Single shot image based depth mapping

摘要

#$%^&*AU2011265379A120130704.pdf#####ABSTRACT SINGLE SHOT IMAGE BASED DEPTH MAPPING 5 Disclosed is a method (100) for determining distance (140) to an object (235) in a scene from a camera (1501, 200), the camera having captured an image of the scene. The method provides (110) the image of the scene, the image being captured through a masked lens (205,215) of the camera, the masked lens having an intensity point spread function 10 (IPSF), the autocorrelation of which produces an image with a plurality of compact elements (611-616) wherein a position for at least one of the compact elements varies according to the distance to be determined. A set of reference data (150) is received (700) with each data of the set having an associated distance value and being formed from an autocorrelation (725) of the point spread function (720) for a point object at the associated 15 distance value. The method forms test data (828) based on an autocorrelation (820) of a selected region (810) of the captured image (120) and forms (830) a series of distance estimates (835) based on matching measures determined between the test data and a subset of the reference data at each of the associated distance values. The method estimates (840) the distance (850) of the object using the set of distance estimates from the selected subsets 20 of reference data. P015750_specijodge1/20 100 120 Sart 110 End0 140 Fig. 1 5846326_1 P01 5750_figslodge