1. A method comprising: projecting a structured light pattern into a volume, the structured light pattern comprising a predefined structure having a plurality of features, each feature comprising a predefined variation; detecting light reflected from one or more objects in the volume, the detected light including one or more of the features of the predefined structure of the structured light pattern; correlating the one or more features in the detected light with the predefined structure; and determining depth information for objects associated with each of the one more features in the detected light based on the correlating.