License Plate Location Method Based on LOG Edge Detection Operator
The license plate location method is the key technology of license plate recognition system, new algorithm is proposed based on LOG operator detecting edge of License Plate Location. First, a large number of color plate images are preprocessed to remove the background interference information, and then rough location of license plate based on block method, search area of plate will be greatly reduced and accurate positioning the plate will be realized by LOG operator combined with projection method. Static license plate image positioning by simulation and analysis show that the method has high accuracy in license plate location.
Z. W. Wu "License Plate Location Method Based on LOG Edge Detection Operator", Applied Mechanics and Materials, Vol. 108, pp. 52-55, 2012