United StatesThe acronym DORI stands for Detection, Observation, Recognition, and Identification — standardized criteria that define the levels of detail a surveillance camera can provide at a specific distance, based on pixel density.
Detection: The image quality is sufficient for detecting a person or vehicle within the scene.
Observation: The image quality provides enough detail to observe characteristic features, such as clothing or shape.
Recognition: The image quality is sufficient to recognize whether a person or vehicle in the image is someone or something the viewer has seen before.
Identification: The image quality is sufficient to identify both the person and vehicles.