Patent ID: 6879323

Claim:
A 3-D model generation device comprising: an input section for inputting a 2-D image; a memory section for storing a 3-D rough geometric model of a target object in the input 2-D image; and a 3-D model generation section for generating a 3-D model of the target object in the input 2-D image based on the 3-D rough geometric model, wherein the 3-D model generation section includes: a detection means for detecting a size, position, and direction of the target object in the input 2-D image; a first calculation means for calculating, when the 3-D rough geometric model is projected onto a 2-D plane in the detected size, position, and direction, the position of each vertex of the 3-D rough geometric model on the 2-D plane; a second calculation means for calculating, when the 3-D rough geometric model is projected onto the 2-D plane in a predetermined size, position, and direction, the position of each vertex of the 3-D rough geometric model on the 2-D plane; a texture image generation means for generating an approximate image as a texture image, the approximate image being approximate to an image obtained by projecting the target object onto the 2-D plane in the predetermined size, position, and direction, by modifying the input 2-D image based on a correspondence relationship between the position of each vertex of the 3-D rough geometric model calculated by the first calculation means and the position of each vertex of the 3-D rough geometric model calculated by the second calculation means; and means for mapping the texture image to the 3-D rough geometric model calculated by the second calculating means so as to generate a 3-D model of the target object.