In order to combine the best of both approaches, hybridization. Rendering dibr is a key technology in advanced three dimensional television system attest 3d tv system. An overview of free viewpoint depthimagebased rendering. Compared with the classical approach of stereoscopic video, the proposed 3dtv system has a number of advantages that can be shortly summarized as follows. Previous imagebased rendering techniques can be classified into three categories according to how much geometric information is used. Displayindependent 3dtv production and delivery using the. A 3dtv approach using depthimagebased rendering dibr. An overview of free viewpoint depthimagebased rendering dibr. In an imagebased rendering system with depth maps, such as 3d warping 25, and layered. Eighty years later, the first blackandwhite television prototypes have evolved into highdefinition digital color tv, but the vision of a system that provides the viewer.
In this paper, we survey the techniques for imagebased rendering. Riding on the success of 3d cinema blockbusters and advances in stereoscopic display technology, 3d video applications have gathered momentum in recent. A 3dtv system based on video plus depth information. Architectures, techniques and challenges surveys depth image based 3dtv systems, which are expected to be put into applications in the near future. Depth image based rendering is a technique to render new views from a video stream. This paper presents details of a system that allows for an evolutionary introduction of depth perception into the existing 2d digital tv framework. The scene geometry is given by an additional depth stream which stores for each pixel its distance to the camera. Although depthimagebased rendering is an efficient method, it. As early as in the 1920s, john logie baird, one of the tv pioneers, dreamed of developing highquality, threedimensional 3d color tv, as only such a tv would provide the most natural viewing experience. Unlike traditional 3d computer graphics in which 3d geometry of the scene is known, imagebased rendering techniques render novel views directly from input images. The depthbased 3d system is considered a strong candidate of the secondgeneration 3dtv, preceded by the stereoscopic 3dtv.