TY - GEN
T1 - Enhanced Bidirectional Motion Estimation Using Feature Refinement for HDR Imaging
AU - Vien, An Gia
AU - Nhat Mai, Truong Thanh
AU - Park, Seonghyun
AU - Kim, Gahyeon
AU - Lee, Chul
N1 - Publisher Copyright:
© 2022 Asia-Pacific of Signal and Information Processing Association (APSIPA).
PY - 2022
Y1 - 2022
N2 - We propose a high dynamic range (HDR) image synthesis algorithm based on enhanced bidirectional motion estimation using feature refinement. First, we extract multiscale features from input low dynamic range (LDR) images and then estimate accurate motion vector fields between them in a coarse-to-fine manner via progressive refinement. Then, we estimate adaptive local kernels to merge only valid information in the spatio-exposed neighboring pixels for synthesis. Finally, we refine the initially merged image by exploiting global information to further improve synthesis performance. Experimental results show that the proposed algorithm outperforms state-of-the-art algorithms in quantitative and qualitative comparisons.
AB - We propose a high dynamic range (HDR) image synthesis algorithm based on enhanced bidirectional motion estimation using feature refinement. First, we extract multiscale features from input low dynamic range (LDR) images and then estimate accurate motion vector fields between them in a coarse-to-fine manner via progressive refinement. Then, we estimate adaptive local kernels to merge only valid information in the spatio-exposed neighboring pixels for synthesis. Finally, we refine the initially merged image by exploiting global information to further improve synthesis performance. Experimental results show that the proposed algorithm outperforms state-of-the-art algorithms in quantitative and qualitative comparisons.
UR - http://www.scopus.com/inward/record.url?scp=85146288035&partnerID=8YFLogxK
U2 - 10.23919/APSIPAASC55919.2022.9980026
DO - 10.23919/APSIPAASC55919.2022.9980026
M3 - Conference contribution
AN - SCOPUS:85146288035
T3 - Proceedings of 2022 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2022
SP - 1025
EP - 1029
BT - Proceedings of 2022 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2022
Y2 - 7 November 2022 through 10 November 2022
ER -