Object detection is a computer vision technology used to detect and locate objects within an image or video stream. It involves identifying and classifying objects within an image, typically by drawing bounding boxes around them and labeling them with corresponding class labels. Object detection is used in various applications, such as autonomous vehicles, surveillance systems, and augmented reality. It is typically achieved using deep learning techniques such as Convolutional Neural Networks (CNNs) and can be performed in real-time on a variety of devices.