Abstract: A method for enabling to use an Image-Based Rendering (IBR) technology in Animation Framework extension (AFX) technology is provided. In the method for representing an object in a 3D scene using an IBR technology in the 3D scene, image information and depth information on each point of the image are used, or image information and a depth information array of all points projected on each point onto a plane of the image or a color information array of each point are used. In the method, by defining expression methods for GBT, LDI, and Octree that are simple method among IBR technologies having geometric information, those methods can be used in the MPEG-4 AFX.

Abstract: Provided are three-dimensional still and animated object representations obtained from photos of real-life objects and their geometrical representations, allowing compact storage, fast rendering with high output image quality, suitable for animation purposes. The method includes transforming original data of a three-dimensional object into an intermediate representation; transforming data of the intermediate representation into a rendering representation in the form of a circumscribing cube, where a layered depth image is attributed to each face of the circumscribing cube, and rendering the obtained representation by determining visible faces of the circumscribing cube with account of the viewer's position, transforming the layered depth image for each of the visible faces into a texture, and visualizing the visible faces with texture.

Abstract: A method and apparatus removing redundant data of a simple texture model, using an extended depth image, and an image-based editing method and apparatus. The method involves calculating normal vectors of pixels projected into a three-dimensional (3D) space by using depth images among a plurality of simple texture images, the plurality of simple texture images rendering different aspects of a 3D model; calculating reliabilities of the pixels of each of the simple texture images by using the calculated normal vectors; and comparing the reliabilities of the pixels that originate from different simple texture images but render the same portion of the 3D model and removing the pixels having low reliabilities from the different simple texture images from which they respectively originate.

Abstract: A method for enabling to use an Image-Based Rendering (IBR) technology in Animation Framework extension (AFX) technology is provided. In the method for representing an object in a 3D scene using an IBR technology in the 3D scene, image information and depth information on each point of the image are used, or image information and a depth information array of all points projected on each point onto a plane of the image or a color information array of each point are used. In the method, by defining expression methods for GBT, LDI, and Octree that are simple method among IBR technologies having geometric information, those methods can be used in the MPEG-4 AFX.

Abstract: Provided are three-dimensional still and animated object representations obtained from photos of real-life objects and their geometrical representations, allowing compact storage, fast rendering with high output image quality, suitable for animation purposes. The method includes transforming original data of a three-dimensional object into an intermediate representation; transforming data of the intermediate representation into a rendering representation in the form of a circumscribing cube, where a layered depth image is attributed to each face of the circumscribing cube, and rendering the obtained representation by determining visible faces of the circumscribing cube with account of the viewer's position, transforming the layered depth image for each of the visible faces into a texture, and visualizing the visible faces with texture.