Acta Optica Sinica, Volume. 40, Issue 1, 0111015(2020)
High Resolution Nonperiodic View Extraction Algorithm Based on Light Field
In light field imaging, the view extraction resolution and data accuracy cannot be balanced. To solve this problem, a nonperiodic view extraction algorithm is proposed herein. First, the microlens array sampling principle is analyzed, and center offset of each microlens is calculated. To analyze the range of the view angle, the projection area of each microlens is calculated by synthesizing multiple viewpoints. Finally, the nonperiodic extraction of pixel blocks is utilized to form a view. A Lytro camera is utilized to obtain light field data, and a nonperiodic algorithm is used to extract 2×2 and 3×3 pixel blocks to form views. Compared to the traditional method, the proposed method improves the resolution by 2×2 and 3×3 times, while simultaneously improving the image quality.
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Jing Peng, Hui Li, Yuntao Wu. High Resolution Nonperiodic View Extraction Algorithm Based on Light Field[J]. Acta Optica Sinica, 2020, 40(1): 0111015
Category: Special Issue on Computational Optical Imaging
Received: Jul. 2, 2019
Accepted: Sep. 9, 2019
Published Online: Jan. 6, 2020
The Author Email: Li Hui (lihui00317@163.com), Wu Yuntao (ytwu@sina.com)