Polyfocal display: Difference between revisions

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{{Definition|'''Polyfocal display''' is an interactive technique that allows to selectively zoom in to a section of an image. Scaling is described by a (two–dimensional) [[''magnification function'']], providing for generating several foci — each having induvidual magnification–parameters and correspondingly adjustable distortion in the regions further away from the focus.}}
{{Definition|'''Polyfocal display''' is an interactive technique that allows to selectively zoom in to a section of an image. Scaling is described by a (two–dimensional) ''[[magnification function]]'', providing for generating several foci — each having induvidual magnification–parameters and correspondingly adjustable distortion in the regions further away from the focus.}}


[[Image:magnificationfunction.jpg|thumb|250px|Magnification function]]
[[Image:magnificationfunction.jpg|thumb|250px|Magnification function]]

Revision as of 17:29, 7 May 2005

Polyfocal display is an interactive technique that allows to selectively zoom in to a section of an image. Scaling is described by a (two–dimensional) magnification function, providing for generating several foci — each having induvidual magnification–parameters and correspondingly adjustable distortion in the regions further away from the focus.
File:Magnificationfunction.jpg
Magnification function

Polyfocal display was proposed by Naftali Kadmon and Eli Shlomi for presentation of statistical data on cartographic maps.