Electromagnetic wave physiological movement imaging system

An imaging system and physiological technology, applied in the measurement of pulse rate/heart rate, etc., can solve the problems of high cost of equipment, risk of cancer, and damage to human health, and achieve the effects of low cost, strong anti-interference, and low radiation hazards

Inactive Publication Date: 2013-10-09
ZHEJIANG UNIV
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Problems solved by technology

Their common disadvantages include: (1) The cost of equipment is too high, such as the cost of standard nuclear magnetic resonance equipment is on the order of one million yuan; (2) Radiation is harmful to human health and has the risk of carcinogenesis
However, problems such as

Method used

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  • Electromagnetic wave physiological movement imaging system

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Embodiment approach

[0044] Such as figure 2 As shown, the RF front-end module is implemented using RF instruments produced by Agilent (including signal source E8267C, spectrum analyzer E4407B and vector signal analyzer 89600s).

[0045] The DC offset compensation module is programmed using Matlab, a scientific computing software launched by Math Works, and its structural block diagram is shown in image 3 shown. Among them, the least squares operator is implemented using the lsqcurvefit function.

[0046] The phase information extraction module is implemented using the difference and cross product module, and its structural block diagram is as follows Figure 4 shown. For the specific implementation method, please refer to the published patent application "A Method and System for Measuring the Motion Trajectory of an Object Using the Difference and Cross Product Module" (Application No.: 201210251616.7).

[0047] Physiological motion separation module is implemented by programming the scient...

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Abstract

The invention discloses an electromagnetic wave physiological movement imaging system which comprises a radio-frequency front end module, a direct-current offset compensation module, a phase information extraction module and a physiological movement separation module. The first output end and the second output end of the radio-frequency front end module are connected with the first input end and the second input end of the direct-current offset compensation module respectively, the first output end and the second output end of the direct-current offset compensation module are connected with the first input end and the second input end of the phase information extraction module respectively, the output end of the phase information extraction module is connected with the input end of the physiological movement separation module, and the first output end and the second output end of the physiological movement separation module are connected with the first output end and the second output end of the electromagnetic wave physiological movement imaging system respectively. Compared with the prior art, the electromagnetic wave physiological movement imaging system has the advantages of being low in cost, small in radiological hazard and high in anti-interference performance.

Description

technical field [0001] The invention relates to a motion imaging system, in particular to an electromagnetic wave physiological motion imaging system. Background technique [0002] Medical imaging, also known as medical imaging, is the process by which surgeons diagnose parts of the body that cannot be seen from the outside of the body. In the field of clinical medicine, this technology has an important role and significance in the diagnosis and treatment of diseases. Traditional medical imaging techniques mainly include computed tomography using X-rays and nuclear magnetic resonance. Their common disadvantages include: (1) The cost of equipment is too high, such as the cost of standard nuclear magnetic resonance equipment is on the order of one million yuan; (2) Radiation is harmful to human health and has the risk of carcinogenesis. [0003] In recent years, researchers at home and abroad have made great progress in the study of non-contact heart rate measurement using e...

Claims

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Application Information

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IPC IPC(8): A61B5/024
Inventor 王静雨冉立新
Owner ZHEJIANG UNIV
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