NCT Number: NCT00920231
This is a feasibility study involving a small number of blind subject to evaluate the effectiveness of using a software and associated hardware components to assist the blind in identifying and locating objects of interests and to assist in way finding tasks. After the system has been successfully tested by the blindfolded engineers, it will be evaluated in a small number of blind subjects.
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Notify Me18 year–80 year
All sexes
Interventional
Phase 1
Atlanta VA Medical and Rehab Center, Decatur, Decatur, Georgia, United States
This is primarily an engineering project to develop computer vision algorithms for an integrated system comprising of a laptop computer, webcam, gps, digital compass, microphone, and stereo earphones. The system will be voice controlled. The algorithm will be trained to identify and located objects and navigationally landmarks in real-time, previously selected by sighted developers. After the system has passed objective engineering milestones, blind subjects will be tested to determine whether the novel system will improve the ability of the blind to travel over a test course in a hospital setting.
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
The computer vision system is used to assist blind subject to navigate an extended path with multiple turns within a hospital setting.The initial prototype system would have been successfully tested for outdoor navigation and basic object recognition tasks.
The problems associated with the initial system were identified and modified. This modified system was tested with a second separate group of subjects. The redesigned system is used to assist blind subject to navigate the same extended path with multiple turns within a hospital setting.
Time frame: The subject is given as much time as needed to complete the task
device failures were defined as any failure to provide correct location and direction information at thre appropriate time, resulting in a mistake that needed the initial prototype's ability to meet their travel needs at a good to excellent range.
Time frame: no time limit
This is a subjective rating that incorporates user friendliness of the system and the specific needs of the subject. The subject is asked to rate whether the device meets his or her travel needs on a 1 to 7 scale with 1 being excellent and 7 being very poor.
VA Office of Research and Development
Fed
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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