Rapid imaging method for ultra-wide band microwave detection based on Hilbert-huang transformation

An imaging method and microwave detection technology, applied in diagnostic recording/measurement, special data processing applications, medical science, etc., can solve the problems of human radiation damage, high cost, and low imaging contrast

Inactive Publication Date: 2014-05-21
TIANJIN UNIV
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Problems solved by technology

Currently commonly used detection methods for early breast cancer include mammography, ultrasound imaging technology, computed tomography, nuclear magnetic resonance imagin

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  • Rapid imaging method for ultra-wide band microwave detection based on Hilbert-huang transformation
  • Rapid imaging method for ultra-wide band microwave detection based on Hilbert-huang transformation
  • Rapid imaging method for ultra-wide band microwave detection based on Hilbert-huang transformation

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Embodiment Construction

[0021] In order to effectively utilize the ultra-wideband microwave detection system to detect breast tumors, the invention provides a new ultra-wideband microwave imaging algorithm. The algorithm is simple and fast, and can clearly display the size and location information of the tumor. Due to the existence of a large number of glandular tissues and capillaries in breast tissue, which will have a certain impact on the imaging results, the Hilbert-Huang transform method can reduce the noise and obtain tumor information more quickly. The imaging results of this algorithm can intuitively realize the judgment and location of tumor existence and size. Ideal for breast tumor detection systems.

[0022] The signal of tumor detection by ultra-wideband microwave belongs to nonlinear and non-stationary signal. The Hilbert-Huang transform method is a method mainly used for non-stationary signal analysis proposed by Chinese scientist Huang E et al. after in-depth research on the concep...

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Abstract

The invention relates to ultra-wide band microwave imaging, ultra-wide band wireless detection, biomedical detection equipment and microwave detection, and in particular to a rapid imaging method for ultra-wide band microwave detection based on Hilbert-huang transformation. According to the method, biological information can be displayed simply, conveniently, rapidly and obviously. According to the technical scheme, the rapid imaging method includes the following steps that an antenna Ai is used for emitting ultra-wide band microwave signals, and other antennas are used for receiving reflecting signals from the inner portion of one breast so as to obtain signals containing tumor information and signals containing no tumor information; tumor response signals are obtained by subtracting the signals containing no tumor information from the signals containing the tumor information, Hilbert transform is conducted on all the obtained tumor response signals, the signals are constructed into analytical signals, and then the instantaneous amplitude of the signals is obtained; for a breast area, scanning is conducted on each point in an imaging area through a confocal imaging method, and the position and size information of a tumor is obtained clearly. The rapid imaging method is mainly used for designing and manufacturing medical apparatuses and instruments.

Description

technical field [0001] The invention relates to ultra-wideband microwave imaging, ultra-wideband wireless detection, biomedical detection equipment, and microwave detection, and specifically relates to a fast imaging method for ultra-wideband microwave detection based on Hilbert-Huang transform. Background technique [0002] Breast cancer is the malignant tumor disease with the highest incidence rate in women, and its mortality rate ranks first in the mortality rate of malignant tumors in women. The diagnosis of early breast tumors is undoubtedly of decisive significance for improving the treatment rate of breast disease and the long-term survival rate of patients. Currently commonly used detection methods for early breast cancer include mammography, ultrasound imaging technology, computed tomography, nuclear magnetic resonance imaging technology, thermal imaging detection, etc., but many methods have certain shortcomings, such as radiation damage to the human body, The ima...

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Application Information

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IPC IPC(8): A61B5/00G06F19/00
Inventor 肖夏李钦伟
Owner TIANJIN UNIV
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