Title :
Compact integrated motion sensor with three-pixel interaction
Author_Institution :
Div. of Biol., California Inst. of Technol., Pasadena, CA, USA
fDate :
4/1/1996 12:00:00 AM
Abstract :
An integrated circuit with on-chip photoreceptors is described, that computes the bi-directional velocity of a visual stimulus moving along a given axis in the focal plane by measuring the time delay of its detection at two positions. Due to the compactness of the circuit, a dense array of such motion-sensing elements can be monolithically integrated to estimate the velocity field of an image and to extract higher-level image features through local or global interaction
Keywords :
CMOS integrated circuits; edge detection; image sequences; motion estimation; optical sensors; bi-directional velocity; compact integrated motion sensor; global interaction; higher-level image features; integrated circuit; local interaction; motion-sensing elements; on-chip photoreceptors; three-pixel interaction; velocity field estimation; visual stimulus; Analog computers; Biology computing; Circuit noise; Correlation; Data mining; Gradient methods; Image motion analysis; Motion estimation; Optical sensors; Very large scale integration;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
