Translator Disclaimer
19 January 2009 Improving view rendering quality and coding efficiency by suppressing compression artifacts in depth-image coding
Author Affiliations +
Proceedings Volume 7257, Visual Communications and Image Processing 2009; 72570O (2009)
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States
We consider the effect of depth-image compression artifacts on the quality of virtual views rendered using neighboring views. Such view rendering processes are utilized in new video applications such as 3D television (3DTV) and free viewpoint video (FVV). We first analyze how compression artifacts in compressed depth-images result in distortions in rendered views. We show that the rendering position error is a monotonic function of the coding error. For the scenario in which cameras are arranged with parallel optical axes, we further demonstrate specific properties of rendering position error. Exploiting special characteristics of depth-images, namely smooth regions separated by sharp edges, we investigate a possible solution to suppress compression artifacts by encoding depth-images with a recently published sparsity-based in-loop de-artifacting filter. Simulation results show that applying such techniques not only provides significantly higher coding efficiency for depth-image coding, but, more importantly, also improves the quality of rendered views in terms of PSNR and subjective quality.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
PoLin Lai, Antonio Ortega, Camilo C. Dorea, Peng Yin, and Cristina Gomila "Improving view rendering quality and coding efficiency by suppressing compression artifacts in depth-image coding", Proc. SPIE 7257, Visual Communications and Image Processing 2009, 72570O (19 January 2009);


Live HDR video streaming on commodity hardware
Proceedings of SPIE (September 22 2015)
A polygon soup representation for free viewpoint video
Proceedings of SPIE (February 04 2010)
Predictive Coding of Depth Images Across Multiple Views
Proceedings of SPIE (March 05 2007)
Depth map coding with distortion estimation of rendered view
Proceedings of SPIE (January 18 2010)
Space-time multiple description video coding
Proceedings of SPIE (January 19 2006)

Back to Top