CT image-based lung lobe segmentation method and device
A technology of CT images and lung lobes, which is applied in the field of image processing, can solve problems such as no lung lobes segmentation, and achieve the effect of saving time
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Example Embodiment
[0066] Method embodiment one:
[0067] See figure 1 This figure is a flowchart of Embodiment 1 of a method for segmentation of lung lobes based on CT images provided by the present invention.
[0068] The method for segmentation of lung lobes based on CT images provided in this embodiment includes the following steps:
[0069] Step 101: Extract a lung area from a CT image, and divide the lung area into a left lung area and a right lung area.
[0070] It should be noted that when taking a CT image of the lungs, the image of the chest is usually directly taken. Therefore, it is necessary to extract the lung area from the chest CT image and determine the boundary between the left lung area and the right lung area. After determining the area of the left and right lungs, the lung lobes can be segmented in the left and right lung areas. Generally, the lung area image extracted from the CT image, such as figure 2 Shown. The left lung area includes 2 lung lobes, and the right lung area i...
Example Embodiment
[0076] Method embodiment two:
[0077] The initial position of each lobe is connected to a bronchus. Following this physiological characteristic, this embodiment divides the airway into two levels. The first level is the trachea, and the second level is the bronchus. The end of the bronchi is used to find the initial position of each lung lobe. The following describes the lung trachea in the CT image Perform segmentation to determine the initial position of the lung lobe.
[0078] See Image 6 This figure is a flowchart of Embodiment 2 of the method for segmentation of lung lobes based on CT images provided by the present invention.
[0079] The lung lobe segmentation method provided in this embodiment includes:
[0080] Step 201: Extract the lung area from the CT image.
[0081] Step 202: Divide the lung area into a left lung area and a right lung area.
[0082] Step 203: segment the trachea and bronchus from the CT image of the lung area.
[0083] Step 202 and step 203 have no sequenc...
Example Embodiment
[0094] Method embodiment three:
[0095] Since there are many image points in the acquired CT image, some of the image points may be interference points caused by certain factors in the process of acquiring the CT image, and some points may be points on other organs of the human body. Such as local bright spots in cracks, signal points on blood vessel wall, etc. The above-mentioned image points will all cause interference in the process of extracting the crack points of the lung lobes. Therefore, in order to extract the crack points of the lung lobes more accurately, these interference points need to be suppressed.
[0096] See Figure 7 This figure is a flowchart of Embodiment 3 of the method for segmentation of lung lobes based on CT images provided by the present invention.
[0097] The CT image-based lung lobe segmentation method provided in this embodiment includes:
[0098] Step 301: Extract a lung area from a CT image, and divide the lung area into a left lung area and a right...
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