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Related Experiment Video

Updated: May 14, 2026

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Published on: April 12, 2014

Drift correction in ptychographic diffractive imaging.

Mike Beckers¹, Tobias Senkbeil, Thomas Gorniak

¹Applied Physical Chemistry, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany.

Ultramicroscopy

|February 7, 2013

Summary

This summary is machine-generated.

Mechanical drift in X-ray ptychography (a phase retrieval technique) can degrade image quality. This study presents a systematic method to correct positional drift, significantly improving reconstruction of affected datasets.

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Area of Science:

Coherent diffractive imaging
Phase retrieval techniques
X-ray microscopy

Background:

X-ray ptychography is a powerful imaging technique for extended specimens.
High positional accuracy is crucial for data collection in ptychography.
Mechanical drift is a common issue that compromises reconstruction quality and resolution.

Purpose of the Study:

To address the challenge of mechanical drift in X-ray ptychography.
To develop a systematic method for correcting positional errors during ptychographic scans.
To demonstrate the effectiveness of drift correction on reconstruction quality.

Main Methods:

Development of a simple mathematical model for positional drift.
Systematic determination of corrected scan positions.
Application of the correction method to a Siemens star dataset.

Main Results:

Significant improvement in the reconstruction of a Siemens star dataset.
Demonstrated reduction in the negative impact of mechanical drift.
Validation of the proposed drift correction strategy.

Conclusions:

The developed method effectively corrects for mechanical drift in X-ray ptychography.
Systematic drift correction enhances achievable resolution and reconstruction quality.
This approach offers a practical solution for improving ptychographic data.