计算物理 ›› 2001, Vol. 18 ›› Issue (2): 143-146.
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杨谦, 齐翔林, 汪云九
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YANG Qian, QI Xiang-lin, WANG Yun-jiu
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摘要： 哺乳动物纹状皮层简单细胞的空间感受野在电生理实验中被描述为局部、具有朝向和带通性质的信号编码检测器,它针对图象产生电发放的输出活动呈现稀疏分布的形式.从检测图象的物理过程入手建立了一个基于超定完备基的简单细胞集群稀疏编码的计算模型,并进行了自然图象的编码表达.
关键词: 感受野, 超完备基, 自组织学习, 稀疏编码
Abstract: The spatial receptive fields of simple cells in mammalian striate cortex have been characterizd as being localized,oriented,and band pass detectors.These receptive fields produced a sparse distribution of output activity in response to natural image.It shows a model of sparse coding with overcomplete basis sets in the population of simple cells from the physical process of image detection,and gives coding representation of image in realistic visual environment.
Key words: receptive field, overcomplete basis sets, self organization learning, sparse coding
中图分类号:
Q423
杨谦, 齐翔林, 汪云九. 视皮层V1区简单细胞的稀疏编码策略[J]. 计算物理, 2001, 18(2): 143-146.
YANG Qian, QI Xiang-lin, WANG Yun-jiu. THE SPARSE CODING STRATEGY EMPLOYED BY SIMPLE CELLS IN VISUAL CORTEX V1[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2001, 18(2): 143-146.
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http://www.cjcp.org.cn/CN/Y2001/V18/I2/143
