1. A method for generating a 3D digital representation of an object of interest, the method comprising: a) receiving, into a computer, a plurality of 2D digital images of a scene, wherein: i) the scene includes at least one object of interest, wherein the at least one object of interest has a plurality of dimensions; ii) at least a portion of the plurality of the 2D digital images of the scene are overlapping with regard to the at least one object of interest; and iii) the plurality of 2D digital images are generated from a single passive image-capture device; b) processing, by the computer, at least a portion of the plurality of overlapping 2D digital images that includes the at least one object of interest using a 3D reconstruction process that incorporates a structure from motion algorithm, thereby generating a 3D digital representation of the at least one object of interest; c) obtaining, using the computer, measurements of at least one of the plurality of dimensions of the at least one object of interest from the 3D digital representation; d) selecting at least one dimension of the plurality of dimensions of the at least one object of interest, wherein each of the selected at least one dimension, independently, comprises an actual measurement value; e) extracting measurement data from the selected at least one dimension; and f) processing the extracted measurement data to provide an extracted measurement value for each of the selected at least one dimension.