Image Retrieval

A computer vision technique that searches a database of images to find ones similar to a query image based on visual features rather than text metadata. In accessibility applications, image retrieval enables systems that can identify specific product instances (like a particular brand of cereal) by matching against a gallery of known items. Unlike deep learning classification, image retrieval systems can easily add new objects by simply adding images to the gallery without retraining, making them well-suited for personalized assistive technology.