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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Published on: February 12, 2014

Measurement improvement by high overlapping density subaperture stitching interferometry.

Hung-Sheng Chang, Chao-Wen Liang, Po-Chih Lin

|October 17, 2014

Summary

This summary is machine-generated.

This study introduces a vibration-modulated subaperture stitching interferometer for dynamic interferogram acquisition. The novel high overlapping density approach significantly reduces measurement uncertainty and enhances overall measurement quality.

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Last Updated: Apr 22, 2026

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Area of Science:

Optical Metrology
Interferometry
Precision Engineering

Background:

Traditional interferometry faces limitations in measurement speed and throughput.
Subaperture stitching interferometry offers a solution for large or complex surfaces but can be time-consuming.

Purpose of the Study:

To develop and validate a vibration-modulated subaperture stitching interferometer.
To investigate the benefits of high overlapping density in subaperture stitching for improved measurement quality and efficiency.

Main Methods:

Dynamic acquisition of interferograms using a vibration-modulated interferometer.
Application of high overlapping density subaperture stitching for capturing hundreds of subapertures in a single measurement.
Analysis of the averaging effect inherent in high overlapping density stitching.

Main Results:

Demonstrated high measurement throughput with dynamic interferogram acquisition.
Successfully acquired hundreds of overlapping subapertures in a single measurement.
Experimental validation of reduced measurement uncertainty and improved measurement quality.

Conclusions:

The vibration-modulated subaperture stitching interferometer effectively enhances measurement throughput.
High overlapping density significantly improves measurement quality and reduces uncertainty.
The proposed method is a viable solution for efficient and accurate metrology of complex surfaces.