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33.2: Viewing Angle: A Matter of Perspective
Author(s) -
Fiske T. G.,
Silverstein L. D.,
Penn C.,
Kelley E. F.
Publication year - 1998
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1833918
Subject(s) - viewing angle , perspective (graphical) , goniometer , confusion , cartesian coordinate system , polar coordinate system , visual angle , computer science , horizontal and vertical , orthogonal coordinates , computer graphics (images) , geometry , computer vision , artificial intelligence , mathematics , psychology , liquid crystal display , psychoanalysis , operating system
Setting viewing‐angle requirements and specifications for displays depends on how viewing‐angle is defined. There is significant confusion in the industry regarding the definition and use of horizontal and vertical viewing‐angle. Moreover, the relations between viewing‐angle defined in Cartesian coordinates and common representations in spherical and goniometer‐specific coordinates are often confused. This paper will show how incorrect definitions of viewing‐angle and failures to apply appropriate transformations between coordinate systems lead to errors in setting specifications and reporting results.