METHODS AND SYSTEMS FOR CREATING PASSIVE STEREO 3D IMAGES
First Claim
1. An image projector for creating one or more stereoscopic three dimensional images comprising left-eye images and right-eye images, the image projector comprising:
- a light source;
an imager that creates left-eye images and right-eye images from at least a portion of the light from the light source;
a color modulator that modulates light transmitted from the light source to the imager and that includes two sets of filters, wherein one filter modulates the light at one instant in time, and wherein the first set of filters includes;
a first red filter that transmits light according to a first red spectral distribution;
a first green filter that transmits light in a first green spectral distribution; and
a first blue filter that transmits light in a first blue spectral distribution;
wherein the second set of filters includes;
a second red filter that transmits light in a second red spectral distribution;
a second green filter that transmits light in a second green spectral distribution; and
a second blue filter that transmits light in a second blue spectral distribution; and
acontroller that synchronizes the color modulator with the imager such that;
when a left-eye image is being created by the imager, each one of the first set of filters are used to modulate the light at different time periods during the creation of the left-eye image; and
when a right-eye image is being created by the imager, each one of the second set of filters are used to modulate the light at different time periods during the creation of the right-eye image.
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Abstract
Methods and systems are provided for creating passive 3D images. A color modulator having at least six filters is used to send light to a single imager in respective RGB spectrums during successive time periods for a left-eye image and then in a different RGB spectrum for a right-eye image, or vice versa. Resulting 3D imaging systems can use a single projector and a single imaging chip without the need for specialized display surfaces, and thus are inexpensive to build and have a low maintenance cost. In addition, better color properties between the left and right images may be provided with a color spectrum of a first image having at least two peaks that surround a peak of the corresponding color for the second image. A color shift of the images may thus be decreased without a loss in other color properties.
30 Citations
26 Claims
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1. An image projector for creating one or more stereoscopic three dimensional images comprising left-eye images and right-eye images, the image projector comprising:
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a light source; an imager that creates left-eye images and right-eye images from at least a portion of the light from the light source; a color modulator that modulates light transmitted from the light source to the imager and that includes two sets of filters, wherein one filter modulates the light at one instant in time, and wherein the first set of filters includes; a first red filter that transmits light according to a first red spectral distribution; a first green filter that transmits light in a first green spectral distribution; and a first blue filter that transmits light in a first blue spectral distribution; wherein the second set of filters includes; a second red filter that transmits light in a second red spectral distribution; a second green filter that transmits light in a second green spectral distribution; and a second blue filter that transmits light in a second blue spectral distribution; and
acontroller that synchronizes the color modulator with the imager such that; when a left-eye image is being created by the imager, each one of the first set of filters are used to modulate the light at different time periods during the creation of the left-eye image; and when a right-eye image is being created by the imager, each one of the second set of filters are used to modulate the light at different time periods during the creation of the right-eye image. - View Dependent Claims (2, 3, 4, 5)
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6. A method of creating one or more stereoscopic three dimensional images comprising left-eye images and right-eye images, the method comprising:
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creating a left-eye image, wherein the creating includes; providing, to an imager, light in a first red spectrum during a first time period; providing, to the imager, light in a first green spectrum during a second time period; and providing, to the imager, light in a first blue spectrum during a third time period; and creating a right-eye image, wherein the creating includes; providing, to the imager, light in a second red spectrum during a fourth time period; providing, to the imager, light in a second green spectrum during a fifth time period; providing, to the imager, light in a second blue spectrum during a sixth time period, wherein the first to sixth time periods do not overlap. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method of creating one or more stereoscopic three dimensional images comprising left-eye images and right-eye images, the method comprising:
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creating a first image of a stereoscopic three dimensional image by respectively controlling an intensity of light to be displayed in a first red spectrum, a first green spectrum, and a first blue spectrum for a plurality of pixels of the first image; creating a second image of the stereoscopic three dimensional image by respectively controlling the intensity of light to be displayed in a second red spectrum, a second green spectrum, and a second blue spectrum for a plurality of pixels of the second image, wherein at least one of the first spectrums has at least two peaks that are centered around a peak for the corresponding color of the second spectrum. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification