Applications of hidden Markov models in bar code decoding
Pattern Recognition Letters
Edge detection in bar code signals corrupted by integrated time-varying speckle
Pattern Recognition
Two-dimensional bar code out-of-focus deblurring via the Increment Constrained Least Squares filter
Pattern Recognition Letters
| Hi-index | 0.01 |
An algorithm for processing closely spaced edges and accurately restoring their locations is presented. The convolution distortion model is based on interacting edges. The restoration algorithm takes three edges as input and forces the effects of two of them to cancel each other. Thus the third edge appears to be isolated and is located using a traditional edge detector. Experiments on bar code waveforms reveal that this approach outperforms the current commercial bar code readers