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Publication Detail
Smartphone colorimetry using ambient subtraction: Application to neonatal jaundice screening in Ghana
  • Publication Type:
    Conference
  • Authors:
    Outlaw F, Nixon M, Brako NO, MacDonald LW, Meek J, Enweronu-Laryea C, Leung TS
  • Publisher:
    ACM
  • Publication date:
    13/09/2019
  • Pagination:
    172, 175
  • Published proceedings:
    UbiComp/ISWC 2019- - Adjunct Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers
  • ISBN-13:
    9781450368698
  • Status:
    Published
  • Name of conference:
    UbiComp/ISWC '19 Adjunct Adjunct Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers
  • Conference place:
    London, UK
  • Conference start date:
    09/09/2019
  • Conference finish date:
    13/09/2019
Abstract
© 2019 Copyright held by the owner/author(s). A smartphone app to screen for neonatal jaundice has a large potential impact in reducing neonatal death and disability. Our app, neoSCB, uses a colour measurement of the sclera to make a screening decision. Although there are numerous benefits of a smartphone-based approach, smartphone colour measurement that is accurate and repeatable is a challenge. Using data from a clinical setting in Ghana, we compare sclera colour measurement using an ambient subtraction method to sclera colour measurement using a standard colour card method, and find they are comparable provided the subtracted signal-to-noise ratio (SSNR) is sufficient. Calculating a screening decision metric via the colour card method gave 100% sensitivity and 69% specificity (n=87), while applying the ambient subtraction method gave 100% sensitivity and 78% specificity (SSNR>3.5; n=50).
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