1. A computing device, comprising: a rear-facing camera; two or more front-facing cameras; at least one processor; and memory including instructions that, when executed by the at least one processor, cause the computing device to: capture a first image with the computing device positioned between an object and a user using the rear-facing camera, the first image containing a first representation of the object; determine a first distance between the computing device and at least a portion of a user's face at a time of capturing the first image, the first distance determined based at least in part on image data captured by the two or more front-facing cameras; capture a second image with the computing device positioned between the object and the user using the rear-facing camera, the second image containing a second representation of the object; determine a second distance between the computing device and the at least a portion of the user's face at the time of capturing the second image, the second distance determined based at least in part on image data captured by the two or more front-facing cameras; compute a scale change of the object between the first representation of the object in the first image and second representation of the object in the second image; and determine depth information associated with the object based at least in part on the first distance, the second distance and the scale change of the object.