Max PoolingIt is a commonly used pooling operation that reduces the amount of data by maximizing the value. Its usual operation is to divide the input image into several rectangular areas and output the maximum value for each subdomain.

At present, the commonly used pooling methods include maximum pooling and average pooling, which reduces the complex calculations from the upper hidden layer, is not affected by the tilt or rotation of the target, and can effectively reduce the sampling method of data dimension.