Rendering of image data for multi-view display

摘要

The invention pertains to rendering of image data for a multi-view display, such as image data for a lenticular auto-stereoscopic display. The method comprising the steps of providing view-dependent image data for an image, determining a view-dependent intensity function, or luminance function, for the image, applying a spatial filtering to a view-dependent coordinate of the intensity function, the spatial filtering being such as a low-pass filter, a high-pass filter or a combination of a low-pass and a high-pass filter, and sampling the view-dependent intensity function to a plurality of sub-images, each sub-image being associated with a view-direction of the image.

主权项

1. Method for rendering image data for a multi-view display, the method comprising the steps of:
providing, via an input, view-dependent image data for an image; determining, via a processor, a view-dependent intensity function L(x, y, φ) for the image from the view-dependent image data, for (i) each position (x,y) on the multi-view display and (ii) a viewing angle (φ), wherein the view-dependent intensity function describes an intensity of emission from the multi-view display as a function of the viewing angle (φ) for each position (x,y) of the multiview display, and further wherein the viewing angle (φ) comprises a view-dependent coordinate that represents a horizontal view direction of a viewer with respect to a centerline of the display panel; applying spatial filtering, via a spatial filter, to the view-dependent intensity function as a function of the viewing angle (φ) to provide a spatial filtered view-dependent intensity function; and sampling, via an output, after the spatial filtering, the spatial filtered view-dependent intensity function to a plurality of sub-images, each sub-image being associated with a view-direction of the image at a position of a group of pixels on the multi-view display, wherein light emitted from each group of pixels is directed into an angular distribution associated with the view direction of the respective group of pixels and provides separate images to the viewer's eyes.