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3D Fourier ghost imaging via semi-calibrated photometric stereo.
Applied Optics
|February 24, 2022
Summary
Researchers developed a novel 3D computational ghost imaging technique using multiple photoresistors. This method achieves high accuracy for 3D reconstruction and surface normal estimation without special calibration.
Area of Science:
- Computational imaging
- Optical physics
- 3D reconstruction
Background:
- Traditional 3D imaging often requires complex setups or calibration.
- Single-pixel detectors are limited in capturing spatial information.
Purpose of the Study:
- To develop an adaptable and accurate 3D computational ghost imaging system.
- To utilize multiple photoresistors for spatial frequency domain imaging.
- To achieve high-fidelity 3D scene reconstruction.
Main Methods:
- Employed a semi-calibrated lighting approach with multiple photoresistors as single-pixel detectors.
- Performed imaging in the spatial frequency domain, capturing Fourier spectra at a 5% coverage ratio.
- Applied inverted, apodized, and semi-calibrated photometric stereo (SCPS) to spectra for depth map retrieval.
