Results 11 to 20 of about 119,349 (193)

DETECÇÃO DE MOVIMENTOS EM IMAGENS DE CÂMERAS DE VÍDEO

open access: yesColloquium Exactarum, 2015
This paper presents an automatic classification of motion system in images generated by video camera. Initially is detected the contour of people in video using saliency map, binarization filters and edge detection filter methods; then, the bounding ...
Richard Hiroki Nishizima   +5 more
doaj   +1 more source

RECONHECIMENTO FACIAL EM IMAGENS CAPTURADAS POR CÂMERAS DIGITAIS DE REDE

open access: yesColloquium Exactarum, 2015
Este trabalho apresenta um estudo e um protótipo para o reconhecimento facial humano utilizando imagens capturadas por câmeras de segurança IP. A metodologia do trabalho faz uso dos recursos fornecidos pela biblioteca OpenCV em conjunto com a biblioteca ...
Rogério Kazuhiro Okabe   +1 more
doaj   +5 more sources

MEDIUM-FORMAT CAMERAS AND THEIR USE IN TOPOGRAPHIC MAPPING [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Based on practical experiences with large-format aerial cameras the impact of new medium-format digital cameras on topographic mapping tasks is discussed.
J. Höhle
doaj   +1 more source

Evaluation of Low-Cost Smartphone-Based Infrared Cameras to Assess the Cooling and Refrigerated Storage Temperatures of Fresh Produce

open access: yesFoods, 2022
Populations of pathogens may increase in fresh produce when subjected to temperature abuse. Smartphone-based infrared (SBIR) cameras are potential alternatives for temperature measurements of fresh produce during postharvest handling and storage.
Boran Yang   +2 more
doaj   +1 more source

Student Camera Use in Synchronous Classrooms: A Two-Study Exploration of CTML’s Embodiment Principle

open access: yesJournal of Communication Pedagogy, 2023
Two studies were conducted to ascertain whether or not the embodiment principle of the Cognitive Theory of Multimedia Learning would apply to student’s use of cameras in synchronous online instruction. Results from a cross sectional dataset indicate that
Zac D. Johnson, Kevin C. Knoster
doaj   +1 more source

Photography in dentistry [PDF]

open access: yesStomatološki glasnik Srbije, 2006
Photography offers precious support in all areas of medicine and dentistry. Usage of photography in dentistry is an integral part of numerous diagnostic and therapeutic procedures and an important document of progression and outcome of subscribed therapy.
Gavrilov Dragan   +1 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Affordable mobile microfluidic diagnostics: minimum requirements for smartphones and digital imaging for colorimetric and fluorometric anti-dengue and anti-SARS-CoV-2 antibody detection [version 1; peer review: 2 approved]

open access: yesWellcome Open Research, 2021
Background: Miniaturised bioassays permit diagnostic testing near the patient, and the results can be recorded digitally using inexpensive cameras including smartphone and mobile phone cameras.
Sophie M. Jégouic   +2 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Calibração geométrica de câmeras, aplicando o método dos mínimos quadrados

open access: yesActa Scientiarum: Technology, 1998
Para tornar possível a visão artificial, ou visão computacional, é necessário resolver uma série de problemas de razoável complexidade. O primeiro problema a ser resolvido é a calibração das câmeras que serão utilizadas pelo sistema de visão artificial ...
Airton Marco Polidorio   +2 more
doaj   +1 more source

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