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Global repair based method and system for assignment for vacant voxels in ultrasound volume data

A technology of vacant voxel and ultrasonic volume, applied in the medical field, can solve the problems of poor repairing effect of vacant voxel and achieve high-precision reconstruction

Inactive Publication Date: 2015-10-28
嘉恒医疗科技(上海)有限公司
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Problems solved by technology

However, the current three-dimensional reconstruction method of ultrasound images has the defect of poor filling effect of vacant voxels.

Method used

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  • Global repair based method and system for assignment for vacant voxels in ultrasound volume data
  • Global repair based method and system for assignment for vacant voxels in ultrasound volume data
  • Global repair based method and system for assignment for vacant voxels in ultrasound volume data

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0026] figure 1 It is a schematic flow chart of a method for assigning values ​​to vacant voxels in ultrasonic volume data based on global patching according to an embodiment of the present invention, and the specific steps include:

[0027] Step S1,

[0028] Traverse the ultrasound volume data, separate the vacant regions containing voxels without assignment, and extract the boundaries of the vacant regions.

[0029] Sequentially traverse each voxel in the ultrasound volume data. When a voxel is not assigned a value, judge all voxels in the adjacent area around the voxel. If there is an assigned voxel, then the unassigned voxel is vacant. Voxels on the boundary of the area; if all the voxels in the surrounding adjacent areas are not assigned, then the unassigned voxels are the voxel...

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Abstract

The invention discloses a global repair based method and system for assignment for vacant voxels in ultrasound volume data. The method comprises the steps of traversing the ultrasound volume data, separating vacant areas comprising non-assigned voxels, and extracting borders of the vacant areas; defining a data item and a smooth item, and calculating repairing weights of the non-assigned voxels; defining a cube area with the voxel with the largest repair weight as the center as an earliest repaired area, and seeking in the whole ultrasound volume data the area most similar to the earliest repaired area; repairing the non-assigned voxels in the earliest repaired area with the voxel gray value in the most similar area; and updating the vacant areas in the ultrasound volume data. Through adoption of the method, non-assigned voxels in the ultrasound volume data can be rapidly assigned accurately, so that high precision reconstruction of the ultrasound volume data can be realized.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method and system for assigning vacant voxels in ultrasonic volume data based on global repair. Background technique [0002] Ultrasound imaging is a method and technology that uses ultrasonic waves to irradiate the human body, and obtains visible images of the nature and structure of human tissue by receiving and processing echoes that carry characteristic information of human tissue. Together with CT and MRI, it is called the three major imaging studies of modern medicine. . Compared with CT and MRI, ultrasound imaging has the advantages of short acquisition time, no need for intravenous contrast agent, no ionizing radiation, economical and convenient, real-time imaging, etc., and has become an essential clinical diagnostic and therapeutic equipment. However, when doctors want to understand the structure of organs more accurately, traditional 2D imaging cannot meet the requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 郑重吴文波杨文晖赖暖翔
Owner 嘉恒医疗科技(上海)有限公司
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