<p>Lip-reading computers that unlock with a word may soon become a possibility after a new study has found that every person moves their lips a little differently when they speak.<br /><br /></p>.<p>Ahmad Hassanat at the University of Mu'tah in Jordan trained software to look for patterns of lip and mouth movements associated with different words as people spoke to a camera - how much of the teeth were showing in any given video frame, for example.<br /><br />From mouth movements alone, the system correctly identified the words being said nearly 80 per cent of the time, 'New Scientist' reported.<br /><br />Hassanat also found that every person moved their lips a little differently when they spoke.<br /><br />Even the best actor would find it impossible to exactly duplicate someone else's lip movements, Hassanat said.<br /><br />This could mean that one day a "visual password" could work as a form of biometric security, even allowing people to log on to computers simply by having them watch their mouths as they speak</p>
<p>Lip-reading computers that unlock with a word may soon become a possibility after a new study has found that every person moves their lips a little differently when they speak.<br /><br /></p>.<p>Ahmad Hassanat at the University of Mu'tah in Jordan trained software to look for patterns of lip and mouth movements associated with different words as people spoke to a camera - how much of the teeth were showing in any given video frame, for example.<br /><br />From mouth movements alone, the system correctly identified the words being said nearly 80 per cent of the time, 'New Scientist' reported.<br /><br />Hassanat also found that every person moved their lips a little differently when they spoke.<br /><br />Even the best actor would find it impossible to exactly duplicate someone else's lip movements, Hassanat said.<br /><br />This could mean that one day a "visual password" could work as a form of biometric security, even allowing people to log on to computers simply by having them watch their mouths as they speak</p>