Provided is a parameter calibration method for cameras of a vehicle-mounted all-round view
system. When internal parameters and external parameters of the cameras of the vehicle-mounted all-round view
system are calibrated, a set of three-dimensional calibration markers are adopted and comprise a plurality of characteristic points which can be recognized easily from images and are provided with given three-dimensional coordinates; when a vehicle to be calibrated is parked in a calibration area, automatic image data collection is carried out through manual work or through external trigger signals,
characteristic point extraction is carried out on the collected images, each camera is calibrated corresponding to the three-dimensional coordinate of each
characteristic point, and errors of locating are lowered through the processes such as parameter optimization. According to the parameter calibration method for the cameras of the vehicle-mounted all-round view
system, through the three-dimensional calibration markers, all areas of the cameras can be covered as much as possible, and the influence of camera
distortion on the measuring errors in the calibration process is small; compared with a previous plane two-dimensional calibration board, a three-dimensional calibration board is accurate in selected
characteristic point position, clear in imaging and low in error value, and
image stitching precision is greatly improved.