International Society for Photogrammetry and Remote Sensing (ISPRS)
Title of conference publication:
XXIII ISPRS Congress, Commission III, 12-19 July 2016, Prague, Czech Republic
Journal:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Issue:
III-3
Organizer (entity):
International Society for Photogrammetry and Remote Sensing (ISPRS)
Conference title:
International Society for Photogrammetry and Remote Sensing Congress (23., 2016, Prag)
Venue:
Prag
Year of conference:
2016
Date of conference beginning:
12.07.2016
Date of conference ending:
19.07.2016
Publishing institution:
International Society for Photogrammetry and Remote Sensing (ISPRS)
Year:
2016
Pages from - to:
99-106
Language:
Englisch
Abstract:
This paper presents a Structure from Motion approach for complex unorganized image sets. To achieve high accuracy and robustness, image triplets are employed and (an approximate) camera calibration is assumed to be known. The focus lies on a complete linking of images even in case of large image distortions, e.g., caused by wide baselines, as well as weak baselines. A method for embedding image descriptors into Hamming space is proposed for fast image similarity ranking. The later is employed to limit the number of pairs to be matched by a wide baseline method. An iterative graph-based approach is proposed formulating image linking as the search for a terminal Steiner minimum tree in a line graph. Finally, additional links are determined and employed to improve the accuracy of the pose estimation. By this means, loops in long image sequences are implicitly closed. The potential of the proposed approach is demonstrated by results for several complex image sets also in comparison with VisualSFM. «
This paper presents a Structure from Motion approach for complex unorganized image sets. To achieve high accuracy and robustness, image triplets are employed and (an approximate) camera calibration is assumed to be known. The focus lies on a complete linking of images even in case of large image distortions, e.g., caused by wide baselines, as well as weak baselines. A method for embedding image descriptors into Hamming space is proposed for fast image similarity ranking. The later is employed to... »