Robust super-resolution in a multiview setup based on refined high-frequency synthesis

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Richter T, Seiler J, Schnurrer W, Kaup A
Publication year: 2012
Pages range: 7-12
ISBN: 9781467345729


Abstract


Increasing image sharpness and thus improving the visual quality is an important task in multiview image and video processing. We propose a novel super-resolution approach for multiview images in a mixed-resolution setup that is robust to various depth map distortions. The considered distortion scenarios may be caused by an inaccurate calibration of the depth camera or a limitation of depth range. Our method is based on a refined high-frequency synthesis that relies on a blockwise and depth-dependant low-frequency registration. The refinement step efficiently adapts the high-frequency content from a neighboring high-resolution camera to a low-resolution view and thereby compensates the displacement caused by depth inaccuracies. In case of undistorted depth maps, the results show that our algorithm leads to a PSNR gain of up to 1.33 dB with respect to a comparable unrefined super-resolution approach for a mixed-resolution multiview video plus depth format. Compared to the initial low-resolution view, a PSNR gain of up to 2.61 dB is obtained. In case of distorted depth maps, a PSNR gain of even 4.78 dB is achieved with respect to the reference superresolution algorithm. The PSNR gains get confirmed by the corresponding SSIM values which manifest a similar behaviour. The improvement of visual quality is also convincingly for all considered scenarios. © 2012 IEEE.



FAU Authors / FAU Editors

Kaup, André Prof. Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Schnurrer, Wolfgang
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Seiler, Jürgen PD Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


External institutions
Technische Universität Berlin


How to cite

APA:
Richter, T., Seiler, J., Schnurrer, W., & Kaup, A. (2012). Robust super-resolution in a multiview setup based on refined high-frequency synthesis. (pp. 7-12). Banff, AB, CA.

MLA:
Richter, T., et al. "Robust super-resolution in a multiview setup based on refined high-frequency synthesis." Proceedings of the 2012 IEEE 14th International Workshop on Multimedia Signal Processing, MMSP 2012, Banff, AB 2012. 7-12.

BibTeX: 

Last updated on 2018-10-12 at 20:50