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1. 发明申请

WO1995010822A1 DIRECT RENDERING OF TEXTURED HEIGHT FIELDS 审中-公开
标题翻译：直接渲染纹理高度字段
公开(公告)号：WO1995010822A1
公开(公告)日：1995-04-20
申请号：PCT/US1994009042
申请日：1994-08-09
申请人： EVANS & SUTHERLAND COMPUTER CORPORATION
发明人： EVANS & SUTHERLAND COMPUTER CORPORATION , COSMAN, Michael, A.
IPC分类号： G06T15/10
CPC分类号： G06T17/05 , G06T15/20
摘要： To create a dynamic textured display, images of textured height fields (elevation samples arrayed on a rectangular coordinate grid, as to represent a terrain) are rendered, the system performing an initial pass that resamples the height-field data into a radial form and a subsequent pass using the radial data to create textured, shaded picture elements (pixels) for an instantaneous field of view. Thus, texturing, shading, blending and scan conversion complete the pixel processing to drive a display unit. The system is particularly applicable to the generation of dynamic perspective images of terrain. The process provides pixel-limited textural resolution in the final image with effective antialiasing of internal and horizontal silhouette edges.
摘要翻译：为了创建动态纹理显示，渲染纹理高度场（在矩形坐标网格上排列的高程样本，以表示地形）的图像，系统执行将高度场数据重新采样成径向形式的初始遍历，随后通过使用径向数据来创建用于瞬时视场的纹理，阴影图像元素（像素）。因此，纹理，阴影，混合和扫描转换完成像素处理以驱动显示单元。该系统特别适用于生成地形的动态透视图像。该过程在最终图像中提供了像素限制的纹理分辨率，同时具有内部和水平轮廓边缘的有效抗锯齿。

2. 发明申请

WO1987002159A1 COMPUTER GRAPHICS, PARAMETRIC PATCH PARALLEL SUBDIVISION PROCESSOR 审中-公开
标题翻译：计算机图形，参考平行器并行处理器
公开(公告)号：WO1987002159A1
公开(公告)日：1987-04-09
申请号：PCT/US1986002070
申请日：1986-10-02
申请人： EVANS & SUTHERLAND COMPUTER CORPORATION
发明人： EVANS & SUTHERLAND COMPUTER CORPORATION , HAYES, Alan, Bradford , BROWN, Russell, Allen , JENSEN, Thomas, William , MADSEN, Bruce, Kendall
IPC分类号： G06F15/66
CPC分类号： G06T17/20
摘要： A system for subdividing parametric patches for use in a computer graphics system to develop images. The system utilizes initial data, provided as by an interactive user, to represent control points for an initial patch from which the system rapidly computes control points for subpatches using parallel processors (P1...PN). The disclosed system is recursive so that each level of subdivision leads to greater refinement of an initial patch. In one embodiment, the processors (P1...PN) in the system compute multiple control points, the grouping of processors (P1...PN) exploiting patch symmetrical properties.
摘要翻译：用于细分参数补丁以用于计算机图形系统以开发图像的系统。系统利用由交互式用户提供的初始数据来表示初始补丁的控制点，系统使用并行处理器（P1 ... PN）快速计算子表的控制点。所公开的系统是递归的，使得每个级别的细分导致初始补丁的更大的改进。在一个实施例中，系统中的处理器（P1 ... PN）计算多个控制点，利用补片对称属性对处理器（P1 ... PN）进行分组。

3. 发明申请

WO1997041536A1 COMPUTER GRAPHICS SYSTEM WITH ADAPTIVE PIXEL MULTISAMPLER 审中-公开
标题翻译：具有自适应像素多媒体的计算机图形系统
公开(公告)号：WO1997041536A1
公开(公告)日：1997-11-06
申请号：PCT/US1997007447
申请日：1997-04-30
申请人： EVANS & SUTHERLAND COMPUTER CORPORATION , COSMAN, Michael, A. , DREWS, Michael, D. , WATKINS, Gary, S.
发明人： EVANS & SUTHERLAND COMPUTER CORPORATION
IPC分类号： G06T15/10
CPC分类号： G06T15/503
摘要： An adaptive pixel multisampler (24) generates pixel data for display using an interlocking sub-pixel sampling pattern P and a frame buffer (26) organized as a per-polygon, per-pixel heap (64). The interlocking sampling pattern P provides the advantages of a multi-pixel shaped filter without pixel-to-pixel cross communication and without additional sub-pixels. The per-polygon, per-pixel heap (64) allocates frame buffer memory so that each pixel will have one set of data stored in the frame buffer (26) for every polygon that influences that pixel. This memory allocation scheme can significantly reduce frame buffer memory requirements. The polygon data is blended to properly handle processing of transparent polygons and polygon edges without the degradation of image quality found in conventional computer graphics systems.
摘要翻译：自适应像素多采样器（24）使用联锁子像素采样模式P和组织为每多边形每像素堆（64）的帧缓冲器（26）来生成用于显示的像素数据。互锁采样模式P提供了多像素形滤波器的优点，不需要像素到像素的交叉通信，而不需要额外的子像素。每个多边形每像素堆（64）分配帧缓冲存储器，使得每个像素将对于影响该像素的每个多边形具有存储在帧缓冲器（26）中的一组数据。这种内存分配方案可以显着降低帧缓冲存储器的需求。混合多边形数据以适当地处理透明多边形和多边形边缘，而不会降低传统计算机图形系统中的图像质量。

4. 发明申请

WO1993016440A1 IMAGE TEXTURING SYSTEM HAVING THEME CELLS 审中-公开
标题翻译：具有主体细胞的图像纹理系统
公开(公告)号：WO1993016440A1
公开(公告)日：1993-08-19
申请号：PCT/US1993001428
申请日：1993-02-17
申请人： EVANS & SUTHERLAND COMPUTER CORPORATION
发明人： EVANS & SUTHERLAND COMPUTER CORPORATION , COSMAN, Michael , BROWN, Thomas
IPC分类号： G06F15/72
CPC分类号： G06T17/05 , G06T15/50 , G09B9/301
摘要： An image texturing system utilizes theme cells to facilitate generation of terrain image data area-by-area for a display. The system is effective in flight simulation apparatus, as for training pilots. A memory stores theme maps representing areas of specific terrains, e.g. terrains lying below a specific flight path. The theme maps are indexed on a square grid pattern and have feature identification codes located at each grid corner, e.g. forest, water, etc. A selection device controlled by an image generator selects a current theme map and dissects it cell-by-cell to provide corner-referenced representations of a current theme cell, i.e. the feature identification codes identifying the four corners of the current theme cell and its quartered terrain treatments, i.e. forest, ocean, or the like. A terrain storage device stores a library of terrain treatment pattern arrays that are derived, for example, from photo data of forest, ocean, or the like. A terrain treatment pager controlled by the image generator provides representations of select terrain treatments indicated for the current theme cell and selects the type and sequence of the terrain treatment required for generating the current theme cell. A theme element assembler receives the representations of the current theme cell and the select terrain treatments. Using the data, the cell is specified according to rules to provide picture data representing a plurality of terrain treatments with varying patterns.
摘要翻译：图像纹理系统利用主题单元以便于逐个区域地显示地形图像数据。该系统在飞行模拟装置中有效，对于训练飞行员。存储器存储表示特定地形区域的主题地图，例如位于特定飞行路径下方的地形。主题地图以方格网格图形索引，并具有位于每个格栅角的特征识别码，例如。森林，水等。由图像生成器控制的选择装置选择当前的主题图并逐个细胞解剖以提供当前主题单元的角标表示，即识别四个角的特征标识码当前的主题单元及其四分之一的地形处理，即森林，海洋等。地形存储设备存储例如从森林，海洋等的照片数据导出的地形处理模式阵列库。由图像发生器控制的地形处理寻呼机提供对当前主题单元指示的选择地形处理的表示，并且选择生成当前主题单元所需的地形处理的类型和顺序。主题元素汇编器接收当前主题单元和选择地形处理的表示。使用数据，根据规则指定单元以提供表示具有变化图案的多个地形处理的图像数据。

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