Experimental comparison of human gait tracking algorithms: Towards a context-aware mobility assistance robotic walker

2016 ◽  
Author(s):  
Georgia Chalvatzaki ◽  
Xanthi S. Papageorgiou ◽  
Christian Werner ◽  
Klaus Hauer ◽  
Costas S. Tzafestas ◽  
...  
Keyword(s):  
Human Gait ◽  
Experimental Comparison ◽  
Context Aware ◽  
Tracking Algorithms ◽  
Robotic Walker

scholarly journals PUPIL VISUAL TRACKING ALGORITHMS FOR AUTOMATED STATIC PERIMETRY SYSTEMS

2021 ◽  
Vol XLIV-2/W1-2021 ◽  
pp. 195-199
Author(s):  
P. N. Skonnikov ◽  
D. V. Trofimov
Keyword(s):  
Visual Field ◽  
Visual Tracking ◽  
Weighted Average ◽  
Diagnostic Methods ◽  
Experimental Comparison ◽  
Visual Field Defects ◽  
Static Perimetry ◽  
Gaze Fixation ◽  
Tracking Algorithms ◽  
Automated Static Perimetry

Abstract. Some diseases, for instance, a glaucoma, cause visual field defects. For the timely diagnostics of such defects, various methods are used. One of the state-of-the-art diagnostic methods is automated static perimetry. The method of static perimetry consists in the light sensitivity determination in different parts of the visual field using stationary objects of variable luminosity. When scanning the visual field in this way, an important factor is the control of gaze fixation at the fixation point. The greatest accuracy in determining the gaze fixation position is achieved by the method of the pupil visual tracking using a video camera.In this paper, four groups of visual tracking algorithms are considered: segmentation-based methods, correlation methods, methods based on optical flow and on weighted average. An experimental comparison of these methods was carried out using the base of video recordings obtained in the automatic static perimetry apparatus. On these videos the ground truth tracks of pupil were marked. The comparison was conducted according to two criteria: center location error and tracking length. It is shown that only the weighted average method has an acceptable tracking length.

scholarly journals Experimental comparison of tracking algorithms in the presence of aircraft boundary-layer distortions for emulated free-space laser communication links

2008 ◽  
Vol 48 (1) ◽  
pp. A98 ◽  
Author(s):  
Ross A. Conrad ◽  
Robert J. Murphy ◽  
Timothy H. Williams ◽  
William E. Wilcox ◽  
Steven Michael ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Free Space ◽  
Experimental Comparison ◽  
Laser Communication ◽  
Tracking Algorithms ◽  
Communication Links

scholarly journals An experimental comparison of online object-tracking algorithms

2011 ◽  
Author(s):  
Qing Wang ◽  
Feng Chen ◽  
Wenli Xu ◽  
Ming-Hsuan Yang
Keyword(s):  
Object Tracking ◽  
Experimental Comparison ◽  
Tracking Algorithms
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