Cylindrical surface bidimensional bar code reading method based on image splicing
A technology of two-dimensional barcode and image stitching, which is applied in the direction of electromagnetic radiation induction, and can solve problems such as cylinder distortion, incomplete collection information, and uneven illumination of two-dimensional barcodes on cylinders.
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[0088] Describe the present invention below in conjunction with specific embodiment:
[0089] In this example, a cylindrical metal of Φ6 is used, and a set of sequence images are collected with MV1300 under the reading tool. In this example, the camera parameters are selected as follows: shutter speed 10us, gain adjustment 60, acquisition speed is high speed. In order to achieve the above object, the overall process of the technical solution of the present invention is as follows: figure 1 shown.
[0090] Step 1: Under the reading tooling, adjust and reduce the gap of the baffle until there is no highlight reflection in the collected barcode image, and then rotate and continuously collect N images of the two-dimensional barcode The N images contain all the information of the two-dimensional barcode; the width of each image is w=97, the height is h=384, Represents the nth image Mvtemp n The pixel value of the pixel in column i and row j in . In this embodiment, 8 images ...
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