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Updated: Dec 28, 2025

Imaging Local Ca2+ Signals in Cultured Mammalian Cells

Imaging Local Ca2+ Signals in Cultured Mammalian Cells

Published on: March 3, 2015

Single-pixel imaging using caustic patterns.

Ermes Toninelli¹, Daan Stellinga¹, Bereneice Sephton²

¹School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, UK.

Scientific Reports

|February 12, 2020

Summary

This summary is machine-generated.

Single-pixel imaging can now use projected caustic patterns instead of complex masks. This novel approach offers a versatile alternative for imaging across various scales and wavelengths.

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Area of Science:

Optics and Photonics
Computational Imaging

Background:

Single-pixel imaging reconstructs images using a single-pixel detector and a time-varying mask.
Current methods often rely on sophisticated spatial light modulators, limiting their applicability across different scales and wavelengths.

Purpose of the Study:

To introduce a novel method for single-pixel imaging using projected caustic patterns.
To demonstrate the potential of caustics as an alternative to traditional masks in single-pixel imaging.

Main Methods:

Utilizing sequences of projected caustic intensity patterns as the basis for image reconstruction.
Generating caustics with simple, slowly varying random phase masks.

Main Results:

Successfully demonstrated single-pixel imaging using projected caustics.
Caustics can be formed with readily available materials like random phase masks.

Conclusions:

Projected caustics offer a viable and potentially more accessible alternative for single-pixel imaging.
This method expands the potential applications of single-pixel imaging to diverse lengthscales and wavelengths.