Projection display intensity equalization

摘要

In some examples, the intensity of an image projected onto a surface at an oblique angle may be controlled to equalize the intensity, and thereby to eliminate from the image perceptible variations in brightness. For instance, a first distance to a closer portion of the image and a second distance to a farther portion of the image may be used to determine an amount of change to be made to the intensity of at least one portion of the image. In some implementations, a filter may be used to control changes to the intensity of the image. In other implementations, the image information may be modified, such as on a pixel level, to control the intensity of the image.

主权项

1. A system comprising:
a projector to project light corresponding to an image, the projector including a filter to modify an intensity of the light; one or more processors; one or more computer-readable media; and a presentation module maintained on the one or more computer-readable media, which when executed by the one or more processors, causes the one or more processors to perform operations that include:
determining a first distance from the projector to a closer portion of a display surface upon which the image is to be projected;determining a second distance from the projector to a farther portion of the display surface upon which the image is to be projected;modifying the intensity of at least a portion of the light by gradually transitioning from a first transparency at a first portion of the filter to a second transparency at a second portion of the filter based at least in part on at least the first distance and the second distance; andcausing the projector to project the light onto the display surface, the light including at least the portion of the light having the modified intensity.