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Ultrasonic volume reconstruction method and device based on pose parameter regularization

A technology of pose parameters and ultrasound, applied in the field of medical image processing, can solve the problems of inconsistent accuracy, drift error, and unreliable measurement of reconstruction volume distance, etc., to achieve fast speed, low cost, and avoid obstructing the working space.

Pending Publication Date: 2022-05-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

While recent learning-based methods appear to outperform previous speckle decorrelation-based methods, their accuracy is inconsistent and suffers from unrecoverable drift errors
This can lead to problems such as making it impossible to reliably measure the distance of the reconstructed volume, which is required for some diagnostic procedures such as aneurysm detection

Method used

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  • Ultrasonic volume reconstruction method and device based on pose parameter regularization
  • Ultrasonic volume reconstruction method and device based on pose parameter regularization
  • Ultrasonic volume reconstruction method and device based on pose parameter regularization

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Embodiment Construction

[0025] Such as figure 1 As shown, this ultrasonic volume reconstruction method based on pose parameter regularization includes the following steps:

[0026] (1) Parameter initialization of the regularized model;

[0027] (2) Tracking data regularization processing: when two sets of tracking systems are used to track the same device target, only the tracking data needs to be regularized to suppress the continuous regularization of the tracking data and impose rigid trajectory constraints, and through the proximal mapping method Obtain more accurate tracking data results;

[0028] (3) Volume data construction: use the relevant information of the regularized two-dimensional ultrasound image sequence to determine the size specification of the reconstructed volume data, and determine the configuration related to the volume coordinates;

[0029] (4) 3D ultrasound voxel interpolation: convert from 2D ultrasound image to 3D volume data through forward mapping process;

[0030] (5) ...

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Abstract

According to the ultrasonic volume reconstruction method and device based on pose parameter regularization, high-quality three-dimensional bare-handed ultrasonic volume reconstruction can be obtained, and the method is high in implementation speed, low in cost, capable of avoiding hindering a working space and good in practicability. The method comprises the following steps: (1) initializing parameters of a regularization model; (2) regularizing the tracking data; (3) constructing volume data; (4) performing three-dimensional ultrasonic voxel interpolation; and (5) three-dimensional ultrasonic cavity completion.

Description

technical field [0001] The present invention relates to the technical field of medical image processing, in particular to an ultrasonic volume reconstruction method based on pose parameter regularization and an ultrasonic volume reconstruction device based on pose parameter regularization. Background technique [0002] In the past decade or so, image acquisition methods such as handheld 3D ultrasound or handheld SPECT have become more and more widely used. Among different implementations, the combination of imaging sensors and 3D tracking systems facilitates the generation of 3D volumetric images with relatively low-cost and convenient equipment. A key factor for the practical success of this imaging modality is the availability of affordable and sufficiently accurate tracking systems suitable for practical use, such as specific optical or electromagnetic (EM) tracking systems. [0003] However, a comprehensive solution is also needed in this regard: While optical tracking ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/08G06T15/10G06T5/00
CPCG06T15/08G06T15/10G06T2207/10012G06T2207/10088G06T5/77
Inventor 王涌天武潺杨健陈新宇
Owner BEIJING INSTITUTE OF TECHNOLOGYGY