Technical note: Different techniques, different results--a comparison of photogrammetric and caliper-derived measurements

American Journal of Physical Anthropology
D J ShanerO B Beattie

Abstract

The primary goal of our study was to compare photogrammetric measurements with caliper-derived measurements. We also looked at the difference between caliper-derived measurements that were taken with and without the landmarks marked. Thirteen facial measurements were repeated ten times on two adult subjects as follows: 1) Calipers were used to take the measurements before the landmarks were marked on each subject's face; 2) the landmarks were then marked with a black pencil, and the calipers were used to take the measurements again; and 3) images were taken of each subject with the markings left on the face, and the measurements were extracted from these images. Compared with the caliper-derived data taken with the landmarks marked, the photogrammetric means and standard deviations were typically larger, leading us to conclude that there was a systematic difference between the data. The generally greater variation in the photogrammetric measurements was ascribed to poor conditions, such as shadows, oblique markings, and unmarked landmarks. When the data gathered by caliper with and without the landmarks marked were compared, a systematic difference was suggested by the number of statistically significant t-test probabilities. M...Continue Reading

References

May 1, 1991·American Journal of Medical Genetics·J H DiLiberti, D P Olson
Jun 1, 1970·Journal of Medical Genetics·F C Fraser, H Pashayan
Sep 1, 1980·Plastic and Reconstructive Surgery·L G FarkasJ Klotz
Oct 1, 1993·American Journal of Medical Genetics·J E AllansonR C Nair
Oct 2, 1996·American Journal of Medical Genetics·L G Farkas, C K Deutsch
Sep 1, 1952·American Journal of Physical Anthropology·J A GAVANP H LEWIS

❮ Previous
Next ❯

Citations

Nov 23, 2007·Archives of Disease in Childhood
Oct 7, 2004·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Tania S Douglas
Aug 1, 2015·Journal of Pediatric Endocrinology & Metabolism : JPEM·Bas PendersWillem-Jan Gerver
Oct 25, 2016·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Seth M WeinbergMary L Marazita
Jun 3, 2017·American Journal of Physical Anthropology·Chris Robinson, Claire E Terhune
Aug 15, 2001·American Journal of Medical Genetics·D J ShanerJ S Bamforth
Dec 19, 2001·American Journal of Physical Anthropology·Robin J Hennessy, Chris B Stringer
Sep 9, 2004·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Seth M WeinbergMary L Marazita
Jan 12, 2007·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·J Vander PluymJ S Bamforth
Sep 21, 2004·American Journal of Medical Genetics. Part a·Chiarella SforzaVirgilio F Ferrario
Jun 24, 2003·American Journal of Human Biology : the Official Journal of the Human Biology Council·Tania S DouglasDenis L Viljoen
Nov 26, 2009·Plastic and Reconstructive Surgery·Carrie L HeikeJacqueline R Starr
Feb 8, 2003·Medical & Biological Engineering & Computing·T S DouglasD L Viljoen
Nov 6, 2012·Annals of Plastic Surgery·Koji AdachiMitsuru Sekido
Apr 11, 2009·Pró-fono : revista de atualização científica·Débora Martins Cattoni, Fernanda Dreux Miranda Fernandes
Jul 25, 2019·The Journal of Craniofacial Surgery·Denise K LibertonJanice S Lee
May 11, 2006·Annals of Human Biology·Tania S Douglas, Denis L Viljoen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
V F FerrarioA Miani
International Journal of Legal Medicine
Danilo De AngelisCristina Cattaneo
© 2021 Meta ULC. All rights reserved