Silicon photocells were used to make an artificial 1-D ganglion cell receptive field,characterized as a Zero-crossing filter. The artificial receptive field was further applied to construct the image system and had detected successfully image edge. Uulike general image system, based on artificial receptive field, this image system can extract edge information simultaneously when the image was being input. It was close to animal visual system. The results will be helpful to the developmeut of new artificial ...