Pulmonary nodule three-dimensional segmentation and feature extraction method and system thereof
A technology for feature extraction and pulmonary nodules, applied in the field of three-dimensional segmentation and feature extraction methods and systems for pulmonary nodules based on chest CT, can solve problems such as interference, reduce interference, reduce the probability of false positive nodules, and improve The effect of accuracy
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[0154] Several parameters are involved in the three-dimensional segmentation and feature extraction system of pulmonary nodules proposed by the present invention. These parameters should be comprehensively adjusted and set according to the characteristics of the specific processed data to achieve good performance of the overall system. The data processed by the present invention are listed here Parameters set for collections:
[0155] Step (2.1) When determining the scale range and the number of candidate scales of the shape-selective enhancement filter, the diameter range of the object to be enhanced is [d 0 = 3mm, d 1 =30mm], the number of candidate scales N 1 Take 5.
[0156] When step (2.3) selects the seed region on the three-dimensional multi-scale spherical selective enhancement filter image, the selected filtering threshold T 2 for 30. At the same time, the growth times threshold T 3 The value is 5.
[0157] Step (3.2) When judging whether the area surrounded by ...
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