Perceived quality of DIBR-based synthesized views
Emilie Bosc, Romuald Pépion, Patrick Le Callet, Martin Köppel, Patrick Ndjiki-Nya, Luce Morin, Muriel Pressigout · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2011
This paper considers the reliability of usual assessment methods when evaluating virtual synthesized views in the multiview video context. Virtual views are generated from Depth Image Based Rendering (DIBR) algorithms. Because DIBR algorithms involve geometric transformations, new types of artifacts come up. The question regards the ability of commonly used methods to deal with such artifacts. This paper investigates how correlated usual metrics are to human judgment. The experiments consist in assessing seven different view synthesis algorithms by subjective and objective methods. Three different 3D video sequences are used in the tests. Resulting virtual synthesized sequences are assessed through objective metrics and subjective protocols. Results show that usual objective metrics can fail assessing synthesized views, in the sense of human judgment.