There are currently 70 million deaf people in the world. As a special group, deaf people can use body language to communicate with others, but if they encounter people who cannot understand body language, the two sides cannot communicate properly. Recently, Texas A&M University has developed a new type of wearable technology that may break the communication barrier between deaf and other people who do not understand body language in the future.
Similar to other wearable devices, this wearable device also relies on sensors to work, including sensors that track the movements of deaf-mute gestures, as well as EMGs that capture the muscles produced by deaf people while doing physical speech or Sensors for EMG signals, the system is able to identify and analyze these signals to "read" what they say.
Roozbeh Jafari, a professor of biomedical engineering at Texas A&M University, said the new wearable device system "decodes" muscle movements captured from the wrist, some of which are indirectly obtained by tracking finger movements, such as sometimes for deaf people. Fist to do body language, this muscle activity will be different from arm movement.
For researchers, this difference is the biggest challenge they face in developing this system. Because in real life, there are many hoarse exchanges, the system needs to process and translate these different signal actions accurately and in real time. This process requires mature algorithms to support.
Another challenge is that even if an action is done, let the two deaf people do the same, and it will not be exactly the same. This means that there is no uniform standard for these body language, which increases the difficulty of system identification. . However, the researchers let the system "learn" to the user by setting up a program.
"When you use this wearable device for the first time, there may be some errors in the operation of the system, but as you use this device more often, the system will gradually learn the user's behavior and build a self around the user. Learning mode," Jafari said.
Currently, this device is still a prototype product that needs to connect the device to a computer or smartphone to send the translated body language. However, the team said that in the future they will shrink the size of the device so that users can wear it on the wrist, similar to a smart watch.
On the other hand, the communication between people should be continuous and uninterrupted, so the researchers hope that the system can be translated in one sentence rather than just a few words. In addition, the researchers hope to add a synthesizing speaker to this wearable device, so that those who are deaf can not only understand other people's gestures, but also "speak".
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