2. Characters recognition of vehicle license plate and its applications (35 points) How to design and develop a system of character recognition of license plate using Back Propagation (BP) algorithm in artificial neural network? How to apply the system? Key points: (1) The basic composition (3 points and working principle of artificial neural network (4 points): (2) Steps of establishment of artificial neural network: (6 points) (3) Write the BP algorithm in pseudo code: (7 points) (4) The shortcomings of the BP algorithm and its improvement strategies; (6 points) (5) New technologies of character recognition of vehicle license plate, such as Convolutional Neural Network (CNN) etc.: (5 points) (6) Practical applications of the systems of character recognition of vehicle license plate, such as automatic vehicle charging in highway or automatic identification of illegal vehicles, etc. (4 points)