Xin Zhong, Xinwei Wang, Liang Sun, Yan Zhou. Enhancement of rapid lifetime determination for time-resolved fluorescence imaging in forensic examination[J]. Chinese Optics Letters, 2021, 19(4): 041101
- Chinese Optics Letters
- Vol. 19, Issue 4, 041101 (2021)
Fig. 1. (a) Schematic diagram of the wide-field TRFI system, (b) principle of the ERLD method, and (c) process diagram of the ERLD method.
Fig. 2. Experimental results of cross letter written by M&G and GUANGBO under different methods: (a) target picture, (b) intensity image, (c) traditional RLD image, (d) ERLD image, and (e) manual RLD image.
Fig. 3. Variance distribution with (a) filter threshold and (b) maximum and minimum thresholds in ERLD images.
Fig. 4. Results of obliterated document: (a) target picture, (b) intensity image, (c) ERLD image, and (d) manual RLD image.
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Table 1. Different Contrast of Three Methods
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