New coronal pneumonia CT image segmentation method and terminal device

Abstract

The invention discloses a new coronal pneumonia CT image segmentation method and terminal equipment. The method comprises the following steps: acquiring a to-be-segmented new coronal pneumonia CT image; inputting the image into a trained segmentation model to obtain an image of a new coronal pneumonia focus area; wherein the segmentation model comprises a plurality of down-sampling modules connected in sequence and up-sampling modules corresponding to the down-sampling modules; each sampling module comprises a first extraction unit and a second extraction unit which are connected in sequence; the convolution modules of the two extraction units are structure re-parameterization convolution modules. According to the structural re-parameterization convolution module, a multi-branch structure is used during training, the expression ability of the model is enhanced, a single-path structure is used during reasoning, the reasoning speed is increased, and a diagnosis result is rapidly obtained. Meanwhile, in order to learn hierarchical representation from feature maps with different scales, the model is enhanced to extract image edge information and enable gradient to flow back more quickly, output on each side of up-sampling is connected with a mixed loss function, and pixel-level segmentation of the image is achieved.

Description

technical field [0001] The invention belongs to the technical field of medical image segmentation, and specifically relates to a novel coronavirus pneumonia CT image segmentation method and terminal equipment, especially a novel coronavirus pneumonia CT image segmentation method and terminal equipment based on structural reparameterization and multi-scale dynamic weight loss. Background technique [0002] The new coronavirus is mainly transmitted through the respiratory tract, and can also be transmitted through environmental contact. Studies have shown that COVID-19 is far more than a respiratory disease, but a multi-system disease that can cause damage to multiple human organs including the heart, kidneys, and nervous system. [0003] RT-PCR has been established as the gold standard for COVID-19 screening. RT-PCR (ReverseTranscription-Polymerase Chain Reaction) can obtain viral RNA in specimens through nasopharyngeal swabs, oropharyngeal swabs, bronchoalveolar lavage flui...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a new coronary pneumonia CT image segmentation method and terminal equipment, thereby solving the technical problem that it is difficult to accurately segment the new coronary pneumonia lesion area in the prior art

Images