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Analysis of institutional authors

Mazher, MoonaAuthor

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January 17, 2022
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Assessment of physiological states from contactless face video: a sparse representation approach

Publicated to: Computing. 105 (4): 761-781 - 2023-04-01 105(4), DOI: 10.1007/s00607-021-01028-3

Authors:

Qayyum, A; Mazher, M; Nuhu, A; Benzinou, A; Malik, AS; Razzak, I
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Affiliations

Deakin Univ, Sch Informat Technol, Geelong, Vic, Australia - Author
ENIB, UMR CNRS 6285 LabSTICC, F-29238 Brest, France - Author
Univ Bourgogne, Dijon, France - Author
Univ Jos, Dept Elect & Elect Engn, Jos, Nigeria - Author
Univ Rovira & Virgili, DEIM, Tarragona, Spain - Author
Univ Teknol Petronas, Ctr Intelligent Signal & Imaging Res CISIR, Dept Elect & Elect Engn, Seri Iskandar, Perak, Malaysia - Author
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Abstract

The vital signs are estimated from remote photoplethysmography (rPPG) using the sparse representation signal reconstruction approach. The rPPG signal is used to estimate the physical parameters with the help of a non-invasive smartphone camera. This paper presents a health monitoring method by estimating vital signs using an RGB video camera and uses a pre-specified dictionary based on a hybrid discrete ridgelet transform with a Ricker wavelet basis function, to reconstruct a sparse signal prone to less error. The physical parameters such as heart rate (HR), breathing rate (BR), heart rate variability (HRV), and SpO2 are estimated using a smartphone video camera with the proposed sparse signal reconstruction technique. The inter-beat intervals (IBIs) are used to extract the power ratio in the frequency domain. Changes in HRV are more discriminative indicators of cognitive stress than those in HR and BR. The physiological states such as stress and fatigue could be measured using IBIs ratio in the frequency domain. The morning and evening dataset sessions are recruited for this experiment to check the stress and fatigue factors based on the power ratio extracted from the IBI signal. In the results, a lower mean absolute probability error value shows that the proposed method produces better results than state-of-the-art methods.
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Keywords

FatigueHealth monitoringHeart-rateNoncontactOrthogonal matching pursuitPhysiologicalSparse representation

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal COMPUTING due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Numerical Analysis.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 2.17. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-02, the following number of citations:

  • WoS: 10
  • Scopus: 7
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-02:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 16.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 16 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

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    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: Australia; France; Malaysia; Niger; Nigeria.

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