Table 4 Protocol for image classification using original and super-resolved images.

From: Enhancing fetal ultrasound image quality and anatomical plane recognition in low-resource settings using super-resolution models

Step

Original images

Super-resolved images

Objective

Compare classification performance metrics (Accuracy, F1, Kappa) between original and super-resolved images using the ConvNeXT_base classifier.

Data acquisition

-Spanish dataset: zenodo.org/record/3904280 -African dataset*: zenodo.org/records/7540448 -Number of images: 12,400 (Spain), 100 (Algeria, Egypt, Malawi), 75 (Ghana, Uganda)

-From SR models: BSRGAN, DBPISR, Real-ESRGAN, SwinIR, SwinIR_Large applied to Spanish and African datasets*

Data preparation

-Augmentation: Yes -Image size: 448

-Super-resolution transformation: Enhances image quality before classification. -Augmentation and size: Same as original images

Models

-Classifier: ConvNeXT_base

-Classifier: ConvNeXT_base

Training

-Optimizer: Adam -Loss function: Cross_Entropy_Loss -Learning rate: 0.0001 -Epochs: 100 -Batch size: 32 -GPU: NVIDIA A6000 Ada (48GB)

-Same training parameters as original images

Evaluation

-Metrics: Accuracy, Kappa, F1-score

-Metrics: Same metrics as original images

  1. * African Dataset includes Algeria, Egypt, Ghana, Malawi, Uganda