[CV] what are the specific numbers of convolution kernels (filters) 3*3, 5*5, 7*7 and 11*11?

ask ： Convolution kernel （ filter ）3×3、5×5、7×7、11×11 What are the specific numbers ？
answer ： In convolutional neural networks , The value of the convolution kernel given for the first time is random , In the process of forward propagation , Neural network will get loss, Generally, it is obtained from the number given randomly for the first time loss It's all relatively high , Then the neural network updates the number of convolution kernels according to the error , Then move forward again .

Reference resources ：
https://www.zhihu.com/question/265726926?sort=created
https://coding.imooc.com/learn/questiondetail/194279.html