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15 February 2011 On-screen-display (OSD) menu detection for proper stereo content reproduction for 3D TV
Ekaterina V. Tolstaya, Victor V. Bucha, Michael N. Rychagov
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Proceedings Volume 7863, Stereoscopic Displays and Applications XXII; 786329 (2011) https://doi.org/10.1117/12.876635
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States
Abstract
Modern consumer 3D TV sets are able to show video content in two different modes: 2D and 3D. In 3D mode, stereo pair comes from external device such as Blue-ray player, satellite receivers etc. The stereo pair is split into left and right images that are shown one after another. The viewer sees different image for left and right eyes using shutter-glasses properly synchronized with a 3DTV. Besides, some devices that provide TV with a stereo content are able to display some additional information by imposing an overlay picture on video content, an On-Screen-Display (OSD) menu. Some OSDs are not always 3D compatible and lead to incorrect 3D reproduction. In this case, TV set must recognize the type of OSD, whether it is 3D compatible, and visualize it correctly by either switching off stereo mode, or continue demonstration of stereo content. We propose a new stable method for detection of 3D incompatible OSD menus on stereo content. Conventional OSD is a rectangular area with letters and pictograms. OSD menu can be of different transparency levels and colors. To be 3D compatible, an OSD is overlaid separately on both images of a stereo pair. The main problem in detecting OSD is to distinguish whether the color difference is due to OSD presence, or due to stereo parallax. We applied special techniques to find reliable image difference and additionally used a cue that usually OSD has very implicit geometrical features: straight parallel lines. The developed algorithm was tested on our video sequences database, with several types of OSD with different colors and transparency levels overlaid upon video content. Detection quality exceeded 99% of true answers.
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Ekaterina V. Tolstaya, Victor V. Bucha, and Michael N. Rychagov "On-screen-display (OSD) menu detection for proper stereo content reproduction for 3D TV", Proc. SPIE 7863, Stereoscopic Displays and Applications XXII, 786329 (15 February 2011); https://doi.org/10.1117/12.876635
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KEYWORDS
On-screen displays
Video
Transparency
3D displays
3D image processing
Algorithm development
Databases
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