This invention discloses an intelligent
visual prosthesis system and encoding method. The
system includes an external sensing
processing unit and an internal implanted stimulation unit. The external sensing
processing unit includes at least an environment sensing unit and a first
data processing unit, and the internal implanted stimulation unit includes at least a stimulation
signal generation unit and an
electrode array. The environment sensing unit is used to acquire a target image. The first
data processing unit is used to match the current scene to a preset lighting scene mode according to the image features or ambient
illuminance of the target image, independently configure anchor points for the corresponding image
grayscale value boundaries for the matched lighting scene mode, and generate a
grayscale-
charge density mapping relationship corresponding to the lighting scene mode. Then, the
grayscale value of each pixel of the target image is mapped to the corresponding target
charge density, and a stimulation command is generated and output to the stimulation
signal generation unit. The stimulation
signal generation unit is used to generate an electrical stimulation
pulse sequence according to the stimulation command and a preset reference pulse width and output it to the
electrode array.