Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
1998-07-14
2001-05-01
Shalwala, Bipin (Department: 2778)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S182000, C345S182000, C345S111000, C348S042000, C348S051000
Reexamination Certificate
active
06225979
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cursor display method and apparatus therefor, and a computer-readable recording medium in which a cursor display program is recorded. More particularly, the present invention relates to a cursor display method and an apparatus for providing a display of a cursor in a stereoscopic image display region of the display so as to perceive the cursor as a stereoscopic image, and a computer-readable recording medium in which a cursor display program is recorded.
2. Description of the Background Art
FIG. 9
is a diagram for describing a cursor display manner in a conventional binocular stereoscopic display. In the conventional usage of a binocular stereoscopic display connected to a computer for displaying an image L for the left eye and an image R for the right eye constituting a stereoscopic image adjacent in the horizontal direction (or in the vertical direction), there was a disadvantage that the cursor can be viewed by only one eye so that a stereoscopic cursor could not be perceived since only one cursor is provided on the display as shown in FIG.
9
.
An approach has been proposed to solve this disadvantage, as disclosed in, for example, Japanese Patent Laying-Open No. 8-329275. However, this publication teaches only the technique for a stereoscopic display of a cursor provided on a binocular stereoscopic display of the computer. It is silent on the switching display between a stereoscopic display and a plane display of a cursor on the same display.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a cursor display method and apparatus that can switch the display of a cursor to either a stereoscopic image or a plane image corresponding to the display region in a display that includes at least either a stereoscopic image display region or a plane image display region, and a recording medium in which a cursor display program is recorded and that can be read out by a computer.
According to an aspect of the present invention, a cursor display method provides a display of a cursor in a display that has at least either a stereoscopic image display region or a plane image display region. This cursor display method includes the steps of reading the position of a cursor in a display that is designated by input, determining whether the read out cursor position is inside or outside the stereoscopic image display region, displaying an image for a stereoscopic cursor image according to the read out cursor position in response to the determination that the position is inside the stereoscopic image display region, and displaying a plane cursor image according to the read out cursor position in response to determination that the position is outside the stereoscopic image display region.
When determination is made of which region the read out cursor position is present, i.e., in the stereoscopic image display region or in the plane image display region, the stereoscopic cursor display step or the plane cursor display step is effected to provide either a stereoscopic image or plane image of the cursor according to the read cursor position.
Accordingly, the user can always identify the position of the cursor with both eyes in a display that has at least one of a stereoscopic image display region and plane image display region, independent of the display region. Therefore, proper positioning of the cursor is allowed.
When a plurality of different plane images with parallax are displayed in alignment in a stereoscopic image display region of the display, the stereoscopic cursor display step provides a plane cursor image at a position that is determined corresponding to the read out cursor position for each of the plurality of different plane images. Therefore, the position of the cursor can always be identified with both eyes independent of the display format of the stereoscopic image display region.
The position determined corresponding to the read out cursor position is adjusted for each of the plurality of different plane images according to the degree of parallax. Accordingly, the cursor display position in each plane image in the stereoscopic image display region can be adjusted according to the degree of parallax. Therefore, the relationship of the cursor position between each of the plane images can be controlled to allow the cursor to be moved in the screen direction of depth (the direction farther away from the front panel side) in the stereoscopic image display region.
The image displayed in the stereoscopic image display region can be perceived as a stereoscopic image without any special eyeglasses. Therefore, an image including the cursor displayed in the stereoscopic image display region of the display can be perceived without using any special eyeglasses.
An image displayed in the stereoscopic image display region of the above display can be perceived as a stereoscopic image using special eyeglasses. Therefore, an image including the cursor displayed in the stereoscopic display region can be perceived as a stereoscopic image using special eyeglasses.
A cursor display apparatus according to an aspect of the present invention is directed to display a cursor in a display having at least either a stereoscopic image display region or a plane image display region. The apparatus includes a cursor position reader for reading out the position of a cursor on a display that is designated, a position determination unit for determining whether the read out cursor position is inside or outside the stereoscopic display region, a cursor display unit for providing an image display for a stereoscopic cursor image according to the read out cursor position in response to the determination by the position determination unit that the position is within the region, and a plane cursor display unit for displaying a plane cursor image according to the read out cursor position in response to the determination by the position determination unit that the cursor position is outside the region.
Therefore, when determination is made by the position determination unit that the cursor position read out by the cursor position reader is in either the stereoscopic image display region or the plane image display region on the same display, either the stereoscopic cursor display unit or the plane cursor display unit displays the cursor in a stereoscopic or plane image.
In a display having at least either a stereoscopic image display region or a plane image display region, the user can always identify the cursor position with both eyes independent of the display region. Therefore, proper positioning of the cursor is allowed.
When a plurality of different plane images with parallax are displayed in alignment in the stereoscopic image display region of the display in the cursor display apparatus, the stereoscopic cursor display unit displays a plane cursor image at the position determined corresponding to the read out cursor position for each of the plurality of different plane images. Therefore, the position of the cursor can be always identified with both eyes independent of the display format of the stereoscopic image display region.
The position determined corresponding to the read out cursor position is adjusted for each of the plurality of different plane images according to the degree of parallax.
Since the cursor display position in each plane image in the stereoscopic image display region can be adjusted according to the degree of parallax, the relationship of the cursor position between each plane image can be controlled so that the cursor can be moved in the screen direction of depth in the stereoscopic image display region.
An image displayed in the stereoscopic image display region can be perceived as a stereoscopic image without any special eyeglasses.
An image displayed in the stereoscopic image display region can be perceived as the stereoscopic image using special eyeglasses.
In a computer-readable recording medium in which a cursor display program is recorded according to an aspect of the present
Shiono Kazuhiko
Taima Kenji
Arent Fox Kintner & Plotkin & Kahn, PLLC
Kovalick Vincent E.
Sanyo Electric Co,. Ltd.
Shalwala Bipin
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