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https://www.readbyqxmd.com/read/29149686/preliminary-application-of-structure-from-motion-and-gis-to-document-decomposition-and-taphonomic-processes
#1
Connor D Carlton, Samantha Mitchell, Patrick Lewis
Over the past decade, Structure from Motion (SfM) has increasingly been used as a means of digital preservation and for documenting archaeological excavations, architecture, and cultural material. However, few studies have tapped the potential of using SfM to document and analyze taphonomic processes affecting burials for forensic sciences purposes. This project utilizes SfM models to elucidate specific post-depositional events that affected a series of three human cadavers deposited at the South East Texas Applied Forensic Science Facility (STAFS)...
November 2, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29118612/distributional-records-of-antarctic-and-sub-antarctic-ophiuroidea-from-samples-curated-at-the-italian-national-antarctic-museum-mna-check-list-update-of-the-group-in-the-terra-nova-bay-area-ross-sea-and-launch-of-the-mna-3d-model-virtual-gallery
#2
Matteo Cecchetto, Maria Chiara Alvaro, Claudio Ghiglione, Alice Guzzi, Claudio Mazzoli, Paola Piazza, Stefano Schiaparelli
The distributional records of Ophiuroidea stored at the Italian National Antarctic Museum (MNA, Section of Genoa) are presented, corresponding to 1595 individuals that belong to 35 species and 17 genera. Specimens were collected in 106 different sampling stations at depths ranging from 21 to 1652 m in the framework of 14 Antarctic expeditions to the Ross Sea, one to the Antarctic Peninsula, and one to the Falkland Islands (Islas Malvinas). Three species, Amphiura joubini Koehler, 1912, Amphiura (Amphiura) angularis Lyman, 1879, and Ophiura flexibilis (Koehler, 1911), are reported as new records for the Terra Nova Bay area, whose check-list of species increases from 15 to 18 species...
2017: ZooKeys
https://www.readbyqxmd.com/read/29104316/determination-of-size-sex-and-maturity-stage-of-free-swimming-catsharks-using-laser-photogrammetry
#3
REVIEW
Toby D Rogers, Giulia Cambiè, Michel J Kaiser
The lack of detailed life history (LH) information (e.g. age, growth, size at maturity, sex composition etc.) for many species of conservation importance limits the implementation of appropriate conservation measures. Typically, LH information is acquired using lethal sampling techniques, which undermines the goal of conservation. This is particularly problematic for many shark species that have low fecundity and slow growth rates. Here we tested the use of non-invasive laser photogrammetry to measure body morphometry in vivo...
2017: Marine Biology
https://www.readbyqxmd.com/read/29101908/using-drone-mounted-cameras-for-on-site-body-documentation-3d-mapping-and-active-survey
#4
Petra Urbanová, Mikoláš Jurda, Tomáš Vojtíšek, Jan Krajsa
Recent advances in unmanned aerial technology have substantially lowered the cost associated with aerial imagery. As a result, forensic practitioners are today presented with easy low-cost access to aerial photographs at remote locations. The present paper aims to explore boundaries in which the low-end drone technology can operate as professional crime scene equipment, and to test the prospects of aerial 3D modeling in the forensic context. The study was based on recent forensic cases of falls from height admitted for postmortem examinations...
October 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29093554/the-prevalence-of-double-eyelid-and-the-3d-measurement-of-orbital-soft-tissue-in-malays-and-chinese
#5
Ting Yin Lu, Kathreena Kadir, Wei Cheong Ngeow, Siti Adibah Othman
This study aimed to determine the prevalence of double eyelid among two main Mongoloid ethnicities, the Malays and Chinese who reside in Malaysia. We also measured their periorbital tissue parameters for application in anthropology, optometry, ophthalmology, oculoplastic surgery and maxillofacial trauma surgery. The images of the 103 Malay and 97 Chinese volunteers were captured using indirect 3D photogrammetry, and quantitative measurement was obtained using the software provided by the manufacturer. All Malays and 70...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29092204/superfast-high-resolution-absolute-3d-recovery-of-a-stabilized-flapping-flight-process
#6
Beiwen Li, Song Zhang
Scientific research of a stabilized flapping flight process (e.g. hovering) has been of great interest to a variety of fields including biology, aerodynamics, and bio-inspired robotics. Different from the current passive photogrammetry based methods, the digital fringe projection (DFP) technique has the capability of performing dense superfast (e.g. kHz) 3D topological reconstructions with the projection of defocused binary patterns, yet it is still a challenge to measure a flapping flight process with the presence of rapid flapping wings...
October 30, 2017: Optics Express
https://www.readbyqxmd.com/read/29070893/linking-fishes-to-multiple-metrics-of-coral-reef-structural-complexity-using-three-dimensional-technology
#7
M González-Rivero, A R Harborne, A Herrera-Reveles, Y-M Bozec, A Rogers, A Friedman, A Ganase, O Hoegh-Guldberg
Structural complexity strongly influences biodiversity and ecosystem productivity. On coral reefs, structural complexity is typically measured using a single and small-scale metric ('rugosity') that represents multiple spatial attributes differentially exploited by species, thus limiting a complete understanding of how fish associate with reef structure. We used a novel approach to compare relationships between fishes and previously unavailable components of reef complexity, and contrasted the results against the traditional rugosity index...
October 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29066040/the-value-of-three-dimensional-photogrammetry-in-isolated-sagittal-synostosis-impact-of-age-and-surgical-technique-on-intracranial-volume-and-cephalic-index%C3%A2-a-retrospective-cohort-study
#8
Christian Mertens, Eline Wessel, Moritz Berger, Oliver Ristow, Jürgen Hoffmann, Katinka Kansy, Christian Freudlsperger, Heidrun Bächli, Michael Engel
PURPOSE: The aim of this study was to compare the outcome of intracranial volume (ICV) and cephalic index (CI) between two different techniques for surgical therapy of sagittal synostosis. MATERIAL AND METHODS: Between 2011 and 2015, all patients scheduled for surgical therapy of sagittal synostosis were consecutively enrolled. All patients younger than 6 months underwent early extended strip craniectomy (ESC group), and patients older than 6 months underwent late modified pi-procedure (MPP group)...
September 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29037657/procedures-of-assessment-on-the-quantification-of-thoracic-kyphosis-and-lumbar-lordosis-by-radiography-and-photogrammetry-a-literature-review
#9
Alessandra Beggiato Porto, Victor Hugo Alves Okazaki
The quantification of thoracic kyphosis and lumbar lordosis can be assessed in different ways; among them radiography and photogrammetry. However, the assessment procedures are not consistent in the literature for either method. The objective of this study was to conduct a literature review about postural assessment through radiography and photogrammetry, for delineating the procedures for both methods. In total 38 studies were selected by an online search in the MEDLINE and LILACS databases with the keywords: radiograph and posture, postural alignment, photogrammetry or photometry or biophotogrammetry...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29036930/automatic-hotspot-and-sun-glint-detection-in-uav-multispectral-images
#10
Damian Ortega-Terol, David Hernandez-Lopez, Rocio Ballesteros, Diego Gonzalez-Aguilera
Last advances in sensors, photogrammetry and computer vision have led to high-automation levels of 3D reconstruction processes for generating dense models and multispectral orthoimages from Unmanned Aerial Vehicle (UAV) images. However, these cartographic products are sometimes blurred and degraded due to sun reflection effects which reduce the image contrast and colour fidelity in photogrammetry and the quality of radiometric values in remote sensing applications. This paper proposes an automatic approach for detecting sun reflections problems (hotspot and sun glint) in multispectral images acquired with an Unmanned Aerial Vehicle (UAV), based on a photogrammetric strategy included in a flight planning and control software developed by the authors...
October 15, 2017: Sensors
https://www.readbyqxmd.com/read/29027034/low-intensity-led-therapy-%C3%AE-640%C3%A2-%C3%A2-%C3%A2-20%C3%A2-nm-on-saphenectomy-healing-in-patients-who-underwent-coronary-artery-bypass-graft-a-randomized-double-blind-study
#11
Raimundo de Barros Araújo Júnior, Isabel Clarisse Albuquerque Gonzaga, Gilderlene Alves Fernandes, Andréa Conceição Gomes Lima, Paulo Sergio Tajra Cortelazzi, Rauirys Alencar de Oliveira, Renata Amadei Nicolau
Myocardial revascularization surgery (CABG) is the most appropriate treatment for coronary artery disease. Currently, the great challenge is to reduce postoperative complications, such as wound infections, dehiscence, pain, and patients' quality of life. The saphenectomy is the target of complications in 10% of cases, which can cause greater morbidity, time, and cost of hospitalization. Studies show that low-intensity laser or light-emitted diode (LED) therapy promotes positive biomodulation of the tissue repair process, culminating in a lower incidence of dehiscence, pain reduction, and improvement in quality of life...
October 13, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29026817/comparing-the-use-of-3d-photogrammetry-and-computed-tomography-in-assessing-the-severity-of-single-suture-nonsyndromic-craniosynostosis
#12
Olivia A Ho, Nikoo Saber, Derek Stephens, April Clausen, James Drake, Christopher Forrest, John Phillips
PURPOSE: Single-suture nonsyndromic craniosynostosis is diagnosed using clinical assessment and computed tomography (CT). With increasing awareness of the associated risks of radiation exposure, the use of CT is particularly concerning in patients with craniosynostosis since they are exposed at a younger age and more frequently than the average child. Three-dimensional (3D) photogrammetry is advantageous-it involves no radiation, is conveniently obtainable within clinic, and does not require general anaesthesia...
May 2017: Plastic Surgery
https://www.readbyqxmd.com/read/28967402/a-hemispherical-contact-model-for-simplifying-3d-occlusal-surfaces
#13
Miguel Castro-Garcia, Pedro Ángel Moreno-Cabello, Miguel Ángel Rubio-Paramio, Pilar Carranza-Cañadas, Geoffrey A Thompson
STATEMENT OF PROBLEM: Currently, dental articulators can recreate mandibular movements and occlusal contacts. However, whether virtual articulators can also provide information about occluding dental surfaces, functional movements, and the mandibular condyles is unclear. PURPOSE: The purpose of this in vitro study was to evaluate the occluding surfaces on dental casts obtained from a patient and approximate them to a hemispherical contact model. Both models were tested by digitizing the Dentatus ARL dental articulator...
September 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28946606/uncooled-thermal-camera-calibration-and-optimization-of-the-photogrammetry-process-for-uav-applications-in-agriculture
#14
Krishna Ribeiro-Gomes, David Hernández-López, José F Ortega, Rocío Ballesteros, Tomás Poblete, Miguel A Moreno
The acquisition, processing, and interpretation of thermal images from unmanned aerial vehicles (UAVs) is becoming a useful source of information for agronomic applications because of the higher temporal and spatial resolution of these products compared with those obtained from satellites. However, due to the low load capacity of the UAV they need to mount light, uncooled thermal cameras, where the microbolometer is not stabilized to a constant temperature. This makes the camera precision low for many applications...
September 23, 2017: Sensors
https://www.readbyqxmd.com/read/28941644/interactive-effects-of-vegetation-and-sediment-properties-on-erosion-of-salt-marshes-in-the-northern-adriatic-sea
#15
V B Lo, T J Bouma, J van Belzen, C Van Colen, L Airoldi
We investigated how lateral erosion control, measured by novel photogrammetry techniques, is modified by the presence of Spartina spp. vegetation, sediment grain size, and the nutrient status of salt marshes across 230 km of the Italian Northern Adriatic coastline. Spartina spp. vegetation reduced erosion across our study sites. The effect was more pronounced in sandy soils, where erosion was reduced by 80% compared to 17% in silty soils. Erosion resistance was also enhanced by Spartina spp. root biomass. In the absence of vegetation, erosion resistance was enhanced by silt content, with mean erosion 72% lower in silty vs...
October 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28932014/the-effectiveness-of-physiotherapy-interventions-for-sacroiliac-joint-dysfunction-a-systematic-review
#16
REVIEW
Moayad Al-Subahi, Mohamed Alayat, Mansour Abdullah Alshehri, Omar Helal, Hammad Alhasan, Ahmed Alalawi, Abdullah Takrouni, Ali Alfaqeh
[Purpose] The aim of this study is to investigate the effectiveness of physical therapy interventions in the treatment of sacroiliac joint dysfunction (SIJD). [Subjects and Methods] MEDLINE, PUBMED, CINAHL, AMED, PEDro, and CIRRIE databases were searched and only relevant data from studies that matched the inclusion criteria were included. CASP tools for critical appraisal were used to assess the quality of studies included. [Results] Nine articles met the inclusion criteria, of which, three examined the effect of exercise on SIJD, three used kinesio tape and four studies examined the effect of manipulation...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28919165/validation-of-the-vectra-h1-portable-three-dimensional-photogrammetry-system-for-facial-imaging
#17
L Camison, M Bykowski, W W Lee, J C Carlson, J Roosenboom, J A Goldstein, J E Losee, S M Weinberg
Three-dimensional (3D) surface imaging using stereophotogrammetry has become increasingly popular in clinical settings, offering advantages for surgical planning and outcome evaluation. The handheld Vectra H1 is a low-cost, highly portable system that offers several advantages over larger stationary cameras, but independent technical validation is currently lacking. In this study, 3D facial images of 26 adult participants were captured with the Vectra H1 system and the previously validated 3dMDface system. Using error magnitude statistics, 136 linear distances were compared between cameras...
September 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28916930/tongue-image-analysis-and-its-mobile-app-development-for-health-diagnosis
#18
Ratchadaporn Kanawong, Tayo Obafemi-Ajayi, Dahai Liu, Meng Zhang, Dong Xu, Ye Duan
Computer-aided diagnosis provides a medical procedure that assists physicians in interpretation of medical images. This work focuses on computer-aided tongue image analysis specifically, based on Traditional Chinese Medicine (TCM). Tongue diagnosis is an important component of TCM. Computerized tongue diagnosis can aid medical practitioners in capturing quantitative features to improve reliability and consistency of diagnosis. Recently, researchers have started to develop computer-aided tongue analysis algorithms based on new advancement in digital photogrammetry, image analysis, and pattern recognition technologies...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28902322/evaluation-of-body-posture-in-nursing-students
#19
Marília Fernandes Andrade, Érika de Cássia Lopes Chaves, Michele Rita Oliveira Miguel, Talita Prado Simão, Denismar Alves Nogueira, Denise Hollanda Iunes
OBJECTIVE: To investigate the body posture of nursing students before and after clinical practice. METHOD: The study was developed in two stages. Initially the body posture of students of the 2nd, 4th, 6th, and 8th periods were assessed through photogrammetry. All images were analyzed in a random and masked manner with CorporisPro® 3.1.3 software. Three evaluations were performed for each angle and then the mean value was calculated. Two years later, when the 4th period students had developed their clinical internships, their body posture was again evaluated...
August 28, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28891946/self-calibrated-in-process-photogrammetry-for-large-raw-part-measurement-and-alignment-before-machining
#20
Alberto Mendikute, José A Yagüe-Fabra, Mikel Zatarain, Álvaro Bertelsen, Ibai Leizea
Photogrammetry methods are being used more and more as a 3D technique for large scale metrology applications in industry. Optical targets are placed on an object and images are taken around it, where measuring traceability is provided by precise off-process pre-calibrated digital cameras and scale bars. According to the 2D target image coordinates, target 3D coordinates and camera views are jointly computed. One of the applications of photogrammetry is the measurement of raw part surfaces prior to its machining...
September 9, 2017: Sensors
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