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FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network

Abstract: 

High dynamic range (HDR) image generation from a single exposure low dynamic range (LDR) image has been made possible due to the recent advances in Deep Learning. Various feed-forward Convolutional Neural Networks (CNNs) have been proposed for learning LDR to HDR representations. To better utilize the power of CNNs, we exploit the idea of feedback, where the initial low level features are guided by the high level features using a hidden state of a Recurrent Neural Network. Unlike a single forward pass in a conventional feed-forward network, the reconstruction from LDR to HDR in a feedback network is learned over multiple iterations. This enables us to create a coarse-to-fine representation, leading to an improved reconstruction at every iteration. Various advantages over standard feed-forward networks include early reconstruc- tion ability and better reconstruction quality with fewer network parameters. We design a dense feedback block and propose an end-to-end feedback network- FHDR for HDR image generation from a single exposure LDR image. Qualitative and quantitative evaluations show the superiority of our approach over the state- of-the-art methods.

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Paper Details

Authors:
Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman
Submitted On:
10 November 2019 - 4:07am
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Diptiben Patel
Paper Code:
1570567687
Document Year:
2019
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Document Files

FHDR Presentation.pdf

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[1] Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman, "FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/4943. Accessed: Nov. 11, 2019.
@article{4943-19,
url = {http://sigport.org/4943},
author = {Zeeshan Khan; Mukul Khanna; Shanmuganathan Raman },
publisher = {IEEE SigPort},
title = {FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network},
year = {2019} }
TY - EJOUR
T1 - FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network
AU - Zeeshan Khan; Mukul Khanna; Shanmuganathan Raman
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/4943
ER -
Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman. (2019). FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network. IEEE SigPort. http://sigport.org/4943
Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman, 2019. FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network. Available at: http://sigport.org/4943.
Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman. (2019). "FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network." Web.
1. Zeeshan Khan, Mukul Khanna, Shanmuganathan Raman. FHDR: HDR Image Reconstruction from a Single LDR Image using Feedback Network [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/4943