Caelli T, Hubner M
Vision Res. 1983;23(10):1053-5. doi: 10.1016/0042-6989(83)90016-0.
Recent evidence indicates that the vertebrate visual system possesses units whose receptive fields may be represented as narrow-band orientation and frequency specific filters. It has been indirectly demonstrated that equivalent psychophysical units act in such a way as to not discriminate the individual frequency components within each frequency band. Here we directly demonstrate this to be the case with digital images and so show an efficient energy code for spatial vision.
最近的证据表明，脊椎动物视觉系统拥有一些单元，其感受野可以表示为窄带方向和频率特定滤波器。已经间接证明，等效的心理物理单元的作用方式是不区分每个频带内的各个频率成分。在这里，我们用数字图像直接证明了情况确实如此，从而展示了一种用于空间视觉的高效能量编码。
