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Method for tracking features of ultrasound pattern and system thereof

A technology for ultrasonic images and features of interest, applied in the field of tracking image feature areas in tissue Doppler imaging, can solve problems such as error-prone, grayscale noise interference, interference, etc., to achieve strong robustness and improve accuracy Effect

Active Publication Date: 2010-12-29
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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Problems solved by technology

In M-mode image feature point tracking, simply using the gray similarity of adjacent regions for target tracking is easily disturbed by gray noise, and the robustness of the calculation results is also easily affected. Moreover, due to the complexity of myocardial movement, Errors are prone to occur, resulting in errors in calculation results, and are susceptible to interference from noise information in Doppler velocity information, thus affecting the accuracy and robustness of feature area tracking

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  • Method for tracking features of ultrasound pattern and system thereof
  • Method for tracking features of ultrasound pattern and system thereof
  • Method for tracking features of ultrasound pattern and system thereof

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Embodiment Construction

[0025] On the basis of the existing color Doppler M-mode ultrasound system, the present invention provides a new ultrasound image feature tracking method, which includes the following steps:

[0026] Set the initial feature region of interest;

[0027] Calculate the regional gray similarity to obtain the regional gray similarity parameter;

[0028] Read the Doppler velocity information in the feature region of interest, and establish constraints;

[0029] Combining the region gray similarity parameters and constraints, constructing a similarity metric, calculating the extremum of the similarity metric, and obtaining track point positions.

[0030] According to the description of the above process, it can be seen that the present invention utilizes both the regional gray similarity and the Doppler velocity information to construct a similarity measure, and considers the possible influence of the Doppler velocity information on the similarity measure on the basis of the regiona...

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Abstract

The invention discloses a method for tracking features of an ultrasound pattern and a system thereof. The method comprises the following steps: setting an initial region of features of interest; calculating the regional gray-scale similarity to obtain a regional gray-scale similarity parameter; reading Doppler velocity information in the region of features of interest, and establishing a constraint condition; and constructing a similarity measurement by combining the regional gray-scale similarity parameter and the constraint condition, and calculating the extreme value of the similarity measurement to obtain the position of a tracked track point. By combining the features of color Doppler tissue imaging, the invention effectively improves the accuracy and the robustness of tracking of the region of features.

Description

technical field [0001] The invention relates to the technical field of tracking image feature regions in tissue Doppler imaging, in particular to a design method and system for image feature tracking technology. Background technique [0002] M mode (Motion Mode) ultrasound is mainly used for heart and great vessel examination. M-mode ultrasound expands the intensity value of the myocardial motion echo signal along the time axis along the sound beam direction to form a distance-time curve. Because it traces the trajectory of the tissue structure of each layer of the heart through which the sound beam passes, it is also called M-mode echocardiogram (M-Ultrasound Cardiogram & Echocardiogram). According to the changes in valve shape, thickness, reflex strength, and activity speed, M-mode echocardiography can be used to diagnose mitral valve stenosis, valve vegetation, chordal rupture, and myocardial hypertrophy. It is used in conjunction with the electrocardiogram and is an im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/08G06F19/00
Inventor 李鑫丛龙飞
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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