基于光场成像数字重聚焦过程的性能分析

doi:10.16182/j.issn1004731x.joss.201711037

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (11): 2875-2881.doi: 10.16182/j.issn1004731x.joss.201711037

基于光场成像数字重聚焦过程的性能分析

尤素萍^1,2, 卢昱丞², 张薇¹, 杨波¹

1.上海理工大学光电信息与计算机工程学院,上海 200093;
2.杭州电子科技大学理学院,浙江杭州 310018

收稿日期:2016-05-30 发布日期:2020-06-05
作者简介:尤素萍(1978-),女,江西玉山,博士生,高级实验师,研究方向为光学,光场成像等。
基金资助:
国家自然科学基金(61205015),浙江省自然科学基金(LQ16F050003),浙江省教育厅科研项目(Y201430970)

Performance Analysis of Digital Refocusing Process Based on Light Field Imaging

You Suping^1,2, LuYucheng², ZhangWei¹, YangBo¹

1. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology,Shanghai 200093;
2. School of Science, Hangzhou Dianzi University, Hangzhou,Zhejiang 310018

Received:2016-05-30 Published:2020-06-05

摘要/Abstract

摘要： 数字重聚焦是光场成像的一个重要特性,其性能的分析对光场成像研究具有重要的参考价值。本文基于微透镜阵列型光场成像时域与频域的两种不同重聚焦算法进行推导,分析了数字重聚焦算法中不同域、插值方法、采样半径对图像像质和计算运行速度的影响,得到在图像像质和处理速度之间的最佳值,实验结果表明利用该方案都能在较快的处理速度下实现较好的图像像质。

关键词: 光场成像, 数字重聚焦, 微透镜阵列, 光场相机

Abstract: Digital refocusing is one of the important properties of light field imaging, and the analysis of its performance has important reference value for the study of light field imaging. In this paper,two different digital refocusing algorithms based on the microlens array light field camera (LFC) in spatial and frequency domain are presented. We study the influences of different domains, interpolation methods and sample radius in digital refocusing algorithm on image quality and computation speed. And we yield a tradeoff between image quality and time consumption in two domains. Experiment results suggest that the two algorithms can achieve digital refocusing with fine image quality and less time consumption.

Key words: light field imaging, digital refocusing, micolens array, light field camera

中图分类号:

TP391.9

尤素萍, 卢昱丞, 张薇, 杨波. 基于光场成像数字重聚焦过程的性能分析[J]. 系统仿真学报, 2017, 29(11): 2875-2881.

You Suping, LuYucheng, ZhangWei, YangBo. Performance Analysis of Digital Refocusing Process Based on Light Field Imaging[J]. Journal of System Simulation, 2017, 29(11): 2875-2881.

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基于光场成像数字重聚焦过程的性能分析

Performance Analysis of Digital Refocusing Process Based on Light Field Imaging

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