Research on iterative deblurring method for high speed scanning imaging of printed circuit board based on ray rearrangement
The image of the printed circuit board(PCB)captured by the automated optical inspection(AOI)while in fast motion is significantly blurred.To enhance scanning and improve efficiency,restoring the image's clarity is essential.This article draws inspiration from the algebra reconstruction technique(ART)and presents a non-blind deblurring method based on ray rearrangement.This approach is founded on the iterative reconstruction algorithm of fast iterative shrinkage thresholding algorithm(FISTA).It employs Nestrov acceleration and ray rearrangement to enhance convergence speed and regularization to diminish the additive noise and artifacts in the image.The findings suggest that this technique demonstrates enhanced proficiency in noise suppression and image restoration in contrast to the conventional inverse filtering approach.
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