Cross-interference reduction using spatial mapping for integral imaging

Because a three-dimensional image can be seen from a desired viewpoint without the aid of special viewing glasses, integral imaging is an ideal way to create 3D auto-stereoscopic images. But 3D displays suffer from crosstalk, an effect that reduces 3D image quality or even inhibits the viewer´s ability to correctly perceive depth. Previous optical crosstalk reduction methods decrease the amount of visible crosstalk. However, these methods are not necessarily easy and may not be practical. We describe a new spatial-mapping method based on gradient of elemental image to overcome the problem. This method can eliminate the crosstalk to a great extent. Experimental results indicating the advantages of this method are shown.