Explainable automated recognition of emotional states from canine facial expressions: the case of positive anticipation and frustration

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    The authors used the dataset and DogFACS annotations generated as part of a previous study by Bremhorst et_al22. The subjects were located behind a transparent window using the protocol which is fully described in Bremhorst et_al22. After a pre-processing step of extracting cropped dogs faces from the frames (see Fig 2 for examples), in the deep approach the raw cropped faces are taken as input by a neural_network. The authors experiment here with neural_network architectures of two types: convolutional neural_network ­(Resnet5056) and the recently introduced vision ­transformer57 (ViT) network. The set of the . . .

     

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