Abstract: Devices and techniques are generally described for image-guided three dimensional (3D) modeling. In various examples, a first two-dimensional (2D) image representing an object may be received. A first three-dimensional (3D) model corresponding to the first 2D image may be determined from among a plurality of 3D models. A first selection of a first portion of the first 2D image may be received. A second selection of a second portion of the first 3D model corresponding to the portion of the first 2D image may be received. At least one transformation of the first 3D model may be determined based at least in part on differences between a geometric feature of the first portion of the first 2D image and a geometric feature of the second portion of the first 3D model. A modified 3D model may be generated by applying the at least one transformation to the first 3D model.