Fig. 8From: Efficient and privacy-preserving image classification using homomorphic encryption and chunk-based convolutional neural networkDepiction of the model structure executing convolutional operations on image chunks. The illustrated convolutional network comprises a convolutional layer, a 2-layer activation function using a square function to introduce non-linearity, and two fully connected layers. The square function is employed to introduce non-linearity without impacting the receptive field of the convolutional layerBack to article page