An apparatus comprises a receiver (401) receiving a first image and associated first depth data captured by a first depth-sensing camera. A detector (405) detects an image position property for a fiducial marker in the first image, the fiducial marker representing a placement of a second depth sensing image camera. A placement processor (407) determines a relative placement vector indicative of a placement of the second depth sensing image camera relative to the first depth-sensing camera in response to the image position property and depth data of the first depth data for an image position of the fiducial marker. A second receiver (403) receives a second image and second first depth data captured by the second depth sensing image camera. A generator (409) generates the representation of at least part the scene in response to a combination of at least the first image and the second image based on the relative placement vector.