Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Gerd Häusler"'
Autor:
Gerd Häusler, Florian Willomitzer
Publikováno v:
Light: Advanced Manufacturing. 3:1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51b8219f8f00ade65148951b07f84b70
https://doi.org/10.37188/lam.2022.025
https://doi.org/10.37188/lam.2022.025
Publikováno v:
Advanced Optical Technologies. 5:433-438
Phase-measuring deflectometry (PMD) has become a standard tool to measure the topography of specular surfaces. We implemented PMD for the measurement of the human cornea topography, exploiting an earlier idea of Lingelbach et al. Two problems occur:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62153a143f6480024cd3fd7669e5940d
https://doi.org/10.1515/aot-2016-0049
https://doi.org/10.1515/aot-2016-0049
Autor:
Gerd Häusler
Publikováno v:
Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP).
Nature's limits are precious: they often reveal uncertainty products connecting coherence, resolution, precision, channel capacity... So we can bargain with nature for "optimal" 3D sensors with novel features or just better precision, resolution, spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58edf7623efd4a5b0c76ffcade7abefd
https://doi.org/10.1364/cosi.2019.cth2a.1
https://doi.org/10.1364/cosi.2019.cth2a.1
Publikováno v:
Speckle 2018: VII International Conference on Speckle Metrology.
We are motivated by the question if scanning laser projection with low speckle noise is possible. Scanning laser projection requires “instantaneous” speckle reduction, within a few nanoseconds – meaning that no moving diffusors can be used. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9355fb09ee175a9b2347fdb39e7930dd
https://doi.org/10.1117/12.2317925
https://doi.org/10.1117/12.2317925
Autor:
Florian Willomitzer, Gerd Häusler
Publikováno v:
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP).
We introduce a novel sensor for the 3D acquisition of macroscopic live scenes. The sensor combines single-shot acquisition with a precision and point cloud density close to the theoretical maximum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa018d17d1de49de53647656b3915d12
https://doi.org/10.1364/3d.2018.3m3g.2
https://doi.org/10.1364/3d.2018.3m3g.2
Autor:
Gerd Häusler, Pavel Pavliček
Publikováno v:
International Journal of Optomechatronics. 8:292-303
There is a wide spectrum of optical 3-D sensors based on only a few basic principles. We calculate the measurement uncertainty for several “paradigm” methods, by means of the Cramer-Rao lower bound. It turns out that when all other sources of noi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c3c694e453f2ca75f4075a0e76c18ec
https://doi.org/10.1080/15599612.2014.942929
https://doi.org/10.1080/15599612.2014.942929
Publikováno v:
Advanced Optical Technologies. 3:335-343
We discuss the inspection of large-sized, spherical mirror tiles by ‘Phase Measuring Deflectometry’ (PMD). About 10 000 of such mirror tiles, each satisfying strict requirements regarding the spatial extent of the point-spread-function (PSF), are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d82ef2ceb4295219d9caa3f03bcec4c
https://doi.org/10.1515/aot-2014-0023
https://doi.org/10.1515/aot-2014-0023
Autor:
Gerd Häusler, Florian Willomitzer
We introduce a method and a 3D-camera for single-shot 3D shape measurement, with unprecedented features: The 3D-camera does not rely on pattern codification and acquires object surfaces at the theoretical limit of the information efficiency: Up to 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::060d552d6d9862c6354fed1332b38968
http://arxiv.org/abs/1605.02119
http://arxiv.org/abs/1605.02119
Publikováno v:
ICCP
This talk will discuss (from the viewpoint of a physicist with background in optical engineering and information) how much imaging and how much computing is (or should be) in computational imaging, aiming for high information efficiency. For an optic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79a166862f8b76540c8a0199b180733
https://doi.org/10.1109/iccphot.2016.7492865
https://doi.org/10.1109/iccphot.2016.7492865
Publikováno v:
Applied optics. 55(7)
Three-dimensional (3D) inspection in the factory requires precision and speed. While customers can select from a wide spectrum of high-precision sensors, the real challenge today is "speed." We discuss the speed of 3D sensors in a general context to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::473f98ff8f96f58b1a0ac0d8607ade6e
https://pubmed.ncbi.nlm.nih.gov/26974634
https://pubmed.ncbi.nlm.nih.gov/26974634