An Image Recognition Method Based on Improved Focal Loss Function
A loss function and image recognition technology, which is applied in the field of multi-label image recognition, can solve the problems of not fully utilizing all samples, lack of partial sample data, and huge calculation amount, so as to reduce the amount of calculation, increase the loss value, and reduce the loss value. Effect
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[0028] In order to illustrate the technical solution of the present invention more clearly, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings:
[0029] The present invention proposes an image recognition method based on the improved Focal loss function, such as figure 1 shown, including the following steps:
[0030] Step 1: First divide the samples into training set, test set and remaining sample set, and then use the training set to train the convolutional neural network model based on the improved Focal loss function.
[0031] Train an improved model M based on Focal loss, such as figure 2As shown, the convolutional neural network model has five hierarchical structures: input layer, convolutional layer, activation layer, pooling layer, and fully connected layer. In this convolutional neural network structure, the input layer inputs image information, and the size of each image is 128*128. Th...
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