Title
Real-Time Frequency Selective Reconstruction through Register-Based Argmax Calculation
Abstract
Frequency Selective Reconstruction (FSR) is a state-of-the-art algorithm for solving diverse image reconstruction tasks, where a subset of pixel values in the image is missing. However, it entails a high computational complexity due to its iterative, blockwise procedure to reconstruct the missing pixel values. Although the complexity of FSR can be considerably decreased by performing its computations in the frequency domain, the reconstruction procedure still takes multiple seconds up to multiple minutes depending on the parameterization. However, FSR has the potential for a massive parallelization greatly improving its reconstruction time. In this paper, we introduce a novel highly parallelized formulation of FSR adapted to the capabilities of modern GPUs and propose a considerably accelerated calculation of the inherent argmax calculation. Altogether, we achieve a 100-fold speed-up, which enables the usage of FSR for real-time applications.
Year
DOI
Venue
2020
10.1109/MMSP48831.2020.9287071
2020 IEEE 22nd International Workshop on Multimedia Signal Processing (MMSP)
Keywords
DocType
ISSN
image reconstruction,parallelization,argmax
Conference
2163-3517
ISBN
Citations 
PageRank 
978-1-7281-9323-6
0
0.34
References 
Authors
9
4
Name
Order
Citations
PageRank
Andy Regensky100.34
Simon Grosche200.34
Jürgen Seiler314528.28
André Kaup4861127.24