Object detection is a broad area of computer vision that can be used to create autonomous systems that guide agents through environments, whether they are robots carrying out tasks or detecting objects, but this requires crossroads with other fields. However, anomaly detection locating objects within images, face image detection, and various other applications of detecting objects can be done without cutting into other fields.
Object detection is not only formalized in image detection, but substantially so because most of the new developments are generally done by individual experimenters, maintainers, and inventors rather than by large libraries and frameworks.