Abstract
To facilitate new video applications such as three-dimensional video (3DV) and free-viewpoint video (FVV), multiple view plus depth format (MVD), which consists of both video views and the corresponding per-pixel depth images, is being investigated. Virtual views can be generated using depth image based rendering (DIBR), which takes video and the corresponding depth images as input. This paper discusses view synthesis techniques based on DIBR, which includes forward warping, blending and hole filling. Especially, we will emphasize on the techniques brought to the MPEG view synthesis reference software (VSRS). Unlike the case in the field of computer graphics, the ground truth depth images for nature content are very difficult to obtain. The estimated depth images used for view synthesis typically contain different types of noises. Some robust synthesis modes to combat against the depth errors are also presented in this paper. In addition, we briefly discuss how to use synthesis techniques with minor modifications to generate the occlusion layer information for layered depth video (LDV) data, which is another potential format for 3DV applications.
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