1. A method for depth mapping, comprising: projecting a pattern of optical radiation onto an object; capturing a first image of the pattern on the object using a first image sensor, and processing the first image to generate pattern-based depth data with respect to the object; capturing a second image of the object using a second image sensor, and processing the second image together with another image to generate stereoscopic depth data with respect to the object; and combining the pattern-based depth data with the stereoscopic depth data to create a depth map of the object.