1. A method for mapping a location of each of a plurality of devices in a data center, the method comprising: receiving image data comprising an image of at least a portion of the data center from a source; processing the image data to locate visual identifiers displayed in the image, wherein each of the visual identifiers is associated with one of the devices or with a spatial reference point; extracting the located visual identifiers and determining spatial coordinates for each of the identified visual identifiers from the image; determining the spatial reference points from the image; developing groups based on extracted visual identifiers and spatial coordinates thereof and the spatial reference points, wherein allowances are made for an angle of the image, wherein each group comprises a subset of related ones of the devices; for each group, comparing each of the visual identifiers of the group with a key to determine information regarding the associated device to obtain processing results; and combining processing results corresponding to multiple images to remove redundant information and produce final results.