期刊
JOURNAL OF BIOMEDICAL OPTICS
卷 15, 期 5, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.3494566
关键词
fluorescence lifetime imaging microscopy; optimal signal gating; total variation image denoising
资金
- National Institutes of Health [NIH CA-114542]
- NATIONAL CANCER INSTITUTE [R01CA114542] Funding Source: NIH RePORTER
In biological applications of fluorescence lifetime imaging, low signals from samples can be a challenge, causing poor lifetime precision. We demonstrate how optimal signal gating (a method applied to the temporal dimension of a lifetime image) and novel total variation denoising models (a method applied to the spatial dimension of a lifetime image) can be used in time-domain fluorescence lifetime imaging microscopy (FLIM) to improve lifetime precision. In time-gated FLIM, notable fourfold precision improvements were observed in a low-light example. This approach can be employed to improve FLIM data while minimizing sample light exposure and increasing imaging speed. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3494566]
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