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

A medical imaging and data processing technology, applied in the field of medical image processing, can solve the problems of frequent start and stop of stepper motors, small sampling distance, and influence on sampling accuracy, etc., to save sampling time, reduce discomfort, and increase sampling points Effect

Inactive Publication Date: 2004-03-03
TSINGHUA UNIV
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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

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

Examples

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Example Embodiment

[0041] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0042] In this sampling method, the motor is moving while the probe is sampling. At the starting point of each column, the motor starts and moves in the Y direction at the same time to start sampling. 1. Determination of n points

[0043] Since the starting point of each column of the motor starts to have a certain speed to drive the probe movement, the probe is continuously sampling, but the data sampled during this period cannot be used to calculate the relative light intensity of each point. When processing the data, it is not used. This piece of data should be "discarded". Before the start of sampling, it is necessary to determine the number of points n sampled by the motor from the start of the start to the start of the start to drive the probe movement (that is, the number of points n that need to be discarded in each column).

[0044] The determination of n p...

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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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IPC IPC(8): G06F19/00
Inventor 白净张永红高天欣
Owner TSINGHUA UNIV
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