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Relevant bibliographies by topics / Digital image acquisition

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Academic literature on the topic 'Digital image acquisition'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Digital image acquisition"

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Williams, Mark B., Elizabeth A. Krupinski, Keith J. Strauss, William K. Breeden, Mark S. Rzeszotarski, Kimberly Applegate, Margaret Wyatt, Sandra Bjork, and J. Anthony Seibert. "Digital Radiography Image Quality: Image Acquisition." Journal of the American College of Radiology 4, no. 6 (June 2007): 371–88. http://dx.doi.org/10.1016/j.jacr.2007.02.002.

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Reichenbach, Stephen E. "Characterizing digital image acquisition devices." Optical Engineering 30, no. 2 (1991): 170. http://dx.doi.org/10.1117/12.55783.

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Cowen, A. R., G. J. S. Parkin, and P. Hawkridge. "Direct digital mammography image acquisition." European Radiology 7, no. 6 (July 1997): 918–30. http://dx.doi.org/10.1007/s003300050228.

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Williams, Mark B., Martin J. Yaffe, Andrew D. A. Maidment, Melissa C. Martin, J. Anthony Seibert, and Etta D. Pisano. "Image Quality in Digital Mammography: Image Acquisition." Journal of the American College of Radiology 3, no. 8 (August 2006): 589–608. http://dx.doi.org/10.1016/j.jacr.2006.04.004.

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Chen, Ya. "Digital Image Acquisition and Presentation for High Resolution SEM." Microscopy and Microanalysis 4, S2 (July 1998): 68–69. http://dx.doi.org/10.1017/s1431927600020468.

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Images obtained from an analog SEM are traditionally viewed and recorded from a cathode-ray tube (CRT). Many laboratories use instant film (e.g. Polaroid #52, #55 instant film) to justify image quality and obtain permanent image quickly. Digital imaging provides an alternative approach for image acquisition and recording. One major advantage of digital SEM is image averaging that allows one to improve the signal-to-noise ratio (SNR) from a noisy quick-scan image to reduce charging. SEM signal yield is proportional to incident beam intensity, image acquisition time or duration of beam interaction with specimen (dwell time). The higher beam intensity, or longer the dwell time, the more signal generated. However, for high-resolution SEM imaging, the beam dose and dwell time are limited by drafting, radiation damage, and contamination. Therefore high-resolution biological SEM images invariably have poor SNR.

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Cruz, Domingos, Carla Valentí, Aureliano Dias, Mário Seixas, and Fernando Schmitt. "Digital Image Documentation for Quality Assessment." Archives of Pathology & Laboratory Medicine 125, no. 11 (November 1, 2001): 1430–35. http://dx.doi.org/10.5858/2001-125-1430-didfqa.

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Abstract Objective.—To demonstrate the feasibility of the use of digital images to document routine cases and to perform diagnostic quality assessment. Methods.—Pathologists documented cases by acquiring up to 12 digital images per case. The images were sampled at 25:1, 50:1, 100:1, 200:1, or 400:1 magnifications, according to adequacy in aiding diagnosis. After each acquisition, the referral pathologist marked a region of interest within each acquired image in order to evaluate intrinsic redundancy. The extrinsic redundancy was determined by counting the unnecessary images. Cases were randomly selected and reviewed by one pathologist. The quality of each image, the possibility of accomplishing a diagnosis based on images, and the degree of agreement was evaluated. Results.—During routine practice, 1469 cases were documented using 3902 images. Most of the images were acquired at higher power magnifications. From all acquired cases, 143 cases and their 373 related images were randomly selected for review. In 88.1% (126/143) of reviewed cases, it was possible to accomplish the diagnosis based on images. In 30.2% (38/126) of these cases, the reviewer considered that the diagnosis could be accomplished with fewer images. The referral pathologist and the reviewer found intrinsic redundancy in 57.8% and 54.5% of images, respectively. Conclusions.—Our results showed that digital image documentation to perform diagnostic quality assessment is a feasible solution. However, owing to the impact on routine practice, guidelines for acquisition and documentation of cases may be needed.

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Akbal, Erhan, and Sengul Dogan. "Forensics Image Acquisition Process of Digital Evidence." International Journal of Computer Network and Information Security 10, no. 5 (May 8, 2018): 1–8. http://dx.doi.org/10.5815/ijcnis.2018.05.01.

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Le Floch, H., J. L. Franceschi, T. Gouraud, and P. Launay. "Digital image acquisition in scanning electron microscopy." Scanning 9, no. 1 (1987): 26–30. http://dx.doi.org/10.1002/sca.4950090105.

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Gu, Hong Wei, Wang Zhang, Wen Hai Xu, and Ying Li. "Digital Measurement System for Ship Draft Survey." Applied Mechanics and Materials 333-335 (July 2013): 312–16. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.312.

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In order to overcome the limits of visual observation widely used in ship draft survey, a digital measurement system based on image acquisition and processing is presented. The images of drafts are obtained by an image acquisition unit containing a high definition camera extended to the shipboard from the deck. The draft marks are digitalized in use of a multilayer neural network, and the draft lines are detected by means of color image segmentation algorithm. Finally, the ship's trim are identified based on the relative position of the draft line located at the digitalized draft marks, where the artificial influences are eliminated. The influences of wave may also be reduced by calculating the mean value of the ship's trim obtained from different images.

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Mattoon, J. S. "Digital radiography." Veterinary and Comparative Orthopaedics and Traumatology 19, no. 03 (2006): 123–32. http://dx.doi.org/10.1055/s-0038-1632988.

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SummaryDigital radiography has been used in human medical imaging since the 1980's with recent and rapid acceptance into the veterinary profession. Using advanced image capture and computer technology, radiographic images are viewed on a computer monitor. This is advantageous because radiographic images can be adjusted using dedicated computer software to maximize diagnostic image quality. Digital images can be accessed at computer workstations throughout the hospital, instantly retrieved from computer archives, and transmitted via the internet for consultation or case referral. Digital radiographic data can also be incorporated into a hospital information system, making record keeping an entirely paperless process. Digital image acquisition is faster when compared to conventional screen-film radiography, improving workflow and patient throughput. Digital radiography greatly reduces the need for “retake” radiographs because of wide latitude in exposure factors. Also eliminated are costs associated with radiographic film and x-ray film development. Computed radiography, charged coupled devices, and flat panel detectors are types of digital radiography systems currently available.

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Dissertations / Theses on the topic "Digital image acquisition"

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Joo, Youngjoong. "High speed image acquisition system for focal-plane-arrays." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/14455.

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Schöberl, Michael [Verfasser]. "Modeling of Image Acquisition for Improving Digital Camera Systems / Michael Schöberl." München : Verlag Dr. Hut, 2013. http://d-nb.info/1042308667/34.

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Thongkamwitoon, Thirapiroon. "Digital forensic techniques for the reverse engineering of image acquisition chains." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/33231.

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In recent years a number of new methods have been developed to detect image forgery. Most forensic techniques use footprints left on images to predict the history of the images. The images, however, sometimes could have gone through a series of processing and modification through their lifetime. It is therefore difficult to detect image tampering as the footprints could be distorted or removed over a complex chain of operations. In this research we propose digital forensic techniques that allow us to reverse engineer and determine history of images that have gone through chains of image acquisition and reproduction. This thesis presents two different approaches to address the problem. In the first part we propose a novel theoretical framework for the reverse engineering of signal acquisition chains. Based on a simplified chain model, we describe how signals have gone in the chains at different stages using the theory of sampling signals with finite rate of innovation. Under particular conditions, our technique allows to detect whether a given signal has been reacquired through the chain. It also makes possible to predict corresponding important parameters of the chain using acquisition-reconstruction artefacts left on the signal. The second part of the thesis presents our new algorithm for image recapture detection based on edge blurriness. Two overcomplete dictionaries are trained using the K-SVD approach to learn distinctive blurring patterns from sets of single captured and recaptured images. An SVM classifier is then built using dictionary approximation errors and the mean edge spread width from the training images. The algorithm, which requires no user intervention, was tested on a database that included more than 2500 high quality recaptured images. Our results show that our method achieves a performance rate that exceeds 99% for recaptured images and 94% for single captured images.

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Toker, Emre 1960. "A prototype charge-coupled device based image acquisition system for digital mammography." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277308.

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A Charge-Coupled Device (CCD) based electronic imaging system is proposed to overcome limitations of conventional film/screen mammography systems at no additional risk or discomfort to the patient. This thesis presents the design, implementation and evaluation of a number of prototype systems incorporating the latest advances in x-ray intensifying phosphor screen, fiber optic reducer, and CCD technologies. System design is based on an x-ray intensifying screen optically coupled to a high resolution, cooled, scientific CCD through a fiber optic reducer. The performance of the prototype system is compared to theoretical predictions, to the ideal x-ray detector, and to conventional film/screen detectors. Images of breast phantoms captured by the prototype CCD-based system and by conventional mammography systems are presented. Experimental results indicate that the CCD-based system can provide "film quality" images within seconds of x-ray exposure in needle localization, fine-needle aspiration biopsy, and magnification procedures in mammography.

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Ewing, Gary John. "Studies on the salient properties of digital imagery that impact on human target acquisition and the implications for image measures." Title page, contents and abstract only, 1999. http://hdl.handle.net/2440/37919.

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Electronically displayed images are becoming increasingly important as an interface between man and information systems. Lengthy periods of intense observation are no longer unusual. There is a growing awareness that specific demands should be made on displayed images in order to achieve an optimum match with the perceptual properties of the human visual system. These demands may vary greatly, depending on the task for which the displayed image is to be used and the ambient conditions. Optimal image specifications are clearly not the same for a home TV, a radar signal monitor or an infrared targeting image display. There is, therefore, a growing need for means of objective measurement of image quality, where "image quality" is used in a very broad sense and is defined in the thesis, but includes any impact of image properties on human performance in relation to specified visual tasks. The aim of this thesis is to consolidate and comment on the image measure literatures, and to find through experiment the salient properties of electronically displayed real world complex imagery that impacts on human performance. These experiments were carried out for well specified visual tasks (of real relevance), and the appropriate application of image measures to this imagery, to predict human performance, was considered. An introduction to certain aspects of image quality measures is given, and clutter metrics are integrated into this concept. A very brief and basic introduction to the human visual system (HVS) is given, with some basic models. The literature on image measures is analysed, with a resulting classification of image measures, according to which features they were attempting to quantify. A series of experiments were performed to evaluate the effects of image properties on human performance, using appropriate measures of performance. The concept of image similarity was explored, by objectively measuring the subjective perception of imagery of the same scene, as obtained through different sensors, and which underwent different luminance transformations. Controlled degradations were introduced, by using image compression. Both still and video compression were used to investigate both spatial and temporal aspects of HVS processing. The effects of various compression schemes on human target acquisition performance were quantified. A study was carried out to determine the "local" extent, to which the clutter around a target, affects its detectability. It was found in this case, that the excepted wisdom, of setting the local domain (support of the metric) to twice the expected target size, was incorrect. The local extent of clutter was found to be much greater, with this having implications for the application of clutter metrics. An image quality metric called the gradient energy measure (GEM), for quantifying the affect of filtering on Nuclear Medicine derived images, was developed and evaluated. This proved to be a reliable measure of image smoothing and noise level, which in preliminary studies agreed with human perception. The final study discussed in this thesis determined the performance of human image analysts, in terms of their receiver-operating characteristic, when using Synthetic Aperture Radar (SAR) derived images in the surveillance context. In particular, the effects of target contrast and background clutter on human analyst target detection performance were quantified. In the final chapter, suggestions to extend the work of this thesis are made, and in this context a system to predict human visual performance, based on input imagery, is proposed. This system intelligently uses image metrics based on the particular visual task and human expectations and human visual system performance parameters.
Thesis (Ph.D.)--Medical School; School of Computer Science, 1999.

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Yiu, Yat-shun, and 姚溢訊. "Improving the contrast resolution of synthetic aperture imaging: motion artifact reduction based oninterleaved data acquisition." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4327867X.

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Ramírez, Orozco Raissel. "High dynamic range content acquisition from multiple exposures." Doctoral thesis, Universitat de Girona, 2016. http://hdl.handle.net/10803/371162.

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The limited dynamic range of digital images can be extended by composing different exposures of the same scene to produce HDR images. This thesis is composed of an overview of the state of the art techniques and three methods to tackle the image alignment and deghosting problems in the HDR imaging domain. The first method detects the areas affected by motion, registers the dynamic objects over a reference image, and combines low-dynamic range values to recover HDR values in the whole image. The second approach builds multiscopic HDR images from LDR multi-exposure images. It is based on a patch match algorithm which was adapted and improved to take advantage of epipolar geometry constraints of stereo images. The last method proposes to replace under/over exposed pixels in the reference image by using valid HDR values from other images in the multi-exposure LDR image sequence.
El limitado rango dinámico de las imágenes digitales puede ampliarse mezclando varias imágenes adquiridas con diferentes valores de exposición. Esta tesis incluye un detallado resumen del estado del arte y tres métodos diferentes para alinear las imágenes y corregir el efecto ’ghosting’ en imágenes HDR. El primer método está centrado en detectar las áreas afectadas por el movimiento y registrar los objetos dinámicos sobre una imagen de referencia de modo que se logre recuperar información a lo largo de toda la imagen. Nuestra segunda propuesta es un método para obtener imágenes HDR multiscópicas a partir de diferentes exposiciones LDR. Está basado en un algoritmo de ’patch match’ que ha sido adaptado para aprovechar las ventajas de las restricciones de la geometría epipolar de imágenes estéreo. Por último proponemos reemplazar los píxeles saturados en la imagen de referencia usando valores correctos de otras imágenes de la secuencia.

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Grilo, Frederico José Lapa. "Modelo de processamento de imagem, com múltiplas fontes de aquisição, para manipulação aplicada à domótica." Doctoral thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/25787.

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Este trabalho foca-se em modelos de processamento de imagem para utilização na visão por computador. Modelos de processamento de imagem com multi-aquisição e/ou em multi-perspectiva, para um conhecimento do meio circundante, com possibilidade de comando e controlo na área da domótica e/ou robótica móvel. Os algoritmos desenvolvidos têm a capacidade de serem implementados em blocos de software ou hardware, de forma independente (autónomos), ou integrados como componentes de um sistema mais complexo. O desenvolvimento dos algoritmos privilegiou o seu elevado desempenho, constrangido pela minimização da carga computacional. Nos modelos de processamento de imagem desenvolvidos foram focados 4 tópicos fundamentais de investigação: a) detecção de movimento de objectos e seres humano em ambiente não controlado; b) detecção da face humana, a ser usada como variável de controlo (entre outras aplicações); c) capacidade de utilização de multi-fontes de aquisição e processamento de imagem, com diferentes condições de iluminação não controladas, integradas num sistema complexo com diversas topologias; d) capacidade de funcionamento de forma autónoma ou em rede distribuída, apenas comunicando resultados finais, ou integrados modularmente na solução final de sistemas complexos de aquisição de imagem. A implementação laboratorial, com teste em protótipos, foi ferramenta decisiva no melhoramento de todos os algoritmos desenvolvidos neste trabalho; IMAGE PROCESSING MODELS, WITH MULTIPLE ACQUISITION SOURCES, FOR MANIPULATION IN DOMOTICS Abstract: This work focuses on image processing models for computer vision. Image processing models with multi-acquisition and/or multi-perspective models were developed to acquire knowledge over the surrounding environment, allowing system control in the field of domotics and/or mobile robotics. The developed algorithms have the capacity to be implemented in software or hardware blocks, independently (autonomous), or integrated as a component in more complex systems. The development of the algorithms was focused on high performance constrained by the computational burden minimization. In the developed image processing models it were addressed 4 main research topics: a) movement detection of objects and human beings in an uncontrolled environment; b) detection of the human face to be used as a control variable (among other applications); c) possibility of using multi-sources of acquisition and image processing, with different uncontrolled lighting conditions, integrated into a complex system with different topologies; d) ability to work as an autonomous entity or as a node integrated on a distributed network, only transmitting final results, or integrated as a link in a complex image processing system. The laboratorial implementation, with prototype tests, was the main tool for the improvement of all developed algorithms, discussed in the present work

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Stein, Andrew Neil. "Adaptive image segmentation and tracking : a Bayesian approach." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/13397.

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gorbov, sergey. "Practical Application of Fast Disk Analysis for Selective Data Acquisition." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2230.

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Using a forensic imager to produce a copy of the storage is a common practice. Due to the large volumes of the modern disks, the imaging may impose severe time overhead which ultimately delays the investigation process. We proposed automated disk analysis techniques that precisely identify regions on the disk that contain data. We also developed a high performance imager that produces AFFv3 images at rates exceeding 300MB/s. Using multiple disk analysis strategies we can analyze a disk within a few minutes and yet reduce the imaging time of by many hours. Partial AFFv3 images produced by our imager can be analyzed by existing digital forensics tools, which makes our approach to be easily incorporated into the workflow of practicing forensics investigators. The proposed approach renders feasible in the forensic environments where the time is critical constraint, as it provides significant performance boost, which facilitates faster investigation turnaround times and reduces case backlogs.

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Books on the topic "Digital image acquisition"

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Image acquisition and processing with LabVIEW. Boca Raton, Fla: CRC Press, 2004.

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Pasadena, Calif ). SMPTE Technical Conference and Exhibition (142nd 2000. Content acquisition, processing, and distribution in the digital millennium: Proceedings. White Plains, NY: Society of Motion Picture and Television Engineers, 2000.

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Digital image processing. 6th ed. Berlin: Springer, 2005.

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Practical image processing in C: Acquisition, manipulation, storage. New York: Wiley, 1991.

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Jähne, Bernd. Digital image processing: Concepts, algorithms, and scientific applications. Berlin: Springer-Verlag, 1991.

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Digital image processing: Concepts, algorithms, and scientific applications. 4th ed. Berlin: Springer, 1997.

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Jähne, Bernd. Digital image processing: Concepts, algorithms, and scientific applications. 2nd ed. Berlin: Springer-Verlag, 1993.

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Jähne, Bernd. Digital image processing: Concepts, algorithms, and scientific applications. 3rd ed. Berlin: Springer-Verlag, 1995.

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March-, Liu Bo 1984, Yin Jianfeng 1981 December-, and Tang Libo 1975 February-, eds. Gao fen bian lü lei da yun dong mu biao cheng xiang tan ce ji shu. Beijing: Guo fang gong ye chu ban she, 2014.

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NATO Advanced Study Institute on Picture Archiving and Communication Systems (PACS) in Medicine (1990 Evian-les-Bains, France). Picture archiving and communication systems (PACS). Berlin: Springer-Verlag, 1991.

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Book chapters on the topic "Digital image acquisition"

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Toennies, Klaus D. "Digital Image Acquisition." In Guide to Medical Image Analysis, 23–94. London: Springer London, 2017. http://dx.doi.org/10.1007/978-1-4471-7320-5_2.

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Toennies, Klaus D. "Digital Image Acquisition." In Guide to Medical Image Analysis, 21–82. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2751-2_2.

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Khorram, Siamak, Stacy A. C. Nelson, Halil Cakir, and Cynthia F. van der Wiele. "Digital Image Acquisition: Preprocessing and Data Reduction." In Handbook of Satellite Applications, 809–37. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-7671-0_46.

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Tromans, Christopher, Mary Cocker, and Sir Michael Brady. "Digital Scatter Removal for Mammography and Tomosynthesis Image Acquisition." In Breast Imaging, 260–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31271-7_34.

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PHINN, STUART, KAREN JOYCE, PETER SCARTH, and CHRIS ROELFSEMA. "THE ROLE OF INTEGRATED INFORMATION ACQUISITION AND MANAGEMENT IN THE ANALYSIS OF COASTAL ECOSYSTEM C." In Remote Sensing and Digital Image Processing, 217–49. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-3968-9_10.

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Zhang, Weiyan, Qiang Wang, Ping Yang, and Jing Cao. "Study on Digital Acquisition Method of High Dynamic Range Image." In Lecture Notes in Electrical Engineering, 259–68. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_31.

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Dimitric, D., G. Nisevic, Z. Boskovic, and A. Vasic. "A Study on Performance of a Digital Image Acquisition System in Mammography Diagnostic." In XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010, 331–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13039-7_83.

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Winter, John M., and Robert E. Green. "Real Time Synchrotron Topography Using a Cid Array Camera With Digital Image Acquisition and Processing." In Advances in X-Ray Analysis, 215–19. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1797-9_23.

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Malliori, A., K. Bliznakova, A. Dermitzakis, and N. Pallikarakis. "Evaluation of the effect of acquisition parameters on image quality in digital breast tomosynthesis: Simulation studies." In IFMBE Proceedings, 2211–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-29305-4_580.

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Zhou, Qiming. "Thematic Information from Digital Images." In Geographical Data Acquisition, 221–49. Vienna: Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-6183-8_12.

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Conference papers on the topic "Digital image acquisition"

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Li, Xin, Yingdong Pi, Yanling Jia, Yuhui Yang, Wenguang Hou, and Zhiyong Chen. "Fisheye image rectification using spherical and digital distortion models." In Multispectral Image Acquisition, edited by Hongshi Sang, Xinyu Zhang, and Jun Zhang. SPIE, 2018. http://dx.doi.org/10.1117/12.2305834.

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Pereira, Taissa, Paulo Barbeiro, Joao Lemos, Miguel Morgado, and Eduardo Silva. "Digital image acquisition for ophthalmoscope." In 2012 IEEE 2nd Portuguese Meeting in Bioengineering (ENBENG). IEEE, 2012. http://dx.doi.org/10.1109/enbeng.2012.6331383.

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Mori, Masako, Tetsuo Taguchi, Mikio Takagi, and Yoshimitsu Aoki. "Digital Image Acquisition Method for Film Based Radiographic Testing." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2831.

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Radiographic Test (RT) has been widely used in various industries to detect inner defects of weld structures and other significant components. In terms of digitization, although the ASME Boiler and Pressure Vessel Code Section V provides general outlines of digital image acquisition and processing of RT film, it is not widely implemented in industries as medical radiography instruments. One major reason for not being able to drive RT film digitization is that they cannot quantitatively guarantee each RT film and its digital image resolution directly. To solve these bottlenecks, the present paper proposes two things: 1) Line pair type penetrameter corresponding to current image quality indicators (IQIs) for both hole and wire type, which enables us to not only easily guarantee radiographic testing film resolution but also quantify digitalized RT film image resolution [1]; and 2) Line pair type standard film which is used for digitizing “existing RT film” with commonly used imaging scanners. Prototypes of line pair type penetrameters have been developed and prepared for various materials and verified for its applicability to RT digitalization. Also, prototypes of standard film are manufactured and verified that used with scanners, we can get RT film images of which resolution are quantitatively guaranteed. These two new RT film digitizing methodologies enable us to get “resolution guaranteed film images” and “digital inspection.” Furthermore, this will contribute to “remote inspection” where manufacturers, inspectors, customers and government inspectors can share the results of inspection in electronic format and timely confirm them from a remote place.

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Xu, Wuni, and Lanxiang Zhong. "The analysis of image acquisition in LabVIEW." In 3rd International Conference on Digital Image Processing, edited by Ting Zhang. SPIE, 2011. http://dx.doi.org/10.1117/12.896678.

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Madachy, R. J., K. S. Park, and N. J. Mankovich. "Automatic digital ultrasound image acquisition and networking." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1988. http://dx.doi.org/10.1109/iembs.1988.95306.

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Rosen, Joseph, A. Vijayakumar, and Yuval Kashter. "3D Image Acquisition by Incoherent Digital Holography." In 3D Image Acquisition and Display: Technology, Perception and Applications. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/3d.2017.dw3f.1.

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Vertan, Constantin. "Unexpected Application-Specific Digital Image Acquisition Errors." In 2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI). IEEE, 2019. http://dx.doi.org/10.1109/ecai46879.2019.9041988.

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Pedreros, José, Cristian Pavez, Mario Castro, Gonzalo Avaria, Francisco Watkins, and Leopoldo Soto. "Digital Image Processing and Digital Holography in Optical Diagnostics of Plasmas." In 3D Image Acquisition and Display: Technology, Perception and Applications. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/3d.2016.jw4a.47.

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Taguchi, Tetsuo, Masako Mori, Michiaki Kurosaki, and Mikio Takagi. "Methodology of Digital Image Acquisition and Digital Inspection for Liquid Penetrant and Magnetic Particle Testing." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2840.

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Abstract:

Liquid Penetrant Test (PT) and Magnetic Particle Test (MT) are widely used in industry to detect surface defects. It is extremely important to maintain the repeatability and reproducibility of PT and MT so that they are able to detect any defect that might affect the quality of a product, especially the weld joints of welded structures. In the present paper, calibration methods for visual conditions for PT and MT are proposed with the use of a visual resolution gauge. In addition, a “PT/MT support System” applying digital image processing techniques, which enables us to perform “Remote Inspection” is proposed. A visual resolution gauge is a transparent plate on which line pairs are printed with equivalent hue to the indications of PT and MT, which ensures proper resolution for visual testing. In Japan, the standard for calibration methods for visual conditions using these resolution gauges for PT and MT were published in the Japanese Industrial Standards (JIS) Z 2340 in 2002. By applying these visual resolution gauges, we developed a “PT/MT support system.” In this system, the PT or MT digital images, which are captured by digital camera with resolution gauges, are converted into hue and saturation data by image processing. These images are then divided into two categories of defects and false indications. This is useful in detecting defects and establishing standard evaluation criteria. Furthermore, this will also enable “Remote Inspection,” which is a method in which PT and MT digital images are observed from remote place (as opposed to direct observations). This enables the possibility of inspections being performed from remote places and manufacturers, inspectors, customers, and government inspectors in remote areas can share the inspection results as electronic data.

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Tanner, Steve, Stefan C. Lauxtermann, Martin Waeny, M. Willemin, Nicolas Blanc, Joachim Grupp, Rudolf Dinger, et al. "Low-power digital image sensor for still-picture image acquisition." In Photonics West 2001 - Electronic Imaging, edited by Morley M. Blouke, John Canosa, and Nitin Sampat. SPIE, 2001. http://dx.doi.org/10.1117/12.426972.

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Reports on the topic "Digital image acquisition"

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Schmidl, W. D. Development and application of a high speed digital data acquisition technique to study steam bubble collapse using particle image velocimetry. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/6538038.

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Schmidl, William Daniel. Development and application of a high speed digital data acquisition technique to study steam bubble collapse using particle image velocimetry. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/10158792.

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