Method and device for correcting distortion errors due to accommodation effect in stereoscopic display
AssigneeThomson Licensing
InventorsCyril Vienne, Laurent Blonde, Didier Doyen
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Abstract
The invention concerns a method and a device for correcting distortion errors in a 3D content viewed by an observer on a screen. The method comprises the step of determining a rendered roundness factor (ITO of a pinhole model projected cylinder, estimating a rendered roundness factor table depending on the defined distance of the observer to the screen and the disparity values of objects of the image, determining for the observer a disparity transform function (TD) as a function of the estimated rendered roundness factor table and modifying the object disparity values using the disparity transform so that a perceived roundness factor of one is provided.
Claims12
Method for correcting distortion errors in a 3D content viewed by an observer on a screen;
- the method being wherein it comprises the step of determining a rendered roundness factor (rrf) for the observer of the 3D content depending of the defined distance of the observer to the screen and of the disparity;
- determining for the observer a disparity transform function (TD) as a function of the determined rendered roundness factor so that the disparity values of objects of the 3D content are corrected for obtaining a perceived roundness factor of one.
Device for correcting distortion errors in a 3D content viewed by an observer on a screen,
- wherein it comprises
- means for determining a rendered roundness factor (rrf) for the observer of the 3D content depending of the defined distance of the observer to the screen and of the disparity;
- means for determining for the observer a disparity transform function (TD) as a function of the determined rendered roundness factor so that the disparity values of objects of the 3D content are corrected for obtaining a perceived roundness factor of one.
Device for correcting distortion errors in a 3D content as claimed in claim 11 wherein the disparity and distance to the screen of an object of the 3D content is defined as the average of disparity and average of distance to the screen of each pixel of the object.
Dependencies are inferred from the claim text.