Tiltable hemispherical optical projection systems and methods having
constant angular separation of projected pixels
    2.
    发明授权
    Tiltable hemispherical optical projection systems and methods having constant angular separation of projected pixels 失效
    可倾斜的半球形光学投影系统和方法具有投射像素的恒定角度分离

    公开(公告)号:US5762413A

    公开(公告)日:1998-06-09

    申请号:US593699

    申请日:1996-01-29

    IPC分类号: G09F19/18 G03B21/14

    CPC分类号: G09F19/18

    摘要: An array of image pixels is projected into a hemispherical projection having constant angular separation among adjacent image pixels, so that the array of image pixels may be projected onto hemispherical surfaces of varying radii without requiring spatial distortion correction of the array of image pixels. The array of pixels is preferably projected radially from the center of a dome onto a spherical inner surface of the dome. The hemispherical projection may be tilted so that the array of pixels is projected onto one of a plurality of selectable positions on the inner dome surface. The projection system preferably includes at least three collimating lenses having a common ratio of index of refraction to dispersion. The projection system projects an array of image pixels from the image source into a hemispherical surface at a projection angle of at least 160 degrees, notwithstanding that the lenses are separated from the image by a separation distance which is at least six times the image size. Accordingly, hemispherical optical projection systems and methods are provided which can work with domes of many sizes and varying audience configurations, and which do not require spatial correction or color correction of the hemispherical image to be projected.

    摘要翻译: 图像像素阵列被投影到相邻图像像素之间具有恒定角度分离的半球形投影中,使得图像像素阵列可以投影到变化半径的半球表面上,而不需要图像像素阵列的空间失真校正。 像素阵列优选地从圆顶的中心径向地突出到圆顶的球形内表面上。 半球形突起可以被倾斜,使得像素阵列投影到内圆顶表面上的多个可选位置中的一个上。 投影系统优选地包括至少三个准直透镜,其具有折射率与色散的相同比率。 投影系统将图像像素的阵列从图像源投影到至少160度的投影角度的半球形表面,尽管透镜与图像分离的距离至少为图像尺寸的六倍。 因此,提供了半球形光学投影系统和方法,其可以与许多尺寸的圆顶和不同的观众配置一起工作,并且不需要投影半球形图像的空间校正或颜色校正。

    Systems, methods and computer program products for converting image data to nonplanar image data
    3.
    发明授权
    Systems, methods and computer program products for converting image data to nonplanar image data 失效
    用于将图像数据转换为非平面图像数据的系统,方法和计算机程序产品

    公开(公告)号:US06573894B1

    公开(公告)日:2003-06-03

    申请号:US09605588

    申请日:2000-06-28

    IPC分类号: G06T1520

    CPC分类号: G06T15/20

    摘要: Image data is converted to nonplanar image data for display on a nonplanar display, using a planar image graphics computer system, such as an OpenGL® system, which converts image data to planar image data for display on a planar display. A transformation matrix is obtained from the planar image graphics computer system. A plurality of vertices of the image data are multiplied by the obtained transformation matrix, to produce transformed image data. The transformed image data is nonplanarly distortion corrected to produce nonplanar image data. A passthrough transformation matrix, such as an identity matrix, is provided to the planar image graphics computer system. The nonplanar image data is then input to the planar image graphics computer system for further processing. The nonplanar image data which is processed by the planar image graphics computer system is then displayed on a nonplanar display. Accordingly, the image data is distortion corrected and manipulated as necessary, so that the distortion corrected image data can be applied to a standard planar image graphics computer system for image processing.

    摘要翻译: 将图像数据转换为非平面图像数据,以便使用诸如OpenGL系统的平面图像图形计算机系统在非平面显示器上显示,该系统将图像数据转换为平面图像数据以在平面显示器上显示。 从平面图像图形计算机系统获得变换矩阵。 将图像数据的多个顶点乘以所获得的变换矩阵,以产生变换图像数据。 经变换的图像数据被非平面畸变校正以产生非平面图像数据。 诸如单位矩阵的直通变换矩阵被提供给平面图像图形计算机系统。 然后将非平面图像数据输入到平面图像图形计算机系统用于进一步处理。 然后,由平面图像图形计算机系统处理的非平面图像数据显示在非平面显示器上。 因此,根据需要对图像数据进行失真校正和处理,使得失真校正图像数据可以应用于用于图像处理的标准平面图像图形计算机系统。

    Dual polarization optical projection systems and methods

    公开(公告)号:US06231189B1

    公开(公告)日:2001-05-15

    申请号:US08618442

    申请日:1996-03-19

    IPC分类号: G03B2114

    CPC分类号: G09F19/18

    摘要: A dual polarization optical projection system and method combines images from first and second image sources. The first image source includes a first array of image pixels wherein the first image source generates a first pixel image having a first polarization. The second image source includes a second array of image pixels wherein the second image source generates a second pixel image having a second polarization orthogonal to the first polarization. The first pixel image having the first polarization is combined with the second pixel image having the second polarization to form a combined pixel image. Each pixel of the combined pixel image corresponds to a combination of a first pixel from the first array of image pixels having the first polarization and a second pixel from the second array of image pixels having the second polarization.

    Systems, methods and computer program products for converting image data
to nonplanar image data
    5.
    发明授权
    Systems, methods and computer program products for converting image data to nonplanar image data 失效
    用于将图像数据转换为非平面图像数据的系统,方法和计算机程序产品

    公开(公告)号:US6104405A

    公开(公告)日:2000-08-15

    申请号:US806788

    申请日:1997-02-26

    IPC分类号: G06T15/20 H04N3/23

    CPC分类号: G06T15/20

    摘要: Image data is converted to nonplanar image data for display on a nonplanar display, using a planar image graphics computer system, such as an OpenGL.RTM. system, which converts image data to planar image data for display on a planar display. A transformation matrix is obtained from the planar image graphics computer system. A plurality of vertices of the image data are multiplied by the obtained transformation matrix, to produce transformed image data. The transformed image data is nonplanarly distortion corrected to produce nonplanar image data. A passthrough transformation matrix, such as an identity matrix, is provided to the planar image graphics computer system. The nonplanar image data is then input to the planar image graphics computer system for further processing. The nonplanar image data which is processed by the planar image graphics computer system is then displayed on a nonplanar display. Accordingly, the image data is distortion corrected and manipulated as necessary, so that the distortion corrected image data can be applied to a standard planar image graphics computer system for image processing.

    摘要翻译: 使用诸如OpenGL TM系统的平面图像图形计算机系统将图像数据转换为非平面图像数据以在非平面显示器上显示,该平面图像计算机系统将图像数据转换成平面图像数据以在平面显示器上显示。 从平面图像图形计算机系统获得变换矩阵。 将图像数据的多个顶点乘以所获得的变换矩阵,以产生变换图像数据。 经变换的图像数据被非平面畸变校正以产生非平面图像数据。 诸如单位矩阵的直通变换矩阵被提供给平面图像图形计算机系统。 然后将非平面图像数据输入到平面图像图形计算机系统用于进一步处理。 然后,由平面图像图形计算机系统处理的非平面图像数据显示在非平面显示器上。 因此,根据需要对图像数据进行失真校正和处理,使得失真校正图像数据可以应用于用于图像处理的标准平面图像图形计算机系统。