Electroencephalogram controlled video input auditory display guide device and method

Abstract

The invention discloses an electroencephalogram controlled video input auditory display guide device and method. The device comprises a video collection module, an electroencephalogram collection module, a processor and an audio playback module, wherein the video collection module is connected with the processor, the electroencephalogram module is connected with the processor and is used for collecting electroencephalogram signals, the audio playback module is connected with the processor, and the processor is connected with the video collection module, the electroencephalogram collection module and the audio playback module. A region of interest in the guide device is controlled through the electroencephalogram signals, the whole sensing image and details of interest in the sensing imageare switch conveniently, a region of interest in the current video is set through electroencephalogram, a flexible auditory display resolution and control method is provided for users, the user can sense global information or local detail information of the image through setting of the region of interest, so that the defect of low auditory display resolution is overcome effectively. The device andmethod can be widely used in occasions requiring guide.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a brain-electrically controlled video input auditory display device and method for guiding the blind. Background technique [0002] 90% of the information obtained by humans comes from vision, and visual damage will bring great inconvenience to people's lives. When visual impairment occurs, after adaptation and training, patients can usually use some devices to convert visual information into signals that other sensory organs can perceive, so as to indirectly obtain part of the visual function with the help of other sensory organs, improving self-care ability and quality of life . This device that converts visual information into signals that other sensory organs can perceive is generally called a blind guide system. [0003] Existing blind guide systems have many different structures. Commonly used input sensors include ultrasonic, infrared, laser, video, multi-sensor input, e...

AI Technical Summary

Problems solved by technology

[0005] However, the existing video input auditory display guide system has the following disadvantages: (1) The resolution of the auditory display is low

Due to the different ways of receiving information between human auditory organs and visual organs, the existing auditory display technology can only roughly represent the key content in the video input, and it is difficult to further represent more detailed video information

(2) The resolution of the auditory display is fixed

In the existing blind-guiding system with video input and auditory display, the auditory display usually has a fixed mapping relationship with the video input screen, so the auditory display has a fixed resolution and it is difficult to provide users with more information

(3) Inflexible control

In the existing blind guide system with video input and auditory display, it is difficult for the user to perform actions such as gazing at the area of ​​interest and focusing on the distance as conveniently as using the visual organ, which is not convenient and flexible enough to use

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