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Efficient memory management strategy in hypermedia with interactive MR images

S Bondestam1, A E Lamminen, H J Aronen

  • 1Department of Radiology, Meilahti Hospital, Helsinki University Central Hospital, Finland.

Acta Radiologica (Stockholm, Sweden : 1987)
|September 1, 1995
PubMed
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This study presents a hypermedia application for interactive image sets, minimizing random access memory (RAM) usage. The application efficiently displays images from external files, enabling interactive learning with low memory requirements.

Area of Science:

  • Computer Science
  • Multimedia Systems
  • Human-Computer Interaction

Background:

  • Hypermedia applications often face challenges with memory allocation, particularly for interactive image sets.
  • Developing accessible stand-alone products that minimize random access memory (RAM) usage is crucial for public use.

Purpose of the Study:

  • To design and implement a novel hypermedia application that efficiently manages memory for interactive image sets.
  • To ensure the application is accessible to the public and requires minimal RAM for interactive image and text display.

Main Methods:

  • Developed a hypermedia application using SuperCard and PICS image stacks on a Macintosh LC computer.
  • Stored images in external files, outside the main application, to conserve RAM.
  • Implemented interactivity through bitmap objects activated by pointing, linking text objects to corresponding anatomical images.

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Main Results:

  • Achieved effective memory usage by storing images externally.
  • Images were displayed as floating frames within approximately 1 second.
  • The stand-alone application with up to 100 cards operated on a 2 Mb RAM setup.
  • External image stack sizes were independent of RAM limitations.

Conclusions:

  • The developed hypermedia application offers an efficient solution for interactive image sets with minimal RAM requirements.
  • External image storage is a viable strategy for reducing memory footprint in multimedia applications.
  • The application provides an accessible and interactive learning tool, particularly for subjects like anatomy.