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Possible to recover spoken words by studying the video objects in the room without a sound - VIDEO PDF Print E-mail
Tuesday, 09 December 2014 10:00

Scientists from the Catholic University of America, located in Washington, offered a way to extract audio information from video sequences captured during mute the sound. Engineers are literally forced to the wall "conspiracy".

"One of the intriguing consequence of the work of scientists is the ability to restore the spoken words using only the study of video objects placed in the room," - commented on the study by researchers at the Xerox Research Fellow Reiner Eschbach.

Scientists used the fact that during its propagation in the air sound waves cause the objects that are found on their way to fluctuate. Analyzing the nature of vibrations in selected points of subjects with high-speed shooting, experts have proposed a way to restore a propagating acoustic information.



Amplitude, which varies subjects in the interaction with the sound wave, small, and therefore to analyze the vibrations scientists chose small and light objects (such as a sheet of paper), are relatively easy to acoustic impact.

For data analysis, scientists have proposed a special program image processing method such fluctuations. He suggests the use of numerical Gauss-Newton.

"Currently, we are improving our technology, seeking to improve its accuracy and sensitivity, and we are going to learn how to take measurements in real time, as well as to remove interference from other fluctuations," - said one of the study's authors.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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