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We introduce a coupled convolution layer comprising two parallel convolutions with mutually constrained weights. Inspired by the human retina mechanism, we constrain the convolution weights such that one set of weights should be the negative of the other to mimic responses of on-center and off-center retinal ganglion cells. Our analysis shows that the retina-like convolution layer, a special case...
Recently, we cloned purpurin cDNA as an upregulated gene in the axotomized fish retina. The retina-specific protein was secreted from photoreceptors to ganglion cell layer during an early stage of optic nerve regeneration in zebrafish retina. The purpurin worked as a trigger molecule for axonal regrowth in adult injured fish retina. During zebrafish development, purpurin mRNA first appeared in ventral...
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