<human>:  I have a question about a topic in computer vision. How do you do object detection?
<bot>: Object detection is a problem in computer vision where you want to find a particular object in an image. There are many different approaches to this problem, but one of the most popular is to use a convolutional neural network. A convolutional neural network is a type of neural network that is designed to detect objects in images. It is a type of deep neural network that is made up of layers of convolutional filters that are applied to the image. The output of the convolutional neural network is a set of feature maps that represent the image. The feature maps are then used to detect the object in the image.