IMAGE TRANSFORMATION METHOD AND APPARATUS, IMAGE RECOGNITION APPARATUS, ROBOT CONTROL APPARATUS AND IMAGE PROJECTION APPARATUS
First Claim
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1. An image transformation apparatus, comprising:
- a coordinate transformation unit configured to make a transformation to transform a projected image that is projected on a screen by an image projection apparatus having an optical axis tilted by an arbitrary angle with respect to the screen, into an image substantially equivalent to an image that is projected on the screen in a state where the optical axis of the image projection apparatus is perpendicular to the screen; and
a luminance value substituting unit configured to substitute luminance values of coordinates before the transformation as luminance values corresponding to coordinate values after the transformation.
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Abstract
An image transformation method to be implemented by a computer carries out an image transformation process, by transforming a picked up image that is picked up by a pickup unit having an optical axis tilted by an arbitrary angle with respect to a reference plane into an image substantially equivalent to a picked up image that is picked up by the pickup unit in a state where the optical axis of the pickup unit is perpendicular to the reference plane, and substituting luminance values of coordinates before the transformation as luminance values corresponding to coordinate values after the transformation.
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Citations
6 Claims
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1. An image transformation apparatus, comprising:
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a coordinate transformation unit configured to make a transformation to transform a projected image that is projected on a screen by an image projection apparatus having an optical axis tilted by an arbitrary angle with respect to the screen, into an image substantially equivalent to an image that is projected on the screen in a state where the optical axis of the image projection apparatus is perpendicular to the screen; and a luminance value substituting unit configured to substitute luminance values of coordinates before the transformation as luminance values corresponding to coordinate values after the transformation. - View Dependent Claims (2, 3, 4)
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5. An image transformation apparatus, comprising:
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a coordinate transformation unit configured to make a transformation to transform a projected image of an object that is projected on a screen by an image projection apparatus having an optical axis tilted by an arbitrary angle with respect to the screen, with the image projection apparatus or the object tilted by an angle with respect to the screen, into an image substantially equivalent to an image that is projected on the screen in a state where the optical axis of the image projection apparatus is perpendicular to the screen; and a luminance value substituting unit configured to substitute luminance values of coordinates before the transformation as luminance values corresponding to coordinate values after the transformation. - View Dependent Claims (6)
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Specification