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- W2002256592 abstract "Photospace data previously measured on large image sets have shown that a high percentage of camera phone picturesare taken under low-light conditions. Corresponding image quality measurements linked the lowest quality to theseconditions, and subjective analysis of image quality failure modes identified image blur as the most importantcontributor to image quality degradation.Camera phones without flash have to manage a trade-off when adjusting shutter time to low-light conditions. The shuttertime has to be long enough to avoid extreme underexposures, but not short enough that hand-held picture taking is stillpossible without excessive motion blur. There is still a lack of quantitative data on motion blur. Camera phones often donot record basic operating parameters such as shutter speed in their image metadata, and when recorded, the data areoften inaccurate. We introduce a device and process for tracking camera motion and measuring its Point Spread Function(PSF). Vision-based metrics are introduced to assess the impact of camera motion on image quality so that the low-lightperformance of different cameras can be compared. Statistical distributions of user variability will be discussed." @default.
- W2002256592 created "2016-06-24" @default.
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- W2002256592 date "2009-01-18" @default.
- W2002256592 modified "2023-09-23" @default.
- W2002256592 title "Low light performance of digital cameras" @default.
- W2002256592 doi "https://doi.org/10.1117/12.806003" @default.
- W2002256592 hasPublicationYear "2009" @default.
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