Optimizing drive schemes for multiple projector systems
AssigneeBarco Visual Solutions, Inc.
InventorsEric Kozak, Gerwin Damberg, Anders Ballestad, Raveen Kumaran, James Gregson, Johannes Minor, Gil Rosenfeld
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Abstract
Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.
Claims16
A method for displaying an image defined by image data, the method comprising:
- generating visible first modulated light by modulating visible light from a first light source using a first imaging element;
- determining a lowest luminance level in the image;
- in response to determining the lowest luminance level in the image, providing visible boost light, wherein, when low black levels are not required, outputting a control signal to a boost light source for the visible boost light such that the visible boost light is added at a level greater than or equal to the lowest luminance level in the image;
- combining the visible boost light and the first modulated light;
- and
- the combined light is further modulated using a second imaging element.
A light projector for displaying an image defined by image data, the light projector comprising:
- a first light source;
- a first imaging element configured to modulate visible light from the first light source;
- a second imaging element configured to further modulate the modulated visible light generated by the first imaging element;
- a boost light source configured to deliver to the second imaging element visible boost light for modulation by the second imaging element, wherein the visible boost light is not modulated by the first imaging element;
- and
- a controller configured to process the image data and to output control signals for the first imaging element, the second imaging element, the first light source and the boost light source,
- wherein the controller is configured to determine a lowest luminance level in the image, and in response to determining the lowest luminance level in the image, providing the visible boost light, wherein, when low black levels are not required, outputting a control signal to the boost light source for the visible boost light such that the visible boost light is added at a level greater than or equal to the lowest luminance level in the image.
Dependencies are inferred from the claim text.