Automatic correction device of vehicle display system and method thereof

An automatic correction device of a vehicle display system, installed on a vehicle, comprising:

• an information capturing unit, used to fetch multiple facial features of a driver and distance between face of said driver and an image capturing device;
• a processing unit, used to calculate face rotation angles and facial features 3-D coordinates of said driver, based on said facial features and said distance obtained by said information capturing unit, to estimate a position field of view for said driver looking to front, and generate an overlap error correction parameter based on said position field of view, to correct a coordinate model;
• and
• a display unit, used to project said corrected coordinate model to front of said driver, so that position of said projected coordinate model overlaps said position field of view of said driver, wherein said facial features of said driver is a facial image of said driver obtained through using an image capturing device, that includes face of said driver, positions of nose and eyes, positions of face borders relative positions of said face borders and said nose, and environment illumination, and wherein the facial image of said driver includes a background region, in case illumination of said background region is less than a threshold value, said processing unit determines it is nighttime, and adjusts display illumination of said display unit.