US6824276B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image processing with changes of optical system of projector
Assignee: Seiko Epson Corp
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Filing: 2002-09-24
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Granted: 2004-11-30
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Expires: 2022-09-24
Abstract
Abstract The present invention enhances picture quality of a projected image by a projector. A projector has a detachable optical filter that possesses a transmittance characteristic to weaken a green color element in the projection light. An image processing module performs the color adjustment processing by changing a look-up table stored in a memory module.
Inventors
- 👤 Keishi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:27
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3179; H04N9/3182
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
134 words
A projector that projects an image, comprising: an image processing module that performs image processing with regard to input original image data; an image generating module that generates an image based on an image data that is provided with the image processing; a projection optical system that projects the image generated by the image generating module using illumination light that includes a specific emission spectrum; and an optical filter that is detachable and weakens at least partial spectral intensity in a wavelength range among the emission spectrum included in the illumination light, which affects the projection of the image, the image processing module performing the specific image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 2
Dependent Claim
134 words
A projector that projects an image, comprising: an image processing module that performs image processing with regard to input original image data; an image generating module that generates an image based on an image data that is provided with the image processing; a projection optical system that projects the image generated by the image generating module using illumination light that includes a specific emission spectrum; and an optical filter that is detachable and weakens at least partial spectral intensity in a wavelength range among the emission spectrum included in the illumination light, which affects the projection of the image, the image processing module performing the specific image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 3
Dependent Claim
14 words
The projector in accordance with claim 1 , the image processing being color adjustment.
Claim 4
Dependent Claim
61 words
The projector in accordance with claim 1 , the wavelength range that affects projection of the image corresponding to red light, green light and blue light, and the optical filter having a highest reducing rate of spectrum strength in a wavelength range corresponding to green light among wavelength ranges corresponding to three colors of red light, green light and blue light.
Claim 5
Dependent Claim
57 words
The projector in accordance with claim 1 , the image processing module including: a memory module that stores parameters used for the image processing depending on the optical filter; a specific information input module that inputs specific information to identify the optical filter; and an image processing controller that selects the parameters depending on the specific information.
Claim 6
Dependent Claim
39 words
The projector in accordance with claim 4 , the optical filter including: a specific information module that stores the specific information, the image processing controller selecting the parameters depending on the specific information obtained from the specific information module.
Claim 7
Dependent Claim
31 words
The projector in accordance with claim 1 , the projection optical system being equipped with a projection lens, and the optical filter being detachable to an exterior of the projection lens.
Claim 8
Dependent Claim
113 words
A projector that projects an image, comprising: an image processing module that performs image processing with regard to input original image data; an image generating module that generates an image based on an image data that is provided with the image processing; a projection optical system that projects the image generated by the image generating module; and an optical component that is detachable from the projection optical system, which enables optical characteristics of the projection optical system to be changed, the image processing module performing a specific image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
Claim 9
Dependent Claim
113 words
A projector that projects an image, comprising: an image processing module that performs image processing with regard to input original image data; an image generating module that generates an image based on an image data that is provided with the image processing; a projection optical system that projects the image generated by the image generating module; and an optical component that is detachable from the projection optical system, which enables optical characteristics of the projection optical system to be changed, the image processing module performing a specific image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
Claim 10
Dependent Claim
28 words
The projector in accordance with claim 7 , the optical component changing the range of projection of the projection optical system, and the image processing being sharpness adjustment.
Claim 11
Dependent Claim
57 words
The projector in accordance with claim 7 , the image processing module including: a memory module that stores parameters used for the image processing depending on the optical component; a specific information input module that inputs specific information to identify the optical component; and an image processing controller that selects the parameters depending on the specific information.
Claim 12
Dependent Claim
39 words
The projector in accordance with claim 9 , the optical component including: a specific information module that stores the specific information, the image processing controller changing the parameter depending on the specific information obtained from the specific information module.
Claim 13
Dependent Claim
108 words
An image processing method that performs image processing with regard to image data projected by a projector that projects an image using illumination light, the illumination light including a predetermined emission spectrum, the image processing method comprising: inputting original image data to be projected; detecting whether an optical filter, which weakens at least partial spectral intensity in wavelength range affecting the image projection among emission spectrums that are included in the illumination light, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 14
Dependent Claim
108 words
An image processing method that performs image processing with regard to image data projected by a projector that projects an image using illumination light, the illumination light including a predetermined emission spectrum, the image processing method comprising: inputting original image data to be projected; detecting whether an optical filter, which weakens at least partial spectral intensity in wavelength range affecting the image projection among emission spectrums that are included in the illumination light, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 15
Dependent Claim
92 words
An image processing method that performs image processing with regard to image data projected by a projector that projects an image, which has an optical component with predetermined optical characteristics, the image processing method comprising: inputting original image data to be projected; detecting whether an optical component, which enables the change of optical characteristics of the projection optical system, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
Claim 16
Dependent Claim
92 words
An image processing method that performs image processing with regard to image data projected by a projector that projects an image, which has an optical component with predetermined optical characteristics, the image processing method comprising: inputting original image data to be projected; detecting whether an optical component, which enables the change of optical characteristics of the projection optical system, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
Claim 17
Dependent Claim
124 words
A recording medium in which a computer program is recorded in a computer readable manner, the computer program performing image processing with regard to image data projected by a projector using illumination light with predetermined emission spectrums, the computer program causing a computer to cause the following steps to be performed: obtaining an input original image data to be projected; detecting whether an optical filter, which weakens at least partial spectral intensity in a wavelength range affecting the image projection among emission spectrums included in the illumination light, is attached to the projector; and performing specific image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 18
Dependent Claim
124 words
A recording medium in which a computer program is recorded in a computer readable manner, the computer program performing image processing with regard to image data projected by a projector using illumination light with predetermined emission spectrums, the computer program causing a computer to cause the following steps to be performed: obtaining an input original image data to be projected; detecting whether an optical filter, which weakens at least partial spectral intensity in a wavelength range affecting the image projection among emission spectrums included in the illumination light, is attached to the projector; and performing specific image processing by selecting predetermined parameters based on a type of the input original image data and changes of the spectral intensity caused by attaching/detaching the optical filter.
Claim 19
Dependent Claim
112 words
A recording medium in which a computer program is recorded in a computer readable manner, the computer program performing image processing with regard to image data projected by a projector, which has a projection optical system with predetermined optical characteristics, the computer program causing a computer to cause the following steps to be performed: obtaining original image data to be projected; detecting whether an optical component, which enables the change of an optical characteristic of the projection optical system, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
Claim 20
Dependent Claim
112 words
A recording medium in which a computer program is recorded in a computer readable manner, the computer program performing image processing with regard to image data projected by a projector, which has a projection optical system with predetermined optical characteristics, the computer program causing a computer to cause the following steps to be performed: obtaining original image data to be projected; detecting whether an optical component, which enables the change of an optical characteristic of the projection optical system, is attached to the projector; and performing image processing by selecting predetermined parameters based on a type of the optical component and changes of the optical characteristics caused by attaching/detaching the optical component.
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