| dc.creator | Delibasis K.K., Maglogiannis I. | en |
| dc.date.accessioned | 2023-01-31T07:53:03Z | |
| dc.date.available | 2023-01-31T07:53:03Z | |
| dc.date.issued | 2018 | |
| dc.identifier | 10.5220/0006658704600465 | |
| dc.identifier.isbn | 9789897582905 | |
| dc.identifier.uri | http://hdl.handle.net/11615/73187 | |
| dc.description.abstract | Feature extraction for pattern recognition is a very common task in image analysis and computer vision. Most of the work has been reported for images / image sequences acquired by perspective cameras. This paper discusses the algorithms for feature extraction and pattern recognition in images acquired by omnidirectional (fisheye) cameras. Work has been reported using operators in the frequency domain, which in the case of fisheye/omnidirectional images involves spherical harmonics. In this paper we review the recent literature, including relevant results from our team and state the position that features can be extracted from spherical images, by modifying the existing operators in the spatial domain, without the need to correct the image for distortions. Copyright © 2018 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved. | en |
| dc.language.iso | en | en |
| dc.source | VISIGRAPP 2018 - Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications | en |
| dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047878971&doi=10.5220%2f0006658704600465&partnerID=40&md5=041995ed0b6323a1e0d73a41fbca0a0a | |
| dc.subject | Cameras | en |
| dc.subject | Computer graphics | en |
| dc.subject | Computer vision | en |
| dc.subject | Extraction | en |
| dc.subject | Feature extraction | en |
| dc.subject | Frequency domain analysis | en |
| dc.subject | Fish-eye | en |
| dc.subject | Fisheye images | en |
| dc.subject | Frequency domains | en |
| dc.subject | Omni-directional | en |
| dc.subject | Perspective cameras | en |
| dc.subject | Spatial domains | en |
| dc.subject | Spherical harmonics | en |
| dc.subject | Spherical images | en |
| dc.subject | Image acquisition | en |
| dc.subject | SciTePress | en |
| dc.title | Feature extraction and pattern recognition from fisheye images in the spatial domain | en |
| dc.type | conferenceItem | en |
