Projection type image display system, projector, program, information storage medium and image projection method capable of avoiding obstacles in the projection area
First Claim
1. A projection type image display system comprising:
- a sensing section which senses a projection target area and outputs sensing information;
a detection section which performs edge detection based on the sensing information and outputting detection information which indicates edge in a sensed image;
a projectable area determination section which determines a projectable area having no obstacle in the projection target area, based on the detection information;
a projection area selection section which selects a projection area from the projectable area, based on selection by a user or a predetermined criterion;
an adjustment section which adjusts input image information such that an image is displayed on the projection area;
an image correction data generation section which generates image correction data used to correct the image depending on viewing environment, based on the sensing information;
a correction section which corrects color and brightness of the input image information, based on the image correction data; and
an image projection section which projects an image onto the projection area based on the input image information corrected by the correction section.
1 Assignment
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Accused Products
Abstract
To provide a projection type image display system, projector, program, information storage medium and image projection method which can project an image applicable to viewing environment of a changed projection position, a liquid crystal projector is provided with: a sensor for sensing a projection target area and outputting sensing information; an edge detection section for outputting detection information based on the sensing information; a projectable area determination section for determining a projectable area based on the detection information; a projection area selecting section for selecting a projection area from the projectable area; a sensing data generation section for generating sensing data applicable to viewing environment of the selected projection area, based on the sensing information of the selected projection area; an LUT data generation section for generating LUT data; a correction section for correcting image information based on the generated LUT data; and an image projection section for projecting an image onto the projection area based on the corrected image information.
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Citations
18 Claims
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1. A projection type image display system comprising:
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a sensing section which senses a projection target area and outputs sensing information; a detection section which performs edge detection based on the sensing information and outputting detection information which indicates edge in a sensed image; a projectable area determination section which determines a projectable area having no obstacle in the projection target area, based on the detection information; a projection area selection section which selects a projection area from the projectable area, based on selection by a user or a predetermined criterion; an adjustment section which adjusts input image information such that an image is displayed on the projection area; an image correction data generation section which generates image correction data used to correct the image depending on viewing environment, based on the sensing information; a correction section which corrects color and brightness of the input image information, based on the image correction data; and an image projection section which projects an image onto the projection area based on the input image information corrected by the correction section. - View Dependent Claims (2, 3, 4, 5)
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6. A projection type image display system comprising:
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a sensing section which senses a projection target area and outputs sensing information; a detection section which performs color-distribution detection based on the sensing information and outputs detection information which indicates color distribution in a sensed image; a projectable area determination section which determines a projectable area having no obstacle in the projection target area, based on the detection information; a projection area selection section which selects a projection area from the projectable area, based on selection by a user or a criterion; an adjustment section which adjusts input image information such that an image is displayed on the projection area; an image correction data generation section which generates image correction data used to correct the image depending on viewing environment, based on the sensing information; a correction section which corrects color and brightness of the input image information, based on the image correction data; and an image projection section which projects an image onto the projection area based on the input image information corrected by the correction section.
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7. A computer-readable storage medium storing computer-executable instructions, wherein said computer-executable instructions cause a computer to function as:
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a sensing section which senses a projection target area and outputting sensing information; a detection section which performs edge detection based on the sensing information and outputs detection information which indicates edge in a sensed image; a projectable area determination section which determines a projectable area having no obstacle in the projection target area, based on the detection information; a projection area selection section which selects a projection area from the projectable area, based on selection by a user or a predetermined criterion; an adjustment section which adjusts input image information such that an image is displayed on the projection area; an image correction data generation section which generates image correction data used to correct the image depending on viewing environment, based on the sensing information; a correction color section which corrects and brightness of the input image information, based on the image correction data; and an image projection section which projects an image onto the projection area based on the input image information corrected by the correction section. - View Dependent Claims (8, 9, 10, 11)
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12. An image projection method comprising:
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sensing a projection target area to output sensing information; performing edge detection based on the sensing information and outputting detection information which indicates edge in a sensed image; determining a projectable area having no obstacle in the projection target area, based on the detection information; selecting a projection area from the projectable area based on user selection or a predetermined criterion; adjusting input image information such that an image is displayed on the projection area; generating image correction data used to correct the image depending on viewing environment, based on the sensing information; correcting color and brightness of the input image information, based on the image correction data; and projecting an image onto the projection area based on the input image information in which color and brightness are corrected. - View Dependent Claims (13, 14, 15, 16)
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17. A computer-readable storage medium storing computer-executable instructions, wherein said computer-executable instructions cause a computer to function as:
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a sensing section which senses a projection target area and outputting sensing information; a detection section which performs color-distribution detection based on the sensing information and outputs detection information which indicates color distribution in a sensed image; a projectable area determination section which determines a projectable area having no obstacle in the projection target area, based on the detection information; a projection area selection section which selects a projection area from the projectable area, based on selection by a user or a predetermined criterion; an adjustment section which adjusts input image information such that an image is displayed on the projection area; an image correction data generation section which generates image correction data used to correct the image depending on viewing environment, based on the sensing information; a correction section which corrects color and brightness of the input image information, based on the image correction data; and an image projection section which projects an image onto the projection area based on the input image information corrected by the correction section.
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18. An image projection method comprising:
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sensing a projection target area to output sensing information; performing color-distribution detection based on the sensing information and outputting detection information which indicates color distribution in a sensed image; determining a projectable area having no obstacle in the projection target area, based on the detection information; selecting a projection area from the projectable area based on user selection or a predetermined criterion; adjusting input image information such that an image is displayed on the projection area; generating image correction data used to correct the image depending on viewing environment, based on the sensing information; correcting color and brightness of the input image information, based on the image correction data; and projecting an image onto the projection area based on the input image information in which color and brightness are corrected.
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Specification