METHOD FOR IMPROVING THREE-DIMENSIONAL VIRTUAL REALITY

    公开(公告)号:JPH11134084A

    公开(公告)日:1999-05-21

    申请号:JP22012198

    申请日:1998-08-04

    Abstract: PROBLEM TO BE SOLVED: To provide techniques concerning the integration of computer graphics and video by changing the expression of an object from a video expression to an expression modeled as computer graphics, and receiving the selection instruction of the object. SOLUTION: Concerning a current video frame to be displayed on a video screen required to start pop-up, the presence/absence of an object is discriminated (step 405). A display engine routine of computer graphics is activated corresponding to each determined object (step 407). The location on a display screen is determined corresponding to each object for which the display engine routine of computer graphics is executed (step 409). Then, each object within the view range of a viewer is rendered (step 411).

    DISPLAY TECHNIQUES FOR THREE-DIMENSIONAL VIRTUAL REALITY

    公开(公告)号:CA2270734C

    公开(公告)日:2002-04-09

    申请号:CA2270734

    申请日:1999-04-29

    Abstract: A limitation of a three-dimensional world in which objects in the distan ce may be represented in only two dimensions as a video on a screen occurs when a computer graphic object represented by computer graphics, e.g., in front of, to the side, above, or below the video screen, undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, because such an object would disappear from view by the viewer. This limitation is overcome by having by determinin g when a computer graphic object undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is withi n the field represented by the video, and representing such an object as computer graphi cs in front of the screen to which at least one perspective transformation is applied, the perspective transformation being at least a function of the position at whic h the object is actually located.

    Display composition technique
    3.
    发明专利

    公开(公告)号:GB2328103B

    公开(公告)日:1999-07-28

    申请号:GB9816369

    申请日:1998-07-28

    Abstract: A mix of computer graphics and video is employed to display images, and more particularly, the ratio of computer graphics to video is adjusted as a function of the available processing and transport capacity. The function for adjusting the ratio of computer graphics to video may also be dependent on the motion of the viewer's viewpoint.

    Display techniques for three dimensional virtual reality

    公开(公告)号:GB2328101B

    公开(公告)日:1999-06-30

    申请号:GB9816367

    申请日:1998-07-28

    Abstract: A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen occurs when a computer graphic object represented by computer graphics, e.g., in front of, to the side, above, or below the video screen, undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, because such an object would disappear from view by the viewer. This limitation is overcome by having such an object be represented as video on the screen, rather than computer graphics. Thus, the computer graphics object "goes into the video" as video and remains visible to a viewer in front of the video screen, rather than becoming invisible because it is blocked from view by the video screen if it were to be generated at its proper location using computer graphic techniques.

    Display technique for three dimensional virtual reality

    公开(公告)号:AU752518B2

    公开(公告)日:2002-09-19

    申请号:AU3584299

    申请日:1999-06-23

    Abstract: A limitation of a three dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen is that when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location which is represented by computer graphics, namely, any portion of the object that is no longer on the video screen disappears. To overcome this limitation, when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video on the video screen as currently configured, i.e., shaped and sized, the configuration of the screen is changed so that the object can continue to be displayed as video. The size and/or shape of the video screen is changed. For example, the video screen may be increased in overall size, or it may "grow" a specific appendage screen on which the object is displayed as video. If an additional appendage screen is "grown", it need not be contiguous with the screen as previously configured. Such appendage screens may sized, shaped, and located so that, the video object continues to be visible rather than becoming invisible because it is no longer displayable within the video screen.

    Display techniques for three dimensional virtual reality

    公开(公告)号:AU742529B2

    公开(公告)日:2002-01-03

    申请号:AU7869698

    申请日:1998-08-03

    Abstract: A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen is that when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, namely, any portion of the object that is no longer on the video screen disappears. To overcome this limitation, when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, such an object, or portion thereof, is made to continue to be visible to the user by representing it at the foreground location to which its trajectory was carrying it using computer graphic techniques, rather than video. Thus, the video object "pops" out of the video and becomes visible, e.g., in front of, or to the side of, the video screen, rather than becoming invisible because it is no longer on the video screen.

    Display techniques for three dimensional virtual reality

    公开(公告)号:AU7869698A

    公开(公告)日:1999-02-11

    申请号:AU7869698

    申请日:1998-08-03

    Abstract: A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen is that when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, namely, any portion of the object that is no longer on the video screen disappears. To overcome this limitation, when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, such an object, or portion thereof, is made to continue to be visible to the user by representing it at the foreground location to which its trajectory was carrying it using computer graphic techniques, rather than video. Thus, the video object "pops" out of the video and becomes visible, e.g., in front of, or to the side of, the video screen, rather than becoming invisible because it is no longer on the video screen.

    THREE DIMENSIONAL VIRTUAL REALITY ENHANCEMENT TECHNIQUES

    公开(公告)号:CA2242170A1

    公开(公告)日:1999-02-04

    申请号:CA2242170

    申请日:1998-06-30

    Abstract: For a world that has a portion of the world distant from the point of view of th e user represented in only two dimensions as a video on a video screen, when an ob ject on the video screen undergoes a trajectory that takes at least a portion of it to a location in the world that is not represented by the video but instead is a location in the world that is represented by computer graphics, in addition to being able to continue to see s uch an object when it is rendered as computer graphics in the computer graphics part of the world, i.e., popped out from the video, one is able to interact with such an obj ect. Thus, an object which pops out from a video into the computer graphics part of the wor ld may be "investigated" by a viewer of the world. For example, the user could enter a store which popped out of the video, and engage in virtual shopping therein. The parti cular store which is actually entered may be customized on a per user basis, e.g., as a function of geography. When the proprietor of a virtual store, or his representative, e.g ., electronic agent, detects the avatar of one or more persons in the vicinity of the avatar o f a store for which such proprietor's store corresponds to the virtual store for such passing persons, a message may be transmitted to such passing persons.

    DISPLAY TECHNIQUES FOR THREE DIMENSIONAL VIRTUAL REALITY

    公开(公告)号:CA2242150C

    公开(公告)日:2005-09-06

    申请号:CA2242150

    申请日:1998-06-30

    Abstract: A limitation of a three-dimensional world in which objects in the distance m ay be represented in only two dimensions as a video on a screen is that when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, namely, any portion of the object that is no longer on the video screen disappears. To overcome this limitation, when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location in the foreground which is represented by computer graphics, such an object, or portion thereo f, is made to continue to be visible to the user by representing it at the foreground location to which its trajectory was carrying it using computer graphic techniques, rather than video. Thus, the video object "pops" out of the video and becomes visible, e.g., in front of, or to the side of, the video screen, rather than becoming invisible because it is no longer on the video screen.

    THREE DIMENSIONAL VIRTUAL REALITY ENHANCEMENT TECHNIQUES

    公开(公告)号:CA2242170C

    公开(公告)日:2002-11-05

    申请号:CA2242170

    申请日:1998-06-30

    Abstract: For a world that has a portion of the world distant from the point of view o f the user represented in only two dimensions as a video on a video screen, when a n object on the video screen undergoes a trajectory that takes at least a portion of it to a location in the world that is not represented by the video but instead is a location in the world that is represented by computer graphics, in addition to being able to continue to s ee such an object when it is rendered as computer graphics in the computer graphics par t of the world, i.e., popped out from the video, one is able to interact with such an object. Thus, an object which pops out from a video into the computer graphics part of the world may be "investigated" by a viewer of the world. For example, the user could ente r a store which popped out of the video, and engage in virtual shopping therein. The p articular store which is actually entered may be customized on a per user basis, e.g., as a function of geography. When the proprietor of a virtual store, or his representative, e.g., electronic agent, detects the avatar of one or more persons in the vicinity of the avat ar of a store for which such proprietor's store corresponds to the virtual store for such pass ing persons, a message may be transmitted to such passing persons.

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