Highway toll collection business centralized monitoring check-in system

The invention relates to the technical field of image coding, in particular to a centralized monitoring check-in system for highway toll collection business. The system comprises a memory and a processor, and the processor executes a computer program stored in the memory so as to realize the following steps: obtaining a monitoring video of a working room where a worker at a highway toll station is located, and obtaining a characteristic value according to position distribution and gray level distribution of pixel points in each closed contour in each frame of monitoring image; determining a compatibility value according to the number ratio of the edge pixel points in each frame of monitoring image in a preset historical time period and the position difference of the edge pixel points; on the basis of the difference of the characteristic values and the difference of the compatibility values of the monitoring images, obtaining the correlation degree of the corresponding two frames of monitoring images, and then