Smartphone based multispectral imager and its potential for point-of-care testing

Ding, Hui; Chen, Chen; Zhao, Haicheng; Yue, Ying; Han, Chunyang

doi:10.1039/c9an00853e

Cited by 13 publications

(14 citation statements)

References 18 publications

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“…An interesting feature of the device is that it diminishes the noise generated from movement during imaging such as breathing or patient movement by recording spectral image cubes in a single exposure. In a similar manner to Ding et al, 24 Uthoff et al 25 scales. The authors also compared the assessment of hand eczema severity using multispectral imaging to assessment of hand eczema severity by a dermatologist.…”

Section: Multispectral Imagingmentioning

confidence: 69%

“…Further, although the sixth patient did not have histological analysis, the multispectral photoacoustic imaging was able to visualize a suspected metastatic mel- Another developing area of research with multispectral imaging involves integration with smartphones. Ding et al 24 and Uthoff et al 25 have done such integration to allow for skin chromophobe analysis using smartphones. Ding et al 24 added a lens, polarizer and multispectral imaging chip to the camera of a smartphone to allow for multispectral images to be taken with subsequent detection of melanin and haemoglobin.…”

Section: Multispectral Imagingmentioning

confidence: 99%

“…Ding et al 24 and Uthoff et al 25 have done such integration to allow for skin chromophobe analysis using smartphones. Ding et al 24 added a lens, polarizer and multispectral imaging chip to the camera of a smartphone to allow for multispectral images to be taken with subsequent detection of melanin and haemoglobin. An interesting feature of the device is that it diminishes the noise generated from movement during imaging such as breathing or patient movement by recording spectral image cubes in a single exposure.…”

Section: Applications In Dermatology Literature Reviewmentioning

confidence: 99%

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Applications of Multispectral and Hyperspectral Imaging in Dermatology

Aggarwal

Papay

2022

Experimental Dermatology

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Vision is essential in the diagnostic capabilities in the speciality of dermatology. However, humans are limited in colour vision by the trichromatic visual system that we possess. Multispectral and hyperspectral imaging can overcome this limitation and non‐invasively provide novel information about a skin lesion at the cellular level. A literature review from January 2019 to March 2021 for hyperspectral and multispectral imaging in the field of dermatology was conducted. Multispectral/Hyperspectral imaging continues to generate significant research and interest in dermatology. Much of this research is on distinguishing melanoma from benign nevi as this could allow for a diagnosis without biopsy. In addition, adding multispectral/hyperspectral imaging to smartphones is being researched in order to create a portable and low‐cost device that can be used in remote areas. One of the limitations in developing devices utilizing hyperspectral imaging has been a sacrifice in specificity in order to maximize sensitivity. Potential solutions to combat this that are being researched include combining multispectral/hyperspectral imaging with other imaging modalities such as photoacoustic imaging in order to overcome the limitations of using each individually. Multispectral/Hyperspectral imaging could be an instrumental aid for clinicians in examining, diagnosing and developing the management plan for patient's skin lesions.

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Section: Multispectral Imagingmentioning

confidence: 69%

Section: Multispectral Imagingmentioning

confidence: 99%

Section: Applications In Dermatology Literature Reviewmentioning

confidence: 99%

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Applications of Multispectral and Hyperspectral Imaging in Dermatology

Aggarwal

Papay

2022

Experimental Dermatology

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“…The authors validated the performance of their system using tests for mumps, measles, HSV‐1, HSV‐2 and achieved an accuracy of 99.6%, 98.6%, 99.4%, and 99.4%, respectively. Ding et al developed a smartphone‐based multispectral imager with an optical resolution of 100 µm and demonstrated its performance by noninvasively carrying out nevus lesion diagnosis and dental plaque detection . The housing for the multispectral imaging chip and the optical components was 3D printed and attached to the smartphone.…”

Section: Four System Architectures Of Biosensors For Personal Mhealthmentioning

confidence: 99%

Biosensors for Personal Mobile Health: A System Architecture Perspective

Arumugam

Colburn

Sia

2019

Adv Materials Technologies

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Advances in mobile biosensors, integrating developments in materials science and instrumentation, are fueling an expansion in health data being collected and analyzed in decentralized settings. For example, semiconductor‐based sensors are enabling measurement of vital signs, and microfluidic‐based sensors are enabling measurement of biochemical markers. As biosensors for mobile health are becoming increasingly paired with smart devices, it can become critical for researchers to design biosensors—with appropriate functionalities and specifications—to work seamlessly with accompanying connected hardware and software. Here, recent research in biosensors, as well as current mobile health devices in use is described and classified into four distinct system architectures that take into account the biosensing and data processing functions required in personal mobile health devices. The path forward for integrating biosensors into smartphone‐based mobile health devices is also discussed.

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“…Furthermore, the increased processing power and the high-resolution camera systems often associated with these low-cost devices provides substantial opportunities to develop state-of-the-art optical sensing technologies at a fraction of the cost of currently available systems without compromising on the data quality captured. To date, smartphone technologies have been utilised in a variety of devices such as smartphone spectrometers [3][4][5] and multispectral sensors [6][7][8]. These devices have been implemented in a wide variety of settings, from point-of-care analysis to environmental monitoring applications.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Hyperspectral Imaging with A Smartphone

et al. 2021

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Recent advances in smartphone technologies have opened the door to the development of accessible, highly portable sensing tools capable of accurate and reliable data collection in a range of environmental settings. In this article, we introduce a low-cost smartphone-based hyperspectral imaging system that can convert a standard smartphone camera into a visible wavelength hyperspectral sensor for ca. £100. To the best of our knowledge, this represents the first smartphone capable of hyperspectral data collection without the need for extensive post processing. The Hyperspectral Smartphone’s abilities are tested in a variety of environmental applications and its capabilities directly compared to the laboratory-based analogue from our previous research, as well as the wider existing literature. The Hyperspectral Smartphone is capable of accurate, laboratory- and field-based hyperspectral data collection, demonstrating the significant promise of both this device and smartphone-based hyperspectral imaging as a whole.

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Smartphone based multispectral imager and its potential for point-of-care testing

Abstract: A smartphone multispectral imager, containing a bio-inspired MSI chip, is designed and used to analyze skin lesions and dental plaque.

Cited by 13 publications

References 18 publications

Applications of Multispectral and Hyperspectral Imaging in Dermatology

Applications of Multispectral and Hyperspectral Imaging in Dermatology

Biosensors for Personal Mobile Health: A System Architecture Perspective

Low-Cost Hyperspectral Imaging with A Smartphone

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