Evidence map›Paper›PMID 27446683›Full record

ArticleBiomedical optics express2016

Influence of polarization filtration on the information readout from pulsating blood vessels.

Igor S Sidorov, Maxim A Volynsky, Alexei A Kamshilin

Open access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.8field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 35 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Igor S SidorovDepartment of Computer Photonics and Videomatics, ITMO University, St. Petersburg, 197101, Russia.
Maxim A VolynskyDepartment of Computer Photonics and Videomatics, ITMO University, St. Petersburg, 197101, Russia.
Alexei A KamshilinDepartment of Computer Photonics and Videomatics, ITMO University, St. Petersburg, 197101, Russia.
ITMO University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Imaging photoplethysmography (IPPG) is a recently developed technique for noncontact assessment of cardiovascular function. However, its wide use is limited by low signal-to-noise ratio due to motion artifacts. The aim of this work is to estimate the polarization-filtration impact on discriminating artifacts in IPPG measurements. Experiments were carried out in-vivo by almost simultaneous illumination of subject's palm with polarized and non-polarized light during video recording of 41 subjects. It was found that the light-polarization filtration efficiently reduces motion artifacts compared to the non-polarized illumination while the pulsation amplitude measured at the heartbeat frequency remains unaffected. The polarization filtration improves reliability of IPPG system in non-contact monitoring of subject's heart rate and its variability.

Indexed as

(170.0170) Medical optics and biotechnology(170.3660) Light propagation in tissues(170.3880) Medical and biological imaging(280.0280) Remote sensing and sensors

Identifiers

PMID27446683
PMCPMC4948607
OpenAlexW2417033882

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.