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Electro-tactile based full-color visual substitution device

An electro-tactile and visual technology, applied in the field of visual replacement, can solve the problems of slow video transmission, inconvenient use, and low resolution, and achieve the effect of easy portability, convenient operation, and small size

Inactive Publication Date: 2018-11-16
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some existing electrotactile methods still have some problems: slow video transmission, not clear; low resolution, inconvenient to use; image information is black and white information, etc.

Method used

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  • Electro-tactile based full-color visual substitution device
  • Electro-tactile based full-color visual substitution device
  • Electro-tactile based full-color visual substitution device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, this example mainly includes an image acquisition device, an image processing device, a signal processing device and stimulating electrodes. In the image acquisition device, the surrounding image information is collected in real time by a CCD camera set in front of the face (normal people can place it on the side or the back if they broaden their vision), and transmit it to the image processing device; in the image processing device, the The RGB value of each pixel of each frame image of the collected color video information is extracted, converted into a digital signal and transmitted to the signal processing device; in the signal processing device, three single-chip control modules can be used to convert three different The color signal is converted into the corresponding electrical stimulation pulse signal, and then transmitted to the stimulation electrodes at three different positions on the finger simultaneously through a multi-channel ti...

Embodiment 2

[0053] figure 2 It is the PCB circuit diagram of the signal control device and stimulating electrodes in this example. It mainly includes an input port, power supply, line transceiver, CPU control chip, general IO interface chip and electrode array. The input port is connected to the image processing device to receive the RGB information of the image transmitted by the image processing device; the power supply provides energy input for the whole device; the line transceiver is connected to the CPU control chip, which mainly plays the role of balancing voltage digital signal conversion ; The CPU control chip mainly completes the recognition and encoding of image information, and the three control chips respectively complete the processing of RGB information and convert it into corresponding electrical stimulation signals; the general IO interface chip is connected to the CPU control chip and electrodes The array is mainly to realize the function of communication between the c...

Embodiment 3

[0059] Figure 7 It is a recovery flowchart of the present invention when rebuilding the visual system. Since it is difficult for the brain to distinguish these electrical stimulation signals in a short time, a long-term training and learning process is required. First, there are some RGB solid-color pictures. After the three colors of RGB have been recognized, replace the picture with some non-RGB solid-color pictures, such as white, yellow, etc., that is, a simple combination of RGB; After a good recognition, replace the picture with a multi-color picture, and you need to recognize the various color information in the picture; then replace the picture with some life scene pictures, you need to be able to identify what kind of scene it is; finally Replace the life scene graph with a real-time life scene video, so that trainees can recognize the image information in the video in real time. The evaluation standard of each link is measured by the accuracy rate of recognition an...

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Abstract

The invention provides an electro-tactile based full-color visual substitution device which comprises an image collector, an image processor, a signal processor and stimulation electrodes; the stimulation electrodes make contact with different positions of the sensitive skin of the human body; the image collector is connected with the image processor via a data interface; the image processor is connected with the signal processor; the image collector collects image or video data via a camera and transmits the collected data to the image processor; the image processor encodes the collected datainto three types of potential information representing RGB color information according to RGB color codes, and sends the encoded potential information into the signal processor; the signal processorconverts the three types of encoded potential information into three types of electric stimulation signals that can be identified by the human skin, and the electric stimulation signals are output tothe human skin via the stimulation electrodes. Thus, the device of the invention can provide a full-color visual substitution scheme based on electro-tactile.

Description

technical field [0001] The invention relates to the technical field of vision substitution, in particular to an electric touch-based full-color vision substitution device. Background technique [0002] The protection of the well-being of the disabled is an important symbol of a country's civilization and is of great significance to the harmony and stability of the country. The World Health Organization estimates that about 10% of the world's 6.5 billion people (2012) have moderate or severe disabilities. According to the second national sampling survey of disabled people in 2006, the population of disabled people in China was 82.96 million, accounting for 6.34% of the total population; among them, 12.33 million (14.86%) were visually disabled. Among the visually disabled population, there are about 5 million blind people with complete loss of vision, accounting for 18% of the blind people in the world, exceeding the national population of Denmark. Vision is the most import...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H20/40G06T7/90G06F13/40H04N19/182H04N19/40
CPCG06F13/4063G06T7/90G16H20/40H04N19/182H04N19/40
Inventor 魏发南詹子恒郑江宏姚立纲
Owner FUZHOU UNIV
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