SEMI AND FULLY-AUTOMATIC CAMERA CALIBRATION TOOLS USING LASER-BASED MEASUREMENT DEVICES

摘要

A system and method for externally calibrating a camera in photogrammetry are disclosed. The system includes a camera for capturing an image; a light source coupled to the camera for projecting beams of coherent light against a target to create a plurality of markers on the target; and a computer communicating with the camera and light source and having a processor and memory containing machine readable instructions which, when executed by the processor, enable the computer to capture images from the camera containing the plurality of markers and distance information from the light source to estimate the calibration parameters using the detected locations of the markers in the images and the measured distances.