Mixed-resolution view synthesis using non-local means refined image merging

Richter T, Schöberl M, Seiler J, Tröger T, Kaup A (2012)


Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2012

Book Volume: 8288

Article Number: 82881K

Event location: San Francisco US

ISBN: 9780819489357

DOI: 10.1117/12.906552

Abstract

Synthesizing novel views from originally available camera perspectives via depth maps is a key issue in the 3D video domain. Up to now, several high-resolution cameras are needed to obtain high-quality intermediate synthesized views. One possibility to reduce costs with regard to the used camera array is to replace some cameras by low-resolution cameras, which are cheaper on the one hand, but provide a much poorer image quality on the other hand. Unfortunately, some of the information inside the desired intermediate view may only be available in the low-resolution reference. Thus, the image quality of the low-resolution reference has a big influence on the visual quality of the synthesized view. This paper proposes a postprocessing step for the synthesized view, based on the non-local means algorithm. Thereby, all areas inserted from the low-resolution reference get efficiently adapted to their high-resolution environment. It is shown, that the non-local means refined image merging leads to a PSNR gain of up to 0.90 dB compared to an unrefined mixed-resolution setup. The approach can be easily extended to a hole-filling algorithm and yields a PSNR gain of up to 0.81 dB for hole areas compared to a reference hole-filling algorithm. The subjective image quality also increases convincingly in both applications. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

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How to cite

APA:

Richter, T., Schöberl, M., Seiler, J., Tröger, T., & Kaup, A. (2012). Mixed-resolution view synthesis using non-local means refined image merging. In Proceedings of the SPIE Electronic Imaging 2012 - Stereoscopic Displays and Applications XXIII. San Francisco, US.

MLA:

Richter, Thomas, et al. "Mixed-resolution view synthesis using non-local means refined image merging." Proceedings of the SPIE Electronic Imaging 2012 - Stereoscopic Displays and Applications XXIII, San Francisco 2012.

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