An Electronic Photoreceptor Sensitive to Small Changes in Intensity
Abstract
We describe an electronic photoreceptor circuit that is sensitive to small changes in incident light intensity. The sensitivity to change8 in the intensity is achieved by feeding back to the input a filtered version of the output. The feedback loop includes a hysteretic el(cid:173) ement. The circuit behaves in a manner reminiscent of the gain control properties and temporal responses of a variety of retinal cells, particularly retinal bipolar cells. We compare the thresholds for detection of intensity increments by a human and by the cir(cid:173) cuit. Both obey Weber's law and for both the temporal contrast sensitivities are nearly identical.
Cite
Text
Delbrück and Mead. "An Electronic Photoreceptor Sensitive to Small Changes in Intensity." Neural Information Processing Systems, 1988.Markdown
[Delbrück and Mead. "An Electronic Photoreceptor Sensitive to Small Changes in Intensity." Neural Information Processing Systems, 1988.](https://mlanthology.org/neurips/1988/delbruck1988neurips-electronic/)BibTeX
@inproceedings{delbruck1988neurips-electronic,
title = {{An Electronic Photoreceptor Sensitive to Small Changes in Intensity}},
author = {Delbrück, Tobi and Mead, C. A.},
booktitle = {Neural Information Processing Systems},
year = {1988},
pages = {720-727},
url = {https://mlanthology.org/neurips/1988/delbruck1988neurips-electronic/}
}