Measurement Technologies of Light Field Camera: An Overview

X Hu, Z Li, L Miao, F Fang, Z Jiang, X Zhang - Sensors, 2023 - mdpi.com
Visual measurement methods are extensively used in various fields, such as aerospace,
biomedicine, agricultural production, and social life, owing to their advantages of high …

融合多尺度特征的光场图像超分辨率方法

赵圆圆, 施圣贤 - 光电工程, 2020 - cn.oejournal.org
光场相机作为新一代的成像设备, 能够同时捕获光线的空间位置和入射角度,
然而其记录的光场存在空间分辨率和角度分辨率之间的制约关系, 尤其子孔径图像有限的空间 …

[PDF][PDF] A mini review of recent advances in optical pressure sensor

G Lee, H Kim, I Park - J. Sens. Sci. Technol., 2023 - jsstec.org
Innovative and advanced technologies, including robots, augmented reality, virtual reality,
the Internet of Things, and wearable medical equipment, have largely emerged as a result of …

Tomographic reconstruction of light field PIV based on a backward ray-tracing technique

L Cao, B Zhang, MDM Hossain, J Li… - … science and technology, 2021 - iopscience.iop.org
The calculation of the weight matrix is one of the key steps of the tomographic reconstruction
in the light field particle image velocimetry (light field PIV) system. At present, the existing …

Enhanced light-field image resolution via MLA translation

S Shi, H Zhou, C Yu, S Xu, R Wang, Y Ji, TH New… - Optics …, 2023 - opg.optica.org
This work describes a method that effectively improves the spatial resolution of light-field
images without sacrificing angular resolution. The method involves translating the microlens …

Pressure-sensitive paint integrated with digital image correlation for instantaneous measurement on rotating blades

Z Dong, Y Li, L Jiao, W Zhang, Y Liu, D Peng - Aerospace Science and …, 2022 - Elsevier
In wind tunnel tests, there is a strong demand for simultaneous pressure and deformation
measurement techniques, especially for objects with complex aerodynamic shapes or with …

Metric calibration of unfocused plenoptic cameras for three-dimensional shape measurement

Y Zhao, H Li, D Mei, S Shi - Optical Engineering, 2020 - spiedigitallibrary.org
A metric calibration method for light-field three-dimensional (3-D) reconstruction based on
plenoptic disk features is presented. Each of these features that relates to a single 3-D point …

Temperature corrected Pressure Sensitive Paint measurements on a flexible surface

M Gramola, PJ Bruce, MJ Santer - AIAA Scitech 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-0128. vid The temperature
sensitivity of Pressure Sensitive Paint (PSP) in supersonic wind tunnel experiments has …

Simultaneous measurement of surface shape and pressure using structured illumination

MK Quinn, TB Fisher - Measurement Science and Technology, 2020 - iopscience.iop.org
This article describes the successful implementation of a structured UV light field, generated
from a modified LCD projector, to excite pressure-sensitive paint (PSP) and measure surface …

Identification of pedestrians from confused planar objects using light field imaging

C Jia, F Shi, Y Zhao, M Zhao, Z Wang, S Chen - IEEE access, 2018 - ieeexplore.ieee.org
Recognizing a fake pedestrian on a planar surface (2-D fake pedestrian) is an essential and
challenging task in the field of machine vision because of its wide range of applications. In …