Method and system for constructing human body internal and external respiration integrated model based on CT image

• Main Authors: XUE YUAN, SONG WEI, ZHANG JINHUA, LIN JIE, CUI XINGUANG, FENG YANING, GUAN HANXIONG, WANG JINTAO, HU YUNA
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a method and system for constructing a human body internal and external respiration integrated model based on a CT image, and belongs to the field of medical image three-dimensional modeling. The method comprises: obtaining a CT image of the upper body of a stable breathing target object, and obtaining a model in a dicom format; performing three-dimensional reconstruction on the model in the dicom format to obtain a three-dimensional model in an stl format, which comprises a nasal cavity, an oral cavity, a throat pipe, a trachea and each stage of bronchus; repairing and smoothing the three-dimensional model in the stl format to obtain a Nurbs curved surface model in the iges format; segmenting the Nurbs curved surface model in the iges format by referring to the physiological structure of the human respiratory tract to obtain a three-dimensional human respiratory tract model in the iges format; and integrally splicing the three-dimensional human body shell model and the three-dimension