TY - GEN
T1 - A revisit to MRF-based depth map super-resolution and enhancement
AU - Lu, Jiangbo
AU - Min, Dongbo
AU - Pahwa, Ramanpreet Singh
AU - Do, Minh N.
PY - 2011/8/18
Y1 - 2011/8/18
N2 - This paper presents a Markov Random Field (MRF)-based approach for depth map super-resolution and enhancement. Given a low-resolution or moderate quality depth map, we study the problem of enhancing its resolution or quality with a registered high-resolution color image. Different from the previous methods, this MRF-based approach is based on a novel data term formulation that fits well to the unique characteristics of depth maps. We also discuss a few important design choices that boost the performance of general MRF-based methods. Experimental results show that our proposed approach achieves high-resolution depth maps at more desirable quality, both qualitatively and quantitatively. It can also be applied to enhance the depth maps derived with state-of-the-art stereo methods, resulting in the raised ranking based on the Middlebury benchmark.
AB - This paper presents a Markov Random Field (MRF)-based approach for depth map super-resolution and enhancement. Given a low-resolution or moderate quality depth map, we study the problem of enhancing its resolution or quality with a registered high-resolution color image. Different from the previous methods, this MRF-based approach is based on a novel data term formulation that fits well to the unique characteristics of depth maps. We also discuss a few important design choices that boost the performance of general MRF-based methods. Experimental results show that our proposed approach achieves high-resolution depth maps at more desirable quality, both qualitatively and quantitatively. It can also be applied to enhance the depth maps derived with state-of-the-art stereo methods, resulting in the raised ranking based on the Middlebury benchmark.
KW - depth super-resolution
KW - depth-enhancement
KW - global optimization
KW - MRFs
KW - Time-of-flight sensor
UR - http://www.scopus.com/inward/record.url?scp=80051640232&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051640232&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946571
DO - 10.1109/ICASSP.2011.5946571
M3 - Conference contribution
AN - SCOPUS:80051640232
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 985
EP - 988
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -