Speed-dependent automatic zooming for browsing large documents

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Speed-dependent automatic zooming for browsing large documents
We propose a navigation technique for browsing large documents that integrates rate-based scrolling with automatic zooming. The view automatically zooms out when the user scrolls rapidly so that the perceptual scrolling speed in screen space remains constant. As a result, the user can efficiently and smoothly navigate through a large document without becoming disoriented by extremely fast visual flow. By incorporating semantic zooming techniques, the user can smoothly access a global overview of the document during rate-based scrolling. We implemented several prototype systems, including a web browser, map viewer, image browser, and dictionary viewer. An informal usability study suggests that for a document browsing task, most subjects prefer automatic zooming and the technique exhibits approximately equal performance time to scroll bars, suggesting that automatic zooming is a helpful alternative totraditional scrolling when the zoomed out view provides appropriate visual cues.
Takeo Igarashi, Ken Hinckley
Added 01 Aug 2010
Updated 01 Aug 2010
Type Conference
Year 2000
Where UIST
Authors Takeo Igarashi, Ken Hinckley
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