Academic literature on the topic 'Cartesian coordinate system (3D)'

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Journal articles on the topic "Cartesian coordinate system (3D)"

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Jin, Xin, Xin Liu, Jinyun Guo, Maosheng Zhou, and Kezhi Wu. "A Novel All-Weather Method to Determine Deflection of the Vertical by Combining 3D Laser Tracking Free-Fall and Multi-GNSS Baselines." Remote Sensing 14, no. 17 (2022): 4156. http://dx.doi.org/10.3390/rs14174156.

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The bright stars in the clear night sky with weak background lights should be observed in the traditional deflection of the vertical (DOV) measurement so that the DOV cannot be observed under all-weather conditions, which limits its wide applications. An all-weather DOV measurement method combining three-dimensional (3D) laser tracking free-fall and multi-GNSS baselines is proposed in this paper. In a vacuum environment, the 3D laser tracking technique is used to continuously track and observe the motion of free-fall with high frequency and precision for obtaining 3D coordinate series. The plu
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Shulunov, Vyacheslav. "Transformation of 3D object into flat ribbon for RPS additive manufacturing technology." Rapid Prototyping Journal 23, no. 2 (2017): 273–79. http://dx.doi.org/10.1108/rpj-11-2015-0164.

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Purpose This study aims to give a description of conformal transformation Cartesian coordinates into spiral coordinates using the example of roll powder sintering (RPS) additive manufacturing (AM) technology. RPS has several advantages over dominant AM processes currently available in the market. RPS allows accomplishing designs, which are impossible, very expensive and difficult to create by other methods. The technology requires slicing a 3D object with spiral scanning. Design/methodology/approach The paper describes the possibility of accurate 3D object transformation into a flat ribbon by
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Zakarevičius, Algimantas, Vladislovas Česlovas Aksamitauskas, Algimantas Jakučionis, and Arminas Stanionis. "DETERMINATION OF GEOGRAPHIC POSITION OF OBJECT BY APPLYING 3D POLAR OBSERVATIONS." Aviation 14, no. 2 (2010): 43–48. http://dx.doi.org/10.3846/aviation.2010.07.

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The geographic position of an object is determined by geodetic latitude, geodetic longitude, geodetic and normal height, and height of the object above the surface of the earth. To determine the geographic position of an object, a technologic scheme is recommended: by applying 3D polar observations, the 3D Cartesian coordinates of the object in the local horizontal coordinate system (for example, with an airport runway tied system) are determined; local horizontal 3D Cartesian coordinates are recomputed into the system of geocentric equatorial 3D Cartesian coordinates; the geodetic coordinates
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Shragge, Jeffrey. "Solving the 3D acoustic wave equation on generalized structured meshes: A finite-difference time-domain approach." GEOPHYSICS 79, no. 6 (2014): T363—T378. http://dx.doi.org/10.1190/geo2014-0172.1.

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The key computational kernel of most advanced 3D seismic imaging and inversion algorithms used in exploration seismology involves calculating solutions of the 3D acoustic wave equation, most commonly with a finite-difference time-domain (FDTD) methodology. Although well suited for regularly sampled rectilinear computational domains, FDTD methods seemingly have limited applicability in scenarios involving irregular 3D domain boundary surfaces and mesh interiors best described by non-Cartesian geometry (e.g., surface topography). Using coordinate mapping relationships and differential geometry,
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Wang, Shu, and Yongxin Wang. "The Global Well-Posedness for Large Amplitude Smooth Solutions for 3D Incompressible Navier–Stokes and Euler Equations Based on a Class of Variant Spherical Coordinates." Mathematics 8, no. 7 (2020): 1195. http://dx.doi.org/10.3390/math8071195.

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This paper investigates the globally dynamical stabilizing effects of the geometry of the domain at which the flow locates and of the geometry structure of the solutions with the finite energy to the three-dimensional (3D) incompressible Navier–Stokes (NS) and Euler systems. The global well-posedness for large amplitude smooth solutions to the Cauchy problem for 3D incompressible NS and Euler equations based on a class of variant spherical coordinates is obtained, where smooth initial data is not axi-symmetric with respect to any coordinate axis in Cartesian coordinate system. Furthermore, we
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Wei, Xiu Ting, Qiang Du, and Jing Cheng Liu. "The Application of UG NX Second Development in Centrifugal Pump Impeller Vane 3D Solid Modeling." Applied Mechanics and Materials 20-23 (January 2010): 1286–91. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.1286.

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The hydraulic model of the impeller and points of its vane surface given in the cylindrical coordinates, we can not directly use those data to accomplish the 3D solid modeling of the impeller in CAD systems. Based the Access and the UG NX, this paper puts forwards a new method for modeling centrifugal pump impeller vanes and presents the implementing procedure. And the method includes the following steps: 1) defining the data structure of hydraulic models; 2)converting the vane surface data from the cylindrical coordinate system to the cartesian coordinate system; 3)constructing the vane’s wor
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Shragge, Jeffrey. "Acoustic wave propagation in tilted transversely isotropic media: Incorporating topography." GEOPHYSICS 81, no. 5 (2016): C265—C278. http://dx.doi.org/10.1190/geo2015-0311.1.

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Simulating two-way acoustic wavefield propagation directly from a free-surface boundary in the presence of topography remains a computational challenge for applications of reverse time migration (RTM) or full-waveform inversion (FWI). For land-seismic settings involving heavily reworked geology (e.g., fold and thrust belts), two-way wavefield propagation operators should also handle commonly observed complex anisotropy including tilted transversely isotropic (TTI) media. To address these issues, I have extended a system of coupled partial differential equations used to model 3D acoustic TTI wa
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Filić, Mia, Renato Filjar, and Marko Ševrović. "Expression of GNSS Positioning Error in Terms of Distance." PROMET - Traffic&Transportation 30, no. 3 (2018): 305–10. http://dx.doi.org/10.7307/ptt.v30i3.2304.

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This manuscript analyzes two methods for Global Navigation Satellite System positioning error determination for positioning performance assessment by calculation of the distance between the observed and the true positions: one using the Cartesian 3D rectangular coordinate system, and the other using the spherical coordinate system, the Cartesian reference frame distance method, and haversine formula for distance calculation. The study shows unresolved issues in the utilization of position estimates in geographical reference frame for GNSS positioning performance assessment. Those lead to a rec
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Shragge, Jeff, and Guojian Shan. "Prestack wave-equation depth migration in elliptical coordinates." GEOPHYSICS 73, no. 5 (2008): S169—S175. http://dx.doi.org/10.1190/1.2956349.

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We extend Riemannian wavefield extrapolation (RWE) to prestack migration using 2D elliptical-coordinate systems. The corresponding 2D elliptical extrapolation wavenumber introduces only an isotropic slowness model stretch to the single-square-root operator. This enables the use of existing Cartesian finite-difference extrapolators for propagating wavefields on elliptical meshes. A poststack migration example illustrates advantages of elliptical coordinates for imaging turning waves. A 2D imaging test using a velocity-benchmark data set demonstrates that the RWE prestack migration algorithm gen
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Vivi Melinda and Andree Emmanuel Widjaja. "Virtual Reality Applications in Education." International Transactions on Education Technology (ITEE) 1, no. 1 (2022): 68–72. http://dx.doi.org/10.34306/itee.v1i1.194.

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Virtual reality (VR) is a computer-based simulation technology that enables users to interact while experiencing oneself in a virtual environment.Virtual reality (VR) combines three-dimensional (3D) objects combined with hearing and vision to create effects for users as if they were in a virtual environment. It should be noted here that the use of Virtual Reality is very effective in the field of education Given that a user can observe things in cyberspace from all angles, including above, below, to the left, right, back, and ahead, the 3D coordinate system used in virtual reality (VR) is base
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Dissertations / Theses on the topic "Cartesian coordinate system (3D)"

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Culaciati, Marianna. "Three-dimensional tooth displacement following orthodontic, orthognathic and restorative treatment: mathematical analysis and case study." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12130.

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A single 3D virtual system in orthodontic-surgical and restorative patients has not been developed. The study aims were to evaluate: (1) the performance of a Cartesian coordinate system (CSYS) to measure translational and rotational tooth displacement, and (2) maxillary and mandibular tooth, occlusion and bone displacement with the CSYS and a lingual landmarks mathematical registration method. Eleven maxillary and mandibular dental models following an orthodontic surgical and restorative treatment sequence case were retrospectively collected. These were laser scanned and processed using revers
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Ahlman, Gustav. "Improved Temporal Resolution Using Parallel Imaging in Radial-Cartesian 3D functional MRI." Thesis, Linköpings universitet, Datorseende, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69123.

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MRI (Magnetic Resonance Imaging) is a medical imaging method that uses magnetic fields in order to retrieve images of the human body. This thesis revolves around a novel acquisition method of 3D fMRI (functional Magnetic Resonance Imaging) called PRESTO-CAN that uses a radial pattern in order to sample the (kx,kz)-plane of k-space (the frequency domain), and a Cartesian sample pattern in the ky-direction. The radial sample pattern allows for a denser sampling of the central parts of k-space, which contain the most basic frequency information about the structure of the recorded object. This all
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Alkhadour, Wissam M. "Reconstruction of 3D scenes from pairs of uncalibrated images. Creation of an interactive system for extracting 3D data points and investigation of automatic techniques for generating dense 3D data maps from pairs of uncalibrated images for remote sensing applications." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4933.

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Much research effort has been devoted to producing algorithms that contribute directly or indirectly to the extraction of 3D information from a wide variety of types of scenes and conditions of image capture. The research work presented in this thesis is aimed at three distinct applications in this area: interactively extracting 3D points from a pair of uncalibrated images in a flexible way; finding corresponding points automatically in high resolution images, particularly those of archaeological scenes captured from a freely moving light aircraft; and improving a correlation approach to dense
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Alkhadour, Wissam Mohamad. "Reconstruction of 3D scenes from pairs of uncalibrated images : creation of an interactive system for extracting 3D data points and investigation of automatic techniques for generating dense 3D data maps from pairs of uncalibrated images for remote sensing applications." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4933.

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Much research effort has been devoted to producing algorithms that contribute directly or indirectly to the extraction of 3D information from a wide variety of types of scenes and conditions of image capture. The research work presented in this thesis is aimed at three distinct applications in this area: interactively extracting 3D points from a pair of uncalibrated images in a flexible way; finding corresponding points automatically in high resolution images, particularly those of archaeological scenes captured from a freely moving light aircraft; and improving a correlation approach to dense
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Naser, Inam. "Rotated Polar Coordinate system, its Solid Vector Mathematical Operations, and 3-D Unsharp Masking and Gradient-Based Laplacian Spatial Filters of a Field of Vectors for Geometrical Edges Detection." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592135647774656.

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Soares, Vanessa Ribeiro. "Batalha naval e suas aplicações." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/5909.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2016-08-10T13:40:03Z No. of bitstreams: 2 Dissertação - Vanessa Ribeiro Soares - 2016.pdf: 11844437 bytes, checksum: 03d509603ea96f2647ea2764aea87d17 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-08-10T13:42:09Z (GMT) No. of bitstreams: 2 Dissertação - Vanessa Ribeiro Soares - 2016.pdf: 11844437 bytes, checksum: 03d509603ea96f2647ea2764aea87d17 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Mad
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Stålberg, Martin. "Reconstruction of trees from 3D point clouds." Thesis, Uppsala universitet, Avdelningen för systemteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-316833.

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The geometrical structure of a tree can consist of thousands, even millions, of branches, twigs and leaves in complex arrangements. The structure contains a lot of useful information and can be used for example to assess a tree's health or calculate parameters such as total wood volume or branch size distribution. Because of the complexity, capturing the structure of an entire tree used to be nearly impossible, but the increased availability and quality of particularly digital cameras and Light Detection and Ranging (LIDAR) instruments is making it increasingly possible. A set of digital image
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Chen, Jie. "Spatiotemporal roles of retinoic acid signaling in the cephalochordate amphioxus." Thesis, Lyon, École normale supérieure, 2011. http://www.theses.fr/2011ENSL0605.

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L'acide rétinoïque (AR) est un morphogène dérivé de la vitamine A, qui intervient dans le contrôle de l'organogenèse, de la prolifération et de la différenciation cellulaires chez les Chordés. Dans ce contexte, nous avons étudié les régulations spatio-temporelles de la voie de signalisation de l’AR au cours du développement de l’amphioxus, en mettant l'accent sur l’espèce européenne Branchiostoma lanceolatum.Nous avons tout d'abord inhibé ou activé la voie de signalisation de l’AR lors du développement embryonnaire en traitant des embryons d’amphioxus à des doses variables de composés pharmaco
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Chang, Kai Yao, and 張凱堯. "A Two-Dimensional Model of Gradually Varied Unsteady Bend Channel Flow in Cartesian Coordinate System." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/34348572965473199341.

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Zhang, Chun-Chieh, and 張俊傑. "The Design and Development of Scratch Programming Language for "Cartesian Coordinate System" and "line equation" Course." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/07194445437363350611.

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碩士<br>淡江大學<br>教育科技學系數位學習在職專班<br>100<br>The aim of the study is to design and construct a teaching material for learning the mathematical Scratch Programming Language developed specific for junior high school students. Design-Based Research was used as the research theory and the basis of teaching material development. By utilizing seventh graders’ mathematics lessons, students were guided to use the Visualization Tool Scratch Programming Language. Through the problem-solving based learning process, it ignited students’ learning motivations as well as increased learning effectiveness. As the th
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Books on the topic "Cartesian coordinate system (3D)"

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Jeutner, Valentin. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198808374.003.0001.

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This part introduces and illustrates the idea of a legal dilemma by means of a hypothetical Cartesian coordinate system. The introduction alsosets out the objectives of the book. It does so with reference to three research questions concerning, first, the definition of a legal dilemma, second, the possibility of the existence of a legal dilemma, and, finally, the way in which the international legal order should address legal dilemmas. Subsequently, the introduction outlines five examples to which the book keeps referring. The examples concern the regulation of nuclear weapons, submarine warfa
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Book chapters on the topic "Cartesian coordinate system (3D)"

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Liu, Yanmin, Zhuanzhou Zhang, Yuanfeng Luo, and Xiangbiao Wu. "PSO Based on Cartesian Coordinate System." In Intelligent Computing in Bioinformatics. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09330-7_43.

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Jain, Anita, and Kavita Khare. "3D CORDIC Algorithm Based Cartesian to Spherical Coordinate Converter." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-42024-5_40.

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Chung, Y. H. "Teaching Thermodynamic Relations Using a Story and Two-Dimensional Cartesian Coordinate System." In Chemistry Education in the ICT Age. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9732-4_3.

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Poliakovsky, Arkady. "The Total Simplified Lagrangian of the Gravity in a Cartesian Coordinate System." In Lorentzian Geometrical Structures with Global Time, Gravity and Electrodynamics. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-23762-1_4.

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Biswas, Ranita, Gaëlle Largeteau-Skapin, Rita Zrour, and Eric Andres. "Rhombic Dodecahedron Grid—Coordinate System and 3D Digital Object Definitions." In Discrete Geometry for Computer Imagery. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14085-4_3.

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Dangel, R. J. Z., T. Schmitz-Rode, and C. Disselhorst-Klug. "Modelling of Eye-Hand Motions in a Common 3D Coordinate System." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03882-2_56.

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Liu, S. G., K. Peng, F. S. Huang, Guo Xiong Zhang, and P. Li. "A Portable 3D Vision Coordinate Measurement System Using a Light Pen." In Key Engineering Materials. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-977-6.331.

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Zhao, Huan, Wei Li, Lei Wang, et al. "Research on the Permeability Model of Fractal Fractured Media in 3D Coordinate System." In Computational and Experimental Simulations in Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-27053-7_98.

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Poliakovsky, Arkady. "The Euler-Lagrange for the Lagrangian of the Gravitational and Electromagnetic Fields in a Cartesian Coordinate System." In Lorentzian Geometrical Structures with Global Time, Gravity and Electrodynamics. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-23762-1_6.

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Poliakovsky, Arkady. "Gravity Field of Spherically Symmetric Massive Resting Body in a Coordinate System Which Is Cartesian and Inertial Simultaneously." In Lorentzian Geometrical Structures with Global Time, Gravity and Electrodynamics. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-23762-1_7.

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Conference papers on the topic "Cartesian coordinate system (3D)"

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Hirokawa, Keishun, Kosuke Hayashi, Akira Sou, Akio Tomiyama, and Naoki Takada. "Numerical Simulation of Single Drops in a Vertical Pipe Using Various Coordinate Systems." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37491.

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The effects of the diameter ratio λ (= d/D, where d and D are the diameters of a drop and a pipe, respectively), the Morton number M and the viscosity ratio κ (= μd/μc, where μ is the viscosity and the subscripts d and c are the dispersed fluid particle and the continuous phase, respectively) on terminal velocities and shapes of single drops rising through stagnant liquids in a vertical pipe are investigated experimentally. Then, the drops in the pipe are simulated using a volume tracking method with various coordinate systems, i.e., three-dimensional (3D) cylindrical coordinates, 3D general c
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Siddappaji, Kiran, Mark G. Turner, Soumitr Dey, Kevin Park, and Ali Merchant. "Optimization of a 3-Stage Booster: Part 2—The Parametric 3D Blade Geometry Modeling Tool." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46664.

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A parametric approach for blade geometry design has been developed to obtain 3D blade models. The geometry of the blade is defined by a basic set of parameters that are first obtained from an axisymmetric solver. These parameters include the leading edge meridional coordinates, flow angles, axial chord, and the meridional coordinates of streamlines. Other parameters such as thickness to chord ratio need to be defined. Using these parameters the 2D airfoils are created and are stacked radially using one of the many multiple options that define the stacking axes from several additional parameter
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Siddappaji, Kiran, Mark G. Turner, and Ali Merchant. "General Capability of Parametric 3D Blade Design Tool for Turbomachinery." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69756.

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A design tool for generating 3D blades for various turbomachinery applications using a parametric approach has been developed. The tool can create a variety of 3D blade geometries based on only a few basic parameters and limited interaction with a CAD system. A general approach for creating the blade geometries is implemented which makes it robust and easy to create different 3D blade shapes for various turbomachinery components. The geometric and aerodynamic parameters are used to create 2D airfoils and these airfoils are stacked on the desired stacking axis. The tool generates a specified nu
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Kim, Kwangwon, Jaehyung Ju, and Doo-Man Kim. "Three-Dimensional Compliant Cellular Materials: A Mechanism Based Material Design." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36567.

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Cellular materials have two important properties: structures and mechanisms. These properties have important applications in materials design; in particular, they’re used to determine the modulus and yield strain. The objective of this study is to gain a better understanding of these two properties and to explore the synthesis of three-dimensional (3D) compliant cellular materials (CCMs) with compliant porous structures (CPSes) generated from modified hexagonal honeycombs. An orthotropic constitutive CCM model in the Cartesian coordinate system is constructed using the strain energy method, wh
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Zhu, Na, and Sean Wu. "Track and Trace Multiple Incoherent Sound Sources in 3D Space in Real Time." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-13181.

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This paper presents a methodology for tracking and tracing multiple incoherent sound sources in 3D space in real time. A salient feature of this methodology is its capability of handling all types of sound signals, including broadband, narrowband, continuous, impulsive, and tonal (sinusoidal) sounds over the audible frequency range (20 to 20,000 Hz). Locations of sound sources are indicated in terms of the Cartesian coordinates in real time. The target sources are viewed through an automatic tracking camera covering 350 degree solid angle. The hardware includes four microphones, a thermometer,
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Khoda, Bashir, Ibrahim T. Ozbolat, and Bahattin Koc. "Modeling and Fabrication of Hollowed Scaffolds With Interconnected Variational Porosity Architecture." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64666.

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This paper presents a novel computer-aided modeling of 3D hollowed tissue scaffolds with a controlled internal architecture. Functionally gradient variational porosity architecture is proposed with continuous material deposition planning scheme. The complex internal architecture of scaffolds is discritized into sub-regions accumulated from ruling lines that are generated from outer to inner features. The desired pore size and hence the porosity have been achieved by geometrically partitioning those sub-regions based on the area while meeting the tissue scaffold design constraint. Thus the desi
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Chuang, C. T., M. J. Kuo, and M. C. Lu. "Digital image on Cartesian coordinate convert system." In International conference on Communication Technology and Application. WIT Press, 2014. http://dx.doi.org/10.2495/cta140361.

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Aras, Eyyup. "Tool Contact Maps by Rectangular Grid Decomposition." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48668.

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This paper is intended to contribute to ongoing research [1–3] in geometric modeling of the virtual machining. In geometric modeling the tool paths are verified by performing the machining simulations and also the cutter workpiece engagements (CWEs) are extracted. CWE geometry is a key input to force calculations and feed rate scheduling in milling operations. Finding these engagements is challenging due to the complicated and changing intersection geometry between the cutter and the in-process workpiece. This paper presents a discrete model based methodology for extracting CWEs generated duri
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Raju, Vomsheendhur, and Majura F. Selekwa. "Autonomous Topographic Mapping of Unknown Environments by Dynamic Visual Data." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95497.

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Abstract The simultaneous localization and mapping (SLAM) process is what makes it possible for autonomous vehicles to navigate in unknown environments. Early SLAM algorithms used and relied on ranging sensors only. In recent years, there has been an increased interest in vision-based SLAM (V-SLAM) due to the low-cost nature of digital cameras available in the market compared to ranging sensors. V-SLAM uses successive camera frames to either track features in individual frames and triangulates the position to construct a 3-D map or determine the vehicle speed by measuring the rate of change of
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Chuang, Chin-Tun, Cheng-Pei Tsai, Tien-Yu Tang, and Yu-An Cho. "Label System on Cartesian Coordinate by Using a Digital Camera." In 2010 International Conference on Internet Technology and Applications (iTAP). IEEE, 2010. http://dx.doi.org/10.1109/itapp.2010.5566356.

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