Title :
Adaptive ON-OFF spiking photoreceptor
Author :
Degenaar, P. ; Constandinou, T.G. ; Toumazou, C.
Author_Institution :
Inst. of Biomed. Eng., Imperial Coll., London, UK
Abstract :
An adaptive spike generator circuit for intelligent vision chips is presented. A pulse frequency modulation spike encoder, capable of providing very high dynamic ranges with power consumption similar to an animal retina, has been developed. The circuit is inspired by the ON-OFF opponency algorithm used by the human eye.
Keywords :
adaptive optics; circuit simulation; image sensors; integrated circuit design; photodetectors; photodiodes; pulse frequency modulation; vision; ON-OFF opponency algorithm; adaptive spike generator circuit; animal retina; human eye; intelligent vision chips; power consumption; pulse frequency modulation; spike encoder; spiking photoreceptor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063355
