31 results about "Central neuron" patented technology

The invention discloses an analog-digital (integrated coding information taking time as analog quantity and pulse as digital quantity) decoding method and a device based on the neuron working principle. The device comprises a pulse width adjusting circuit, a RC integrating circuit and a low-pass filter circuit. The pulse width adjusting circuit adjusts the widths of a series of pulses arranged according to the time sequence, the RC integrating circuit carries out RC integration on the series of pulses which are arranged according to the time sequence and subjected to the pulse width adjustment, and the low-pass filter circuit filters signals subjected to the RC integration so as to restore the series of pulses arranged according to the time sequence to input signals corresponding to the pulses. In the invention, the analog-digital decoding device based on the neuron working principle is designed by simulating the decoding mechanism of biological neurons on time-pulse coding signals, and the information processing mode is realized by using a circuit method.

The invention aims at providing a contour detection method based on non-classical receptive field space summation modulation. The method comprises the steps that 1, a to-be-detected image subjected to grey-scale processing is input; 2, Gabor filtering is conducted on the to-be-detected image to obtain Gabor energy values of all pixel points in all directions; 3, a space summation modulation weight of a non-classical receptive field to a central neuron is calculated out; 4, modulation response of the non-classical receptive field to the central neuron on a distance weight is calculated out; 5, stimulating response of the central neuron to the non-classical receptive field is obtained through calculation; 6, stimulating response of the central neuron to combined modulation of a classical receptive field and the non-classical receptive field is obtained through calculation and serves as a corresponding contour value; 7, non-maximum suppression and double-threshold processing are conducted on the contour values of all the pixel points, and final contour values of all the pixel points are obtained. The contour detection method based on non-classical receptive field space summation modulation overcomes the defects that in the prior art, the simulation effect is poor, and the contour recognition rate is low and has the advantages of being good in simulation effect and high in contour recognition rate.