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A hybrid global image orientation method for simultaneously estimating global rotations and global translations
- Source :
- XXIV ISPRS Congress, Commission II : edition 2020, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ; 5,2, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-2-2020, Pp 95-104 (2020)
- Publication Year :
- 2020
- Publisher :
- Katlenburg-Lindau : Copernicus Publications, 2020.
-
Abstract
- In recent years, the determination of global image orientation, i.e. global SfM, has gained a lot of attentions from researchers, mainly due to its time efficiency. Most of the global methods take relative rotations and translations as input for a two-step strategy comprised of global rotation averaging and global translation averaging. This paper by contrast presents a hybrid approach that aims to solve global rotations and translations simultaneously, but hierarchically. We first extract an optimal minimum cover connected image triplet set (OMCTS) which includes all available images with a minimum number of triplets, all of them with the three related relative orientations being compatible to each other. For non-collinear triplets in the OMCTS, we introduce some basic characterizations of the corresponding essential matrices and solve for the image pose parameters by averaging the constrained essential matrices. For the collinear triplets, on the other hand, the image pose parameters are estimated by relative orientation using the depth of object points from individual local spatial intersection. Finally, all image orientations are estimated in a common coordinate frame by traversing every solved triplet using a similarity transformation. We show results of our method on different benchmarks and demonstrate the performance and capability of the proposed approach by comparing with other global SfM methods.
- Subjects :
- lcsh:Applied optics. Photonics
Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
Computer science
0211 other engineering and technologies
global translation estimation
02 engineering and technology
Translation (geometry)
lcsh:Technology
image orientation
Image (mathematics)
Set (abstract data type)
ddc:550
0202 electrical engineering, electronic engineering, information engineering
Konferenzschrift
021101 geological & geomatics engineering
lcsh:T
Intersection (set theory)
Orientation (computer vision)
Frame (networking)
lcsh:TA1501-1820
global rotations estimation
Matrix similarity
lcsh:TA1-2040
020201 artificial intelligence & image processing
lcsh:Engineering (General). Civil engineering (General)
global structure from motion (SfM)
Algorithm
Rotation (mathematics)
Subjects
Details
- Language :
- English
- ISSN :
- 21949050
- Database :
- OpenAIRE
- Journal :
- XXIV ISPRS Congress, Commission II : edition 2020, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ; 5,2, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-2-2020, Pp 95-104 (2020)
- Accession number :
- edsair.doi.dedup.....5cf44a09e977558b6fe07c4a8d271771
- Full Text :
- https://doi.org/10.15488/10880