1. A method for obtaining an improved depth precision for a stereo image of an object of interest, comprising: imaging a first image of said object of interest from a first position; imaging a second image of said object of interest from a second position different from said first position; determining a rough estimate of a depth for said object of interest based on the first image and the second image; determining an improved set of imaging positions corresponding to an improved depth precision for said object of interest based on said rough estimate of said depth; imaging improved images from said improved set of imaging positions; and determining an improved depth based on said improved images.