{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,9]],"date-time":"2024-07-09T09:17:13Z","timestamp":1720516633230},"reference-count":18,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Computational Intelligence and Soft Computing"],"published-print":{"date-parts":[[2013]]},"abstract":"<jats:p>Rudimentary<jats:italic>brain machine interface<\/jats:italic>has existed for the gaming industry. Here, we propose a wireless, real-time, and smartphone-based electroencephalogram (EEG) system for homecare applications. The system uses high-density dry electrodes and compressive sensing strategies to overcome conflicting requirements between spatial electrode density, temporal resolution, and spatiotemporal throughput rate.<jats:italic>Spatial sparseness<\/jats:italic>is addressed by close proximity between active electrodes and desired source locations and using an adaptive selection of<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>N<\/mml:mi><\/mml:mrow><\/mml:math>active among<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:mi>10N<\/mml:mi><\/mml:mrow><\/mml:math>passive electrodes to form<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mrow><mml:mi>m<\/mml:mi><\/mml:mrow><\/mml:math>-organized random linear combinations of readouts,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mi>m<\/mml:mi><mml:mo>\u226a<\/mml:mo><mml:mi>N<\/mml:mi><mml:mo>\u226a<\/mml:mo><mml:mn>10<\/mml:mn><mml:mi>N<\/mml:mi><\/mml:math>.<jats:italic>Temporal sparseness<\/jats:italic>is addressed via parallel frame differences in hardware. During the design phase, we took tethered laboratory EEG dataset and applied fuzzy logic to compute (a) spatiotemporal average of larger magnitude EEG data centers in 0.3 second intervals and (b) inside brainwave sources by Independent Component Analysis blind deconvolution without knowing the impulse response function. Our main contributions are the fidelity of quality wireless EEG data compared to original tethered data and the speed of compressive image recovery. We have compared our recovery of ill-posed inverse data against results using Block Sparse Code. Future work includes development of strategies to filter unwanted artifact from high-density EEGs (i.e., facial muscle-related events and wireless environmental electromagnetic interferences).<\/jats:p>","DOI":"10.1155\/2013\/241489","type":"journal-article","created":{"date-parts":[[2013,1,30]],"date-time":"2013-01-30T21:02:16Z","timestamp":1359579736000},"page":"1-8","source":"Crossref","is-referenced-by-count":5,"title":["Smartphone Household Wireless Electroencephalogram Hat"],"prefix":"10.1155","volume":"2013","author":[{"given":"Harold","family":"Szu","sequence":"first","affiliation":[{"name":"Department of Biomedical Engineering, The Catholic University of America, Washington, DC 20064, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Hsu","sequence":"additional","affiliation":[{"name":"Trident Systems Inc., Fairfax, VA 22030, 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