Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 2011 Conference for Visual Media Production, CVMP 2011 |
| Pages | 77-86 |
| Number of pages | 10 |
| Publication status | Published - 2011 |
| Event | 8th European Conference on Visual Media Production, CVMP 2011 - London, United Kingdom (UK) Duration: 16 Nov 2011 → 17 Nov 2011 |
Publication series
| Name | Proceedings - 2011 Conference for Visual Media Production, CVMP 2011 |
|---|
Abstract
The paper deals with projective shape and motion reconstruction by subspace iterations. A prerequisite of factorization-style algorithms is that all feature points need be observed in all images, a condition which is hardly realistic in real videos. We therefore address the problem of estimating structure and motion considering missing features. The proposed algorithm does not require initialization and uniformly handles all available data. The computed solution is global in the sense that it does not merge partial solutions incrementally or hierarchically. The global cost due to the factorization is further amended by local constraints to regularize and stabilize the estimations. It is shown how both costs can be jointly minimized in the presence of unobserved points. By synthetic and real image sequences with up to 60% missing data we demonstrate that our algorithm is accurate and reliable.
Keywords
- factorization, projective 3d-reconstruction
ASJC Scopus subject areas
- Arts and Humanities(all)
- Visual Arts and Performing Arts
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Proceedings: 2011 Conference for Visual Media Production, CVMP 2011. 2011. p. 77-86 6103278 (Proceedings - 2011 Conference for Visual Media Production, CVMP 2011).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Projective reconstruction from incomplete trajectories by global and local constraints
AU - Ackermann, Hanno
AU - Rosenhahn, Bodo
PY - 2011
Y1 - 2011
N2 - The paper deals with projective shape and motion reconstruction by subspace iterations. A prerequisite of factorization-style algorithms is that all feature points need be observed in all images, a condition which is hardly realistic in real videos. We therefore address the problem of estimating structure and motion considering missing features. The proposed algorithm does not require initialization and uniformly handles all available data. The computed solution is global in the sense that it does not merge partial solutions incrementally or hierarchically. The global cost due to the factorization is further amended by local constraints to regularize and stabilize the estimations. It is shown how both costs can be jointly minimized in the presence of unobserved points. By synthetic and real image sequences with up to 60% missing data we demonstrate that our algorithm is accurate and reliable.
AB - The paper deals with projective shape and motion reconstruction by subspace iterations. A prerequisite of factorization-style algorithms is that all feature points need be observed in all images, a condition which is hardly realistic in real videos. We therefore address the problem of estimating structure and motion considering missing features. The proposed algorithm does not require initialization and uniformly handles all available data. The computed solution is global in the sense that it does not merge partial solutions incrementally or hierarchically. The global cost due to the factorization is further amended by local constraints to regularize and stabilize the estimations. It is shown how both costs can be jointly minimized in the presence of unobserved points. By synthetic and real image sequences with up to 60% missing data we demonstrate that our algorithm is accurate and reliable.
KW - factorization
KW - projective 3d-reconstruction
UR - http://www.scopus.com/inward/record.url?scp=84855841716&partnerID=8YFLogxK
U2 - 10.1109/CVMP.2011.15
DO - 10.1109/CVMP.2011.15
M3 - Conference contribution
AN - SCOPUS:84855841716
SN - 9780769546216
T3 - Proceedings - 2011 Conference for Visual Media Production, CVMP 2011
SP - 77
EP - 86
BT - Proceedings
T2 - 8th European Conference on Visual Media Production, CVMP 2011
Y2 - 16 November 2011 through 17 November 2011
ER -