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Increasing the acquisition speed in oblique plane microscopy via Aliasing.

Conor McFadden1, James Manton2, Reto Fiolka1

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Oblique plane microscopy (OPM) can be accelerated by controlled under-sampling, enabling faster 3D imaging. This technique recovers aliased data without losing resolution, significantly speeding up subcellular imaging of mitochondrial dynamics.

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Area of Science:

  • Biomedical Imaging
  • Microscopy Techniques
  • Cell Biology

Background:

  • Oblique plane microscopy (OPM), a variant of light-sheet fluorescence microscopy (LSFM), offers rapid volumetric imaging.
  • Current OPM methods require small scanning steps to satisfy Nyquist sampling, limiting acquisition speed and increasing sample exposure.

Purpose of the Study:

  • To investigate if controlled under-sampling in OPM can accelerate image acquisition without compromising spatial resolution or introducing artifacts.
  • To demonstrate the feasibility of leveraging under-sampling for rapid subcellular 3D imaging.

Main Methods:

  • Implementation of controlled under-sampling in an OPM system.
  • Development of a recovery method to correct aliasing introduced by under-sampling.
  • Application of the accelerated OPM technique for imaging mitochondrial dynamics.

Main Results:

  • Judicious under-sampling in OPM leads to recoverable aliasing.
  • Spatial resolution and image quality are maintained post-recovery.
  • Acquisition speed is increased 2-4 fold, depending on optical parameters.

Conclusions:

  • Controlled under-sampling is a viable strategy to enhance OPM acquisition speed.
  • This method enables rapid subcellular 3D imaging of dynamic biological processes like mitochondrial movement.