Method and system for reducing stereo image ghost

Abstract

The invention discloses a method and a system for reducing a stereo image ghost. The method comprises the following steps: calculating a brightness difference value between a left-eye picture and a right-eye picture; determining a space factor according to the two-dimensional position of the brightness difference value on a screen, wherein, the space factor shows brightness change of the brightness difference value on the left-eye picture or the right-eye picture; and multiplying the brightness difference value by the space factor to obtain a compensatory right ghost and a compensatory left ghost, and respectively deducting the compensatory right ghost and the compensatory left ghost on the left-eye picture and the right-eye picture.

Description

technical field [0001] The present invention relates to a method and system for displaying stereoscopic images, in particular to a method and system for alleviating ghost images of stereoscopic images. Background technique [0002] In recent years, the use of 3D glasses to watch stereoscopic images has gradually become popular. The generally known 3D glasses can be divided into two types: shutter glasses and polarized glasses. figure 1 It is a known timing diagram of images and shutter glasses, which is used to illustrate the relationship between the scanning position and time of a liquid crystal display with a frame refresh rate of 120 Hz paired with shutter glasses to display the images of the left and right eyes. When the LCD screen displays a frame of left-eye image 10, it adopts a sequential scanning method, and it takes 5.67 ms to sequentially scan from the grid line at the top of the LCD screen to the grid line at the bottom of the screen. At this time, the shutter gl...

AI Technical Summary

Problems solved by technology

In addition, this method only aims to improve the acceleration of the liquid crystal transition in the middle area of ​​the screen, but it will also make the liquid crystal transition in the upper area of ​​the LCD panel too strong, and the liquid crystal transition in the lower area is insufficient, and there will still be residual ghosting, which cannot be effective. eliminate

[0005] In addition to the above factors, insufficient occlusion of the shutter glasses is also a problem

When observing with one eye, if the shutter glasses themselves cannot completely cover the other eye, it is easy to cause comprehensive light leakage

This situation will also produce ghosting or crosstalk, which cannot be improved by the over-drive mechanism of the liquid crystal

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