Patent
Method and apparatus for the interactive display of any portion of a spherical image
TLDR
In this paper, an interactive display of any portion of a spherical image is presented, where an input interface comprises a display including a magnification region and a directional cursor for pointing the direction to a next spherical image.Abstract:
Apparatus for interactive display of any portion of a spherical image preferably comprises a personal computer or other digital processor apparatus for storing digital data representative of at least one image having a 180 degree or greater field of view (or hemispherical image). In order to view a selected image portion without warp or distortion at the seam between opposite hemispherical images, edge filtering is applied to eliminate a halo effect. Moreover, an opposite hemispherical image may either be obtained by creating a mirror image of a first hemispherical image or by capturing a second hemispherical image by means of an oppositely directed camera and storing the digital image. Equations for image transformation are based on a lens' characteristics including the lens' radius R. An input interface preferably comprises a display including a magnification region and a directional cursor for pointing the direction to a next spherical image. “Hot spots” can be linked to audio, text, graphics, or other media or trigger a charge for a pay event or identify program links to the next spherical image.read more
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References
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Book
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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.
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Environment Mapping and Other Applications of World Projections
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