Object-based depth image-based rendering for a three-dimensional video system by color-correction optimization

摘要

Three-dimensional (3-D) video technologies are becoming in-creasingly popular because they can provide high quality and immersive experience to end users. Depth image-based rendering (DIBR) is a key technology in 3-D video systems due to its low bandwidth cost as well as the arbitrary rendering viewpoint. We propose an object-based DIBR method by color-correction optimization. The proposed method first per-forms temporal consistent rendering to reduce the rendering complexity. Then, by segmenting the depth map into foreground and background, the object-based scalable rendering is performed to improve the rendering quality and reduce the rendering complexity. Finally, the rendered virtual view is further optimized by color-correction operation. Experimental re-sults show that, compared to the results without the above optimization operations, the proposed method can reduce >40% computational com-plexity while maintaining high rendering quality.