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3D Scanning Technology Bridging Microcircuits and Macroscale Brain Images in 3D Novel Embedding Overlapping Protocol

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Three-Dimensional Scanning Virtual Aperture Imaging with Metasurface.

Zhan Ou¹, Yuan Liang¹, Hua Cai¹

¹Huawei Technologies Co., Ltd., Chengdu 610000, China.

Sensors (Basel, Switzerland)

|January 11, 2025

Summary

This study introduces a scanning virtual aperture imaging system that overcomes limitations of traditional metasurface imaging. The novel approach enables high-resolution 3D reconstruction with simplified processing, enhancing imaging depth of field.

Keywords:

DOF RMA metasurface near field scanning

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Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages

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Published on: April 13, 2016

Area of Science:

Electromagnetic Imaging
Metasurface Technology
Computational Imaging

Background:

Metasurface imaging offers low cost and complexity but often requires complex processing and is limited to 2D.
Existing systems struggle with stochastic wavefront modulation and extensive post-processing.
A need exists for advanced metasurface imaging techniques capable of high-resolution 3D reconstruction.

Purpose of the Study:

To propose a novel scanning virtual aperture imaging system.
To overcome the limitations of conventional metasurface imaging, including 2D restrictions and complex post-processing.
To achieve high-resolution 3D imaging with improved depth of field.

Main Methods:

A focused beam is used for near-field focal plane scanning to form a virtual aperture.
An adapted range migration algorithm (RMA) with a time-delay pre-processing step is applied to the virtual aperture data.
A compact prototype system operating at 38-40 GHz was developed and tested.

Main Results:

The proposed system achieves high-quality 3D imaging without complex computational post-processing.
Simulations and experiments validate the effectiveness of the scanning virtual aperture approach.
The pre-processing step adds negligible computational time while leveraging near-field beamforming characteristics.

Conclusions:

The scanning virtual aperture imaging system provides a simplified yet effective method for high-resolution 3D imaging.
This technique significantly improves the imaging depth of field (DOF) for single-transceiver coherent systems.
The developed system demonstrates practical applicability and broad potential for various imaging applications.