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A Reflective Acoustic Holographic Imaging Method Based on Metasurface

A holographic imaging, reflective technology, applied in the field of holographic imaging, can solve problems such as holographic imaging deviation

Active Publication Date: 2022-06-24
东莞市鑫泰仪器仪表有限公司
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Problems solved by technology

[0003] The present invention provides a reflective acoustic holographic imaging method based on metasurfaces, which is used to solve the problem of holographic imaging deviation caused by acoustic wave interference when traditional technologies are applied in special scenarios

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  • A Reflective Acoustic Holographic Imaging Method Based on Metasurface

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Embodiment Construction

[0057] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0058] see figure 1 , an embodiment of the present invention provides a metasurface-based reflective acoustic holographic imaging method, including a reflective acoustic holographic imaging device, and the method includes:

[0059] Step S101: obtaining the working frequency of the reflection-type acoustic holographic imaging device, and determining the initial acoustic wave at the working frequency;

[0060] Step S102: the initial acoustic wave is vertically incident into the reflective acoustic holographic imaging device to obtain the reflected acoustic wave;

[0061] Step S103: input the reflected sound wave into the reflected sound wave correction model to obtain the correct...

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Abstract

The present invention provides a reflective acoustic holographic imaging method based on a metasurface, including a reflective acoustic holographic imaging device. The method includes: acquiring the working frequency of the reflective acoustic holographic imaging device, determining the initial sound wave at the working frequency; Vertically incident into the reflective acoustic holographic imaging device to obtain the reflected sound wave; input the reflected sound wave to the reflected sound wave correction model to obtain the corrected sound wave; reconstruct the target image on the imaging surface of the reflective acoustic holographic imaging device according to the corrected sound wave; the present invention The beneficial effect is: it is used to solve the problem that the traditional use of acoustic metasurfaces to directly generate a holographic sound field by designing a unit structure will cause deviations in holographic imaging due to acoustic wave interference when applied in special scenes.

Description

technical field [0001] The invention relates to the field of holographic imaging, in particular to a metasurface-based reflection-type acoustic holographic imaging method. Background technique [0002] Acoustic imaging and focusing have many important applications in modern science and industrial production, such as disease diagnosis, oil and gas exploration, source visualization, and microfluidic particle separation. , but these structures are often bulky and have limited imaging effects. It is necessary to arrange a large space behind the holographic film so that the influence of phantom imaging is at a certain distance from the background, creating a three-dimensional sense; holographic projection can completely record three-dimensional information and realize Three-dimensional imaging has received extensive attention; traditionally, the acoustic metasurface is used to directly generate a holographic sound field by designing the unit structure. However, when this type of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06N3/04G06N3/08G03H1/00
CPCG06T17/00G06N3/08G03H1/0005G03H2001/0088G06N3/045
Inventor 罗国栋
Owner 东莞市鑫泰仪器仪表有限公司
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