Binocular image acquisition and preprocessing device and method used for visual prosthesis

Abstract

The invention discloses a binocular image acquisition and preprocessing device and a method used for a visual prosthesis. The device comprises left and right miniature cameras and an image preprocessing device. The left and right miniature cameras synchronously collect video information in real time and output the collected video information to the image preprocessing device for image fusion, significant target extraction and other preprocessing. And then, a position, a distance and contour information of a significant target are further calculated. In the scheme, on one hand, the left and right miniature cameras are used to collect the image, and the image preprocessing device preprocesses the image; through using an advantage of double cameras, a general orientation and distance information of the significant target in a visual field are calculated, and the above information is important for a blind person and is also ignored by other correlation patents; on the other hand, conversion and information transmission are performed on significant target information in the visual field, and secondary information is neglected so that a calculated amount of a subsequent image coding module can be greatly reduced, and an operation speed of the visual prosthesis is increased.

Description

technical field [0001] The invention relates to the field of biomedicine, in particular to a binocular image acquisition and preprocessing device and method for a visual prosthesis. Background technique [0002] Vision is the main way for human beings to obtain external information in daily life, and plays an important role in human normal life and learning. The production process of vision is as follows: light acts on the visual organs to excite the sensory cells, and the information is processed by the visual nervous system to produce vision. Through vision, humans and animals perceive the size, light and shade, color, and movement of external objects, and obtain various information that is important to the survival of the organism. At least 80% of external information is obtained through vision, and vision is the most important for humans and animals. Feel. [0003] Human visual incompleteness or loss of vision due to various reasons has brought great inconvenience to t...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that in the existing visual prosthesis, the distance from the object to the prosthesis cannot be calculated according to the images collected by the image collector, so that the distance and angle information of the object cannot be fed back to the prosthesis user. The invention provides a binocular image acquisition and preprocessing device and method for visual prosthesis

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