Lighting device, lighting system, and program
First Claim
Patent Images
1. A lighting device, comprising:
- a receiving circuit which obtains a first image including a subject;
a memory which obtains depth information indicating a depth of the subject in the first image;
an image processor which converts the first image obtained, into a second image in which the subject in the first image is represented by gradation of a single color, the gradation being different according to the depth indicated by the depth information;
a light source;
a light modulator which modulates light emitted from the light source, according to the second image; and
a light emitter which illuminates a room by emitting the modulated light,wherein the image processorcalculates a proportion of the subject in an entirety of the second image, andwhen the proportion calculated is greater than a predetermined value, removes a portion of the subject in the second image by assigning a color of a background that is a portion other than the subject in the second image to the portion of the subject in the second image.
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Abstract
A lighting device includes: a receiving circuit which obtains a first image including a subject; a memory which obtains depth information indicating a depth of the subject in the first image; an image processor which converts the first image obtained, into a second image in which the subject in the first image is represented by gradation of a single color, the gradation being different according to the depth indicated by the depth information; a light source; a light modulator which modulates light emitted from the light source, according to the second image; and a light emitter which emits the modulated light.
20 Citations
11 Claims
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1. A lighting device, comprising:
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a receiving circuit which obtains a first image including a subject; a memory which obtains depth information indicating a depth of the subject in the first image; an image processor which converts the first image obtained, into a second image in which the subject in the first image is represented by gradation of a single color, the gradation being different according to the depth indicated by the depth information; a light source; a light modulator which modulates light emitted from the light source, according to the second image; and a light emitter which illuminates a room by emitting the modulated light, wherein the image processor calculates a proportion of the subject in an entirety of the second image, and when the proportion calculated is greater than a predetermined value, removes a portion of the subject in the second image by assigning a color of a background that is a portion other than the subject in the second image to the portion of the subject in the second image. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11)
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6. A lighting device, comprising:
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a receiving circuit which obtains a first image including a subject; a memory which obtains depth information indicating a depth of the subject in the first image; an image processor which converts the first image obtained, into a second image in which the subject in the first image is represented by gradation of a single color, the gradation being different according to the depth indicted by the depth information; a light source; a light modulator which modulates light emitted from the light source, according to the second image; and a light emitter which emits the modulated light, wherein the image processor divides the subject in the first image into hierarchical levels by a predetermined depth, based on the depth information, converts the first image into the second image in which the gradation of the single color of the subject in the first image differs according to the hierarchical levels, calculates a proportion of the subject in an entirety of the second image, and when the proportion calculated is greater than a predetermined value, removes a portion of the subject in the second image by assigning a color of a background that is a portion other than the subject in the second image to the portion of the subject in the second image.
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Specification