Fig. 1
From: Evaluation of lung involvement in COVID-19 pneumonia based on ultrasound images
The Grad-CAM++ visualization results. The blue, red, and green backgrounds represent the Mindray dataset, Stork dataset, and Philips dataset, respectively. a Original input (the actual data are not marked with a red circle); b ResNeXt, and; c MCRFNet. The red circle is the lung consolidation area