imaging system for measuring borehole optical imager

Borehole imaging - PetroWiki

Optical imaging. Downhole cameras were the first borehole-imaging devs. Today they furnish a true high-resolution color image of the wellbore. The principal drawback is that they require a transparent fluid in liquid-filled holes. Unless transparent fluid can be injected ahead of the lens, the method fails. This requirement has limited the

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Borehole Imaging - Optical Scanner - Borehole Wireline

12/12/2014  Optical image resolution below 1mm is possible. The greater the image resolution, the lower the logging speed. User control over light, frame rate and exposure settings covers most borehole conditions. Optical scanner data files can be very large. Data transfer speeds of the logging system control the logging speed during acquisition. A logging

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Optical Borehole Imaging SpringerLink

Optical imaging is the oldest borehole imaging technique. The earliest devs were simply photographic cameras, which were lowered into the borehole on a cable. Photographic techniques have a much higher resolution than other borehole imaging techniques, but the early systems did not produce an image until after the dev was retrieved to the surface and the film was developed. The

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Author: Stefan M. Luthi

OBI40 OBI40 GR QL40 OBI optical borehole imager

The optical borehole imager generates a continuous true color image of the borehole wall via an optical imaging system using a downhole CCD camera that records the image of the borehole wall in a prism. A built in high precision orientation package incorporating a 3-axis magnetometer and 3-axis accelerometer allows orientation of the images to a

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Optical Imaging

Optical imaging is a technique for non-invasively looking inside the body, as is done with x-rays. But, unlike x-rays, which use ionizing radiation, optical imaging uses visible light and the special properties of photons to obtain detailed images of organs and tissues as well

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USGS: Acoustic and optical borehole-wall imaging for

Acoustic and optical borehole-wall imaging for fractured-rock aquifer studies By John H. Williamsa,* and Carole D. Johnsonb a U.S. Geological Survey, 425 Jordan Road, Troy, NY, 12180, USA b U.S. Geological Survey, 11 Sherman Place, Storrs, CT, 06269 USA Abstract Imaging with acoustic and optical televiewers results in continuous and oriented 360j views

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发布:Journal of Applied Geophysics 2004John H Williams Carole D Johnson从属关系: United States Geological Survey关于:Bedding Optical imaging Water quality Well logging Borehole Hydraulics

Optical Imaging

Optical imaging is a technique for non-invasively looking inside the body, as is done with x-rays. But, unlike x-rays, which use ionizing radiation, optical imaging uses visible light and the special properties of photons to obtain detailed images of organs and tissues as well

More

USGS: Acoustic and optical borehole-wall imaging for

Acoustic and optical borehole-wall imaging for fractured-rock aquifer studies By John H. Williamsa,* and Carole D. Johnsonb a U.S. Geological Survey, 425 Jordan Road, Troy, NY, 12180, USA b U.S. Geological Survey, 11 Sherman Place, Storrs, CT, 06269 USA Abstract Imaging with acoustic and optical televiewers results in continuous and oriented 360j views

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发布:Journal of Applied Geophysics 2004John H Williams Carole D Johnson从属关系: United States Geological Survey关于:Bedding Optical imaging Water quality Well logging Borehole Hydraulics

BOREHOLE TELEVIEWER LOGGING METHODS

continuous, detailed and orientated 360º true color image of the borehole walls using a unique optical imaging system. This can be rapidly interpreted, using data from the internal orientation module, to obtain a complete feature analysis that includes dip, strike, frequency and fracture aperture.

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Imaging: Getting the Picture Downhole

hardware, measurement physics, processing power, Figure 2. LWD azimuthal imaging. The bulk density image from an adnVISION tool (Track 3) provides information about the borehole circumference in a horizontal well. Density data are also presented as curves (Tracks 3, 4 and 5) and are displayed according to the quadrant from which the data were

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OPTICS TESTING: MTF quickly - Laser Focus World

The hidden advantage of this method is that it is extremely well suited for measuring the MTF of a system. As we noted earlier, many components within an imaging system have an associated MTF, the product of which is the system MTF. This assumes perfect focus, which is clearly not guaranteed.

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An imaging system integrating optical coherence

The fluid over the ocular surface is known as the preeal tear film (PCTF). The PCTF is approximately 35 µm thick and it provides lubrication for the ea, as well as a smooth optical interface for light to enter the eye and pass to the retina .The outermost layer of the PCTF is known as the lipid layer (LL), a thin film composed of polar and nonpolar lipids.

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Odyssey Fc Dual-Mode Imaging System for Western Blots

Quick image acquisition and organization with Image Studio Software. Image Studio Software can be used for quick acquisition and organization of images from most LI-COR imaging systems, including the Odyssey Fc. The simple interface puts high-quality data at your fingertips with a few simple clicks and without manual camera adjustments or

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Optical Borehole - Digital Surveying

Optical Borehole Televiewer OBI52 The Optical Borehole Televiewer OBI52 from electromind represents a major technological advance in the field of borehole imaging sondes. The results obtained with this sonde surpass anything previously possible in terms of image

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Compressed sensing for practical optical imaging

Compressed sensing for practical optical imaging systems: A tutorial . Conference Paper September 2012 with 70 Reads How we measure 'reads' A 'read' is

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US8823948B2 - System for measuring the image quality

Methods for measuring the image quality of a projection objective include providing a measuring structure on an image-side of the projection objective, providing an immersion fluid between the projection objective and the measuring structure, directing light through the projection objective and the immersion fluid to the measuring structure while shielding the measuring structure from the

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Image-forming optical system - Wikipedia

In optics, an image-forming optical system is a system capable of being used for imaging.The diameter of the aperture of the main objective is a common criterion for comparison among optical systems, such as large telescopes. The two traditional systems are mirror-systems and lens-systems (), although in the late twentieth century, optical was introduced.

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Image Measuring Instrument, Image Measuring

Alibaba offers 1,577 image measuring instrument products. About 20% of these are testing equipment, 5% are other measuring gauging tools, and 1% are laser rangefinders. A wide variety of image measuring instrument options are availe to you, such as auto testing machine, abrasion tester, and plastic testing machine.

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Optimization of electro-optical imaging system with an

We propose a new method to improve the design of electro- optical imaging system using an end-to-end model of the imaging systems and a combination of image quality criteria. Firstly, we used an imaging systems simulator to produce an output image, which is the distorted version of the input scene. Secondly, we calculate an objective quotation

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A system for measuring borehole diametric deformation

A system for measuring borehole diametric deformation based on mechanical contact and micro-optical imaging . Article in Measurement 130 July 2018 with 3 Reads How we measure

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Machine vision systems STEMMER IMAGING

Machine vision systems. If you are looking to solve a factory automation or inspection problem with machine vision, a so-called vision system is often the best option as they contain a ready to deploy package of camera, processor, software and PLC integration.. STEMMER IMAGING can provide you with the perfect machine vision system for your application as we continually evaluate a wide range of

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Underwater Optical Image Processing: A Comprehensive Review

method and widely used for laser-imaging systems in turbid water. The most of recent underwater laser-imaging methods were summarized in Ref. [8]. In a laser-imaging system, the camera is adjacent to the light source, and the target is behind the turbid medium. This system operates by selecting the

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Wave-Optics Analysis of Pupil Imaging - NASA

experimental setup, although generic for pupil imaging systems in general, has application to the James Webb Space Telescope (JWST) optical system where the pupil images are used as a constraint to the wavefront sensing and control process.3 2. WAVE-OPTICS MODEL The optical system used for the analysis is illustrated in Fig. 1. The aperture

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How to Measure Modulation Transfer Function (1) «

In a simple wording, the modulation transfer function or MTF is a measure of the spatial resolution of an imaging component. The latter can be an image sensor, a lens, a mirror or the complete camera. In technical terms, the MTF is the magnitude of the optical transfer function, being the Fourier transform of the response to a point illumination.

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Test and Measurement: MTF provides an image-quality

FIGURE 4. Measurement of MTF is accomplished through a simple optical setup (below). A backlit test pattern is placed at the focal plane of the lens, and the image of this pattern is viewed through the lens with a telescope. A CCD camera captures and digitizes the image for analysis. To produce an accurate MTF measurement, the test equipment

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Imaging software Nikon Metrology

Welcome to Nikon Metrology, please select your preferred region and language.

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Optical Gas Imaging FLIR Systems

FLIR optical gas imaging (OGI) cameras can help you detect methane, sulfur hexafluoride, and hundreds of other industrial gases quickly, accurately, and safely - without shutting down systems. With FLIR OGI cameras, you can scan broad sections of equipment rapidly and survey areas that are hard to reach with traditional contact measurement

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Quantification of tumor fluorescence during intraoperative

13/11/2015  Intraoperative optical cancer imaging is an emerging technology in which surgeons employ fluorophores to visualize tumors, identify tumor-positive margins and lymph nodes containing metastases.

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A tutorial for designing fundamental imaging systems

the image. We should decide it at first. Magnification for fundamental optical system is shown in Figure.3.1. There are 2 lenses and object with height of h o. Object is placed at front focal plane of an objective lens, and an image is given at back focal plane of an imaging lens. Magnification of this optical system mmm is given

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Fiber Optic Projection-Imaging System for Shape

A -based projection-imaging system is proposed for shape measurement in confined space. Owing to the flexibility of imaging s, the system can be used in special scenarios that are difficult for conventional experimental setups. Three experiments: open space, closed space, and underwater are designed to demonstrate the strength and weakness of the system.

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NIS-Elements Microscope Imaging Software

Nikon's NIS-Elements revolutionizes imaging software for the microscopy market by combining automated intelligence to microscopes, cameras, components and peripherals with powerful archiving, analysis, visualization and archiving tools. Its intuitive interface simplifies flow and speeds up image acquisition times while providing powerful features such as image stitching, object counting

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Principles of Remote Sensing - Centre for Remote

Optical remote sensing systems are classified into the following types, depending on the number of spectral bands used in the imaging process. Panchromatic imaging system: The sensor is a single channel detector sensitive to radiation within a broad wavelength range. If the wavelength range coincide with the visible range, then the resulting

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Infrared Imaging Systems: Design, Analysis, Modeling,

View program details for SPIE Defense + Security conference on Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXIX

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Development of a Test Method for Image Stabilizing Systems

Development of a Test Method for Image Stabilizing Systems Diploma Thesis at the Department of Imaging Sciences and Media Technology Cologne University of Applied Sciences Author: Borys Golik Cologne Matr.-Nr. 11038740 First Reviewer: Prof. Dr. G. Fischer Cologne Second Reviewer: Dipl. Ing. D. Wueller Frechen Cologne, October 21, 2006. Entwicklung eines Verfahrens zur Qualitätsbeurteilung

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Clinical applications of Scheimpflug imaging in cataract

07/11/2011  Scheimpflug imaging has since advanced significantly and modern day instruments provide comprehensive imaging and topographic data of the anterior segment. In this article the clinical applications and limitations of Scheimpflug imaging in modern cataract surgery patients are discussed. This article reviews recent on assessment of lens

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International Journal of Molecular Imaging

Introduction and Purpose. Monitoring solid tumor growth and metastasis in small animals is important for cancer research. Noninvasive techniques make longitudinal studies possible, require fewer animals, and have greater statistical power. Such techniques include FDG positron emission tomography (FDG-PET), magnetic resonance imaging (MRI), and optical imaging, comprising bioluminescence

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