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Recognition of the stacked two-dimensional bar code based on iterative deconvolution
2010
Imaging Science Journal
Traditionally, the method of bar code recognition is based on edge detection. Because of the high density of the stacked two-dimensional bar code, the signal is severely blurred by the point spread function of the optical system. And this method is not suitable. In order to deblur the image, a deconvolution technique is necessary. Under the influence of noise, deconvolution is a type of ill-posed problem. Based on the idea of bar codes as bilevel waveforms, a novel bar code recognition
doi:10.1179/136821909x12581187859970
fatcat:lqw3jn2fofc5ddxvm5ygkfze3e