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Optical imaging device and method for mammary gland based on image segmentation and time-frequency information fusion

An image segmentation and optical imaging technology, applied in image analysis, image enhancement, mammography, etc., can solve the problems of low reconstruction accuracy and low reconstruction efficiency, and achieve the effect of improving reconstruction accuracy, narrowing the scope, and reducing the number

Active Publication Date: 2019-08-23
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low reconstruction accuracy or low reconstruction efficiency by using a single model measurement signal in the existing simultaneous reconstruction process of breast optical distribution, and proposes a method based on image segmentation and time-frequency information fusion Breast optical imaging device and method

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  • Optical imaging device and method for mammary gland based on image segmentation and time-frequency information fusion
  • Optical imaging device and method for mammary gland based on image segmentation and time-frequency information fusion
  • Optical imaging device and method for mammary gland based on image segmentation and time-frequency information fusion

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specific Embodiment approach 1

[0040] Specific implementation mode one: combine figure 1 The present embodiment is described. The breast optical imaging device based on image segmentation and time-frequency information fusion provided in this embodiment specifically includes a laser controller 1, a laser head 2, a breast tissue to be measured 3, a data acquisition and processing system 7, and several Microlens array light field camera 4;

[0041] One end of the laser controller 1 is connected to the laser control signal output end of the laser head 2, and the other end of the laser controller 1 is connected to the data acquisition and processing system 7; the signal input end of the data acquisition and processing system 7 is connected with the microlens array light field camera simultaneously 4 is connected to the signal output end; wherein, the plurality of microlens array light field cameras 4 are on the same plane as the laser head 2, and are evenly distributed around the breast tissue 3 to be measured;...

specific Embodiment approach 2

[0042] Specific implementation mode two: combination figure 2 This embodiment will be described. The breast optical imaging method based on image segmentation and time-frequency information fusion provided in this embodiment specifically includes the following steps:

[0043] Step 1. Turn on the laser controller 1, make the frequency-modulated laser emitted by the laser head 2 incident on the breast tissue 3 to be measured (generally in vivo detection and imaging), and then rotate the breast tissue 3 to be measured clockwise to irradiate the frequency-modulated laser The next adjacent boundary surface of the current boundary surface of the breast tissue 3 to be tested is repeatedly rotated until the frequency-modulated laser emitted by the laser head 2 is incident once from each boundary surface of the breast tissue 3 to be measured;

[0044] Every time the laser head 2 emits a frequency-modulated laser, each microlens array light field camera 4 is used to collect the radiati...

specific Embodiment approach 3

[0068] Specific embodiment three: the difference between this embodiment and specific embodiment two is that the optical parameter distribution μ of the breast tissue to be measured includes an absorption coefficient field μ a and the scattering coefficient field μ s Two-part parameters, and the two-part parameter fields are reconstructed at the same time.

[0069] Other steps and parameters are the same as in the second embodiment.

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Abstract

The invention provides an optical imaging device and method for the mammary gland based on image segmentation and time-frequency information fusion and belongs to the technical field of near-infraredoptical chromatography imaging. The method comprises the steps that firstly, radiation intensity information in all directions of the boundary of the to-be-detected mammary gland tissue under the function of a frequency modulation laser and a pulse laser is acquired, and by simulating the infrared radiation transmission process in the to-be-detected mammary gland tissue under the function of the frequency modulation laser, a reconstructed image for optical parameter distribution under a frequency domain model is primarily obtained; then, a threshold value division method is used for dividing the reconstructed image, an optical parameter distribution initial value of a target area of a time-frequency model is obtained, and by simulating the infrared radiation transmission process under thefunction of the pulse laser, an internal structure of a target area of the mammary gland tissue is obtained. According to the optical imaging device and method, the problem is solved that in the priorart, in the reconstruction process for optical distribution of the mammary gland, a measurement signal of a single model is used for reconstruction, and the reconstruction precision or efficiency islow. The optical imaging device and method can be applied to reconstruction of a high-efficiency and high-precision mammary gland detection optical parameter field.

Description

technical field [0001] The invention relates to a mammary gland optical imaging device and method, and belongs to the technical field of near-infrared optical tomography. Background technique [0002] Near-infrared optical tomography uses near-infrared laser to irradiate the tissue body, and by measuring the transmitted light and reflected light signals on the surface of the tissue body, the distribution of optical parameters inside the tissue body can be reconstructed, which can realize the internal structure of biological tissue and the relative Effective detection of some abnormalities or changes in living organisms. Compared with traditional imaging techniques, near-infrared optical tomography uses a weak-intensity incident laser in the near-infrared band to perform non-destructive testing; the price is relatively low and does not require special maintenance, and it is cost-effective; the infrared imaging instrument has a simple structure and is easy to carry The applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00G06T7/194G06T7/11G06T7/136
CPCA61B5/0091A61B5/72G06T2207/10052G06T2207/30068G06T7/11G06T7/136G06T7/194
Inventor 齐宏赵方舟任亚涛阮立明
Owner HARBIN INST OF TECH
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