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Spatial smoothing method and system for color Doppler blood flow imaging

A color Doppler, spatial smoothing technology, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as difficulty in parameter debugging, border jaggedness, and difficulty to find.

Active Publication Date: 2021-07-06
聚融医疗科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual imaging process, it is often found that there are black holes and gaps inside the blood flow, and there are jagged borders and other problems, which ultimately reduce the quality of blood flow imaging.
[0003] Existing technologies include morphological dilation, erosion, opening operation, closing operation, top-hat transformation, bottom-hat transformation, etc., but the improvement effect of the above methods on blood flow is highly dependent on the setting of structural elements, depending on the structural elements. type and size, which brings difficulties to the actual parameter adjustment, it is difficult to find a set of parameters suitable for all imaging parts

Method used

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  • Spatial smoothing method and system for color Doppler blood flow imaging
  • Spatial smoothing method and system for color Doppler blood flow imaging
  • Spatial smoothing method and system for color Doppler blood flow imaging

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Embodiment 1

[0042] Such as figure 1 As shown, this embodiment provides a spatial smoothing method for color Doppler blood flow imaging, including the following steps:

[0043] S1. Construct a neighborhood template;

[0044] S2. Perform neighborhood matching analysis on the blood flow image according to the neighborhood template to obtain a matching template;

[0045] S3. Perform anisotropic smoothing processing on the blood flow image according to the matching template.

[0046] In step S1, the neighborhood template is constructed as follows:

[0047] The size of the neighborhood is set, denoted as N; wherein, N is an odd number not greater than 7, and N=3 in this embodiment.

[0048] Such as figure 2 As shown in 4, for all neighborhood templates when N=3, a neighborhood template T is constructed according to N, and the total number of neighborhood pixels is N 2 -1; when N=3, the neighborhood pixels are 8. For sawtooth smoothing, the combination of neighborhood pixels needs to have ...

Embodiment 2

[0061] Such as Figure 5 As shown, this embodiment provides a spatial smoothing system for color Doppler blood flow imaging, including:

[0062] Construction module 11, for constructing neighborhood template;

[0063] A matching module 12, configured to perform neighborhood matching analysis on the blood flow image according to the neighborhood template to obtain a matching template;

[0064] The smoothing module 13 is configured to perform anisotropic smoothing processing on the blood flow image according to the matching template.

[0065] Further, the matching module 12 includes:

[0066] The first matching module is used to judge whether there is a pixel value in the neighborhood of the pixel to be smoothed; if there is, the corresponding position value of the neighborhood feature R is 1; if not, then R is 0;

[0067] The second matching module is used to judge whether the neighborhood feature R of the pixel to be smoothed matches the neighborhood template T; traverse ea...

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Abstract

The invention belongs to the technical field of ultrasonic imaging, and particularly relates to a spatial smoothing method and system for color Doppler blood flow imaging, and the method comprises the following steps: S1, constructing a neighborhood template; S2, performing neighborhood matching analysis on the blood flow image according to the neighborhood template to obtain a matching template; S3, and performing anisotropic smoothing processing on the blood flow image according to the matching template; According to the method, the difficulty of parameter debugging is solved, the practicability is higher, different smoothing effects are achieved by designing different neighborhood templates, the flexibility is better, and the boundary sawteeth of the blood flow image are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic imaging, and in particular relates to a space smoothing method and system for color Doppler blood flow imaging. Background technique [0002] Color Doppler Flow Imaging (CDFI) is a basic ultrasound imaging mode. CDFI can display the spatial distribution of blood flow velocity in real time, and has important clinical value in the diagnosis of cardiovascular diseases. The fullness, continuity, and smoothness of blood flow are important evaluation indicators of CDFI. Ideally, there will be no obvious loss inside the blood flow, and it will not overflow to the outside of the blood vessel wall, that is, the blood flow boundary should be highly coincident with the blood vessel wall. However, in the actual imaging process, it is often found that there are black holes and gaps inside the blood flow, and there are jagged borders and other problems, which ultimately reduce the quality of blood flow imagi...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/10132G06T2207/10024G06T2207/30104G06T5/70
Inventor 肖梦楠
Owner 聚融医疗科技(杭州)有限公司
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