Vehicle positioning method based on weight adjustment and system using the same

A vehicle positioning method based on weight adjustment, performed by a positioning system arranged on a vehicle, comprising:

• by an image quality module of the positioning system, generating an image quality value based on an exposure concentration of each of a plurality of driving images captured by a plurality of image capturing modules arranged on the vehicle;
• by a lane line confidence module of the positioning system, generating a lane line confidence based on the plurality of driving images;
• by an image confidence module of the positioning system, generating an image confidence based on the image quality value and the lane line confidence;
• by a positioning confidence module of the positioning system, generating a positioning confidence based on a plurality of positioning data received by a positioning sensing module arranged on the vehicle;
• by a weight adjusting module of the positioning system, adjusting a driving image weight value, a positioning data weight value, and an inertial data weight value based on the image confidence and the positioning confidence;
• and
• by a positioning adjusting module of the positioning system, adjusting an original positioning coordinate value based on the driving image weight value, the positioning data weight value, and the inertial data weight value to generate a final positioning coordinate value.