Results 11 to 20 of about 1,358,544 (143)
A Versatile Camera Calibration using Scheimpflug Principle
, 2017 : Depth of field (DOF)is an important problem in close range photogrammetry,in particular for very small distances between the camera and object.The DOF problem can be resolved by tilting the image sensor with respect to the image plane using a tilt ...
H. Chikatsu
semanticscholar +3 more sources
Clinical applications of the Scheimpflug principle in Ophthalmology [PDF]
, 2016 Este artigo apresenta uma revisao dos principios e das aplicacoes clinicas do principio de Scheimpflug na area da imagiologia do segmento anterior. Ao disponibilizar uma imagem tridimensional do segmento anterior, esta tecnologia permite a caraterizacao ...
F. Faria-Correia, Renato Ambrósio
semanticscholar +2 more sources
A Scanning scheimpflug lidar system developed for urban pollution monitoring
EPJ Web of Conferences, 2018 A scanning Scheimpflug lidar system based on the Scheimpflug principle has been developed by employing a high power multimode 808 nm laser diode and a highly integrated CMOS sensor in Dalian University of Technology, Dalian, Northern China.
Yang Yang, Guan Peng, Mei Liang
doaj +2 more sources
Spatial monitoring of flying insects over a Swedish lake using a continuous-wave lidar system
Royal Society Open Science, 2023 We have used a continuous-wave bi-static lidar system based on the Scheimpflug principle in measurements on flying insects above, and in the vicinity of, a small lake located in a forested area in Southern Sweden.
Samuel Jansson +7 more
doaj +1 more source
Crosstalk reduction in tabletop multiview display with fog screen
ETRI Journal, 2022 Fog screens offer a great advantage to be used as scattering screens in three-dimensional displays. In the absence of a fixed rigid form, fog screens work as screens without any physical obstruction.
Hosung Jeon +7 more
doaj +1 more source
Journal of the Korean Ophthalmological Society, 2023 Purpose: We compared corneal higher-order aberration (HOA) measurements between the Pentacam® HR (PC), which uses the Scheimpflug principle, and the iTraceTM aberrometer (IT), which evaluates Placido disc topography.Methods: We retrospectively analyzed ...
Yeon Ju Lim +3 more
semanticscholar +1 more source
Ophthalmic and Physiological Optics, Volume 43, Issue 6, Page 1524-1530, November 2023., 2023 Abstract Purpose To compare the repeatability of central corneal thickness (CCT) measurements taken with a new handheld pachymeter (Occuity PM1 pachymeter) and to assess its agreement with ultrasound biometry and two commercially available optical biometers in participants with normal eyes. Methods Three consecutive CCT measurements of the right eye of
John G. Lawrenson +3 more
wiley +1 more source
Chemie Ingenieur Technik, Volume 95, Issue 10, Page 1592-1602, October 2023., 2023 Two‐stage impeller systems featuring combinations of different impellers were investigated using stereo particle image velocimetry. In the measured flow fields, both involved impellers contribute their characteristic properties, resulting in flow patterns unlike any single‐stage system or combination of identical impellers.
Marian Matzke +4 more
wiley +1 more source
Comparison of central corneal thickness measurements with three different optical devices
Therapeutic Advances in Ophthalmology, 2021 Purpose: The purpose of this study was to compare and evaluate the agreement of central corneal thickness (CCT) values obtained with three different devices working according to optical principle in healthy eyes.
Mehmet Barış Üçer, Erdinç Bozkurt
doaj +1 more source
Phenotype and genotype of concurrent keratoconus and Fuchs endothelial corneal dystrophy
Acta Ophthalmologica, Volume 101, Issue 6, Page 679-686, September 2023., 2023 Abstract Purpose To characterise the phenotype and genotype of concurrent keratoconus and Fuchs endothelial corneal dystrophy (KC + FECD). Methods We recruited 20 patients with concurrent KC + FECD for a retrospective observational case series from the United Kingdom and the Czech Republic.
Siyin Liu +14 more
wiley +1 more source