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 。
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. [
出处
《计算物理》
CSCD
北大核心
2001年第2期143-146,共4页
Chinese Journal of Computational Physics
基金
国家自然科学基金资助项目 !(3 9893 3 4 0 -0 6
3 9670 186
6983 5 0 0 2 )
