Abstract
Current development of 3D technologies brings 3DTV within reach for the customers. We discuss in this article the recent advancements in free-viewpoint interpolation for 3D video. This technology is still a research topic and many efforts are dedicated to creation, evaluation and improvement of new algorithms. First, we describe a recent DIBR algorithm that allows free-viewpoint interpolation. We perform detailed analysis of its performance and establish the sources of errors that occur in the resulting 3D videos. Our graph presents each DIBR step's contribution to the overall error. We show that the challenge consists of finding the correct pixel values in the areas of resulting image where warping did not provide any information. The quality of the resulting image is mostly determined by the warping procedure and cannot be considerably changed by post-processing. To accommodate the generation of stereoscopic videos, we discuss the possibilities of creating a free-viewpoint stereoscopic video.
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