Title
HDR Imaging From Quantization Noise
Abstract
Quantization is an integral part of image acquisition but also a major performance bottleneck due to the trade-off between dynamic range and resolution. As we discuss in this paper, in contrast, quantization noise can be acquired reliably even beyond the dynamic range by re-purposing recent hardware development. In this paper, we introduce and mathematically analyze an algorithm to recover images from this information, thus giving rise to a novel, single-shot, high-dynamic-range (HDR) imaging approach. Our method directly works with a refined model for sensor outputs at the digitization stage and crucially exploits smoothing anti-aliasing artifacts. We derive recovery guarantees and demonstrate the validity of our approach via computer experiments. Our work suggests re-thinking of the imaging pipeline as seeming sensing artifacts can lead to improved reconstruction when combined with proper computational methodology.
Year
DOI
Venue
2020
10.1109/ICIP40778.2020.9190872
2020 IEEE International Conference on Image Processing (ICIP)
Keywords
DocType
ISSN
Quantization (signal)
Conference
1522-4880
ISBN
Citations 
PageRank 
978-1-7281-6395-6
1
0.37
References 
Authors
0
2
Name
Order
Citations
PageRank
Ayush Bhandari1655.52
Felix Krahmer236927.16