Display control apparatus and method
AssigneeCanon Kabushiki Kaisha
InventorsTsutomu Osaka, Kazutaka Inoguchi
Life of this patent
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Abstract
A display driver instructed by a host computer to perform a display operation uses an object analyzer to determine whether the file of an object to be displayed possesses three-dimensional image data. If the file possesses three-dimensional image data, then the display drive instructs a screen controller to present a three-dimensional display. In response, the screen controller uses an image painting unit and a checkered mask-pattern painting unit to present a three-dimensional display in a display area of the file on a stereoscopic display screen.
Claims46
A display control apparatus comprising:
- display means capable of presenting a mixed display of two- and three-dimensional displays on a display screen;
- determination means for determining whether an object to be presented as a three-dimensional display possesses three-dimensional image data;
- and
- control means for causing a three-dimensional display of the object to be presented by said display means if said determination means has determined that the object possesses three-dimensional image data.
A display control apparatus comprising:
- display means capable of presenting a mixed display of two- and three-dimensional displays, said display means having a display device for sequentially presenting displays, by luminance points of an image based upon a three-dimensional image, on each of a plurality of planes arrayed depthwise of display space, and allowing a user to perform stereoscopic viewing by visual persistence of a collection of the luminance points, a mixed display of two- and three-dimensional displays being presented in a prescribed plane of the display space;
- determination means for determining whether an object to be presented as a three-dimensional display possesses three-dimensional image data;
- and
- control means for causing a three-dimensional display of the object to be presented by said display means if said determination means has determined that the object possesses three-dimensional image data.
A method of controlling a display device having display means capable of presenting a mixed display of two- and three-dimensional displays on a display screen, comprising:
- a determination step of determining whether an object to be presented as a three-dimensional display possesses three-dimensional image data;
- and
- a control step of causing a three-dimensional display of the object to be presented at said display step if said determination step has determined that the object possesses three-dimensional image data.
A computer readable memory storing a control program for controlling a display device capable of presenting a mixed display of two- and three-dimensional displays on a display screen, comprising:
- a code of a determination step of determining whether an object to be presented as a three-dimensional display possesses three-dimensional image data;
- and
- a code of a control step of causing a three-dimensional display of the object to be presented at said display step if said determination step has determined that the object possesses three-dimensional image data.
A display device comprising:
- setting means for setting focal length of a beam to a focal length that has been specified;
- painting means for painting by the laser beam, on a plane corresponding to a position at the focal length set by said setting means, an image corresponding to a three-dimensional image on said plane;
- and
- control means for successively changing over focal lengths specified by said setting means and causing painting of the image by said painting means to be performed on a plane at each focal length.
A display control apparatus comprising:
- display means capable of presenting a three-dimensional display on a screen;
- designating means for designating an object being displayed three-dimensionally by said display means;
- moving means for moving the object that has been designated by said designating means;
- and
- display control means for causing the designated object to be displayed two-dimensionally instead of three-dimensionally while the object is being moved by said moving means.
A display control method comprising:
- a display step of presenting a three-dimensional display on a screen;
- a designating step of designating an object being displayed three-dimensionally at said display step;
- a moving step of moving the object that has been designated at said designating step;
- and
- a display control step of causing the object to be displayed two-dimensionally instead of three-dimensionally while the object is being moved at said moving step.
Dependencies are inferred from the claim text.