A kind of image processing method

Abstract

The invention discloses an image processing device for a visual cortex prosthesis, which includes left and right micro cameras, an image preprocessor, and an image encoder, and the left and right micro cameras output video information collected synchronously and in real time to the image preprocessor , the image preprocessor splices and fuses the received two channels of video information into a full-view image, and further completes preprocessing operations such as image filtering, enhancement, and pixel reduction, and outputs it to the image encoder, and the image encoder will The received full-view image after preprocessing is further processed and coded, and converted into an electrical signal that can be received by the human visual cortex. The image processing device provided by the present invention converts the image information collected by the dual cameras into a current signal for stimulating the visual cortex, and can effectively reduce the intensity of the stimulating current under the premise of ensuring that the evoked neurons emit the same amount of action potential, thereby To achieve the purpose of effectively reducing brain tissue damage.

Description

technical field [0001] The invention relates to a visual cortical prosthesis, in particular to an image processing device and method for a visual cortical prosthesis. Background technique [0002] A visual prosthesis is a device that electrically stimulates the visual nervous system to allow the blind to restore light. At present, scientists and technicians in many countries are studying the use of visual prosthesis to restore the visual function of the blind. According to the implantation position of visual prosthesis, it can be divided into retinal prosthesis, optic nerve prosthesis and visual cortex prosthesis. Among them, the visual cortex prosthesis can directly stimulate the visual cortex, bypassing the retina and optic nerve that may have lesions in the visual pathway, and is suitable for more blind people. Therefore, it has a wider range of applications than the other two visual prostheses mentioned above. [0003] The design principle of the visual cortex prosthesi...

AI Technical Summary

Problems solved by technology

The master's thesis "Overall Design and Front-End Implementation of Artificial Visual Prosthesis Based on Primary Visual Cortex" published in June 2016 provides a corresponding solution, drawing on the idea of ​​sparse coding and using sparse neuron responses to represent the boundary information of the target in the image. However, the visual attention mechanism is not used to detect the salient areas of the image. The image processing scheme given in this paper is only applicable when the target occupies a large area of ​​the field of view. If the salient target in the image only occupies a small part of the field of view , after reducing the pixels of the entire image, the information about the salient target in the image will be greatly reduced

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