scholarly journals Distributed Tracking System for Patients with Cognitive Impairments

2011 ◽  
pp. 49-56 ◽  
Author(s):  
Xabier Laiseca ◽  
Eduardo Castillejo ◽  
Pablo Orduña ◽  
Aitor Gómez-Goiri ◽  
Diego López-de-Ipiña ◽  
...  
Keyword(s):  
Tracking System ◽  
Cognitive Impairments ◽  
Distributed Tracking

scholarly journals An Adaptive Density-Based Fuzzy Clustering Track Association for Distributed Tracking System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 135972-135981
Author(s):  
Mousa Nazari ◽  
Saeid Pashazadeh ◽  
Leyli Mohammad-Khanli
Keyword(s):  
Fuzzy Clustering ◽  
Tracking System ◽  
Track Association ◽  
Distributed Tracking

scholarly journals Distributed Target Tracking in Challenging Environments Using Multiple Asynchronous Bearing-Only Sensors

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2671
Author(s):  
Yifang Shi ◽  
Jee Woong Choi ◽  
Lei Xu ◽  
Hyung June Kim ◽  
Ihsan Ullah ◽  
...  
Keyword(s):  
Measurement Accuracy ◽  
Tracking System ◽  
Sampling Interval ◽  
Fusion Center ◽  
Forward Prediction ◽  
Distributed Target ◽  
Calculated Probability ◽  
Track Management ◽  
Internal Processing ◽  
Distributed Tracking

In the multiple asynchronous bearing-only (BO) sensors tracking system, there usually exist two main challenges: (1) the presence of clutter measurements and the target misdetection due to imperfect sensing; (2) the out-of-sequence (OOS) arrival of locally transmitted information due to diverse sensor sampling interval or internal processing time or uncertain communication delay. This paper simultaneously addresses the two problems by proposing a novel distributed tracking architecture consisting of the local tracking and central fusion. To get rid of the kinematic state unobservability problem in local tracking for a single BO sensor scenario, we propose a novel local integrated probabilistic data association (LIPDA) method for target measurement state tracking. The proposed approach enables eliminating most of the clutter measurement disturbance with increased target measurement accuracy. In the central tracking, the fusion center uses the proposed distributed IPDA-forward prediction fusion and decorrelation (DIPDA-FPFD) approach to sequentially fuse the OOS information transmitted by each BO sensor. The track management is carried out at local sensor level and also at the fusion center by using the recursively calculated probability of target existence as a track quality measure. The efficiency of the proposed methodology was validated by intensive numerical experiments.

Case Studies for Telepractice in AAC

2014 ◽  
Vol 23 (1) ◽  
pp. 42-54 ◽  
Author(s):  
Tanya Rose Curtis
Keyword(s):  
Service Delivery ◽  
Case Studies ◽  
Eye Gaze ◽  
Cognitive Impairments ◽  
Perceived Barriers ◽  
Computer Experience ◽  
Access Methods ◽  
Complex Communication Needs ◽  
Barriers To Service ◽  
Communication Needs

As the field of telepractice grows, perceived barriers to service delivery must be anticipated and addressed in order to provide appropriate service delivery to individuals who will benefit from this model. When applying telepractice to the field of AAC, additional barriers are encountered when clients with complex communication needs are unable to speak, often present with severe quadriplegia and are unable to position themselves or access the computer independently, and/or may have cognitive impairments and limited computer experience. Some access methods, such as eye gaze, can also present technological challenges in the telepractice environment. These barriers can be overcome, and telepractice is not only practical and effective, but often a preferred means of service delivery for persons with complex communication needs.

An eye tracking system for analysis of pilots' scan paths.

1997 ◽  
Author(s):  
Paul A. Wetzel ◽  
Gretchen Krueger-Anderson ◽  
Christine Poprik ◽  
Peter Bascom
Keyword(s):  
Eye Tracking ◽  
Tracking System ◽  
Scan Paths

Taped-Problems Intervention: Improving Math Fluency of Students With Cognitive Impairments

2008 ◽  
Author(s):  
Elizabeth McCallum ◽  
Ara J. Schmitt ◽  
Dana Keener ◽  
Kathleen Dingus ◽  
Jody Vergari
Keyword(s):  
Cognitive Impairments ◽  
Math Fluency ◽  
Taped Problems
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