Aim
Fruit category classification is important in factory packing and transportation, price prediction, dietary intake, and so forth.
Methods
This study proposed a novel artificial intelligence system to classify fruit categories. First, 2D fractional Fourier entropy with rotation angle vector grid was used to extract features from fruit images. Afterwards, a five‐layer stacked sparse autoencoder was used as the classifier.
Results
Ten runs on the test set showed our method achieved a micro‐averaged F1 score of 95.08% for an 18‐category fruit dataset.
Conclusion
Our method gives better micro‐averaged F1 score than 10 state‐of‐the‐art approaches.