嵌入式处理用于扩展深度场景成像系统:从无限脉冲响应维纳波器到学习解卷.
Alice Fontbonne1, Pauline Trouvé-Peloux2, Frédéric Champagnat2
1DOTA, ONERA, Université Paris Saclay, 91123 Palaiseau, France.
Sensors (Basel, Switzerland)
|December 9, 2023
概括
本研究探讨了使用嵌入式数字处理与有限冲动响应 (FIR) 过器扩展相机的深度 (DoF). 学习和维纳波器方法都证明了DoF扩展的强大性能.
科学领域:
- 光学和光子学 在光学和光子学.
- 数字图像处理 数字图像处理
- 计算成像技术的成像
背景情况:
- 目前用于扩展相机视野深度 (DoF) 的方法通常涉及复杂的光学元件和数字处理的联合优化,使用无限解卷或神经网络.
- 这些技术旨在改善更远距离的成像或放松传感器定位的制造公差.
研究的目的:
- 通过使用嵌入式数字处理与单一有限卷积来研究场深度 (DoF) 扩展.
- 为了比较不同的有限冲动响应 (FIR) 波器方法,包括学习和维纳波器范式.
主要方法:
- 为专注于DoF扩展的代码设计系统开发了一种光学模型.
- 采用维纳波器范式计算FIR波器系数,结合场景功率光谱密度 (无论是学习的还是建模的).
- 对比了各种FIR过器设计,并提出了一种预先优化过器尺寸的方法.
主要成果:
- 证明了DoF扩展与单一有限卷曲的可行性.
- 展示了学习的FIR过器提供了对数据集的适应性,而基于Wiener的过器提供了可比的稳定性.
- 介绍了一种在联合优化之前测量FIR过器尺寸的方法.
结论:
- 嵌入式处理与FIR过器是一个有效的策略,深度场域的扩展.
- 学习和维纳波器方法都是可行的,在适应性和稳定性方面提供了不同的优势.
- 拟议的测量方法有助于优化DoF扩展系统的FIR过器性能.
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