Method and system for fusing multi-channel continuous video and three-dimensional twinborn scene on traffic road

The invention provides a multi-channel continuous video and three-dimensional twinborn scene fusion method and system on a traffic road, and the method comprises the steps: S1, calibrating a camera based on an improved calibrate camera algorithm, and obtaining an exterior orientation element, an interior orientation element and a distortion coefficient of the camera; s2, performing distortion correction on an image acquired by the camera according to the distortion coefficient, and setting a Mask graph to extract a focus part of the image; s3, constructing a mapping relation from the oblique photography three-dimensional model to a pixel coordinate system, obtaining RGB values of all pixel points in the current video stream image, and filling the RGB values of the focused part in the image into the oblique photography three-dimensional model pixel by pixel according to the mapping relation; and S4, projecting the multi-channel video stream images to the oblique photography three-dimensional model according to