Guangming Zhang

1 month ago | mdpi.com | Haotian Wang |Hongwei Ma |Guangming Zhang |Yuan Chen

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Jul 29, 2024 | opg.optica.org | Zhongyang Wang |Guangming Zhang |Yuan Chen |Quan Wang

In digital holographic measurement, when light waves pass through inhomogeneous media or surfaces, speckle noise is generated, resulting in random, granular light and dark spots in the hologram, which greatly reduces the image quality. Therefore, in order to improve the image quality of holographic reconstruction, a noise reduction method based on the BM3D improved convolutional neural network (CNN) is proposed in this paper.