Techniques of crosstalk compensation include performing a crosstalk measurement operation on each of a plurality of cells of a display to produce a plurality of crosstalk measurement, and then in response to detecting an observer in a field of view (FOV) of the display, performing a crosstalk compensation operation on each of the plurality of cells to reduce crosstalk to below a perceptual threshold of the observer. Each cell produces luminance over a series of repeat zones, with each repeat zone being a left or right channel and the repeat zones alternating these channels. A computer may measure the crosstalk by analyzing the values of the luminance over phase within each repeat zone. In some implementations, each cell is associated with a lookup table of crosstalk values. When an observer is detected in the FOV of the display, the computer performs a crosstalk compensation operation using the measured luminance values.

Techniques of crosstalk compensation include performing a crosstalk measurement operation on each of a plurality of cells of a display to produce a plurality of crosstalk measurement, and then in response to detecting an observer in a field of view (FOV) of the display, performing a crosstalk compensation operation on each of the plurality of cells to reduce crosstalk to below a perceptual threshold of the observer. Each cell produces luminance over a series of repeat zones, with each repeat zone being a left or right channel and the repeat zones alternating these channels. A computer may measure the crosstalk by analyzing the values of the luminance over phase within each repeat zone. In some implementations, each cell is associated with a lookup table of crosstalk values. When an observer is detected in the FOV of the display, the computer performs a crosstalk compensation operation using the measured luminance values.

A method for testing crosstalk of a screen. The method includes when a main screen and a secondary screen simultaneously display pictures of different grayscales, determining a standard parameter value of crosstalk for each of the secondary screen and the main screen caused by the other; determining an actual parameter value of crosstalk for each of the secondary screen and the main screen caused by the other; calculating a degree of crosstalk for each of the secondary screen and the main screen caused by the other, according to the standard parameter value of crosstalk and actual parameter value of crosstalk for each of the secondary screen and the main screen caused by the other, respectively.

A method for testing crosstalk of a screen. The method includes when a main screen and a secondary screen simultaneously display pictures of different grayscales, determining a standard parameter value of crosstalk for each of the secondary screen and the main screen caused by the other; determining an actual parameter value of crosstalk for each of the secondary screen and the main screen caused by the other; calculating a degree of crosstalk for each of the secondary screen and the main screen caused by the other, according to the standard parameter value of crosstalk and actual parameter value of crosstalk for each of the secondary screen and the main screen caused by the other, respectively.

The disclosure describes a method, apparatus and system for reducing crosstalk of auto-stereoscopic displays using higher resolution panels. In such panels, a fraction of a total number of views is generated by sending a same signal on a number of adjacent views. A signal processing correcting function is applied to the fractioned views to reduce crosstalk.

A method for reducing crosstalk in stereoscopic displays comprises providing a first first-eye image, a compensated image of the first first-eye image, a first other-eye image, and a compensated image of the first other-eye image; displaying each of the images at least once during a single frame flash sequence, wherein the first first-eye image is displayed to a first eye, the compensated image of the first first-eye image is displayed to another eye, the first other-eye image is displayed to the another eye, and compensated image of the first other-eye image is displayed to the first eye; wherein the compensated images can be displayed simultaneously and/or at least one of the compensated images or eye images can be displayed more than one time during a single frame flash sequence.

The disclosure provides a method for mitigating 3D crosstalk and a 3D display. The method includes: detecting first and second eye positions of a user, and determining a viewing angle of the user and a rotation angle of a head of the user accordingly; estimating a first reference position and a first midpoint position between first and second eyes of the user based on the first and second eye positions of the user; obtaining a second reference position, and estimating a difference between the first and second reference positions; correcting the first midpoint position to a second midpoint position based on the rotation angle of the user and the difference; and determining a first pixel for projecting to the first eye and a second pixel for projecting to the second eye among the pixels of the 3D display based on the second midpoint position.

The disclosure provides a method for mitigating 3D crosstalk and a 3D display. The method includes: detecting first and second eye positions of a user, and determining a viewing angle of the user and a rotation angle of a head of the user accordingly; estimating a first reference position and a first midpoint position between first and second eyes of the user based on the first and second eye positions of the user; obtaining a second reference position, and estimating a difference between the first and second reference positions; correcting the first midpoint position to a second midpoint position based on the rotation angle of the user and the difference; and determining a first pixel for projecting to the first eye and a second pixel for projecting to the second eye among the pixels of the 3D display based on the second midpoint position.

There is provided an image processing device including an analysis unit configured to analyze contrast according to a spatial frequency of an input image, a parallax transition information acquisition unit configured to acquire a relation of a crosstalk aggravation amount and a parallax transition corresponding to the contrast according to the spatial frequency of the input image with reference to a database in which the relation of the crosstalk aggravation amount and the parallax transition is stored in association with contrast according to spatial frequencies of various images, and a parallax computation unit configured to compute parallax corresponding to a predetermined threshold value set for the crosstalk aggravation amount in the acquired relation of the crosstalk aggravation amount and the parallax transition.

Image processing is performed to facilitate subtractive crosstalk cancellation in 3D images. In a global embodiment, pixel values are compressed to provide sufficient foot room for subtractive crosstalk cancellation. For video images the degree of compression may vary from frame to frame. Temporal filtering may be applied to reduce flicker. In a local embodiment luminance is added to and/or compression is performed in local areas to facilitate more complete subtractive crosstalk cancellation. The amount or added luminance or compression may be matched to the requirements of the local areas. Added luminance and/or compression may be made to vary smoothly in time and smoothly in space. Displays and other apparatus may be constructed to perform methods for partial or complete crosstalk cancellation.