Optical intensity modulation method and system, and optical state modulation apparatus
AssigneeSony Corporation
InventorsTomohiro Nishi, Michihiro Ohnishi
Life of this patent
Estimating the term…
Abstract
An optical intensity modulation having a periodicity in the temporal domain is applied on an optical state of an original display image, being displayed on a projection screen or a display screen, that takes into account a human temporal frequency contrast sensitivity characteristics, so that an optical state variation that is independent of the original display image would appear in an image recorded by capturing the display image using an image capturing apparatus, while the optical state variation in the display image being directly viewed remains imperceptible.
Claims31
An optical intensity modulation method comprising:
- causing a periodic modulation in optical intensity of an original display image in the temporal domain so as to generate an optical state variation in a recorded image that is obtained by image capturing a display image, wherein
- the optical state variation is independent of the original display image and generates no interfering effect in the display image, when directly viewed.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a projection type that projects the display image on the screen;
- and
- an optical state modulation apparatus that applies an optical intensity modulation with a periodicity in the temporal domain on the original display image by affecting a projection light in a projection light path.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a projection type that projects the display image on the screen;
- and
- an optical state modulation apparatus that applies the optical intensity modulation with a periodicity in the temporal domain on the original display image by controlling an optical source of the display apparatus.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a projection type that projects the display image on the screen;
- and
- an optical state modulation apparatus that applies the optical intensity modulation with a periodicity in the temporal domain on the original display image by controlling an image signal in the display apparatus.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a projection type that projects the display image on the screen;
- and
- an optical state modulation apparatus that applies an optical intensity modulation at each position in the display image independently from other positions in the display image with a periodicity in the temporal domain on the original display image by acting on an optical path between an emission point or an emission surface of the display apparatus and a viewer.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a projection type that projects the display image on the screen;
- and
- an optical state modulation apparatus that applies an optical intensity modulation at each position in the display image independently from other positions in the display image with a periodicity in the temporal domain on the original display image by controlling an image signal in the display apparatus.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a display screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a direct view type that displays the display image on the display screen;
- and
- an optical state modulation apparatus that applies the optical intensity modulation with a periodicity in the temporal domain on the original display image by affecting display light.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a display screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a direct view type that displays the display image on the display screen;
- and
- an optical state modulation apparatus that applies the optical intensity modulation with a periodicity in the temporal domain on the original display image by controlling an optical source of the display apparatus.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a display screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a direct view type that displays the display image on the display screen;
- and
- an optical state modulation apparatus that applies the optical intensity modulation with a periodicity in the temporal domain on the original display image by controlling an image signal in the display apparatus.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a display screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a direct view type that displays the display image on the display screen;
- and
- an optical state modulation apparatus that applies an optical intensity modulation at each position in the display image independently from other positions in the display image with a periodicity in the temporal domain on the original display image by acting on the optical path between an emission point or an emission surface of the display apparatus and a viewer.
An optical intensity modulation application system applying a modulation on a display image, so that an optical state variation, that is independent of an original display image, would appear in a recording of the display image, while the display image on a display screen remains undisturbed when viewed directly, the system comprising:
- a display apparatus of a direct view type that displays the display image on the display screen;
- and
- an optical state modulation apparatus applying an optical intensity modulation with a periodicity in the temporal domain at each position in the display image independently from other positions in the display image on the original display image by controlling an image signal of the display apparatus.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on a projected light from a projection type display apparatus;
- wherein, while a display image on a screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on an optical source of a display apparatus of a projector type display apparatus;
- wherein, while a display image on a screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on an image signal in a display apparatus of a projection type;
- wherein, while a display image on a screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation, which has a periodicity in the temporal domain in accordance with positions in an image, on an optical path between a point of light emission or a surface of light emission in a display apparatus of a projection type and an observer;
- wherein, while a display image on a screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation, which has a periodicity in the temporal domain, in accordance with a position in an image on an image signal in a display apparatus of a projection type;
- wherein, while a display image on a screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on a display light of a display apparatus of a direct view type;
- wherein, while a display image on a display screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on a light source of a display apparatus of a direct view type;
- wherein, while a display image on a display screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation having a periodicity in the temporal domain on an image signal in a display apparatus of a direct view type;
- wherein, while a display image on a display screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation, which has a periodicity in the temporal domain, in accordance with a position in an image on an optical path between a point of light emission or a surface of light emission in a display apparatus of a direct view type and an observer;
- wherein, while a display image on a display screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
An optical state modulation apparatus in an optical state modulation application system, wherein:
- the optical state modulation apparatus applying an optical intensity modulation, which has a periodicity in the temporal domain, in accordance with a position in an image on an image signal in a display apparatus of a direct view type;
- wherein, while a display image on a display screen remains undisturbed when viewed directly, a recorded image capturing the display image shows an optical state variation that is independent of an original display image.
Dependencies are inferred from the claim text.