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A gigapixel image is a digital image bitmap composed of one billion (109) pixels (picture elements), 1000 times the information captured by a 1 megapixel digital camera. A square image of 31,623 pixels in width and height is one gigapixel. Current technology for creating such very high-resolution images usually involves either making digital image mosaics of many high-resolution digital photographs or using a film negative as large as 12" × 9" (30 cm × 23 cm) up to 18" × 9" (46 cm × 23 cm), which is then scanned with a high-end large-format film scanner with at least 3000 dpi resolution. Only a few cameras are capable of creating a gigapixel image in a single sweep of a scene, such as the Pan-STARRS PS1 and the Gigapxl Camera.[1][2]
A gigamacro image is a gigapixel image which is a close-up or macro image.
Terapixel
editA terapixel image is an image composed of one trillion (1012) pixels. Though currently rare, there have been a few instances such as the Microsoft Research Terapixel project for use on the Fulldome projection system,[3] a composite of medical images by Aperio,[4][5] and Google Earth's Landsat images viewable as a time-lapse are collectively considered over one terapixel.[6]
In 2015 the 'Terabite', the world's first terapixel macro image, was released by GIGAmacro.[7]
See also
edit- List of largest photographs
- Powerwall - Computer technology for interactive gigapixel displays
- Gigapan - A Google/NASA/CMU spinout technology that includes a commercially available robotic imager, free stitcher, and web-based viewer
- Gigapxl Project
- Google Cultural Institute
- VR photography
References
edit- ^ "No. 24 - 2007: PS1 Camera Installed". Ifa.hawaii.edu. Archived from the original on 2012-12-27. Retrieved 2013-02-25.
- ^ "Project Overview". Archived from the original on 2006-04-14. Retrieved 2010-11-12.
- ^ "Terapixel". Research.microsoft.com. Retrieved 2016-09-28.
- ^ "Spectrum WebScope: BigTIFF/BreastCancer225.tif". Archived from the original on 2014-02-28. Retrieved 2014-01-07.
- ^ "Aperio Implements BigTIFF, Donates Enhancements to Public Domain". Business Wire. 2007-05-03. Retrieved 2016-09-28.
- ^ Sean Gallagher (2013-06-10). "How Google built a 52-terapixel time-lapse portrait of Earth". Ars Technica. Retrieved 2016-09-28.
- ^ "World's First Terapixel Macro Image". GIGAmacro. Retrieved 2018-02-20.
External links
edit- Gigapixel camera developed at Duke University Archived 2014-02-02 at the Wayback Machine