File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1109/TIP.2014.2352497
- Scopus: eid_2-s2.0-84907463645
- WOS: WOS:000342159100008
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Nonlocal sparse and low-rank regularization for optical flow estimation
Title | Nonlocal sparse and low-rank regularization for optical flow estimation |
---|---|
Authors | |
Keywords | low-rank nonlocal self-similarity Optical flow sparse representation |
Issue Date | 2014 |
Citation | IEEE Transactions on Image Processing, 2014, v. 23, n. 10, p. 4527-4538 How to Cite? |
Abstract | Designing an appropriate regularizer is of great importance for accurate optical flow estimation. Recent works exploiting the nonlocal similarity and the sparsity of the motion field have led to promising flow estimation results. In this paper, we propose to unify these two powerful priors. To this end, we propose an effective flow regularization technique based on joint low-rank and sparse matrix recovery. By grouping similar flow patches into clusters, we effectively regularize the motion field by decomposing each set of similar flow patches into a low-rank component and a sparse component. For better enforcing the low-rank property, instead of using the convex nuclear norm, we use the log det function as the surrogate of rank, which can also be efficiently minimized by iterative singular value thresholding. Experimental results on the Middlebury benchmark show that the performance of the proposed nonlocal sparse and low-rank regularization method is higher than (or comparable to) those of previous approaches that harness these same priors, and is competitive to current state-of-the-art methods. |
Persistent Identifier | http://hdl.handle.net/10722/327014 |
ISSN | 2023 Impact Factor: 10.8 2023 SCImago Journal Rankings: 3.556 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dong, Weisheng | - |
dc.contributor.author | Shi, Guangming | - |
dc.contributor.author | Hu, Xiaocheng | - |
dc.contributor.author | Ma, Yi | - |
dc.date.accessioned | 2023-03-31T05:28:10Z | - |
dc.date.available | 2023-03-31T05:28:10Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | IEEE Transactions on Image Processing, 2014, v. 23, n. 10, p. 4527-4538 | - |
dc.identifier.issn | 1057-7149 | - |
dc.identifier.uri | http://hdl.handle.net/10722/327014 | - |
dc.description.abstract | Designing an appropriate regularizer is of great importance for accurate optical flow estimation. Recent works exploiting the nonlocal similarity and the sparsity of the motion field have led to promising flow estimation results. In this paper, we propose to unify these two powerful priors. To this end, we propose an effective flow regularization technique based on joint low-rank and sparse matrix recovery. By grouping similar flow patches into clusters, we effectively regularize the motion field by decomposing each set of similar flow patches into a low-rank component and a sparse component. For better enforcing the low-rank property, instead of using the convex nuclear norm, we use the log det function as the surrogate of rank, which can also be efficiently minimized by iterative singular value thresholding. Experimental results on the Middlebury benchmark show that the performance of the proposed nonlocal sparse and low-rank regularization method is higher than (or comparable to) those of previous approaches that harness these same priors, and is competitive to current state-of-the-art methods. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Transactions on Image Processing | - |
dc.subject | low-rank | - |
dc.subject | nonlocal self-similarity | - |
dc.subject | Optical flow | - |
dc.subject | sparse representation | - |
dc.title | Nonlocal sparse and low-rank regularization for optical flow estimation | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TIP.2014.2352497 | - |
dc.identifier.scopus | eid_2-s2.0-84907463645 | - |
dc.identifier.volume | 23 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | 4527 | - |
dc.identifier.epage | 4538 | - |
dc.identifier.isi | WOS:000342159100008 | - |