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Related Experiment Video

Updated: Aug 12, 2025

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Cascaded compressed-sensing single-pixel camera for high-dimensional optical imaging.

Jongchan Park¹, Liang Gao¹

¹Department of Bioengineering, University of California, Los Angeles, CA, USA.

Research Square

|January 30, 2023

Summary

This summary is machine-generated.

Single-pixel detectors can now image complex scenes using a novel cascaded compressed-sensing camera. This technology efficiently captures high-dimensional optical data, enabling advanced applications like hyperspectral imaging.

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Last Updated: Aug 12, 2025

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Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

Area of Science:

Optical Sciences
Computational Imaging
Photonics

Background:

Single-pixel detectors offer speed, sensitivity, and low cost but struggle with high-dimensional imaging due to their zero-dimensional nature.
Acquiring high-dimensional optical field information is a fundamental challenge for single-pixel sensors.
Compressibility of natural scenes in multiple domains is key to efficient data acquisition.

Approach:

Developed a cascaded compressed-sensing single-pixel camera.
Implemented a multi-stage measurement scheme to sequentially reduce data dimensionality.
Leveraged scene compressibility across multiple domains for efficient data capture.

Key Points:

Demonstrated a novel approach to overcome the limitations of single-pixel detectors in imaging.
Enabled tunable single-pixel full-waveform hyperspectral light detection and ranging (LIDAR).
Achieved highly efficient data acquisition by exploiting multi-domain scene compressibility.

Conclusions:

The cascaded compressed-sensing camera significantly enhances the imaging capabilities of single-pixel detectors.
This method opens new possibilities for advanced optical sensing and measurement.
Paved the way for novel applications in hyperspectral imaging and LIDAR.