CODEWITHSUNDEEP
tensorflowkerasconv-neural-networkcaffetheano
Deshwal
Deshwal

Reputation: 4152

Difference between Global Pooling and (normal) Pooling Layers in keras

Is there any significance difference between the Pooling layers. There are two types of Max and Average Pooling ( except 1,2,3-D ) basically named GlobalPooling and (normal)Pooling. In the documents provided by Keras, there is not so much difference and explanation provided.

What is the difference among the different layers?

Upvotes: 0

Views: 1743

Answers (1)

Natthaphon Hongcharoen
Natthaphon Hongcharoen

Reputation: 2430

Normal pooling layers do the pool according to the specific pool_size, stride, and padding. For example

inp = Input((224, 224, 3))
x = MaxPooling()(x)  # default pool_size and stride is 2

The output will has shape (112, 112, 3).

Global pooling is like, make the pool size equal to width and heigth, and do flatten. If input shape is (224, 224, 3) you will get a tensor shape (3), if input is (7, 7, 1024) you will get a (1024) .

Upvotes: 1

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