EP1414250A2
Expired / Lapsed
EP
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Image display apparatus and image display method
Assignee: Sony Corp
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Filing: 2003-10-23
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Granted: —
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Expires: 2023-10-23
Abstract
Abstract An image display apparatus and method is disclosed that can prevent shot-sneaking of an image displayed by a projector apparatus. The projector apparatus embeds, into an original image as a display image (P) for which a color space of R, G, and B is used to reproduce a color, a display image portion (Ppr) in which the same color is represented with another color space of R, Cy, and B by color space conversion as a shot-sneaking preventing image portion. The shot-sneaking preventing image portion (Ppr) looks in the same color as that of the original image to the visual sense of the human being. However, the color component values of R and B are different in terms of the color component values of R and B between the color space of R, G, and B and the color space of R, Cy, and B. Therefore, for example, if a camera, which picks up an image in accordance with the R, G, B method is used to pick up an image of the display image, then the picked up display image is reproduced in a color different from the original color.
Inventors
- 👤 Hideo c/o Sony Corporation Tomita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 10:42
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/913; H04N9/00; H04N9/12; H04N9/31; H04N9/3102; H04N9/3105; H04N2005/91392
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
171 words
An image display apparatus, comprising: first image light generation means for generating image lights individually corresponding to a plurality of color components, which form a single first color component group; and display image light generation means for synthesizing the image lights of the individual color components generated by said first image light generation means to generate a first display image light; said first image light generation means setting color component values of the individual color components, which form the first color component group, so that the first display image light may be generated with a chromaticity point and a luminance equal to those of a second display image light to be generated by synthesizing image lights individually corresponding to color components of a second color component group whose color components in combination are different from those of the first color component group, said first image light generation means generating image lights individually corresponding to the color components, which form the first color component group, based on the set color component values.
Claim 2
Dependent Claim
109 words
The image display apparatus according to claim 1, further comprising: second image light generation means for generating image lights individually corresponding to the color components, which form said second color component group; said display image light generation means synthesizing the image lights of the individual color components generated by said second image light generation means to generate the single second display image light; and switching means for switching the image lights to be synthesized by said display image light generation means at a required timing between the image lights generated by said first image light generation means and the image lights generated by said second image light generation means.
Claim 3
Dependent Claim
43 words
The image display apparatus according to claim 2, wherein said switching means performs the switching at the required timing so that a variation according to a predetermined form is provided to a portion of the image formed with the first display image light.
Claim 4
Dependent Claim
173 words
An image display method, comprising: a first image light generation step of generating image lights individually corresponding to a plurality of color components, which form a first color component group; and a display image light generation step of synthesizing the image lights of the individual color components generated by the first image light generation step to generate a single first display image light; the first image light generation step setting color component values of the individual color components, which form the first color component group, so that the first display image light may be generated with a chromaticity point and a luminance equal to those of a second display image light to be generated by synthesizing image lights individually corresponding to color components of a second color component group whose color components in combination are different from those of the first color component group, the first image light generation step generating image lights individually corresponding to the color components, which form the first color component group, based on the set color component values.
Claim 5
Dependent Claim
110 words
The image display method according to claim 4, further comprising: a second image light generation step generating image lights individually corresponding to the color components, which form the second color component group; the display image light generation step synthesizing the image lights of the individual color components generated by the second image light generation step to generate the single second display image light; and a switching step of switching the image lights to be synthesized by the display image light generation step at a required timing between the image lights generated by the first image light generation step and the image lights generated by the second image light generation step.
Claim 6
Dependent Claim
43 words
The image display method according to claim 5, wherein the switching step performs the switching at the required timing so that a variation according to a predetermined form is provided to a portion of the image formed with the first display image light.
Claim 7
Dependent Claim
166 words
An image display apparatus, comprising: first image light generator for generating image lights individually corresponding to a plurality of color components, which form a single first color component group; and display image light generator for synthesizing the image lights of the individual color components generated by said first image light generator to generate a first display image light; said first image light generator setting color component values of the individual color components, which form the first color component group, so that the first display image light may be generated with a chromaticity point and a luminance equal to those of a second display image light to be generated by synthesizing image lights individually corresponding to color components of a second color component group whose color components in combination are different from those of the first color component group, said first image light generator generating image lights individually corresponding to the color components, which form the first color component group, based on the set color component values.
References Cited (Backward Citations)
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