Super-resolution of bar codes

@article{Bailey2001SuperresolutionOB,
  title={Super-resolution of bar codes},
  author={Donald G. Bailey},
  journal={J. Electronic Imaging},
  year={2001},
  volume={10},
  pages={213-220}
}
This article describes how under-resolved images of bar codes may be read by suitable processing. A two-dimensional image of a bar code with insufficient resolution to be able to resolve the individual bars is processed to give a high-resolution image. For this to work, the bar code (or camera) must be slightly rotated to give a fraction of a pixel offset between rows. Since the bars are straight, the offset relative to the first complete row of the bar code increases linearly with vertical… CONTINUE READING
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