efficiently usable, these systems should produce oriented images, which are essential for visualization, point cloud colorization, and monoplotting. Achieving so requires precise extrinsic camera calibration. This research provides a comprehensive overview of existing extrinsic camera calibration methods and evaluates their suitability for application in handheld mobile mapping systems. The goal is to identify a method that meets the accuracy and practical needs of these systems, facilitating more effective data processing and utilization in challenging environments.

Keywords

• external camera
• extrinsic camera calibration
• handheld mobile mapping systems
• mobile mapping
• SLAM