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Cho, Am
- Journal of the Ergonomics Society of Korea
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- v.16 no.1
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- pp.1-13
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- 1997
In this research, and investigation of the eye movement was performend when the objects perceived by the eye are three-dimensional objects, two dimensional images, and trhee dimensional images. This investigation was done by observing the EQG(Electro- oculogram) waves which were obtained from experiments. The observed waves were categorized into several groups. Differences among the waves were analyzed for each object and image perceived by the eye. In order to obtain waves for analysis, two kinds of experiments were performen. In each experiment, the saccadic eye movement and the smooth pursuit eye movement were considered as an independent variables. Waves obtained from the experiments were categorized into 4 types (Wave-1, Wave-2, Wave-3, Wave-4) depending on their characteristics. Unlike the other images, three dimensional image was revealed as a key factor for the active movement of the eye. Futhermore, a unique eye movement was observed in the case of three dimensional images where the focus of the eye was achieved through three steps.
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안보섭;조진호;김명남
- Proceedings of the Korea Multimedia Society Conference
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- 2004.05a
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- pp.859-862
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- 2004
전두엽에서 뇌파를 측정했을 때 안전도에 의해 뇌파는 크게 왜곡되게 되는데, 제안한 뇌파 적응필터를 이용하여 측정된 뇌파에서 안전도를 제거하게 된다. 제안한 필터는 전두엽에서 다채널 뇌파를 처리할 수 있는 구조이며 적응필터 기반의 FIR 필터구조로 이루어져 기존의 다채널 적응필터 구조보다 계산량을 크게 줄였고, 짧은 연산 시간으로 실시간 DSP 보드 수행시 더 많은 채널을 수행할 수 있게 되었다. 또한 일반적인 적응필터와는 달리 기준신호 없이 신호처리가 가능한 적응 신호선 보정기 구조이므로 한 채널에 대해서 하나의 입력 신호로 원하는 신호를 얻을 수 있다. 실험을 통하여 제안한 FIR 필터가 뇌파 측정시 안전도를 효과적으로 제거함을 확인하였다.
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Kim, Ja-Hee;Lee, Tae-Eog
- Proceedings of the CALSEC Conference
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- 2004.02a
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- pp.313-316
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- 2004
BCF ·Business Collaboration Framework ·Object implementation neutral approach to the exchange of global business requirements(omitted)
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