COMPUTER GRAPHICS VIDEO SYNTHESIZING DEVICE AND METHOD, AND DISPLAY DEVICE

A CG image combining device generates a CG image by mapping an image to an object. A memory unit stores shape data and a pair of left-view and right-view image data. A determination unit refers to the shape data to evaluate a curvature of the object's surface from normal vectors of polygons constituting the object. Furthermore, the determination unit determines whether the object is suitable for stereoscopic image mapping by comparing the curvature with a threshold. A mapping unit (i) generates left-view CG data by combining the left-view image data with the shape data and generates right-view CG data by combining the right-view image data with the shape data, when the object is suitable for the mapping, and (ii) generates left-view CG data and right-view CG data by combining one of the left-view and right-view image data with the shape data, when the object is not suitable for the mapping.