TY - GEN
T1 - GHOST-FREE HDR IMAGING VIA UNROLLING LOW-RANK MATRIX COMPLETION
AU - Mai, Truong Thanh Nhat
AU - Lam, Edmund Y.
AU - Lee, Chul
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - We propose a ghost-free high dynamic range (HDR) image synthesis algorithm by unrolling low-rank matrix completion. By exploiting the low-rank structure of the irradiance maps from low dynamic range (LDR) images, we formulate ghost-free HDR imaging as a general low-rank matrix completion problem. Then, we solve the problem iteratively using the augmented Lagrange multiplier (ALM) method. At each iteration, the optimization variables are updated by closed-form solutions and the regularizers are updated by learned deep neural networks. Experimental results show that the proposed algorithm provides better image qualities with fewer visual artifacts compared to state-of-the-art algorithms.
AB - We propose a ghost-free high dynamic range (HDR) image synthesis algorithm by unrolling low-rank matrix completion. By exploiting the low-rank structure of the irradiance maps from low dynamic range (LDR) images, we formulate ghost-free HDR imaging as a general low-rank matrix completion problem. Then, we solve the problem iteratively using the augmented Lagrange multiplier (ALM) method. At each iteration, the optimization variables are updated by closed-form solutions and the regularizers are updated by learned deep neural networks. Experimental results show that the proposed algorithm provides better image qualities with fewer visual artifacts compared to state-of-the-art algorithms.
KW - High dynamic range imaging
KW - Low-rank matrix completion
KW - Unrolled optimization
UR - http://www.scopus.com/inward/record.url?scp=85125593019&partnerID=8YFLogxK
U2 - 10.1109/ICIP42928.2021.9506201
DO - 10.1109/ICIP42928.2021.9506201
M3 - Conference contribution
AN - SCOPUS:85125593019
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 2928
EP - 2932
BT - 2021 IEEE International Conference on Image Processing, ICIP 2021 - Proceedings
PB - IEEE Computer Society
T2 - 2021 IEEE International Conference on Image Processing, ICIP 2021
Y2 - 19 September 2021 through 22 September 2021
ER -