Results 21 to 30 of about 28,873 (283)

Fast Radial and Bilateral Symmetry Detection Using Inverted Gradient Hash Maps

open access: yesEAI Endorsed Transactions on Context-aware Systems and Applications, 2017
This paper presents a fast and novel algorithm for both radial and bilateral symmetry detection based on inverted gradient hash maps (IGHMs). A hash map is an associative array that stores image gradient magnitudes and orientations in the form of an ...
R. Gonzalez, L. Lincoln
doaj   +2 more sources

Bilateral symmetry detection on the basis of Scale Invariant Feature Transform. [PDF]

open access: yesPLoS ONE, 2014
The automatic detection of bilateral symmetry is a challenging task in computer vision and pattern recognition. This paper presents an approach for the detection of bilateral symmetry in digital single object images.
Habib Akbar   +3 more
doaj   +2 more sources

Evaluation of root canal morphology of premolar teeth using cone beam computed tomography: a retrospective study [PDF]

open access: yesBMC Oral Health
Background This study aimed to evaluate the root and canal morphology of maxillary and mandibular premolars using cone-beam computed tomography (CBCT) and to assess bilateral anatomical symmetry between contralateral teeth.
Tuğba Cebeci, Berceste Polat Akmansoy
doaj   +2 more sources

Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia

open access: yesFrontiers in Neurology
IntroductionStroke patients with hemiplegia are at an increased risk of falling during sit-to-stand (Si-St) and stand-to-sit (St-Si) tasks, partly due to impaired bilateral lower limb symmetry.
Dongwei Liu, Ye Ma, Guo Chenyi
exaly   +3 more sources

The effect of increasing heel height on lower limb symmetry during the back squat in trained and novice lifters

open access: yesBMC Sports Science, Medicine and Rehabilitation, 2020
Background Symmetry during lifting is considered critical for allowing balanced power production and avoidance of injury. This investigation assessed the influence of elevating the heels on bilateral lower limb symmetry during loaded (50% of body weight)
Mark G. L. Sayers   +5 more
doaj   +1 more source

Morphological evaluation of mental foramen using cone-beam computed tomography: A retrospective observational study

open access: yesEndodontology, 2023
Aim: This study aimed to assess the shape, size, symmetry, and location of mental foramen (MF) in relation to mandibular dental and skeletal landmarks using cone-beam computed tomography (CBCT).
Amrita Chawla   +4 more
doaj   +1 more source

Application of symmetry evaluation to deep learning algorithm in detection of mastoiditis on mastoid radiographs

open access: yesScientific Reports, 2023
As many human organs exist in pairs or have symmetric appearance and loss of symmetry may indicate pathology, symmetry evaluation on medical images is very important and has been routinely performed in diagnosis of diseases and pretreatment evaluation ...
Dongjun Choi   +4 more
doaj   +1 more source

Aging and Bilateral Symmetry Detection [PDF]

open access: yesThe Journals of Gerontology Series B: Psychological Sciences and Social Sciences, 2002
The salience of bilateral symmetry varies as a function of the orientation of the symmetry axis. Vertical symmetry is most salient, followed by horizontal and then oblique orientations. We tested symmetry detection in different age groups to determine whether performance of this intermediate-level visual task is affected by normal, nonpathological ...
Andrew M. Herbert   +3 more
openaire   +2 more sources

Patterns of Symmetry Expression in Angiosperms: Developmental and Evolutionary Lability

open access: yesFrontiers in Ecology and Evolution, 2020
Variation in flower symmetry is a remarkable aspect of flowering plant diversity. Multiple evolutionary transitions from an ancestral form of radial symmetry to bilateral symmetry and reversals from bilateral to radial symmetry have occurred during ...
Somayeh Naghiloo
doaj   +1 more source

An Investigation of Bilateral Symmetry During Manual Wheelchair Propulsion. [PDF]

open access: yesFront Bioeng Biotechnol, 2015
Studies of manual wheelchair propulsion often assume bilateral symmetry to simplify data collection, processing and analysis. However, the validity of this assumption is unclear.
Soltau SL   +4 more
europepmc   +2 more sources

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