Fingerprint Analysis and Representation

Maltoni, Davide; Maio, Dario; Jain, Anil K.; Feng, Jianjiang

doi:10.1007/978-3-030-83624-5_3

Cited by 4 publications

(2 citation statements)

References 285 publications

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“…At present, fingerprints and vein patterns are of interest as widely used subjects in biometric authentication. In fingerprint biometrics, the unique features of fingerprints, such as singular points (e.g., delta and loop) at the global level, minute details of local ridge characteristics at the local level, and intraridge details (e.g., sweat pores) at the fine level, are the key information that requires high-resolution imaging devices. − Since fingerprints are acquired by scanning the uneven and curvilinear surfaces of the fingertip, a flexible imager that can seamlessly contact the fingertip is highly desired. Recently, a flexible fingerprint imager was demonstrated by using MHP photodiodes and an amorphous IGZO transistor backplane via solution-processing methods (Figure E) .…”

Section: Representative Human-centric Applications Of Flexible and St...mentioning

confidence: 99%

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Chang,

Koo,

Yoo

et al. 2024

Chem. Rev.

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Optoelectronic devices with unconventional form factors, such as flexible and stretchable light-emitting or photoresponsive devices, are core elements for the nextgeneration human-centric optoelectronics. For instance, these deformable devices can be utilized as closely fitted wearable sensors to acquire precise biosignals that are subsequently uploaded to the cloud for immediate examination and diagnosis, and also can be used for vision systems for human-interactive robotics. Their inception was propelled by breakthroughs in novel optoelectronic material technologies and device blueprinting methodologies, endowing flexibility and mechanical resilience to conventional rigid optoelectronic devices. This paper reviews the advancements in such soft optoelectronic device technologies, honing in on various materials, manufacturing techniques, and device design strategies. We will first highlight the general approaches for flexible and stretchable device fabrication, including the appropriate material selection for the substrate, electrodes, and insulation layers. We will then focus on the materials for flexible and stretchable lightemitting diodes, their device integration strategies, and representative application examples. Next, we will move on to the materials for flexible and stretchable photodetectors, highlighting the state-of-the-art materials and device fabrication methods, followed by their representative application examples. At the end, a brief summary will be given, and the potential challenges for further development of functional devices will be discussed as a conclusion.

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Section: Representative Human-centric Applications Of Flexible and St...mentioning

confidence: 99%

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Chang,

Koo,

Yoo

et al. 2024

Chem. Rev.

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“…Next, we explored the use of LFP-Red and LFP-Yellow for revealing the details of LFPs since the fingerprint features are generally classified into three levels. 14,53 High contrast and resolution LFPs with clear fluorescent pattern of the morphological information including the overall orientation, pattern type, and focal points of the print whorl on the substrates could be revealed by removing the color of the substrate using ImageJ software (Figures 3C and S25 and S26), indicating clear level 1 detail of the visualized fingerprints. Interestingly, the LFP-Red treated LFPs were of better quality than the LFP-Yellow treated LFPs on all the substrates (Figures S15, S16, S25 and S26).…”

Section: Visualization Of Lfps and Mechanism Explorationmentioning

confidence: 99%

De Novo Green Fluorescent Protein Chromophore-Based Probes for Capturing Latent Fingerprints Using a Portable System

Ruan,

Qiu,

Wei

et al. 2024

J. Am. Chem. Soc.

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Rapid visualization of latent fingerprints, preferably at their point of origin, is essential for effective crime scene evaluation. Here, we present a new class of green fluorescent protein chromophore-based fluorescent dyes (LFP-Yellow and LFP-Red) that can be used for real-time visualization of LFPs within 10 s. Compared with traditional chemical reagents for LFPs, these fluorescent dyes are completely water-soluble, exhibit low cytotoxicity, and are harmless to users. Level 1−3 details of the LFPs could be clearly revealed through "off−on" fluorescence signal readout. Additionally, the fluorescent dyes were constructed based on an imidazolinone core and so do not contain pyridine groups or metal ions, which ensures that the DNA is not contaminated during extraction and identification after the LFPs are treated with the dyes. Combined with our as-developed portable system for capturing LFPs, LFP-Yellow and LFP-Red enabled the rapid capture of LFPs. Therefore, these green fluorescent protein chromophore-based probes provide an approach for the rapid identification of individuals who were present at a crime scene.

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Finger-Knuckle Assisted Slap Fingerprint Identification System for Higher Security and Convenience

Zhou,

Kumar

2024

IEEE Trans.Inform.Forensic Secur.

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Fingerprint Analysis and Representation

Cited by 4 publications

References 285 publications

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

De Novo Green Fluorescent Protein Chromophore-Based Probes for Capturing Latent Fingerprints Using a Portable System

Finger-Knuckle Assisted Slap Fingerprint Identification System for Higher Security and Convenience

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