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Left and right ear region segmentation method based on temporal bone CT horizontal scanning image

A region segmentation and CT image technology, applied in the field of medical image processing, to achieve the effect of avoiding interference, fast calculation speed, simple and effective method

Active Publication Date: 2020-06-30
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no special algorithm for the segmentation and extraction of left and right ear regions from temporal bone CT images

Method used

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  • Left and right ear region segmentation method based on temporal bone CT horizontal scanning image
  • Left and right ear region segmentation method based on temporal bone CT horizontal scanning image
  • Left and right ear region segmentation method based on temporal bone CT horizontal scanning image

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] For an input temporal bone CT picture I, the left and right ear regions are segmented and extracted. The specific steps are:

[0030] (1) Use the threshold T=500 to perform effective area binarization on I to obtain a binarized feature map. Calculate the upper boundary UP, lower boundary DOWN, left boundary LEFT, and right boundary RIGHT of the effective area according to the feature map. Crop I according to the boundary, and use the Bicubic algorithm to interpolate the CT image of the effective area after clipping to enlarge it to 512×512;

[0031] (2) Cropping of left and right ear regions and discarding of irrelevant regions. The range of the right ear area is: the upper boundary up takes 200, the lower boundary down takes 300, and the left boundary left r Take 1, the right boundary right r Take 250; the range of the left ear area is: the upper boundary up takes 200, the lower boundary down takes 300, and the left boundary left l Take 263, the right boundary rig...

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Abstract

The invention belongs to the technical field of medical image processing, and particularly relates to a left and right ear region segmentation method based on a temporal bone CT horizontal scanning image. The method is used for segmenting a left ear region and a right ear region in a head temporal bone CT image, so a computer can intensively perform subsequent processing on the ear regions. The method sequentially comprises the following steps: removing an invalid region of a head CT image; cutting out a left ear area and a right ear area in the image according to the proportion; sorting and storing the left ear area image and the right ear area image respectively. Experimental results show that for a horizontally scanned temporal bone CT image, the method can eliminate invalid black areas, discard information of other irrelevant parts and accurately extract left and right ear areas.

Description

technical field [0001] The invention belongs to the technical field of medical image processing, in particular to a method for segmenting left and right ear regions based on temporal bone CT plain scan images. Background technique [0002] With the development of computer science, intelligent medical care has become a major technological innovation to improve the level of modern medical care. Its advantages in various aspects are getting more and more recognition and attention. Among them, medical image processing technology is one of the key parts to promote the development of intelligent medical care, and it is also a very important application link of intelligent medical care. [0003] In the application scenario of CT imaging diagnosis in otology, doctors can only obtain CT images of the entire temporal bone at this stage, so as to diagnose the patient's ear lesions. However, when doctors actually make a diagnosis, they only observe and base on the ear area in the CT i...

Claims

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Application Information

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IPC IPC(8): G06T7/11G06T7/136
CPCG06T7/11G06T7/136G06T2207/10081G06T2207/20132G06T2207/30008
Inventor 王云峰颜波李健李吉春谭伟敏
Owner FUDAN UNIV
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