2 resultados para psychophysics

em Chinese Academy of Sciences Institutional Repositories Grid Portal


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Phosphatidylcholine (PC) and six other PC-similar lipids are coated on interdigital electrodes, IEs, as sensitive membranes. Eight alcohols (C-1-C-4) are tested in a flow system at room temperature. It is found that all responses are log(response)-log(concentration) linear relations. These results agree with Steven's law in psychophysics. Moreover, the thresholds of the sensors are coincident with human olfactory thresholds. The authors have analysed the data of the lipid hypothesis suggested by Kurihara et al. We have found that this hypothesis is also in agreement with Steven's law. Lipid microresistors are real mimicking olfactory sensors. A definition of an olfactory sensor is suggested.

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根据心理物理学、神经生理学、认知神经学等学科在视觉认知领域的部分研究成果,结合机器视觉、图像处理领域在图像增强方面已经提出的一些方法,提出了结合先验知识的多窗口结构下的分块中值滤波方法,在每一个窗口内单独进行处理与分析,突出了视觉处理目的,减少了运算量, 节省数据存储空间,达到了令人满意的滤波效果,能够在原始图像比较复杂的情况下,较好地对其进行预处理,可以改善、提高后期图像处理过程,如图像分割、图像分析的正确性和有效性。