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Relevant bibliographies by topics / Flat-field correction

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Journal articles
Dissertations / Theses
Book chapters
Conference papers

Academic literature on the topic 'Flat-field correction'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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Journal articles on the topic "Flat-field correction"

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Palmer, Christopher. "Absolute astigmatism correction for flat field spectrographs." Applied Optics 28, no. 9 (May 1, 1989): 1605. http://dx.doi.org/10.1364/ao.28.001605.

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Lee, Meena, Soonmu Kwon, and Kwon Su Chon. "Analysis of Noise Power Spectrum According to Flat-Field Correction in Digital Radiography." Journal of the Korean Society of Radiology 7, no. 3 (June 30, 2013): 227–32. http://dx.doi.org/10.7742/jksr.2013.7.3.227.

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Fugui Yang, Fugui Yang, Qiushi Wang Qiushi Wang, and Ming Li Ming Li. "Light source system for high-precision flat-field correction and the calibration of an array detector." Chinese Optics Letters 13, no. 4 (2015): 040402–40406. http://dx.doi.org/10.3788/col201513.040402.

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Kwan, Alexander L. C., J. Anthony Seibert, and John M. Boone. "An improved method for flat-field correction of flat panel x-ray detector." Medical Physics 33, no. 2 (January 24, 2006): 391–93. http://dx.doi.org/10.1118/1.2163388.

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Ding Yi, 丁毅, 罗海燕 Luo Haiyan, 施海亮 Shi Hailiang, 李志伟 Li Zhiwei, 韩云飞 Han Yunfei, and 熊伟 Xiong Wei. "New Flat-Field Correction Method for Spatial Heterodyne Spectrometer." Acta Optica Sinica 40, no. 19 (2020): 1930002. http://dx.doi.org/10.3788/aos202040.1930002.

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KASK, PEET, KAUPO PALO, CHRIS HINNAH, and THORA POMMERENCKE. "Flat field correction for high‐throughput imaging of fluorescent samples." Journal of Microscopy 263, no. 3 (March 29, 2016): 328–40. http://dx.doi.org/10.1111/jmi.12404.

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KOJIMA, YASUFUMI. "GRAVITATIONAL CORRECTION IN NEUTRINO OSCILLATIONS." Modern Physics Letters A 11, no. 38 (December 14, 1996): 2965–70. http://dx.doi.org/10.1142/s0217732396002939.

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Piccinini, Filippo, and Alessandro Bevilacqua. "Colour Vignetting Correction for Microscopy Image Mosaics Used for Quantitative Analyses." BioMed Research International 2018 (June 7, 2018): 1–15. http://dx.doi.org/10.1155/2018/7082154.

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Image mosaicing permits achieving one high-resolution image, extending the visible area of the sample while keeping the same resolution. However, intensity inhomogeneity of the stitched images can alter measurements and the right perception of the original sample. The problem can be solved by flat-field correcting the images through the vignetting function. Vignetting correction has been widely addressed for grey-level images, but not for colour ones. In this work, a practical solution for the colour vignetting correction in microscopy, also facing the problem of saturated pixels, is described. In order to assess the quality of the proposed approach, five different tonal correction approaches were quantitatively compared using state-of-the-art metrics and seven pairs of partially overlapping images of seven different samples. The results obtained proved that the proposed approach allows obtaining high quality colour flat-field corrected images and seamless mosaics without employing any blending adjustment. In order to give the opportunity to easily obtain seamless mosaics ready for quantitative analysis, the described vignetting correction method has been implemented in an upgraded release of MicroMos (version 3.0), an open-source software specifically designed to automatically obtain mosaics of partially overlapped images.

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Yu, Yongjian, and Jue Wang. "Heel effect adaptive flat field correction of digital x-ray detectors." Medical Physics 40, no. 8 (July 17, 2013): 081913. http://dx.doi.org/10.1118/1.4813303.

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Kong Ningning, 孔宁宁, 李抄 Li Chao, 夏明亮 Xia Mingliang, 齐岳 Qi Yue, 李大禹 Li Dayu, and 宣丽 Xuan Li. "Research on Flat Field Correction Method in Adaptive Optics Retinal Imaging System." Acta Optica Sinica 31, no. 12 (2011): 1211001. http://dx.doi.org/10.3788/aos201131.1211001.

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Dissertations / Theses on the topic "Flat-field correction"

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Wise, Zachary Gordon Lee. "System Optimization and Patient Translational Motion Correction for Reduction of Artifacts in a Fan-Beam CT Scanner." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1347918440.

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Jonsson, Mikael. "Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes." Thesis, Linköpings universitet, Datorseende, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589.

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The art of reconstructing a real-world scene digitally has been on the mind of researchers for decades. Recently, it has attracted more and more attention from companies seeing a chance to bring this kind of technology to the market. Digital reconstruction of buildings in particular is a niche that has both potential and room for improvement. With this background, this thesis will present the design and evaluation of a pipeline made to find and correct approximately flat surfaces in architectural scenes. The scenes are 3D-reconstructed triangle meshes based on RGB images. The thesis will also comprise an evaluation of a few different components available for doing this, leading to a choice of best components. The goal is to improve the visual quality of the reconstruction. The final pipeline is designed with two blocks - one to detect initial plane seeds and one to refine the detected planes. The first block makes use of a multi-label energy formulation on the graph that describes the reconstructed surface. Penalties are assigned to each vertex and each edge of the graph based on the vertex labels, effectively describing a Markov Random Field. The energy is minimized with the help of the alpha-expansion algorithm. The second block uses heuristics for growing the detected plane seeds, merging similar planes together and extracting deviating details. Results on several scenes are presented, showing that the visual quality has been improved while maintaining accuracy compared with ground truth data.
Konsten att digitalt rekonstruera en verklig miljö har länge varit intressant för forskare. Nyligen har området även tilldragit sig mer och mer uppmärksamhet från företag som ser en möjlighet att föra den här typen av teknik till produkter på marknaden. I synnerhet är digital rekonstruktion av byggnader en nisch som har både stor potential och möjlighet till förbättring. Med denna bakgrund så presenterar detta examensarbete designen för och utvärderingen av en pipeline som skapats för att detektera och rätta till approximativt platta regioner i arkitektoniska miljöer. Miljöerna är 3D-rekonstruerade triangelmeshar skapade från RGB-bilder. Examensarbetet omfattar även utvärdering av olika komponenter för att uppnå detta, som avslutas med att de mest lämpliga komponenterna presenteras. Målet i korthet är att förbättra den visuella kvaliteten av en rekonstruerad modell. Den slutgiltiga pipelinen består av två övergripande block - ett för att detektera initiala plan och ett för att förbättra de funna planen. Det första blocket använder en multi-label energiformulering på grafen som beskriver den rekonstruerade ytan. Straffvärden tilldelas varje vertex och varje båge i grafen baserade på varje vertex label. På så sätt beskriver grafen ett Markov Random Field. Energin är sedan minimerad med alpha-expansion-algoritmen. Det andra blocket använder heuristiker för att låta planen växa, slå ihop närliggande plan och för att extrahera avvikande detaljer. Resultat på flera miljöer presenteras också för att påvisa att den visuella kvaliteten har förbättrats utan att rekonstruktionens noggrannhet har försämrats jämfört med ground truth-data.

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Book chapters on the topic "Flat-field correction"

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Pöyry, Paula, Federica Zanca, and Hilde Bosmans. "Experimental Investigation of the Necessity for Extra Flat Field Corrections in Quality Control of Digital Mammography." In Digital Mammography, 475–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11783237_64.

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Frallicciardi, P. M., G. Mettivier, M. C. Montesi, and P. Russo. "An Image Quality Study of Medipix2 Single Photon Counting Detector Based on Two Kinds of Flat Field Corrections for Breast Computed Tomography Application." In IFMBE Proceedings, 685–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03879-2_192.

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Kumar Srivastava, Deepak. "Oseen’s Flow Past Axially Symmetric Bodies in Magneto Hydrodynamics." In Computational Overview of Fluid Structure Interaction. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96440.

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In the present technical note, drag on axially symmetric body for conducting fluid in the presence of a uniform magnetic field is considered under the no-slip condition along with the matching condition(ρ2U2=H02μ3σ) involving Hartmans number and Reynolds number to define this drag as Oseen’s resistance or Oseen’s correction to Stokes drag is presented. Oseen’s resistance on sphere, spheroid, flat circular disk (broadside) are found as an application under the specified condition. These expressions of Oseen’s drag are seems to be new in magneto-hydrodynamics. Author claims that by this idea, the results of Oseen’s drag on axially symmetric bodies in low Reynolds number hydrodynamics can be utilized for finding the Oseen’s drag in magneto hydrodynamics just by replacing Reynolds number by Hartmann number under the proposed condition.

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Conference papers on the topic "Flat-field correction"

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Seibert, James A., John M. Boone, and Karen K. Lindfors. "Flat-field correction technique for digital detectors." In Medical Imaging '98, edited by James T. Dobbins III and John M. Boone. SPIE, 1998. http://dx.doi.org/10.1117/12.317034.

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Snyder, Donald L., Dennis L. Angelisanti, William H. Smith, and Guang-Ming Dai. "Correction for nonuniform flat-field response in focal plane arrays." In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Paul S. Idell and Timothy J. Schulz. SPIE, 1996. http://dx.doi.org/10.1117/12.255089.

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Yu, Yongjian, and Jue Wang. "Beam hardening-respecting flat field correction of digital X-ray detectors." In 2012 19th IEEE International Conference on Image Processing (ICIP 2012). IEEE, 2012. http://dx.doi.org/10.1109/icip.2012.6467302.

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Kim, Donghyeok, and Jongduk Baek. "Comparison of Flat Field Correction Methods for Photon-Counting Spectral CT Images." In 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2018. http://dx.doi.org/10.1109/nssmic.2018.8824713.

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Park, So E., Jae G. Kim, M. A. A. Hegazy, Min H. Cho, and Soo Y. Lee. "A flat-field correction method for photon-counting-detector-based micro-CT." In SPIE Medical Imaging, edited by Bruce R. Whiting and Christoph Hoeschen. SPIE, 2014. http://dx.doi.org/10.1117/12.2043317.

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Wang, Gang, Dongmei Yan, and Yang Yang. "An automatic stain removal algorithm of series aerial photograph based on flat-field correction." In Remote Sensing, edited by Lorenzo Bruzzone. SPIE, 2010. http://dx.doi.org/10.1117/12.864951.

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Lee, Hyoung-Koo, Do-Il Kim, Sung-Hyeon Kim, Dae-Sop Park, Bo-Young Choe, and Tae-Suk Suh. "An iterative method for flat-field correction of digital radiography when detector is at any position." In Medical Imaging, edited by Michael J. Flynn. SPIE, 2005. http://dx.doi.org/10.1117/12.595394.

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Gray, Jeffrey F. "Analysis and design of dual source illumination methods for lateral correction of the flat-field luminance function." In Optical Science, Engineering and Instrumentation '97, edited by Soyoung S. Cha, James D. Trolinger, and Masaaki Kawahashi. SPIE, 1997. http://dx.doi.org/10.1117/12.279758.

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Kim, Donghyeok, and Jongduk Baek. "Performance comparison of water phantom based flat field correction methods for photon-counting spectral CT images: experimental results." In Physics of Medical Imaging, edited by Hilde Bosmans, Guang-Hong Chen, and Taly Gilat Schmidt. SPIE, 2019. http://dx.doi.org/10.1117/12.2512699.

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Rose, Michael. "Modal Based Correction Methods for the Placement of Piezoceramic Modules." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80789.

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Conventional Finite-Element programs are able to compute the vibration response of mechanical structures. Increasingly also so-called multi-field problems can be solved. For piezoelectric actuators and sensors, electrical degrees of freedom apart from the mechanical ones have to be considered too. The pure actuator effect can also be modelled using the coefficients of thermal expansion. But regarding the optimal placement of flat piezoceramic modules, which couple in the mechanical part through the d31-effect, it proves to be advantageous to consider them after doing the computational complex modal analysis. In this paper, this modal coupling approach is described in detail. It introduces an additional modelling error, because the effect of the stiffness and mass of the modules is not considered in the construction process of the functional space, from which modal shapes are derived. But due to the comparatively small contribution to the global mass and stiffness of such flat devices, this additional error can generally be accepted. Furthermore this error can be reduced to an arbitrarily small amount, if the number of retained eigenmodes is increased and the gain in computational speed is significant. For the calculations, self-written triangle elements with full electro-mechanical coupling have been used, being coded completely in MATLAB. Finally the optimization procedure for the placement of the piezoceramic modules including their mass and stiffness is demonstrated for a test structure.

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