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Related Experiment Video

Updated: Jan 26, 2026

Imaging and Quantification of the Area of Fast-Moving Microbubbles Using a High-Speed Camera and Image Analysis
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Fast Volumetric Feedback under Microscope by Temporally Coded Exposure Camera.

Kazuki Yamato1, Toshihiko Yamashita2, Hiroyuki Chiba3

  • 1Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu 376-8515, Japan. kymt@gunma-u.ac.jp.

Sensors (Basel, Switzerland)
|April 17, 2019
PubMed
Summary

A new temporally coded exposure (TeCE) camera, paired with a tunable acoustic gradient index (TAG) lens, enables high-speed 3D measurements. This system achieves rapid focus tracking for real-time 3D information feedback.

Keywords:
feedback controlhigh-speed measurementthree-dimensional information

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Area of Science:

  • Optics and Photonics
  • High-Speed Imaging
  • 3D Measurement Systems

Background:

  • High-speed focus variations pose challenges for traditional imaging systems.
  • Achieving rapid 3D measurements requires advanced camera and lens synchronization.

Purpose of the Study:

  • To develop and evaluate a novel camera system for high-speed 3D measurements.
  • To address limitations in capturing dynamic focal planes with existing technologies.

Main Methods:

  • Development of a temporally coded exposure (TeCE) camera capable of multiple short exposures per shot.
  • Synchronous operation of the TeCE camera with a tunable acoustic gradient index (TAG) lens.
  • Implementation of photoelectron accumulation to maintain image brightness during short exposures.

Main Results:

  • The TeCE camera successfully coped with high-speed focus variations from the TAG lens.
  • High-speed acquisition of different focal planes was achieved.
  • Focus tracking experiments confirmed the system's feedback capability for 3D information.

Conclusions:

  • The TeCE camera integrated with a TAG lens enables high-speed 3D measurement.
  • This technology provides a viable solution for real-time 3D information feedback in dynamic environments.