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The car will understand that the driver is talking on a mobile phone

19.08.2014

Scientists from the University of Santa Catarina (Brazil) have created an automotive software and hardware solution that allows you to recognize the use of a driver while driving a mobile phone.

The idea of Brazilian researchers is to use a digital camera that is installed in the dashboard. After recognizing the driver, the camera starts recording video, focusing on the face as well as the ear areas where a hand with a mobile phone can be. The resulting image is analyzed for the presence of pixels that match the color of human skin. The system divides the picture into segments, highlighting the head and hands, after which the contact of these parts of the body is determined and the probability of talking on the phone is calculated.

The algorithm created by scientists was tested on five videos, which were recorded with a resolution of 320x240 pc and a frequency of 15 fps. To perform the analysis, the system divided the clips into fragments with a duration of 3 s. During the tests, the program was able to recognize the driver who was talking on the phone with an efficiency of more than 87%.

As the researchers admit, the system they have created is still imperfect. For example, the accuracy of its work is noticeably reduced when direct sunlight hits the face of a person driving a person. It is also unknown how the electronics will react to a driver wearing gloves, and whether it will be able to determine that the vehicle is not moving. In addition, it is not yet clear what specific benefits such a development will bring: will it warn the driver with a sound signal that they need to stop using the “mobile phone” while driving, or will it be able to somehow prohibit telephone conversations while driving.

US lawmakers have previously proposed linking a smartphone to a car's on-board system to disable the ability to send text messages while driving, or equipping a car with special sensors that can detect when a driver is talking on the phone. Another method of dealing with those who like to chat while driving on the phone, which has already been reported by the media, is to use "car mode" (incoming calls and text messages are received in the background so as not to distract the driver), which the mobile device will automatically transfer to when its connection to the on-board electronics of the vehicle.

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