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- W2020101193 abstract "Algorithms for synergistically fusing acoustic and optical sensory inputs, thereby mimicking biological attentionalprocesses are described. Manual existing perimeter defense surveillance systems using more than one sensory modalitycombine different sensors' information to corroborate findings by other sensors and to add data from a second modality.In contrast to how conventional systems work, animals use information from multiple sensory inputs in a way thatimproves each sensory system's performance. We demonstrated that performance is enhanced when information in onemodality is used to focus processing in the other modality (a form of attention). This synergistic bi-modal operationimproves surveillance efficacy by focusing auditory and visual attention on a particular target or location.Algorithms for focusing auditory and visual sensors using detection information were developed. Thesecombination algorithms perform zoom-with-enhanced-acuity in both the visual and auditory domains, triggered bydetection in either domain. Sensory-input processing algorithms focus on specific locations, indicated by at least one ofthe modalities. This spatially focused processing emulates biological attention-driven focusing. We showed that giveninformation about the target, the acoustic algorithms were able to achieve over 80% correct target detection at signal-tonoiseratios (SNRs) of -20 dB and above, as compared with similar performance at SNRs of -10 db and above withouttarget information from another modality. Similarly, the visual algorithm achieved performance of over 80% detectionwith added noise variance of 0.001 without target indication, but maintained 100% detection at added noise variance of0.05 when acoustic target information was taken into account." @default.
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- W2020101193 date "2011-05-13" @default.
- W2020101193 modified "2023-09-23" @default.
- W2020101193 title "Biomimetic fusion that enhances sensor performance in a bimodal surveillance system" @default.
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- W2020101193 doi "https://doi.org/10.1117/12.883399" @default.
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