Gaze correction for videoconferencing
One pressing problem of using webcams is the off-alignment of the camera with respect to a user’s gaze. This Final Year Project (FYP) will attempt to synthesize a gaze corrected (cyclopean) view using two stereo and synchronized webcams. The two webcams will be used to capture two separate live v...
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Format: | Final Year Project |
Language: | English |
Published: |
2009
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Online Access: | http://hdl.handle.net/10356/17023 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | One pressing problem of using webcams is the off-alignment of the camera with respect
to a user’s gaze. This Final Year Project (FYP) will attempt to synthesize a gaze
corrected (cyclopean) view using two stereo and synchronized webcams. The two
webcams will be used to capture two separate live video streams which will be
processed in an open-source computer vision software, OpenCV.
A technique based on “Dynamic Programming” (DP) is employed to derive a minimum
cost path along every scanline. Application of this technique will lead to dense stereo
correspondences between the frame (an instance of a video stream) pair.
For the purpose of this project, dynamic programming can be implemented in two ways:
Conventional 3-move DP or the new and improved 4-move, 4-plane DP by Criminisi
[1]. This FYP will implement both DP ways to compare and generate novel synthesized
cyclopean view and most importantly, validate the observations made by Criminisi’s
improved 4-move 4-plane algorithm. The suitability for implementation commercially
will also be evaluated and discussed. |
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