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对光场摄像机侧面分辨率的评估
Sowon J Yoon1,2, Peter Bajcsy1, Maritoni Litorja3
1Information Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA, 20899.
概括
光场摄像机提供3D成像能力. 它们的横向分辨率在视野中心是最好的,并且随着更高的变焦水平而提高,尽管分辨率随着高变焦的距离而下降.
科学领域:
- 光学和光子学 在光学和光子学.
- 3D成像技术的使用.
- 计量学 计量学 计量学
背景情况:
- 光场摄像机使用光线捕获3D场景信息.
- 它们越来越多的便携性和可负担性提高了它们在3D测量应用中的使用.
- 应用包括法医科学中的3D证据成像.
研究的目的:
- 为了评估商业光场相机的侧面分辨率.
- 了解成像配置如何影响横向分辨率.
- 为了确定光场摄像机适合精确的3D测量.
主要方法:
- 西门子的恒星是使用商业光场相机拍摄的.
- 图像配置不同:距离,照明,变焦水平和视野位置.
- 为了进行综合分析,采用了全因数实验设计.
主要成果:
- 侧面分辨率随着距离在更高的变焦水平下降.
- 相机的中央视野与外围区域相比,提供了更好的横向分辨率.
- 更高的变焦水平通常会导致更高的侧向分辨率.
- 照明变化和相机模型变化没有显著影响侧向分辨率.
结论:
- 光场摄像头的侧面分辨率受到变焦水平和观看位置的影响.
- 距离在高变焦设置下显著影响分辨率.
- 这些发现对于优化光场摄像机在3D测量任务中的使用至关重要.
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