Proceedings ArticleDOI
Structured video and the construction of space
Judith Donath
- Vol. 2411, pp 344-354
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TLDR
In this article, the authors review projective geometry in the context of image compositing and then introduce perceptually based com-position, which is not perceptually ideal, see for instance the distortions seen at the edges of wide angle photographs.Abstract:
Image sequences can now be synthesized by compositing elements - objects, backgrounds, people -frompre-existing sourceimages. What are the rules that govern the placement of these elements in their new frames? If geometric projection is assumed togovern the composition, there is some freedom to move the elements about, but the range of placements is quite limited. Further-more, projective geometry is not perceptually ideal —think of the distortions seen at the edges of wide angle photographs. Thesedistortions are not found in perspective paintings: painters modify the portrayal of certain objects to make them perceptually cor-rect. This paper first reviews projective geometry in the context of image compositing and then introduces perceptually based com-position. Its basis in human vision is analyzed and its application to image compositing discussed.Keywords: structured video, image compostion, visual perception, perspective.1. Structured Video and SpaceIn traditional video the frame is indivisible and the sequence —read more
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Dissertation
Inhabiting the virtual city: the design of social environments for electronic communities
Judith Donath,Andrew Lippman +1 more
TL;DR: Thesis (Ph. D.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1997 as mentioned in this paper, Boston, MA. Butler et al., 1997.
Dissertation
Perspective in Two Dimensions for Computer Graphics
TL;DR: This thesis presents the framework, a computer program, developed to create the perspective of pictures based on the geometry practices of artists, which generalizes the planar geometry that solves the challenge of depicting 3D.
References
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Book
Computer Graphics: Principles and Practice
TL;DR: This chapter discusses the development of Hardware and Software for Computer Graphics, and the design methodology of User-Computer Dialogues, which led to the creation of the Simple Raster Graphics Package.
Book
Handbook of perception and human performance
TL;DR: This handbook covers theory and methods; basic visual processes; auditory, kinesthetic, cutaneous, and vestibular senses; and space and motion perception; and human performance.
Book ChapterDOI
Computer graphics—principles and practice
TL;DR: These are the short notes for a two hour tutorial on principles and practice of computer graphics and scientific visualization and they cannot completely replace the contents of the tutorial transparencies and slides since restrictions in space and print quality do not permit the inclusion of figures and example images.
Journal ArticleDOI
Representing moving images with layers
J.Y.A. Wang,Edward H. Adelson +1 more
TL;DR: A system for representing moving images with sets of overlapping layers that is more flexible than standard image transforms and can capture many important properties of natural image sequences.