PUGTIFs: Passively user-generated thermal invariant features

dc.contributor.authorJackson, Edward
dc.contributor.authorChermak, Lounis
dc.date.accessioned2019-09-25T13:33:37Z
dc.date.available2019-09-25T13:33:37Z
dc.date.issued2019-08-08
dc.description.abstractFeature detection is a vital aspect of computer vision applications, but adverse environments, distance and illumination can affect the quality and repeatability of features or even prevent their identification. Invariance to these constraints would make an ideal feature attribute. Here we propose the first exploitation of consistently occurring thermal signatures generated by a moving platform, a paradigm we define as passively user-generated thermal invariant features (PUGTIFs). In this particular instance, the PUGTIF concept is applied through the use of thermal footprints that are passively and continuously user generated by heat differences, so that features are no longer dependent on the changing scene structure (as in classical approaches) but now maintain a spatial coherency and remain invariant to changes in illumination. A framework suitable for any PUGTIF has been designed consisting of three methods: first, the known footprint size is used to solve for monocular localisation and thus scale ambiguity; second, the consistent spatial pattern allows us to determine heading orientation; and third, these principles are combined in our automated thermal footprint detector (ATFD) method to achieve segmentation/feature detection. We evaluated the detection of PUGTIFs in four laboratory environments (sand, grass, grass with foliage, and carpet) and compared ATFD to typical image segmentation methods. We found that ATFD is superior to other methods while also solving for scaled monocular camera localisation and providing user heading in multiple environments.en_UK
dc.identifier.citationJackson E, Chermak L. (2019) PUGTIFs: Passively user-generated thermal invariant features. IEEE Access, Volume 7, August 2019, pp.109566-109576en_UK
dc.identifier.cris24558046
dc.identifier.issn2169-3536
dc.identifier.urihttps://doi.org/10.1109/ACCESS.2019.2933946
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14564
dc.language.isoenen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectfeature detectoren_UK
dc.subjectimage segmentationen_UK
dc.subjectmonocular scaled localisationen_UK
dc.subjectthermal footprinten_UK
dc.titlePUGTIFs: Passively user-generated thermal invariant featuresen_UK
dc.typeArticle

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