Evidence map›Paper›PMID 30871173›Full record

ArticleNutrients2019

Validation of Sensor-Based Food Intake Detection by Multicamera Video Observation in an Unconstrained Environment.

Muhammad Farooq, Abul Doulah, Jason Parton, Megan A McCrory, Janine A Higgins, Edward Sazonov

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 4 pooled it
6.7field-weighted citation impact, top 3% 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

22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
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  5. Observational
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  15. Observational
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  19. Automatic Count of Bites and Chews From Videos of Eating Episodes.IEEE access : practical innovations, open solutions · 2020
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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

6 authors at 3 institutions in 1 country.

Muhammad FarooqDepartment of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487, USA. mfarooq@crimson.ua.edu.ORCID 0000-0001-5000-0402
Abul DoulahDepartment of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487, USA. adoulah@crimson.ua.edu.
Jason PartonDepartment of Information Systems, Statistics, and Management Sciences, Culverhouse College of Business, University of Alabama, Tuscaloosa, AL 35487, USA. jmparton@cba.ua.edu.
Megan A McCroryDepartment of Health Sciences, Boston University, Boston, MA 02215, USA. mamccr@bu.edu.ORCID 0000-0002-5024-1465
Janine A HigginsDepartment of Pediatrics, University of Colorado Anschutz Medical Campus Denver, Aurora, CO 80045, USA. janine.higgins@childrenscolorado.org.
Edward SazonovDepartment of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487, USA. esazonov@eng.ua.edu.ORCID 0000-0001-7792-4234
University of Alabama · USBoston University · USUniversity of Colorado Anschutz Medical Campus · US

Funding

PILOT STUDY--SUBSTRATE METABOLISM IN EXTREMELY LOW BIRTH WEIGHT INFANTSP30DK048520 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI Wendy M Kohrt · 1995 to 2026
$32.6M
Assessing Food Intake with the Automatic Ingestion MonitorR01DK100796 · NIDDK · UNIVERSITY OF ALABAMA IN TUSCALOOSA · PI MCCRORY, MEGAN A, SAZONOV, EDWARD S · 2014 to 2018
$1.8M
NIDDK NIH HHS R01DK100796
6 · The paper itself

Abstract

Video observations have been widely used for providing ground truth for wearable systems for monitoring food intake in controlled laboratory conditions; however, video observation requires participants be confined to a defined space. The purpose of this analysis was to test an alternative approach for establishing activity types and food intake bouts in a relatively unconstrained environment. The accuracy of a wearable system for assessing food intake was compared with that from video observation, and inter-rater reliability of annotation was also evaluated. Forty participants were enrolled. Multiple participants were simultaneously monitored in a 4-bedroom apartment using six cameras for three days each. Participants could leave the apartment overnight and for short periods of time during the day, during which time monitoring did not take place. A wearable system (Automatic Ingestion Monitor, AIM) was used to detect and monitor participants' food intake at a resolution of 30 s using a neural network classifier. Two different food intake detection models were tested, one trained on the data from an earlier study and the other on current study data using leave-one-out cross validation. Three trained human raters annotated the videos for major activities of daily living including eating, drinking, resting, walking, and talking. They further annotated individual bites and chewing bouts for each food intake bout. Results for inter-rater reliability showed that, for activity annotation, the raters achieved an average (±standard deviation (STD)) kappa value of 0.74 (±0.02) and for food intake annotation the average kappa (Light's kappa) of 0.82 (±0.04). Validity results showed that AIM food intake detection matched human video-annotated food intake with a kappa of 0.77 (±0.10) and 0.78 (±0.12) for activity annotation and for food intake bout annotation, respectively. Results of one-way ANOVA suggest that there are no statistically significant differences among the average eating duration estimated from raters' annotations and AIM predictions (

Indexed as

EatingMonitoring, PhysiologicVideo RecordingActivities of Daily LivingAdultFemaleHumansMaleMasticationReproducibility of ResultsAIMchewing detectiondietary assessmentfood intake detectionneural networksobesitysensor validationvideo annotation

Identifiers

PMID30871173
PMCPMC6472006
OpenAlexW2922115090

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.