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Updated: Sep 29, 2025
08:41
Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
Published on: August 16, 2012
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A constrained method for lensless coherent imaging of thin samples.
Applied Optics
|March 25, 2022
Summary
Lensless inline holography achieves high resolution over a large field of view (FoV). This study presents a reconstruction method for enhanced resolution and extrapolated FoV from low-resolution intensity measurements.
Area of Science:
- Optics and Photonics
- Digital Imaging
- Holography
Background:
- Lensless inline holography offers high-resolution imaging over a large field of view (FoV).
- Previous research demonstrated FoV extrapolation and resolution enhancement beyond camera limits.
Purpose of the Study:
- To present a novel reconstruction method for lensless inline holography.
- To recover high-resolution phase and amplitude images from aliased, low-resolution intensity data.
- To achieve an extrapolated field of view in holographic reconstructions.
Main Methods:
- Development of a reconstruction algorithm for aliased intensity measurements.
- Application of the method to lensless inline holographic data.
- Processing of low-resolution intensity data to yield high-resolution phase and amplitude images.
Main Results:
- Successful recovery of high-resolution phase and amplitude information.
- Demonstration of image reconstruction with an extrapolated field of view.
- Validation of enhanced resolution beyond the original camera's capabilities.
Conclusions:
- The presented reconstruction method effectively enhances resolution and extrapolates the field of view in lensless inline holography.
- This technique allows for high-quality imaging from lower-resolution, aliased data.
- It expands the practical applications of lensless inline holographic imaging.
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