Title :
Reconstruction of multiview images taken with non-regular sampling sensors
Author :
Richter, Thomas ; Jonscher, Markus ; Schnurrer, Wolfgang ; Seiler, Jurgen ; Kaup, Andre
Author_Institution :
Multimedia Commun. & Signal Process., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
Increasing spatial image resolution is a widely discussed area in the field of image processing. In this paper, we present an efficient reconstruction approach for high-resolution images, taken with irregularly shielded low-resolution sensors in a multiview setup. The approach is based on the sparsity assumption, meaning that natural images can be efficiently represented in a transform-domain using only few coefficients. Utilizing information from adjacent cameras results in a better reconstruction quality for the central high-resolution view. Since neighboring camera perspectives might differ in illumination, the information from adjacent views has to be adapted to the view to be reconstructed. The simulation results show that a proper incorporation of information from neighboring views leads to a PSNR gain of up to 2.20 dB compared to a state-of-the-art singleview reconstruction approach.
Keywords :
image reconstruction; image resolution; image sampling; image sensors; lighting; transforms; PSNR gain; adjacent cameras; illumination; image processing; multiview image reconstruction; multiview setup; neighboring camera; nonregular sampling sensors; sparsity assumption; spatial image resolution; transform-domain; Cameras; Gain; Image reconstruction; Image resolution; Image sensors; PSNR; Sensors; Multiview; depth-image based rendering; image reconstruction; non-regular sampling; sparsity;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location :
Florence
DOI :
10.1109/ICASSP.2014.6854713