Ghost-compensation for improved stereoscopic projection

Abstract

A method and system for reducing ghost images in plano-stereoscopic image transmissions is provided. The method comprises establishing a plurality of expected ghosting profiles associated with a plurality of predetermined regions on a screen, and compensating for leakage in each predetermined region of a projected left and right eye images by removing an amount of ghost images leaking from the projected left eye image into the projected right eye image and vice versa. The system comprises a processor configured to receive the quantity of ghost artifacts and compute ghost compensation quantities for left eye images and right eye images. The processor is further configured to remove an amount of actual image ghost artifacts leaking from a projected left eye image into a projected right eye image and vice versa. The processor is also configured to compute ghost compensation quantities for each of a plurality of zones, each zone corresponding to a region on a screen having an expected ghosting profile associated therewith.

Description

[0001] This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 685,368, filed May 26, 2005, entitled “Ghost Compensation for Improved Stereoscopic Projection,” inventors Matt Cowan et al., the entirety of which is incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present design relates to the projection of stereoscopic images, and in particular to reducing the effects of image leakage between left eye and right eye views, also referred to as crosstalk or “ghosting.”[0004] 2. Description of the Related Art [0005] Stereoscopic images are created by supplying the viewer's left and right eyes with separate left and right eye images showing the same scene from respective left and right eye perspectives. This is known as plano-stereoscopic image display. The viewer fuses the left and right eye images and perceives a three dimensional view having a spatial dimension that extends into and out from the plan...

AI Technical Summary

Benefits of technology

[0010] According to a first aspect of the present design, there is provided a method for reducing ghost images in plano-stereoscopic image transmissions. The method comprises establishing a plurality of expected ghosting profiles associated with a plurality of predetermined regions on a screen, and compensating for leakage in each predetermined region of a projected left eye image and a projected right eye image by removing an amount of ghost images leaking from the projected left eye image into the projected right eye image and from the projected right eye image into the projected left eye image.

Problems solved by technology

But when using temporal switching (shuttering) or polarization for image selection, the left channel will leak to some extent into the right eye and vice versa.

Images