Depth Image Post-processing Method by Diffusion
2013 (English)In: Proceedings of SPIE-The International Society for Optical Engineering: 3D Image Processing (3DIP) and Applications, SPIE - International Society for Optical Engineering, 2013, Art. no. 865003- p.Conference paper (Refereed)
Multi-view three-dimensional television relies on view synthesis to reduce the number of views being transmitted. Arbitrary views can be synthesized by utilizing corresponding depth images with textures. The depth images obtained from stereo pairs or range cameras may contain erroneous values, which entail artifacts in a rendered view. Post-processing of the data may then be utilized to enhance the depth image with the purpose to reach a better quality of synthesized views. We propose a Partial Differential Equation (PDE)-based interpolation method for a reconstruction of the smooth areas in depth images, while preserving significant edges. We modeled the depth image by adjusting thresholds for edge detection and a uniform sparse sampling factor followed by the second order PDE interpolation. The objective results show that a depth image processed by the proposed method can achieve a better quality of synthesized views than the original depth image. Visual inspection confirmed the results.
Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2013. Art. no. 865003- p.
Depth image, post-processing, view synthesis
IdentifiersURN: urn:nbn:se:miun:diva-18537DOI: 10.1117/12.2003183ISI: 000322110500001ScopusID: 2-s2.0-84878288330Local ID: STCISBN: 978-081949423-8OAI: oai:DiVA.org:miun-18537DiVA: diva2:608477
3D Image Processing (3DIP) and Applications 2013; 3-7 Feb 2013; Burlingame, Ca, USA; Conference 8650