Vehicle VIN code tamper detection system and method for vehicle annual inspection
A technology for tampering detection and vehicles, which is applied in the directions of instruments, character and pattern recognition, character recognition, etc. It can solve the problems that affect the accuracy of verification and the difficulty of distinguishing by inspectors, and achieve the effect of saving manpower
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[0038] The present invention will be further described below in conjunction with the accompanying drawings.
[0039] Vehicle VIN code tampering detection system of the present invention, such as figure 1 As shown, it includes target detection module, feature point comparison module and judgment module; among them,
[0040] The target detection module is composed of a target detection unit, a character segmentation unit and a feature point detection unit; the target detection unit obtains the vehicle VIN code area image through the target detection model, and the character segmentation unit uses the character segmentation model to segment the acquired vehicle VIN code area image into individual character, and the feature point of each character is extracted by the feature point detection unit;
[0041] The feature point comparison module includes an image mapping unit, a feature point comparison unit, and a judgment unit; the image mapping unit constructs a homography matrix f...
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