Feature Map (Activation Map)

What is Feature Map (Activation Map)?

The output of a convolutional layer. It represents the 'response' of a filter at every spatial position, showing where a specific feature was found.

Where did the term "Feature Map (Activation Map)" come from?

Result of the convolution operation.

How is "Feature Map (Activation Map)" used today?

Visualizing feature maps shows what the AI 'sees'.

Related Terms

• Convolutional Neural Network (CNN)
• Kernel (Filter)