DENOISING AND/OR ZOOMING OF INSPECTION IMAGES

申请公布号：WO2017051194(A1)

申请号：WO2016GB52977

申请日期：2016.09.23

申请公布日期：2017.03.30

申请人：

SMITHS HEIMANN SAS;VIENNE, Aymeric

发明人：GADI, Najib;DESAUTE, Pascal;DORION, Irène

分类号：G06T5/00;G01N23/04;G01T7/00;G01V5/00;G06T11/00

主分类号：G06T5/00

摘要：In one aspect, there is provided a method of denoising one or more inspection images comprising a plurality of pixels, comprising: receiving an inspection image generated by an inspection system configured to inspect one or more containers, the inspection image being corrupted by a Poisson- Gaussian noise and a variance of the noise being non-constant in the plurality of pixels, and denoising the received inspection image by applying, to the inspection image, a variance-stabilizing transformation for transforming the variance of the noise into a constant variance in the plurality of pixels, wherein the variance-stabilizing transformation is based on a descriptor associated with the angular divergence of the inspection radiation and the Poisson-Gaussian noise.

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