Computer Graphics for the Analysis of Realist Master Art: Current Methods and Future Challenges

In order to better meet user needs, user-oriented interactive design introduces computer graphics technology to generate, process, and transmit graphical information more effectively, thereby enhancing the practicality, simplicity, convenience, and enjoyment of interactive media. This paper aims to discuss the application of computer graphics in interactive media design. In order to analyze and compare the use of different computer graphics (CG) technologies in different scenarios, this paper classifies the interactive media into three categories according to the different focuses of the purposes, namely distributed interaction media, commercial interaction media and informational interaction media, and discusses the application of computer graphics in interactive media design with specific examples. This paper analyzes and compares the use of different CG technologies in interactive media according to their different purposes, namely distributed interaction media, commercial interaction media and informational interaction media. The paper concludes with a summary of the current applications of computer graphics in interactive media design, and an outlook on the future use of CG technology in interactive media design.

Development of a reservoir simulation model involves collection and analysis of an enormous amount of reservoir and well data for initial input. Computer graphics is the most effective tool for geologists and engineers to visualize, verify, and analyze the input data. After each simulation run, simulation engineers then have to depend heavily on computer graphics to analyze an even more intimidating amount of simulation results data. This is especially true at Saudi Aramco because of the large simulation models used to simulate the world's largest hydrocarbon reservoirs. Saudi Aramco's EXPEC Computer Center supports a wide spectrum of computer graphics applications to aid the exploration and engineering staffs through the entire cycle of reservoir characterization. The graphics applications help during the pre-simulation model data analysis as well as in the post-simulation results analysis. Larger and more accurate simulation models are currently being developed In Saudi Aramco. Computer technology (both software and hardware) needs to advance continually such that computer graphics can be utilized as an effective and efficient engineering tool by reservoir simulation professionals. This paper addresses Saudi Aramco's experience in dealing with very large simulation models and using computer graphics as an engineering tool. The program efficiency, device dependence, and data management problems will be discussed. The computer speed, data storage and access methods, data transmission speed, and graphics devices will also be detailed.

Bezier and B-spline curves are among the most powerful tools used for complex graphical approximation. In this paper, we will use them to recreate the hydrographic map of the Republic of Macedonia. The results obtained in this paper show that cubic spline curves have smaller average deviation in respect to B-spline curves, in contrast to Bezier curves. The results and the images are obtained by using the software package Wolfram Mathematica. Key words: Bezier curves; B-spline; cubic spline REFERENCES [1] Vera B. Anand: Computer Graphics and Geometric Modeling for Engineers, John Wiley & Sons Inc. 1996. [2] V. Andova, S. Atanasova, K. Bacev, Gj. Peev, G.Kostov: Approximation of map borders using Mathematica, ETAI (2015). [3] R. H. Bartels, J. C. Beatty, B. A. Barsky: An Introduction to Splines for Use in Computer Graphics and Geometric Modeling, Morgan Kaufmann Publishers Inc. 1987. [4] R. C. Beach: An Introduction to the Curves and Surfaces of Computer-Aided Design, Van Nostrand Reinhold, 1991. [5] E. Cohen: Discrete B-splines and Subdivision Techniques in Computer Aided Geometric Design and Computer Graphics, International Association for Bridge and Structural Engineering, 1979. [6] C. De Boor: A Practical Guide to Splines, Revised Edition, Springer, 1978. [7] G. Farin: Curves and Surfaces for CAGD. A Practical Guide, fifth edition, Academic Press, 2002. [8] G. Farin, J. Hoschek, M.-S. Kim: Handbook of Computer Aided Geometric Design, Elsevier, 2002. [9] G. Farin: NURBS: From Projective Geometry to Practical Use, 2nd edition, AK Peters, 1999. [10] J. Fiorot, P. Jeannin: Rational Curves and Surfaces, Wiley, 1992. [11] J. Gallier: Curves and Surfaces. In: Geometric Modeling:Theory and Algorithms, Morgan Kofman Publishers,2000. [12] G. G. Lorentz: Bernstein Polynomials, University of Toronto Press, 1953. [13] R. F. Riesenfeld: Applications of B-spline Approximation to Geometric Problems of Computer-Aided Design, Syracuse University, 1973. [14] D. Rogers: An Introduction to NURBS with Historical Perspective, Elsevier, 2001. [15] W. Rudin: Real and Complex Analysis, McGraw-Hill Higher Education, 1986. [16] D. Salomon: Curves and Surfaces for Computer Graphic, Springer, 2006. [17] S. Wagon: Mathematica in Action Problem Solving Through Visualization and Computation, Springer, 2010. [18] S. Wolfram: The Mathematica Book, Fifth Edition, Wolfram Media, 2003.

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und MechanikVolume 86, Issue 2 p. 150-150 Book Review Book Review: Helmut Ratschek and Jon Rokne, Geometric Computations with Interval and New Robust Methods. Applications in Computer Graphics, GIS and Computational Geometry G. Alefeld, G. Alefeld KarlsruheSearch for more papers by this author G. Alefeld, G. Alefeld KarlsruheSearch for more papers by this author First published: 20 January 2006 https://doi.org/10.1002/zamm.200690009AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume86, Issue2February 2006Pages 150-150 RelatedInformation

Computer graphics is receiving much attention in the development of interactive educational software, multimedia systems, and many other applications. It not only adds a new dimension to such applications but also makes them more exciting and dynamic. Furthermore, the use of computer graphics is already well accepted in computer science education. If skillfully and relevantly used, it can be an important component of computer-assisted instruction, which is an educational application area with tremendous potential.

Deformable models are a useful tool in computer vision and computer graphics. A deformable model is a curve (in two dimensions) or a surface (in three dimensions), whose shape, position, and orientation are controlled through a set of parameters. Deformable models can represent manufactured objects, human faces and skeletons, and even bodies of fluid. In computer graphics, we use deformable models for animations and simulations, whereas in computer vision applications, such as tracking and fitting, deformable models help to restrict the family of possible solutions. We introduce the use of a directed acyclic graph (DAG) to describe the position and Jacobian of each point on the surface of deformable models. This data structure, combined with a topological description of the points, is simple, powerful, and extremely useful for both computer vision and computer graphics applications. We show a computer vision application, 3D deformable face tracking, and a computer graphics application, cyberglove data visualization and calibration.

Computer graphics applications, software, and hardware research, are examined and evaluated in Continental Western Europe. Growth has been slow. The reasons are the high cost of hardware and the complexity of the required software. The past reveals a rather dim picture. Mechanical engineering applications have shown some promising success. Electrical engineering applications have been effective mainly for PCB and IC mask layout only. Interactive graphic software has not yet effectively found its way outside Fortran. APL-G seems an interesting graphic extension of the language APL. Promising trends appear to be on the horizon. They are related to hardware and software trade-offs, as, for example, in the TALENT System.The need for computer graphics still exists. The hardware and software tradeoffs will receive more attention. Success in computer graphics will depend upon advances in computer systems design, especially programming languages and systems. Computer graphics has yet to come of age.

A practical guide to finite-element-method (FEM) simulation of 3D deformable solids reviews essential offline FEM simulation techniques: complex nonlinear materials, invertible treatment of elasticity, and model-reduction techniques for real-time simulation.

This paper presents a novel software model for public crisis management system in the modern city. Urban emergency such as various hazards will result in serious casualties and property loss. With the development of information technology, scientific crisis management system aided by computers should be constructed to mitigate the disasters. On the one hand, the application of Computer Graphics (CG) and Geographic Information System (GIS) for urban crisis management system is discussed. On the other hand, the integration of CG and GIS in the field of emergency management is proposed for the reference of government agencies.

70 years ago, the bloodiest of wars had ended. Literally,
 the next day the USA started the ruthless Cold war against the
 USSR. Goal – to destroy the USSR as political and military enemy.
 Ironically, it was the Russian Empire (and the Soviet Union
 – its successor) that first in the world recognized the USA as an
 independent state. In 1991, the goal was achieved. Russia considered
 the cold war over, and the USA a partner in all matters. In
 vain. It is no secret the CIA felt home in Russian governmental
 buildings. It is no secret that Department of State advisers sat in
 every Russian Ministry. Unsurprisingly, imposed reforms have led
 to destruction of industry, agriculture, and medicine. The country
 was flooded with imports, and Russia has lost the basic security of
 state.
 Obviously, the same benefactors from the CIA forced the Ministry
 of Education and Science to adopt the surrogate instead of the
 Soviet system of education. Moreover, the well-wishers perfectly
 knew that this surrogate was of very low quality. Introduction of
 the American system of education instead of the Soviet one is the
 manifestation of the cold war.
 Artificial confrontation of computer graphics vs. descriptive
 geometry arose. Enforced antagonism resulted in elimination of
 teaching descriptive geometry in many areas. Known: computers
 and computer graphics come from the USA. Note that geometry
 experts do not oppose to the use of computer graphics. More obscure
 is the position of some of our partners, when they advocate destruction
 of science in favor of a drawing instrument. In this mortal
 combat of geeks, the author sees a manifestation of the same cold
 war that the United States maintains with Russia. Deduction: it is
 so because computer graphics took all its geometric methods of
 constructing from descriptive geometry.
 Minimal program of overcoming this geometric crisis in higher
 education is provided.

The primary purpose of the research is to investigate long-term memory and its relationship to computer graphics incorporated shots in commercial Tamil films. Also,this research focused on the use of visual effects shots for the effective memory and recalling factors of the Tamil film audience. Throughout the sequels of movies like Enthiran and Bahubali, many of CG incorporated symbols, signs, and shots are extensively used to create visual pleasure among the audience. So, the movie sequels like Enthiran, 2.0, Bahubali 1-The beginning, and Bahubali 2-The conclusion are selected to study the positive impact of CG incorporated shots. According to the psychologist’s views, there are three classifications present in memory. They are sensory memory, short-term memory, and long-term memory. Sensory memory is a very basic type of memory, which present only as long as the visual /sound is present in front of the viewers. The short-term memory is present only up to 20 seconds. Long-term memory has the capability to store unlimited information and data for a few minutes to many years. To store the information in long-term memory the visual or auditory stimulus should be very strong. In this research, the qualitative analysis of interview data is used to study the relationships. Furthermore, the cued recall test is used to gather the information from the film audience. Computer graphics are used in the Enthiran and Bahubali movie series to create visual signs. These visual signs are present in the form of crowns, armours, swords, chariots, architectures, guns, costumes, tattoos, and property materials. This research shows that stories are effectively visualized with the use of computer graphics and visual effects. In addition, the interesting result of this research is the memory and recall ability of the film audience.This research concludes that the effective use of CG incorporated shots gives more effectiveness to the memory due to the individual’s thought engagement with the story.

A person's emotions and state of mind are apparent in their face and eyes. As a Latin proverb states: The face is the portrait of the mind; the eyes, its informers.. This presents a huge challenge for computer graphics researchers in the generation of artificial entities that aim to replicate the movement and appearance of the human eye, which is so important in human-human interactions. This State of the Art Report provides an overview of the efforts made on tackling this challenging task. As with many topics in Computer Graphics, a cross-disciplinary approach is required to fully understand the workings of the eye in the transmission of information to the user. We discuss the movement of the eyeballs, eyelids, and the head from a physiological perspective and how these movements can be modelled, rendered and animated in computer graphics applications. Further, we present recent research from psychology and sociology that seeks to understand higher level behaviours, such as attention and eye-gaze, during the expression of emotion or during conversation, and how they are synthesised in Computer Graphics and Robotics.

Numerous current Computer Graphics methods produce video sequences as their outcome. The merit of these methods is often judged by assessing the quality of a set of results through lengthy user studies. We present a full-reference video quality metric geared specifically towards the requirements of Computer Graphics applications as a faster computational alternative to subjective evaluation. Our metric can compare a video pair with arbitrary dynamic ranges, and comprises a human visual system model for a wide range of luminance levels, that predicts distortion visibility through models of luminance adaptation, spatiotemporal contrast sensitivity and visual masking. We present applications of the proposed metric to quality prediction of HDR video compression and temporal tone mapping, comparison of different rendering approaches and qualities, and assessing the impact of variable frame rate to perceived quality.

Subdivision schemes (SSs) have been the heart of computer-aided geometric design almost from its origin, and several unifications of SSs have been established. SSs are commonly used in computer graphics, and several ways were discovered to connect smooth curves/surfaces generated by SSs to applied geometry. To construct the link between nonstationary SSs and applied geometry, in this paper, we unify the interpolating nonstationary subdivision scheme (INSS) with a tension control parameter, which is considered as a generalization of 4-point binary nonstationary SSs. The proposed scheme produces a limit surface having C^{1} smoothness. It generates circular images, spirals, or parts of conics, which are important requirements for practical applications in computer graphics and geometric modeling. We also establish the rules for arbitrary topology for extraordinary vertices (valence ≥3). The well-known subdivision Kobbelt scheme (Kobbelt in Comput. Graph. Forum 15(3):409–420, 1996) is a particular case. We can visualize the performance of the unified scheme by taking different values of the tension parameter. It provides an exact reproduction of parametric surfaces and is used in the processing of free-form surfaces in engineering.

We present a generalization of thin‐plate splines for interpolation and approximation of manifold‐valued data, and demonstrate its usefulness in computer graphics with several applications from different fields. The cornerstone of our theoretical framework is an energy functional for mappings between two Riemannian manifolds which is independent of parametrization and respects the geometry of both manifolds. If the manifolds are Euclidean, the energy functional reduces to the classical thin‐plate spline energy. We show how the resulting optimization problems can be solved efficiently in many cases. Our example applications range from orientation interpolation and motion planning in animation over geometric modelling tasks to color interpolation.