Scheimpflug Camera-Based Technique for Multi-Point Displacement Monitoring of Bridges [PDF]
Sensors, 2022 Owing to the limited field of view (FOV) and depth of field (DOF) of a conventional camera, it is quite difficult to employ a single conventional camera to simultaneously measure high-precision displacements at many points on a bridge of dozens or ...
Wujiao Dai, Yunsheng Zhang
exaly +6 more sources
Analysis of total corneal astigmatism with a rotating Scheimpflug camera in keratoconus [PDF]
BMC Ophthalmology, 2020 Background To analyze mean corneal powers and astigmatisms on anterior, posterior, and total cornea in patients with keratoconus as calculated according to various keratometric measurements using a Scheimpflug camera. Methods We examined the left eyes of
Jinho Kim +2 more
doaj +5 more sources
Linear-Structured-Light Measurement System Based on Scheimpflug Camera Thick-Lens Imaging [PDF]
SensorsA thick-lens, structured-light measurement model is introduced to overcome the oversights in traditional models, which often disregard the impact of lens thickness.
Jiwen Cui
exaly +4 more sources
Corneal topographic indices of scheimpflug camera in type 2 diabetic and non-diabetic elderly populations [PDF]
BMC Ophthalmology, 2023 Purpose The present study was conducted to determine the corneal topographic indices of Scheimpflug camera in type 2 diabetes patients without diabetic retinopathy (DR), DR and non-diabetic elderly populations.
Alireza Hashemi +4 more
doaj +2 more sources
Scheimpflug Camera and Swept-Source Optical Coherence Tomography in Pachymetry Evaluation of Diabetic Patients [PDF]
Journal of Ophthalmology, 2019 Aim. The comparative analysis of the central and peripheral corneal thicknesses using two different imaging systems: Scheimpflug camera and swept-source OCT was performed to investigate the differences in corneal thickness analysis in diabetic patients ...
Katarzyna Krysik +4 more
doaj +2 more sources
Placido disk-based topography versus high-resolution rotating Scheimpflug camera for corneal power measurements in keratoconic and post-LASIK eyes: reliability and agreement [PDF]
International Journal of Ophthalmology, 2017 AIM: To compare the repeatability/reproducibility of measurement by high-resolution Placido disk-based topography with that of a high-resolution rotating Scheimpflug camera and assess the agreement between the two instruments in measuring corneal power ...
Rachele R. Penna +4 more
doaj +2 more sources
Comparison of corneal measurements in keratoconic eyes using rotating Scheimpflug camera and scanning-slit topography [PDF]
International Journal of Ophthalmology, 2015 AIM: To compare the anterior segment measurements obtained by rotating Scheimpflug camera (Pentacam) and Scanning-slit topography (Orbscan IIz) in keratoconic eyes.
Mohammad Naderan +4 more
doaj +2 more sources
Comparison of keratometric measurements between color light-emitting diode topography and Scheimpflug camera [PDF]
BMC Ophthalmology, 2019 Background To determine the agreement of measurements between color light-emitting diode corneal topography (Cassini) and Scheimpflug camera keratometry (Pentacam HR).
Xian-Hua Cui +3 more
doaj +2 more sources
UAV Vision-Based Method for Multi-Point Displacement Measurement of Bridges [PDF]
SensorsThe challenge of insufficient monitoring accuracy in vision-based multi-point displacement measurement of bridges using Unmanned Aerial Vehicles (UAVs) stems from camera motion interference and the limitations in camera performance.
Deyong Pan +5 more
doaj +2 more sources
Lens densitometry after corneal cross-linking in patients with keratoconus using a Scheimpflug camera [PDF]
Journal of Ophthalmic & Vision Research, 2015 Purpose: To evaluate changes in crystalline lens densitometry following corneal cross-linking (CXL) in keratoconic patients. Methods: In a quasi-experimental study, three-dimensional lens densitometry was performed using the Pentacam Scheimpflug camera ...
Alireza Baradaran-Rafii +3 more
doaj +2 more sources