New software lets Skype users maintain eye contact while chatting
London: Skype users can now maintain eye contact while chatting - thanks to a new software!
Researchers have developed a new software designed to correct the `gaze` of people while video-chatting on Skype, without them having to remember to look at the camera.
Lack of eye contact is said to be a considerable obstacle to the feel of a `real` conversation, researchers said.
This problem arises because the speaker looks mainly at their counterpart`s picture instead of at the camera.
Researchers are now offering a solution to the problem for everyday use: software that recognises the face in the video and rotates it so that the person appears to be looking at the camera.
"We want to make video conference calls as similar as possible to a real meeting," said Claudia Kuster, a doctoral student at the Computer Graphics Laboratory ETH Zurich.
Until now, only larger companies have been able to afford the luxury of creating artificial eye contact during video conferences; this has required complex mirror systems or several cameras and special software. No satisfactory solution to the problem has existed for private use.
This is now changing thanks to the new software that Kuster has developed under the guidance of Markus Gross, Professor of Computer Science at ETH Zurich.
Thanks to Kinect, a new generation of cameras that collect colour and depth information simultaneously, the system is available for home use.
The software uses a depth map calculated from the image information and a programme that recognises faces in real-time video.
In contrast to previous solutions, Kuster and her colleagues do not turn the entire video image including the background, thus avoiding the problem of missing information in the original image resulting in gaps appearing in the rotated picture.
Instead, her algorithm turns only the face and inserts it seamlessly into the original image. The software looks for a contour around the face in which the border pixel in the original and the corresponding pixel in the rotated image have as many similar colour values as possible.
"The software can be user adjusted in just a few simple steps and is very robust," said Kuster.
If the programme temporarily loses sight of the face for example, if the person turns their head or disappears behind an object such as a cup the software leaves the original image in place.
The software can cope effortlessly with changing light conditions and even two faces at the same time, as the researchers demonstrated in a video.
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