Patent ID: 8059120
Filing Date: 2011-11-15
Classification: G06T

Abstract:
1. An image process apparatus for a three-dimensional (3D) model, comprising: a cross-sectional image cutout unit to cut out a plurality of cross-sectional images from surface data of a 3D model of a product; a cross-sectional image process unit to separate a cross-sectional image that is cut out by the cross-sectional image cutout unit into component area and gap area; a three-dimensional grid data generation unit to generate 3D grid data by layering cross-dimensional images obtained by the cross-sectional image process unit; and a three-dimensional model generation unit to generate a 3D model of a gap space of the inside of the product using 3D grid data generated by the three-dimensional grid data generation unit, wherein said cross-sectional image process unit extracts border lines from the cross-sectional image, calculates a convex hull structure from the border lines and generates a convex hull external structure, extracts a part, which is depressed relative to the convex hull external feature, from the convex hull external feature and the border lines, calculates a depth of the depressed part relative to the convex hull external feature by calculating a distance from said convex hull external feature to the border lines in a vertical direction to a segment of said convex hull external feature, and selects a border line as an external feature if the depth is less than a threshold value, while selects the convex hull external feature as an external feature if the distance is equal to or more than the threshold value.