Computer Graphics and Animation as Agents of Personal Evolution in the Arts

1988 ◽  
Vol 1 ◽  
pp. 43 ◽  
Author(s):  
Robin G. King
Keyword(s):  
2019 ◽  
Vol 20 ◽  
pp. 131-146
Author(s):  
Águeda Simó

La aplicación de la Realidad Virtual (RV) en la creación artística se remonta a la década de 1990, cuando se comercializan losprimeros sistemas de RV. Sin embargo, los altos costos y lasdificultades técnicas para realizar y exhibir este tipo de obras limitaron la exploración artística de esta tecnología. En la segundadécada del s. XXI, la RV ha experimentado un renacimiento debido,en parte, a los avances tecnológicos en la computación gráfica y las interfaces físicas, bien como a su abaratamiento. Todos estos factores, están reimpulsado la utilización de la RV en las artes al facilitar la creación y exhibición de las obras. Virtual Reality (VR) art can be traced back to the 1990s, whenthe first VR systems were commercialized. However, the art exploration of this technology was limited due to the high costs and technical difficulties to create and exhibit VR artworks. In the second decade of the 21st century, VR has experienced a renaissance partly because of the technological advances in computer graphics and physical interfaces and the reduction of their cost. All these factors have revitalized the use of VR in the arts by facilitating the creation and exhibition of artworks.


Author(s):  
Cecil E. Hall

The visualization of organic macromolecules such as proteins, nucleic acids, viruses and virus components has reached its high degree of effectiveness owing to refinements and reliability of instruments and to the invention of methods for enhancing the structure of these materials within the electron image. The latter techniques have been most important because what can be seen depends upon the molecular and atomic character of the object as modified which is rarely evident in the pristine material. Structure may thus be displayed by the arts of positive and negative staining, shadow casting, replication and other techniques. Enhancement of contrast, which delineates bounds of isolated macromolecules has been effected progressively over the years as illustrated in Figs. 1, 2, 3 and 4 by these methods. We now look to the future wondering what other visions are waiting to be seen. The instrument designers will need to exact from the arts of fabrication the performance that theory has prescribed as well as methods for phase and interference contrast with explorations of the potentialities of very high and very low voltages. Chemistry must play an increasingly important part in future progress by providing specific stain molecules of high visibility, substrates of vanishing “noise” level and means for preservation of molecular structures that usually exist in a solvated condition.


Author(s):  
Lee D. Peachey ◽  
Lou Fodor ◽  
John C. Haselgrove ◽  
Stanley M. Dunn ◽  
Junqing Huang

Stereo pairs of electron microscope images provide valuable visual impressions of the three-dimensional nature of specimens, including biological objects. Beyond this one seeks quantitatively accurate models and measurements of the three dimensional positions and sizes of structures in the specimen. In our laboratory, we have sought to combine high resolution video cameras with high performance computer graphics systems to improve both the ease of building 3D reconstructions and the accuracy of 3D measurements, by using multiple tilt images of the same specimen tilted over a wider range of angles than can be viewed stereoscopically. Ultimately we also wish to automate the reconstruction and measurement process, and have initiated work in that direction.Figure 1 is a stereo pair of 400 kV images from a 1 micrometer thick transverse section of frog skeletal muscle stained with the Golgi stain. This stain selectively increases the density of the transverse tubular network in these muscle cells, and it is this network that we reconstruct in this example.


Author(s):  
J.R. McIntosh ◽  
D.L. Stemple ◽  
William Bishop ◽  
G.W. Hannaway

EM specimens often contain 3-dimensional information that is lost during micrography on a single photographic film. Two images of one specimen at appropriate orientations give a stereo view, but complex structures composed of multiple objects of graded density that superimpose in each projection are often difficult to decipher in stereo. Several analytical methods for 3-D reconstruction from multiple images of a serially tilted specimen are available, but they are all time-consuming and computationally intense.


PsycCRITIQUES ◽  
2007 ◽  
Vol 52 (31) ◽  
Author(s):  
Paul J. Silvia
Keyword(s):  

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