Route planning nose environment modeling method and device

• Main Authors: AI DANNI, TU YUNHAI, FAN JINGFAN, SHI JIELIANG, YANG JIAN, WU WENCAN, SONG HONG
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATIONTECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING ORPROCESSING OF MEDICAL OR HEALTHCARE DATA; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; PHYSICS

According to the path planning nose environment modeling method and device, accurate construction of a nose environment map can be achieved. The method comprises the following steps: (1) carrying out filtering and denoising preprocessing on a CT image; (2) extracting edge point pairs of a segmentation target along the coordinate axis direction by using an axial region growing method and combining edge detection, calculating the distance between the edge point pairs, and growing to the edge of the target along the axial direction by taking a pixel point between the edge point pair with the maximum distance as a seed point, so as to realize rapid segmentation of important tissues and organs; and (3) extracting surface contours of important tissues and organs as obstacles and map boundaries, and performing three-dimensional surface reconstruction by using an improved Marching Cubes algorithm. 路径规划鼻部环境建模方法与装置，能够实现鼻部环境地图的精准构建。方法包括：(1)对CT图像进行滤波去噪预处理；(2)利用轴向区域生长法，结合边缘检测提取分割目标沿坐标轴方向的边缘点对，计算边缘点对之间距离，以距离最大边缘点对之间的像素点作为种