 | Allah Almighty tells us in the Qur’an about signs of lying in face and voice of the liar,let us read |
Face detection
Researchers have noticed some facial changes when speaking. Thus, they experienced it by photographing a man telling truth, and just in the lying moment, specific features appear on his face, which are different from those appearing in the truth state. But, these features are very rapid that human being eye cannot see.
“Polygraph lie detectors are notoriously unreliable: 10 percent of liars pass, and 20 percent of truth tellers fail. But the real truth is written all over your face” says cognitive scientist Marian Stewart Bartlett, at the Institute for Neural Computation in San Diego.
Now there's a way to catch liars in the act. Bartlett and several colleagues at the Salk Institute have developed a high-speed computer program that analyzes videotapes to automatically detect a subject's micro expressions. The program superimposes a grid over a baseline black-and-white photograph of the subject's face devoid of all expression. Any change in expression, no matter how subtle or fast, registers on the grid as a departure from baseline. For example, if eyebrows lower in anger, they leave their neutral position--a movement documented by the computer. "The method it uses," Bartlett says, "is based on the way the brain interprets vision." The neurons that deal with vision each look at a different part of an image, and the brain assembles the information.
Now there's a way to catch liars in the act. Bartlett and several colleagues at the Salk Institute have developed a high-speed computer program that analyzes videotapes to automatically detect a subject's micro expressions. The program superimposes a grid over a baseline black-and-white photograph of the subject's face devoid of all expression. Any change in expression, no matter how subtle or fast, registers on the grid as a departure from baseline. For example, if eyebrows lower in anger, they leave their neutral position--a movement documented by the computer. "The method it uses," Bartlett says, "is based on the way the brain interprets vision." The neurons that deal with vision each look at a different part of an image, and the brain assembles the information.
Every emotion a person feels elicits an involuntary facial expression, but often just for a split second. When someone tries to cover those emotions, the expression passes so quickly most people miss it.
Allah tells us about this scientific fact as He Almighty says about atheists who denies the Qur’an: (And when Our Clear Verses are recited to them, you will notice a denial on the faces of the disbelievers!){Sûrat Al-Hajj -The Pilgrimage –verse72}.
Allah tells us about this scientific fact as He Almighty says about atheists who denies the Qur’an: (And when Our Clear Verses are recited to them, you will notice a denial on the faces of the disbelievers!){Sûrat Al-Hajj -The Pilgrimage –verse72}.
