Acta Optica Sinica, Volume. 41, Issue 9, 0918001(2021)
Research on Microscopic Imaging of High Resolution Light Field Based on Graph Regularization
With regard to the low spatial resolution in light filed microscopy, we proposed a method based on graph regularization and reconstructed a super-resolution light field. As a result, high-resolution view angle images of the light field were obtained. Firstly, the images of the light field were aperiodically extracted. Then, the super-resolution issue in the light field was transformed into a global optimization problem, in which the complementary information between those images was applied for smoothing regularization. Finally, the gradient descent algorithm minimized the objective function and thus reconstructed the high-resolution view angle images. Experimentally, a light field microscope, equipped with an objective lens, a microlens array, and a CCD, collected the data of the light field, and then graph regularization was used to reconstruct the high-resolution light field. Compared with the traditional methods, the proposed method has small calculation amount in disparity estimation and high imaging quality, and effectively retains the original light field structure.
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Feifan Yang, Hui Li, Jing Peng, Yuntao Wu. Research on Microscopic Imaging of High Resolution Light Field Based on Graph Regularization[J]. Acta Optica Sinica, 2021, 41(9): 0918001
Category: Microscopy
Received: Sep. 30, 2020
Accepted: Dec. 1, 2020
Published Online: May. 8, 2021
The Author Email: Li Hui (lihui00317@163.com)