Title
Fast-n-Squeeze: towards real-time spectral reconstruction from RGB images
Abstract
We present an efficient method for the reconstruction of multispectral information from RGB images, as part of the NTIRE 2022 Spectral Reconstruction Challenge. Given an input image, our method determines a global RGB-to-spectral linear transformation matrix, based on a search through optimal matrices from training images that share low-level features with the input. The resulting spectral signatures are then adjusted by a global scaling factor, determined through a lightweight SqueezeNet-inspired neural network. By combining the efficiency of linear transformation matrices with the data-driven effectiveness of convolutional neural networks, we are able to achieve superior performance than winners of the previous editions of the challenge.
Year
DOI
Venue
2022
10.1109/CVPRW56347.2022.00122
IEEE Conference on Computer Vision and Pattern Recognition
DocType
Volume
Issue
Conference
2022
1
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Mirko Agarla100.68
Simone Bianco222624.48
Marco Buzzelli301.01
Luigi Celona400.34
Raimondo Schettini51476154.06