7 March 2013 Nokia PureView oversampling technology
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This paper describes Nokia’s PureView oversampling imaging technology as well as the product, Nokia 808 PureView, featuring it. The Nokia PureView imaging technology is the combination of a large, super high resolution 41Mpix with high performance Carl Zeiss optics. Large sensor enables a pixel oversampling technique that reduces an image taken at full resolution into a lower resolution picture, thus achieving higher definition and light sensitivity. One oversampled super pixel in image file is formed by using many sensor pixels. A large sensor enables also a lossless zoom. If a user wants to use the lossless zoom, the sensor image is cropped. However, up-scaling is not needed as in traditional digital zooming usually used in mobile devices. Lossless zooming means image quality that does not have the digital zooming artifacts as well as no optical zooming artifacts like zoom lens system distortions. Zooming with PureView is also completely silent. PureView imaging technology is the result of many years of research and development and the tangible fruits of this work are exceptional image quality, lossless zoom, and superior low light performance.
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Tero Vuori, Tero Vuori, Juha Alakarhu, Juha Alakarhu, Eero Salmelin, Eero Salmelin, Ari Partinen, Ari Partinen, } "Nokia PureView oversampling technology", Proc. SPIE 8667, Multimedia Content and Mobile Devices, 86671C (7 March 2013); doi: 10.1117/12.2020064; https://doi.org/10.1117/12.2020064

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