Projector apparatus, projection method, and recording medium storing projection method
First Claim
1. A projector apparatus comprising:
- a projection unit which projects an image corresponding to an input image signal;
an instruction unit which issues an instruction for performing keystone correction;
a distance survey unit which surveys a distance between the projector apparatus and each of a plurality of positions on the image projected by the projection unit, in accordance with an instruction from the instruction unit;
a keystone correction unit which performs keystone correction of the image projected by the projection unit, in a manner that the image becomes a rectangle having an appropriate aspect ratio based on distances obtained by the distance survey unit; and
a focus control unit which brings the image projected by the projection image into focus, at a center position of the image after being keystone-corrected by the keystone correction unit.
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Accused Products
Abstract
A projector apparatus is disclosed which has a projection unit which projects image corresponding to an input image signal, an instruction unit which issues an instruction for performing keystone correction, a distance survey unit which surveys distances between the projector apparatus and a plurality of positions on the image projected by the projection unit in accordance with an instruction from the instruction unit, and a focus control unit which performs keystone correction of the image projected by the projection unit in a manner that the image becomes a rectangle having an appropriate aspect ratio based on the distances obtained by the distance survey unit, while bringing the image projected by the projection unit into focus at the center position of the image after being keystone-corrected.
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Citations
14 Claims
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1. A projector apparatus comprising:
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a projection unit which projects an image corresponding to an input image signal;
an instruction unit which issues an instruction for performing keystone correction;
a distance survey unit which surveys a distance between the projector apparatus and each of a plurality of positions on the image projected by the projection unit, in accordance with an instruction from the instruction unit;
a keystone correction unit which performs keystone correction of the image projected by the projection unit, in a manner that the image becomes a rectangle having an appropriate aspect ratio based on distances obtained by the distance survey unit; and
a focus control unit which brings the image projected by the projection image into focus, at a center position of the image after being keystone-corrected by the keystone correction unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A projection method comprising:
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a projecting step of projecting an image corresponding to an input image signal;
an instructing step of issuing an instruction for performing keystone correction;
a distance surveying step of surveying distances between a projector apparatus and a plurality of positions on the image projected in the projecting step, in accordance with an instruction in the instructing step;
a keystone correcting step of performing keystone correction of the image projected in the projecting step, in a manner that the image becomes a rectangle having an appropriate aspect ratio, based on the distances obtained in the distance surveying step; and
a focus controlling step of bringing the image projected in the projecting step into focus, at a center position of the image after being keystone-corrected in the keystone correcting step. - View Dependent Claims (8, 9, 10)
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11. A recording medium storing a projection method which comprises:
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a projecting step of projecting an image corresponding to an input image signal;
an instructing step of issuing an instruction for performing keystone correction;
a distance surveying step of surveying distances between a projector apparatus and a plurality of positions on the image projected in the projecting step, in accordance with an instruction in the instructing step;
a keystone correcting step of performing keystone correction of the image projected in the projecting step, in a manner that the image becomes a rectangle having an appropriate aspect ratio, based on the distances obtained in the distance surveying step; and
a focus controlling step of bringing the image projected in the projecting step into focus, at a center position of the image after being keystone-corrected in the keystone correcting step. - View Dependent Claims (12, 13, 14)
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Specification