Results 31 to 40 of about 35,773 (251)

Morphological snakes

open access: yes2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2010
We introduce a morphological approach to curve evolution. The differential operators used in the standard PDE snake models can be approached using morphological operations on a binary level set. By combining the morphological operators associated to the PDE components we achieve a new snakes evolution algorithm.
Luis Álvarez 0001   +3 more
openaire   +3 more sources

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

open access: yesAdvanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith   +6 more
wiley   +1 more source

Efficacy of an Online Native Snake Identification Search Engine for Public Use

open access: yesHuman-Wildlife Interactions, 2019
Visual methods of species identification are used both in research and recreational contexts because they are inexpensive, non-invasive, and believed to be effective among uniquely identifiable individuals.
Scott E. Henke   +4 more
doaj   +1 more source

Active contours based on weighted gradient vector flow and balloon forces for medical image segmentation [PDF]

open access: yes, 2014
Active contours, or snakes, have been widely used for image segmentation purposes. However, high noise sensitivity and poor performance over weak edges are the most acute issues that hinder the segmentation accuracy of these curves, particularly in ...
Victor Sanchez   +5 more
core   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Reptarenaviruses in Wild- and Captive-Origin Boid and Pythonid Snakes in Peru

open access: yesAnimals
Viral pathogens represent an increasing threat to wildlife health and biodiversity. Most studies of reptile viruses are in captive populations, while knowledge of viral occurrence and diversity in free-ranging reptiles is limited.
Jose Antonio Otero Soberon   +5 more
doaj   +1 more source

Origami‐Inspired Morphing Fuselage for Agile Fixed‐Wing Flight

open access: yesAdvanced Robotics Research, EarlyView.
Conventional aircraft steer with rigid control surfaces. SoAR instead replaces the fuselage itself with a cable‐driven origami continuum body that bends in 3D and compresses on demand. Whole‐fuselage morphing steers fixed‐wing flight: achieving sharp, near‐zero‐radius turns and rapid braking without ailerons, rudder, or elevator, while the same ...
Abudula Aihaitijiang, Cagdas D. Onal
wiley   +1 more source

The Road to Redemption: Killing Snakes in Medieval Chinese Buddhism

open access: yesReligions, 2019
In the medieval Chinese context, snakes and tigers were viewed as two dominant, threatening animals in swamps and mountains. The animal-human confrontation increased with the expansion of human communities to the wilderness.
Huaiyu Chen
doaj   +1 more source

Advanced Flexible Robotic Systems for the Early Diagnosis and Treatment of Cancer and Cardiovascular Diseases

open access: yesAdvanced Robotics Research, EarlyView.
Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong   +14 more
wiley   +1 more source

Paramyxoviruses in Australian snakes [PDF]

open access: yes, 2012
This thesis describes the isolation and molecular identification of a novel paramyxovirus found in Australian snakes. The virus is named Sunshine virus after the geographical origin of the first isolate: the Sunshine Coast of Queensland, Australia.
Hyndman, Timothy
core  

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