Involutional Capsule Network for Dermoscopy Image Recognition
Dermoscopy image recognition can distinguish skin lesions and it is helpful for the early diagnosis of skin cancer.To enhance the efficiency of dermoscopy image recognition,an involutional capsule network(InvCNet)is proposed.InvCNet combines an involutional operation and a global attention mechanism(GAM),while the reconstruction part is removed.The involution operation provides rich minutiae to enhance the dermoscopy image features by fusing information of feature maps across channels.Meanwhile,GAM is employed to mitigate the loss of spatial information induced by the convolution and pooling operations and amplify the cross-dimensional interactions.Experiments on four public datasets demonstrate that InvCNet significantly reduces the number of network parameters while achieving superior performance on most datasets.