Pixel shifting methods in projection systems
AssigneeDolby Laboratories Licensing Corporation
InventorsChristopher John Orlick, Jon Scott Miller
Life of this patent
Estimating the term…
Abstract
A projection system for pixel shifting comprising a light source configured to emit light and a spatial light modulator configured to receive the light and generate a modulated light. The spatial light modulator includes a plurality of micromirrors. The projection system includes a wobulation device configured to shift the modulated light by fractional pixels. The projection system includes a controller configured to, for each of a plurality of subperiods, control the light source to emit the light onto the spatial light modulator, and between each of the plurality of subperiods and with the wobulation device, shift the modulated light by a partial pixel distance greater than a half-pixel distance.
Claims10
1-8. (canceled)
A method of calibrating pixel shifting in a projection system, the method comprising:
- emitting, with a light source, a light;
- receiving, with a spatial light modulator, the light;
- modulating, with the spatial light modulator, the light to generate a modulated image, wherein the modulated image comprises a plurality of pixels;
- shifting, between each of a plurality of subperiods, the modulated light of each pixel of the modulated image by a partial pixel distance to generate a wobulated image;
- determining an amount of wobulation artifacts in the wobulated image;
- and
- adjusting the partial pixel distance based on the determined amount of wobulation artifacts.
15-21. (canceled)
Dependencies are inferred from the claim text.