We propose ganglion cell receptive-field-type filters with the use of the photoreceptor protein bacteriorhodopsin. Visual image processing is possible with the use of only one sensing element. We also demonstrate that our difference of Gaussians (DOG) filter, which mimics on-center off-suround ganglion cell receptive fields, has the function of a Laplacian filter and can act as an edge detecor. The X-type receptive field responses obtained by the filter, for a variety of stimuli, are compared with available electrophysiological recodings.
Yoshiko Okada-Shudo, "Temporal response of protein-based artificial ganglion cell receptive field (Conference Presentation)," Proc. SPIE 9994, Optical Materials and Biomaterials in Security and Defence Systems Technology XIII, 999403 (Presented at SPIE Security + Defence: September 28, 2016; Published: 5 December 2016); https://doi.org/10.1117/12.2242179.5229530545001.
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