Kit device, calibration system and operation method thereof

An operation method of a calibration system, comprising:

• providing a camera group, wherein the camera group comprises a first camera, and the first camera has a first field of view, wherein the first camera is one of around view monitor cameras;
• providing a second camera having a second field of view, wherein the second camera is a driver monitoring system camera;
• providing a third camera having a third field of view, wherein the third field of view partially overlaps the first field of view and the second field of view, wherein the third camera is another one of around view monitor cameras;
• providing a first calibration board disposed within the first field of view and the third field of view;
• providing a second calibration board disposed within the second field of view and the third field of view;
• providing a processing unit coupled to the first camera, the second camera and the third camera;
• using the first camera to capture the first calibration board to generate a first image;
• using the second camera to capture the second calibration board to generate a second image;
• using the third camera to capture the first calibration board and the second calibration board to generate a third image;
• using the processing unit to calculate a first relative position and a first angle difference of the first camera and the second camera according to the first image, the second image and the third image;
• wherein the step of using the processing unit to calculate the first relative position and the first angle difference of the first camera and the second camera according to the first image, the second image and the third image comprises:
• using the processing unit to calculate a first position and a first viewing angle corresponding to the first camera and the first calibration board according to the first image;
• using the processing unit to calculate a second position and a second viewing angle corresponding to the second camera and the second calibration board according to the second image;
• using the processing to calculate a third position and a third viewing angle corresponding to the third camera and the first calibration board and a fourth position and a fourth viewing angle corresponding to the third camera and the second calibration board according to the third image, and to calculate the first relative position and the first angle difference of the first camera and the second camera according to the first position, the first viewing angle, the second position, the second viewing angle, the third position, the third viewing angle, the fourth position and the fourth viewing angle.

A kit device, suitable to calibrate a first camera and a second camera, wherein the first camera has a first field of view, the second camera has a second field of view, the first camera is one of around view monitor cameras, the second camera is a driver monitoring system camera, and the kit device comprises:

• a third camera, having a third field of view, wherein the third field of view partially overlaps the first field of view and the second field of view, wherein the third camera is another one of around view monitor cameras;
• a first calibration board, disposed within the first field of view and the third field of view;
• a second calibration board, disposed within the second field of view and the third field of view;
• a processing unit, coupled to the first camera, the second camera and the third camera;
• wherein the processing unit is configured to calculate a first relative position and a first angle difference of the first camera and the second camera according to a first image of the first camera, a second image of the second camera and a third image of the third camera;
• wherein the first image is generated by the first camera capturing the first calibration board;
• wherein the second image is generated by the second camera capturing the second calibration board;
• wherein the third image is generated by the third camera capturing the first calibration board and the second calibration board;
• wherein the processing unit is further configured to calculate a first position and a first viewing angle corresponding to the first camera and the first calibration board according to the first image;
• wherein the processing unit is further configured to calculate a second position and a second viewing angle corresponding to the second camera and the second calibration board according to the second image;
• wherein the processing unit is further configured to calculate a third position and a third viewing angle corresponding to the third camera and the first calibration board and a fourth position and a fourth viewing angle corresponding to the third camera and the second calibration board according to the third image, and the processing unit is configured to calculate the first relative position and the first angle difference of the first camera and the second camera according to the first position, the first viewing angle, the second position, the second viewing angle, the third position, the third viewing angle, the fourth position and the fourth viewing angle.