Intermediate view synthesis based on edge detecting

Intermediate view synthesis is a key technique for free-viewpoint video applications. Various methods have been proposed in this filed. However, most of those methods are so complex that they can't be realized for realtime. In addition, a perfect depth image is hard to acquire for the mixtures of foreground pixels and background pixels at the object boundary. The errors in depth map would involve many holes in intermediate views when it is synthesized between the left-most view and right-most view based on depth map. How to handle the artifacts around object boundaries in intermediate view is another challenge. In this paper, we propose a simple but effective method to enhance the synthesized intermediate views based on edge detecting(SIVBE). Experiment results on typical test sequences show that the quality of intermediate view can be improved by 1.3 dB and the proposed algorithm achieves a reduction of 50% computational complexity on average.