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Intrinsic camera calibration equipped with Scheimpflug optical device
Proceedings of SPIE, 2015We present the problem of setting up an intrinsic camera calibration under Scheimpflug condition for an industrial application. We aim to calibrate the Scheimpflug camera using a roughly hand positioned calibration pattern with bundle adjustment technique.
Ludovic Macaire
exaly +2 more sources
Composition of sharp-focused image by rotation of Scheimpflug camera
Optics and Laser Technology, 2022Soo-Yeong Yi, Sungjae Min
exaly +2 more sources
Corneal powers measured with a rotating Scheimpflug camera
British Journal of Ophthalmology, 2015Keratometry measures the anterior corneal curvature only. Corneal power is calculated by multiplication with the keratometric refractive index, which takes into account the average negative posterior corneal power. The aim of this study was to calculate and compare various expressions for total corneal power assessed with Scheimpflug camera techniques,
Kristian Næser +2 more
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Applying a dual-Scheimpflug camera to measure tear film thickness
European Journal of Ophthalmology, 2021Purpose: To assess the tear film thickness in healthy individuals by using a dual-Scheimpflug camera and topical 0.1% fluorescein. Methods: A prospective study on healthy individuals who underwent a bilateral tomography examination ...
Shay Keren +4 more
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Reproducibility study on the Scheimpflug Cataract Video Camera
Current Eye Research, 1988The Zeiss Scheimpflug Cataract Video Camera was designed to photograph, store and analyze cataracts in a semi-automated fashion for cross-sectional and longitudinal studies. We conducted a reproducibility study of this system. Twenty-four normal and 61 cataractous eyes were photographed twice by each of two of the authors in the 90 degree meridian and ...
P A, Edwards, M B, Datiles, S B, Green
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Lens density measurement with Scheimpflug camera in vitrectomised eyes
Archivos de la Sociedad Española de Oftalmología (English Edition), 2016To determine whether vitrectomised eyes have a higher lens optical density, when measured with a Scheimpflug camera, compared to non-vitrectomised eyes.The peak and linear Scheimpflug optical density (DOS), and area of both eyes were measured in a sample size of 81 vitrectomised phakic patients.
M A, Ibáñez-Ruiz +2 more
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Anterior segment parameters of rabbits with rotating Scheimpflug camera
Veterinary Ophthalmology, 2014AbstractBackgroundRabbit is one of the most commonly used experimental animals for corneal studies due to similarity of size to human cornea and ease of manipulation. In this study, we assessed anterior segment parameters of the healthy rabbit eyes with Pentacam HR (Oculus, Wetzlar, Germany).MethodsSix‐month‐old, approximately 2.5–3 kg weighted, 30 ...
Harun, Yüksel +8 more
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Scheimpflug Camera-Based Systems
2019The Scheimpflug principles enable the capture of focused images of objects that are not parallel to the camera and lens, such as a curved cornea. This is achieved by careful movement of the image and lens planes. In the Pentacam, this is achieved by rotation around a central axis and capture of 50 meridional pictures.
Melanie Corbett +3 more
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Scheimpflug Camera Calibration Using Lens Distortion Model
2016Scheimpflug principle requires that the image sensor, lens, and object planes intersect at a single line known as “Scheimpflug line.” This principle has been employed in several applications to increase the depth of field needed for accurate dimensional measures.
Fasogbon, Peter +2 more
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