光学学报, 2020, 40 (1): 0111015, 网络出版: 2020-01-06
基于光场的高分辨率非周期性视角图提取算法 
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High Resolution Nonperiodic View Extraction Algorithm Based on Light Field
图 & 表
图 1. 基于微透镜阵列的成像系统采集的图像。(a)光场数据;(b)局部放大图
Fig. 1. Image acquired by imaging system based on microlens array. (a) Light field data; (b) local magnification
图 7. 两种算法提取的视角图。(a)周期性算法图;(b)非周期性算法图;(c)(d)分别对图7 (a)和图7 (b)二值化后的结果图;(e)(f)分别对图7 (a)和图7 (b)轮廓提取后的结果图;(g)(h)分别是图7 (a)和图7 (b)的局部放大图
Fig. 7. Views extracted by two algorithms. (a) View of periodic algorithm; (b) view of nonperiodic algorithm; (c)(d) binarization results of Fig. 7 (a) and Fig. 7 (b); (e)(f) outline extraction results of Fig. 7 (a) and Fig. 7 (b); (g)(h) local magnification of Fig. 7 (a) and Fig. 7 (b)
图 8. 非周期性算法提取像素块构成的视角图。(a)~(c)像素块大小分别为 1×1、 2×2、 3×3; (d)~(i)对应视角图的局部放大图
Fig. 8. Views formed by pixel blocks extracted by nonperiodic algorithm. (a)-(c) Sizes of pixel blocks are 1×1, 2×2, and 3×3; (d)-(i) local magnification of corresponding views
图 9. 两种算法构成的高分辨率视角图。(a)双三次插值法图; (b)非周期性算法图; (c)~(f)对应视角图的局部放大图
Fig. 9. High resolution views obtained by two algorithms. (a) View of bicubic interpolation algorithm; (b) view of nonperiodic algorithm; (c)-(f) local magnification of corresponding views
表 1图像质量对比
Table1. Image quality comparison
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彭晶, 李晖, 吴云韬. 基于光场的高分辨率非周期性视角图提取算法[J]. 光学学报, 2020, 40(1): 0111015. Jing Peng, Hui Li, Yuntao Wu. High Resolution Nonperiodic View Extraction Algorithm Based on Light Field[J]. Acta Optica Sinica, 2020, 40(1): 0111015.
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