Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation

Journal article


Publication Details

Author(s): Seiler J, Jonscher M, Ussmueller T, Kaup A
Journal: IEEE Transactions on Circuits and Systems For Video Technology
Publication year: 2018
ISSN: 1051-8215


Abstract


Increasing the resolution of image sensors has been a never ending struggle since many years. In this paper, we propose a novel image sensor layout which allows for the acquisition of images at a higher resolution and improved quality. For this, the image sensor makes use of non-regular sampling which reduces the impact of aliasing. Therewith, it allows for capturing details which would not be possible with state-ofthe-art sensors of the same number of pixels. The non-regular sampling is achieved by rotating prototype pixel cells in a nonregular fashion. As not the whole area of the pixel cell is sensitive to light, a non-regular spatial integration of the incident light is obtained. Based on the sensor output data, a high-resolution image can be reconstructed by performing a deconvolution with respect to the integration area and an extrapolation of the information to the insensitive regions of the pixels. To solve this challenging task, we introduce a novel joint sparse deconvolution and extrapolation algorithm. The union of non-regular sampling and the proposed reconstruction allows for achieving a higher resolution and therewith an improved imaging quality.



FAU Authors / FAU Editors

Jonscher, Markus
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Seiler, Jürgen PD Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


External institutions
Leopold-Franzens-Universität Innsbruck / University of Innsbruck


How to cite

APA:
Seiler, J., Jonscher, M., Ussmueller, T., & Kaup, A. (2018). Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation. IEEE Transactions on Circuits and Systems For Video Technology.

MLA:
Seiler, Jürgen, et al. "Increasing Imaging Resolution by Non-Regular Sampling and Joint Sparse Deconvolution and Extrapolation." IEEE Transactions on Circuits and Systems For Video Technology (2018).

BibTeX: 

Last updated on 2018-08-08 at 01:55