.png){kind=icon}
Return
Accurate single image depth detection using multiple rotating point spread functions
.png){kind=icon}
OA
AI
DOI：10.1364/OE.458541.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this article we present the simulation and experimental implementation of a camera-based sensor with low object-space numerical aperture that is capable of measuring the distance of multiple object points with an accuracy of 8.51 mu m over a range of 20 mm. The overall measurement volume is 70mmx 50mmx 20 mm. The lens of the camera is upgraded with a diffractive optical element (DOE) which fulfills two tasks: replication of the single object point to a predefined pattern of K spots in the image plane and adding a vortex point spread function (PSF), whose shape and rotation is sensitive to defocus. We analyze the parameters of the spiral phase mask and discuss the depth reconstruction approach. By applying the depth reconstruction to each of the K replications and averaging the results, we experimentally show that the accuracy of the reconstructed depth signal can be improved by a factor of up to 3 by the replication approach. This replication method (also called multipoint method) not only improves accuracy of depth reconstruction but also of lateral position measurement. Therefore, the presented concept can be used as a single camera 3D position sensor for multiple points with high lateral as well as depth resolution. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
MICROSCOPY
LOCALIZATION
GENERATION
RESOLUTION
SHOT
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W
Organization
Cited Papers
Single shot three-dimensional imaging using an engineered point spread function.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAIShareSaveVortex topographic microscopy for full-field reference-free imaging and testingOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAIShareSaveAxial super-localisation using rotating point spread functions shaped by polarisation-dependent phase modulationOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAIShareSaveShareSaveIsotropic 3D Super Resolution Imaging with Self-Bending Point Spread FunctionBIOPHYSICAL JOURNAL
BIOPHYSICAL JOURNALIF3.1
PREAI
ShareSaveShareSave
View more