Relevant bibliographies by topics / High-speed Videography

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'High-speed Videography'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "High-speed Videography"

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Green, Alan, and Paul Cooper. "EXPERIMENTAL CHARACTERIZATION OF WILDFIRE SPRINKLER SPRAYS USING HIGH-SPEED VIDEOGRAPHY." Atomization and Sprays 29, no. 5 (2019): 381–402. http://dx.doi.org/10.1615/atomizspr.2019031403.

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Bengochea, Leticia Vazquez, Yasa Sampurno, Calliandra Stuffle, Ruochen Han, Chris Rogers, and Ara Philipossian. "Visualizing Slurry Flow in Chemical Mechanical Planarization via High-Speed Videography." ECS Journal of Solid State Science and Technology 7, no. 3 (2018): P118—P124. http://dx.doi.org/10.1149/2.0191803jss.

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Hashimoto, Kazuki, Hikaru Mizuno, Keiichi Nakagawa, Ryoichi Horisaki, Atsushi Iwasaki, Fumihiko Kannari, Ichiro Sakuma, and Keisuke Goda. "High-speed multispectral videography with a periscope array in a spectral shaper." Optics Letters 39, no. 24 (December 12, 2014): 6942. http://dx.doi.org/10.1364/ol.39.006942.

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Hosaka, Keiichi, Antonin Tichy, Masaomi Ikeda, Keiichi Nakagawa, Alireza Sadr, Junji Tagami, Masahiro Takahashi, et al. "Ultra-high-speed videography of resin–dentin interface failure dynamics under tensile load." Dental Materials 35, no. 7 (July 2019): e153-e161. http://dx.doi.org/10.1016/j.dental.2019.04.006.

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Schmidt, Leander, Klaus Schricker, Jean Pierre Bergmann, and Christina Junger. "Effect of Local Gas Flow in Full Penetration Laser Beam Welding with High Welding Speeds." Applied Sciences 10, no. 5 (March 9, 2020): 1867. http://dx.doi.org/10.3390/app10051867.

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Spatter formation is a major issue in deep penetration welding with solid-state lasers at high welding speeds above 8 m/min. In order to limit spatter formation, the use of local gas flows represents a technically feasible solution. By using the gas flow, the pressure balance inside the keyhole, and therefore the keyhole stability, is affected. Existing investigations demonstrate a reduction in spatter and pore formation for partial penetration welding up to a welding speed of 5 m/min. However, the effect of the gas flow is not yet clarified for full penetration welding at welding speeds above 8 m/min. By using a precisely adjustable shielding gas supply, the effect of a local gas flow of argon was characterized by welding stainless steel AISI304 (1.4301/X5CrNi18-10). The influence of the gas flow on the melt pool dynamics and spatter formation was recorded by means of high-speed videography and subsequently analyzed by image processing. Schlieren videography was used to visualize the forming flow flied. By the use of the gas, a change in melt pool dynamics and gas flow conditions was observed, correlating to a reduction in loss of mass up to 70%. Based on the investigations, a model of the acting effect mechanism was given.
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PARATE, Bhupesh Ambadas, Sunil CHANDEL, Himanshu SHEKHAR, and Viwek MAHTO. "Experimental and Theoretical Determination of Water-Jet Velocity for Disruptor Application Using High Speed Videography." Problems of Mechatronics Armament Aviation Safety Engineering 10, no. 2 (June 30, 2019): 23–41. http://dx.doi.org/10.5604/01.3001.0013.2114.

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Experimental and theoretical determination of water-jet velocity using high speed videography for disruptor application is reported in this paper. Water-jet disruptor extensively uses the water as a liquid projectile. It helps to destroy improvised explosive devices (IEDs) or explosive devices (EDs) by breaking detonating cord in the system, making it non-operational. The use of such system against suspected objects is a fashion that continues to be met tremendous achievement. Such a device is also known as explosive ordnance disposal (EOD) disruptor. It is used by bomb technicians or squad to make disable and/or neutralize at a safe distance. The primary purpose of an EOD disruptor is to remotely open or provide destruction to suspected objects. To “remotely open” is to open the suspect objects, exposing their contents. “Provide destruction” means penetrating, cutting, or removing the components of the fusing system in order to make them disable. A secondary purpose of a disruptor is to create a means of access (for example, through a window or door of vehicle or into a trunk). Double and single base propellants are used in the experimental trials for assessing water-jet velocities. An attempt has been made to validate the water-jet velocity using experimentally high speed videography for the first time and making its theoretical analysis by conducting the various trials at a laboratory with different propellants. The stand-off distance between disruptor and target is 0.5 m. This kind of research work is not reported in open access till the date. This is the newness of this research work. The experimental water-jet velocity for single base propellant varies from 349.63 to 503.56 m/s and for double base propellant it varies from 515.07 to 890 m/s. The theoretical water-jet velocity for single base and double base propellant works out to be as 616.44 m/s and 692.62 m/s respectively. From this research study, it is concluded that there is good agreement between theoretical and experimental results.
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Burdge, Justin, Nathan T. Fried, and Ishmail Abdus-Saboor. "Using high-speed videography for objective and reproducible pain measurement on a mouse pain scale." STAR Protocols 2, no. 1 (March 2021): 100322. http://dx.doi.org/10.1016/j.xpro.2021.100322.

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Smith, Nicholas M., Hossein Ebrahimi, Ranajay Ghosh, and Andrew K. Dickerson. "High-speed microjets issue from bursting oil gland reservoirs of citrus fruit." Proceedings of the National Academy of Sciences 115, no. 26 (June 11, 2018): E5887—E5895. http://dx.doi.org/10.1073/pnas.1720809115.

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The rupture of oil gland reservoirs housed near the outer surface of the citrus exocarp is a common experience to the discerning citrus consumer and bartenders the world over. These reservoirs often rupture outwardly in response to bending the peel, which compresses the soft material surrounding the reservoirs, the albedo, increasing fluid pressure in the reservoir. Ultimately, fluid pressure exceeds the failure strength of the outermost membrane, the flavedo. The ensuing high-velocity discharge of oil and exhaustive emptying of oil gland reservoirs creates a method for jetting small quantities of the aromatic oil. We compare this jetting behavior across five citrus hybrids through high-speed videography. The jetting oil undergoes an extreme acceleration to reach velocities in excess of 10 m/s. Through material characterization and finite element simulations, we rationalize the combination of tuned material properties and geometries enabling the internal reservoir pressures that produce explosive dispersal, finding the composite structure of the citrus peel is critical for microjet production.
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Zhang, Cheng-Zhong, Guang-Ming Zhang, Bang-yan Ye, and Li-dong Liang. "Three Dimensional Motion Tracking of a Point on a Bowed Violin String Using High Speed Videography." Acta Acustica united with Acustica 100, no. 3 (May 1, 2014): 574–82. http://dx.doi.org/10.3813/aaa.918736.

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Bobzin, K., M. Öte, M. A. Knoch, I. Alkhasli, and H. Heinemann. "High-Speed Video Analysis of the Process Stability in Plasma Spraying." Journal of Thermal Spray Technology 30, no. 4 (February 16, 2021): 987–1000. http://dx.doi.org/10.1007/s11666-021-01159-1.

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AbstractIn plasma spraying, instabilities and fluctuations of the plasma jet have a significant influence on the particle in-flight temperatures and velocities, thus affecting the coating properties. This work introduces a new method to analyze the stability of plasma jets using high-speed videography. An approach is presented, which digitally examines the images to determine the size of the plasma jet core. By correlating this jet size with the acquisition time, a time-dependent signal of the plasma jet size is generated. In order to evaluate the stability of the plasma jet, this signal is analyzed by calculating its coefficient of variation cv. The method is validated by measuring the known difference in stability between a single-cathode and a cascaded multi-cathode plasma generator. For this purpose, a design of experiment, covering a variety of parameters, is conducted. To identify the cause of the plasma jet fluctuations, the frequency spectra are obtained and subsequently interpreted by means of the fast Fourier transformation. To quantify the significance of the fluctuations on the particle in-flight properties, a new single numerical parameter is introduced. This parameter is based on the fraction of the time-dependent signal of the plasma jet in the relevant frequency range.
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Dissertations / Theses on the topic "High-speed Videography"

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Griffiths, David John. "Developmemt of High Speed High Dynamic Range Videography." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/74990.

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High speed video has been a significant tool for unraveling the quantitative and qualitative assessment of phenomena that is too fast to readily observe. It was first used in 1852 by William Henry Fox Talbot to settle a dispute with reference to the synchronous position of a horse's hooves while galloping. Since that time private industry, government, and enthusiasts have been measuring dynamic scenarios with high speed video. One challenge that faces the high speed video community is the dynamic range of the sensors. The dynamic range of the sensor is constrained to the bit depth of the analog to digital converter, the deep well capacity of the sensor site, and baseline noise. A typical high speed camera can span a 60 dB dynamic range, 1000:1, natively. More recently the dynamic range has been extended to about 80 dB utilizing different pixel acquisition methods. In this dissertation a method to extend the dynamic range will be presented and demonstrated to extend the dynamic range of a high speed camera system to over 170 dB, about 31,000,000:1. The proposed formation methodology is adaptable to any camera combination, and almost any needed dynamic range. The dramatic increase in the dynamic range is made possible through an adaptation of the current high dynamic range image formation methodologies. Due to the high cost of a high speed camera, a minimum number of cameras are desired to form a high dynamic range high speed video system. With a reduced number of cameras spanning a significant range, the errors on the formation process compound significantly relative to a normal high dynamic range image. The increase in uncertainty is created from the lack of relevant correlated information for final image formation, necessitating the development of a new formation methodology. In the proceeding text the problem statement and background information will be reviewed in depth. The development of a new weighting function, stochastic image formation process, tone map methodology, and optimized multi camera design will be presented. The proposed methodologies' effectiveness will be compared to current methods throughout the text and a final demonstration will be presented.
Ph. D.
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Zbasnik, Nathaniel. "The Impact of Invasive Lionfish on the Feeding Performance of Endemic Spotted Scorpionfish." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2333.

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Invasive species, such as the red lionfish, Pterois volitans, are damaging many ecosystems around the world by out-competing native species. However, little work has been done to determine if P. volitans have a direct influence on the feeding performance of native species with which they compete. This study examines the feeding performance in terms of suction pressure, kinematic timing, and excursion distances of spotted scorpionfish, Scorpaena plumieri. Through multiple trials it was examined how S. plumieri modulate their kinematic behavior in response to P. volitans and a conspecific. The creation of a smaller buccal cavity and a decrease in time of buccal expansion may allow individuals to create greater sub-ambient pressures to increase their prey-capture success. High-speed cinematography and pressure transducers were used to determine if S. plumieri modulate feeding performance in the presence of either P. volitans or a conspecific. The results of the study suggest that S. plumieri do not create larger subambient pressures or modulate their feeding kinematics in the presence of P. volitans or a conspecific.
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Angelini, Sarah. "High-Speed Videography on HBT-EP." Thesis, 2014. https://doi.org/10.7916/D87942VV.

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In this thesis, I present measurements from a high-speed video camera diagnostic on the High Beta Tokamak - Extended Pulse (HBT-EP). This work represents the first use of video data to analyze and understand the behavior of long wavelength kink perturbations in a wall-stabilized tokamak. A Phantom v7.3 camera was installed to capture the plasma's global behavior using visible light emissions and it operates at frame rates from 63 to 125 kfps. A USB2000 spectrometer was used to identify the dominant wavelength of light emitted in HBT-EP. At 656 nm, it is consistent with the D-alpha light expected from interactions between neutral deuterium and plasma electrons. The fast camera in combination with an Acktar vacuum black background produced images which were inverted using Abel techniques to determine the average radial emissivity profiles. These profiles were found to be hollow with a radial scale length of approximately 4 cm at the plasma edge. As a result, the behavior measured and analyzed using visible light videography is limited to the edge region. Using difference subtraction, biorthogonal decomposition and Fourier analysis, the structures of the observed edge fluctuations are computed. By comparing forward modelling results to measurements, the plasma is found to have an m/n = 3/1 helical shape that rotates in the electron drift direction with a lab-frame frequency between 5 and 10 kHz. The fast camera was also used to measure the plasma's response to applied helical magnetic perturbations which resonate with the equilibrium magnetic field at the plasma's edge. The static plasma response to non-rotating resonant magnetic perturbations (RMPs) is measured by comparing changes in the recorded image following a fast reversal, or phase flip, of the applied RMP. The programmed toroidal angle of the RMP is directly inferred from the resulting images of the plasma response. The plasma response and the intensityof the RMP are compared under different conditions. I found the resulting amplitude correlations to be consistent with previous measurements of the static response using an array of magnetic sensors. My work has shown that high-speed videography can be an extremely useful diagnostic for measuring edge perturbations in a tokamak. Future measurements, such as those using multiple cameras with different views, are expected to improve our understanding of plasma behavior and to detect edge fluctuations with higher temporal and spatial resolution. Supplementary Videos: Video 1 - This is an example of the video data from Shot 77324, an unforced plasma shot taken with the shells inserted. Video 2 - The strongest naturally-rotating mode has been extracted from a subset of the raw data shown in Video 1 using a biorthogonal decomposition. Long striations can be seen which are common in shots that have the shells inserted. Video 3 - In this video of the raw data from Shot 77537, the shells are retracted. The smooth non-reflective Acktar black background can be seen between the shells. Video 4 - The dominant BD mode from Shot 77537 shows pinwheel-like behavior. With the shells retracted, the plasma encounters fewer physical structures for neutral recycling and this affects the light emissions. Video 5 - This video shows the dominant BD modes from Shot 78029 during which a phase-flip RMP was used to influence the plasma. The mode seems to slow in its rotation as it resonates with the externally-applied field.
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Shih, Shang-chun, and 施尚君. "Implement High-Speed Videography System using Camera Sensor Array with Multiple SoPC platforms." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/00425290399909188868.

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碩士
國立臺灣科技大學
電子工程系
97
The High speed video camera is generally used in industry, academia to study high speed event. But expensive for mostly user, our purpose is cost down the high speed video camera system. In fact, the Stanford Computer Graphic Laboratory has developed a “Stanford Multiple Camera Array” architecture and provided a good result in 2001 [1]. However, the scale of the hardware architecture in their design is too large to be implemented as a portable device. Therefore, we decided to realize the system by reducing the architecture with an embedded platform. On this concept, we have redesigned the high speed video camera system based on SoPC platform in [3][4]. Previous effort of our lab has achieved 120fps frame rate. In order to improve frame rate and system performance further, we keep developing the system. In this paper, we has 8 CMOS cameras in our system and frame rate could achieve 480fps. To improve the system execution time, we modify the auto-exposure algorithm to reduce the counts of exposure up to 31.17% and alter the displacement error rectification algorithm to diminish the complexity of displacement.
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Chen, Shou-Yuan, and 陳首元. "Software Design and Image Rectification for SoPC-Based High-Speed Videography System using Camera Sensor Array." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/72804174461942197810.

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碩士
國立臺灣科技大學
電子工程系
96
High speed video camera is used for widespread applications in industry, academia, sporting world and so forth. But the price is the most significant disadvantage all the time. Fortunately, the Stanford Computer Graphic Laboratory develops a “Stanford Multiple Camera Array” architecture and provides a good result in the high-speed videography application. However, the scale of the hardware architecture in their design is too large to be implemented as a portable device. Therefore, we decided to realize the system by reducing the architecture with an embedded platform. We have redesigned the hardware architecture of the camera array with a SoPC- based platform in [7]. In this paper, we dedicated to design a GUI controlling system and image rectification algorithms for high-speed videography on the SoPC platform. The proposed algorithms are for the most part of auto-exposure and displacement error rectification, and they are designed not only for the accurate rectifying result, the speed will be another key consideration for rectification in this paper.
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Books on the topic "High-speed Videography"

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Ponseqqi. High Speed Photography, Videography and Photonics No. Iv, 693 (High Speed Photography, Videography & Photonics). SPIE-International Society for Optical Engine, 1986.

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Stradling, Gary L. High Speed Photography Videography and Photonics VI. SPIE-International Society for Optical Engine, 1989.

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Roehrenbeck. Ultrahigh and High Speed Photography Videography and Photonics/V 2002. Society of Photo Optical, 1993.

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A, Kyrala George, Snyder Donald R, and Society of Photo-optical Instrumentation Engineers., eds. Ultrahigh- and high-speed photography, videography, and photonics '95: 10-11 July, 1995, San Diego, California. Bellingham, Wash., USA: SPIE, 1995.

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Ultrahigh- And High-Speed Photography, Videography, and Photonics 95: Proceedings : 10-11 July 1995 San Diego, California. Society of Photo Optical, 1995.

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High Speed Photography, Videography, and Phototonics V 17 19 August 1987. Society of Photo Optical, 1987.

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R, Snyder Donald, and Society of Photo-optical Instrumentation Engineers., eds. Ultrahigh- and high-speed photography, videography and photonics: 20-22 July 1992, San Diego, California. Bellingham, Wash., USA: SPIE--the International Society for Optical Engineering, 1993.

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Ultrahigh- and high-speed photography, videography, and photonics '93: 13-14 July 1993, San Diego, California. Bellingham, Wash., USA: SPIE, 1993.

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Ultrahigh- and high-speed photography, videography, and photonics '93: 13-14 July 1993, San Diego, California. Bellingham, Wash., USA: SPIE, 1993.

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High speed photography, videography, and photonics III: August 22-23, 1985, San Diego, California. Bellingham, Wash., USA: SPIE--the International Society for Optical Engineering, 1985.

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Book chapters on the topic "High-speed Videography"

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Van Karsen, Chuck, Troy Bouman, and Geoff Gwaltney. "Operating Deflection Shapes of a Violin String via High Speed/High Resolution Videography." In Topics in Modal Analysis, Volume 7, 637–44. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6585-0_61.

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Ritt, Jason T. "High-Speed Videography of Embodied Active Sensing in the Rodent Whisker System." In Neuromethods, 283–302. Totowa, NJ: Humana Press, 2011. http://dx.doi.org/10.1007/7657_2011_9.

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Conference papers on the topic "High-speed Videography"

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Miller, C. E. "High-Speed Videography Overview." In 32nd Annual Technical Symposium, edited by Gary L. Stradling. SPIE, 1989. http://dx.doi.org/10.1117/12.948680.

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Van Den Berg, W., and H. K. Bouwer. "Low Cost, High Speed Videography." In 17th Int'l Conference on High Speed Photography and Photonics, edited by Donald Hollingworth and Maurice W. McDowell. SPIE, 1987. http://dx.doi.org/10.1117/12.975588.

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Germer, Rudolf K. "High-speed videography with solid state devices." In 24th International Congress on High-Speed Photography and Photonics, edited by Kazuyoshi Takayama, Tsutomo Saito, Harald Kleine, and Eugene V. Timofeev. SPIE, 2001. http://dx.doi.org/10.1117/12.424282.

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Balch, Kris S. "Image Intensification For High Speed Videography." In 33rd Annual Techincal Symposium, edited by Gary L. Stradling. SPIE, 1990. http://dx.doi.org/10.1117/12.962419.

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Miller, C. E. "Inexpensive, Low-Rate High-Speed Videography." In 32nd Annual Technical Symposium, edited by Gary L. Stradling. SPIE, 1989. http://dx.doi.org/10.1117/12.948679.

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Germer, Rudolf K. "Color LED flashes for stroboscopic videography." In 25th international Congress on High-Speed photography and Photonics, edited by Claude Cavailler, Graham P. Haddleton, and Manfred Hugenschmidt. SPIE, 2003. http://dx.doi.org/10.1117/12.516737.

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Lu, S. T. "Videography system for high-speed projectile image catching." In High-Speed Photography and Photonics: 21st International Congress, edited by Ung Kim, Joon-Sung Chang, and Seung-Han Park. SPIE, 1995. http://dx.doi.org/10.1117/12.209613.

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Zhao, Wenyi, Jian Sun, Zengrong Zheng, and Hainong Zheng. "Model MD-1 CCD micro high-speed videography system." In Twenty-Third International Congress on High-Speed Photography and Photonics, edited by Valentina P. Degtyareva, Mikhail A. Monastyrski, Mikhail Y. Schelev, and Alexander V. Smirnov. SPIE, 1999. http://dx.doi.org/10.1117/12.350515.

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Smith, Sarah L. "Application of high-speed videography in sports analysis." In San Diego '92, edited by Donald R. Snyder. SPIE, 1993. http://dx.doi.org/10.1117/12.139125.

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Zheng, Zengrong, Wenyi Zhao, and Zhiqiang Wu. "CCD high-speed videography system with new concepts and techniques." In 22nd Int'l Congress on High-Speed Photography and Photonics, edited by Dennis L. Paisley and ALan M. Frank. SPIE, 1997. http://dx.doi.org/10.1117/12.273352.

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