Dataset Information

Outdoor Target Positioning Using Wii Remote IR Camera and Signal Modulation.

ABSTRACT: This paper investigates the use of the Wii remote IR (infrared) camera for outdoor target positioning. The Wii remote IR camera is widely used in various applications because of its capability of detection of up to four IR light sources with a fast frame rate (100 Hz) and a relatively low price. However, previous applications are limited to indoor uses due to the obvious reason of sunlight interference for outdoor applications. In this paper, a signal modulation technique is introduced, which enables the IR camera to look for a particular pattern encoded in an IR beacon. In this way, the IR camera can distinguish the IR beacon from the sunlight interference. The irradiance of the sunlight reflection is also analyzed to guarantee that the IR camera can detect the IR beacon even under extremely sunny weather conditions. As the Wii remote IR camera sensor is overloaded under an extremely bright condition that blocks the camera to see any light sources, we propose the use of a filter to dim the camera. Experimental results for outdoor tests are provided to validate the proposed methods.

SUBMITTER: Lin M

PROVIDER: S-EPMC7218719 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Outdoor Target Positioning Using Wii Remote IR Camera and Signal Modulation.

Lin Michael M Lee Kooktae K

Sensors (Basel, Switzerland) 20200411 8

This paper investigates the use of the Wii remote IR (infrared) camera for outdoor target positioning. The Wii remote IR camera is widely used in various applications because of its capability of detection of up to four IR light sources with a fast frame rate (100 Hz) and a relatively low price. However, previous applications are limited to indoor uses due to the obvious reason of sunlight interference for outdoor applications. In this paper, a signal modulation technique is introduced, which en ...[more]

PMID: 32290363

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Project description:Telemedicine techniques can be used to address the rural-metropolitan disparity in acute stroke care. The Stroke Team Remote Evaluation Using a Digital Observation Camera (STRokE DOC) trial reported more accurate decision making for telemedicine consultations compared with telephone-only and that the California-based research network facilitated a high rate of thrombolysis use, improved data collection, low risk of complications, low technical complications, and favorable assessment times. The main objective of the STRokE DOC Arizona TIME (The Initial Mayo Clinic Experience) trial was to determine the feasibility of establishing, de novo, a single-hub, multirural spoke hospital telestroke research network across a large geographical area in Arizona by replicating the STRokE DOC protocol.Methods included prospective, single-hub, 2-spoke, randomized, blinded, controlled trial of a 2-way, site-independent, audiovisual telemedicine system designed for remote examination of adult patients with acute stroke versus telephone consultation to assess eligibility for treatment with intravenous thrombolysis. The primary outcome measure was whether the decision to give thrombolysis was correct. Secondary outcomes were rate of thrombolytic use, 90-day functional outcomes, incidence of intracerebral hemorrhages, and technical observations.From December 2007 to October 2008, 54 patients were assessed, 27 of whom were randomized to each arm. Mean National Institutes of Health Stroke Scale score at presentation was 7.3 (SD 6.2) points. No consultations were aborted; however, technical problems (74%) were prevalent in the telemedicine arm. Overall, the correct treatment decision was established in 87% of the consultations. Both modalities, telephone (89% correct) and telemedicine (85% correct), performed well. Intravenous thrombolytic treatment was used in 30% of the telemedicine and telephone consultations. Good functional outcomes at 90 days were not significantly different. There were no statistically significant differences in mortality (4% in telemedicine and 11% in telephone) or rates of intracerebral hemorrhage (4% in telemedicine and 0% in telephone).It is feasible to extend the original STRokE DOC trial protocol to a new state and establish an operational single-hub, multispoke rural hospital telestroke research network in Arizona. The trial was not designed to have sufficient power to detect a difference between the 2 consultative modes: telemedicine and telephone-only. Whether by telemedicine or telephone consultative modalities, there were appropriate treatment decisions, high rates of thrombolysis use, improved data collection, low rates of intracerebral hemorrhage, and equally favorable time requirements. The learning curve was steep for the hub and spoke personnel of the new telestroke network, as reflected by frequent technical problems. Overall, the results support the effectiveness of highly organized and structured stroke telemedicine networks for extending expert stroke care into rural remote communities lacking sufficient neurological expertise.

Dataset Information

Outdoor Target Positioning Using Wii Remote IR Camera and Signal Modulation.

Publications

Outdoor Target Positioning Using Wii Remote IR Camera and Signal Modulation.

Similar Datasets

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