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Data sampling method of digital near infrared medical imaging and data treatment method

A medical imaging and data sampling technology, which is applied in the field of medical image processing, can solve the problems such as the sampling interval cannot be small, the stepper motor starts and stops frequently, and the sampling accuracy is affected, so as to save sampling time, reduce discomfort, and increase sampling points. Effect

Inactive Publication Date: 2005-10-26
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

When the sampling points are too dense, the stepper motor starts and stops too frequently, and may be stopped before reaching a stable running speed. The sampling speed is slow, the sampling interval cannot be small, and the sampling accuracy is affected.

Method used

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  • Data sampling method of digital near infrared medical imaging and data treatment method
  • Data sampling method of digital near infrared medical imaging and data treatment method
  • Data sampling method of digital near infrared medical imaging and data treatment method

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Embodiment Construction

[0034] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0035] In this sampling method, the motor moves while the probe samples. At the starting point of each column, the motor starts to start and moves along the Y direction and starts sampling at the same time.

[0036] 1. Determination of n points

[0037] Since the starting point of each column of the motor starts to move the probe at a certain speed, the probe is continuously sampling, but the data obtained during this period cannot be used to calculate the relative light intensity of each point. When processing data, do not use This piece of data should be "abandoned". Before the sampling starts, the number n of points sampled during the period from the beginning of the motor to the end of the start and the movement of the probe should be determined (that is, the number n of points that need to be discarded for each column).

[0038] Th...

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Abstract

The invented device is that sampling procedure is carried out, as sampling head is moving. The sampling points are still disperses on line locus in 'bow' shape, and the detect head without need of stopping at sampling point. In procedure of moving detect head, sampling is continuous. When scanning is completed, the sapling is also finished. Relevant data processing method is also included in the invention. According to number of points calculated, points in the line are evenly segmented. Approximate relative light intensity of a point is calculated from N continuous sampling values in each segment. Thus, the method saves time and increases sampled points to reduce discomfort of patients and increase resolution of images.

Description

technical field [0001] A data sampling method and a data processing method for digital near-infrared photomedical imaging belong to the technical field of medical image processing. Background technique [0002] In the medical field, to judge the lesion condition of a certain part of a patient, it is often necessary to analyze the blood and blood oxygen of the part. With the development of digital near-infrared technology, different human tissues can absorb By emitting infrared light to a certain part of the human body and obtaining the transmitted infrared light, and analyzing the received infrared light, the relevant parameters of the tissue of the part can be obtained, such as the absorption coefficient of the tissue, the scattering coefficient, etc., so that the temperature of the part can be obtained The image is helpful for distinguishing the lesion in this part. [0003] In the prior art, the image of the lesion can be acquired through such as figure 1 The system sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 白净张永红高天欣
Owner TSINGHUA UNIV
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