Comparative Studies of Line-based Panoramic Camera Calibration

The calibration of a line-based panoramic camera can be split into two independent subtasks: first calibrate the effective focal length and the principal row, and second, calibrate the off-axis distance and the principal angle. The paper provides solutions for three different methods, and compares these methods based on experiments using a superhigh resolution line-based panoramic camera. It turns out that the second subtask is solved best if a straight-segment based approach is used, compared to point-based or correspondence-based calibration methods, all already known for traditional (planar) pinhole cameras, but not yet previously discussed for panoramic cameras.