Real-time measurement method and device for tire deformation

The invention discloses a real-time measurement method and device for tire deformation. The method comprises the following steps: S1, imaging an observation area in a tire by a binocular camera; S2, judging whether operation is performed for the first time or not, if so, entering S3, and otherwise, entering S6; S3, initializing a tire deformation measurement function module; s4, calibrating external parameters of the camera relative to the center of the wheel; s5, storing the initialized feature information and external parameter data into a feature file; s6, performing deformation measurement on the observation area to obtain deformation feature information of the observation area in a current state; s7, judging whether an external parameter self-calibration condition is met or not, and if so, entering S8; otherwise, entering S9; s8, recalibrating the external parameters of the camera, and updating the data content in the feature file by using the current observation area features and the external parameters