Two-dimensional code image detection and recognition equipment, device and method

The invention discloses two-dimensional code image detection and recognition equipment, device and method, and the device comprises a detection unit which carries out the preliminary detection of an obtained target image through employing a target detection model and weight data, so as to obtain M pieces of two-dimensional code position information; the image processing unit acquires a corresponding two-dimensional code image to process and generate a first two-dimensional code image; the feature extraction unit enables the contour information of the first two-dimensional code image to form acontour list; the two-dimensional code screening unit is used for intercepting an image of the Nth contour to obtain a second two-dimensional code image when judging that the Nth contour is square according to the coordinate points in the contour list; and the two-dimensional code calibration unit calculates a horizontal included angle of any side of the second two-dimensional code image and rotates the second two-dimensi