Patent ID: 9269312
Filing Date: 2016-02-23
CPC Classification: G06T,G09G

Claim Text:
1. A method for estimating an effective luminance pattern representing a distribution of projected light in a display apparatus, the method comprising: determining driving values for one or more light sources arranged to project light; determining an effective luminance pattern for the projected light by: for each of the one or more light sources determining a contribution to the effective luminance pattern for each of a plurality of components of a point spread function for the light source; and, combining the contributions of the components the effective luminance pattern to yield an estimated effective luminance pattern; wherein one of the plurality of components consists essentially of a higher-order part of a set of point spread function values and a second one of the components consists essentially of a lower-order part of the set of point spread function values and the set of point spread function values comprises 16-bit words and the higher-order and lower-order parts of the set of point spread function values each comprises 8-bit words.