专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07002592B2 Graphical display system and method for applying parametric and non-parametric texture maps to graphical objects 有权
标题翻译：用于将参数和非参数纹理贴图应用于图形对象的图形显示系统和方法
公开(公告)号：US07002592B2
公开(公告)日：2006-02-21
申请号：US10631036
申请日：2003-07-30
申请人： Noah Horton , Bradford A. Ritter
发明人： Noah Horton , Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A graphical display system comprises memory and a texture mapper. The memory stores a parametric texture map (PTM) and a non-parametric texture map (non-PTM). The texture mapper is configured to selectively apply, based on a viewing parameter of a graphical object, the PTM and the non-PTM to a pixel of the graphical object.
摘要翻译：图形显示系统包括存储器和纹理映射器。存储器存储参数纹理图（PTM）和非参数纹理图（非PTM）。纹理映射器被配置为基于图形对象的查看参数将PTM和非PTM选择性地应用于图形对象的像素。

2. 发明授权

US07499059B2 System and method for resampling texture maps 有权
公开(公告)号：US07499059B2
公开(公告)日：2009-03-03
申请号：US11351198
申请日：2006-02-09
申请人： Noah Horton , Bradford A. Ritter
发明人： Noah Horton , Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T11/40
摘要： A system for resampling texture maps in accordance with an exemplary embodiment of the present invention comprises memory and a texture map manager. The stores a first texture map defining a first texture, and the first texture map is based on an image of an object. The texture map manager is configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

3. 发明授权

US07009620B2 System and method for combining parametric texture maps 有权
标题翻译：用于组合参数纹理贴图的系统和方法
公开(公告)号：US07009620B2
公开(公告)日：2006-03-07
申请号：US10630107
申请日：2003-07-30
申请人： Noah Horton , Bradford A. Ritter
发明人： Noah Horton , Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A texture mapping system comprises memory and a texture map manager. The memory stores a first texture map and a parametric texture map. The texture map manager is configured to combine at least a portion of the first texture map and at least a portion of the parametric texture map, and the texture map manager is configured to determine a texture map type for the first texture map and a texture map type for the parametric texture map and to perform a prioritization of the texture map portions based on the determined texture map types. The texture map manager is further configured to select, for conversion, one of the texture map portions based on the prioritization and to convert the selected texture map portion into a form corresponding to a form of the non-selected texture map portion.
摘要翻译：纹理映射系统包括存储器和纹理映射管理器。存储器存储第一纹理贴图和参数纹理贴图。纹理图管理器被配置为组合第一纹理图的至少一部分和参数纹理图的至少一部分，并且纹理图管理器被配置为确定第一纹理贴图和纹理贴图的纹理贴图类型对于参数纹理图类型，并且基于所确定的纹理图类型来执行纹理映射部分的优先级。纹理图管理器还被配置为基于优先级来选择纹理映射部分中的一个，并且将所选择的纹理映射部分转换成与未选择的纹理映射部分的形式相对应的形式。

4. 发明授权

US07502030B2 System and method for resampling texture maps 有权
标题翻译：用于重新采样纹理贴图的系统和方法
公开(公告)号：US07502030B2
公开(公告)日：2009-03-10
申请号：US11351211
申请日：2006-02-09
申请人： Noah Horton , Bradford A. Ritter
发明人： Noah Horton , Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T11/40
摘要： A system for resampling texture maps in accordance with an exemplary embodiment of the present invention comprises memory and a texture map manager. The stores a first texture map defining a first texture, and the first texture map is based on an image of an object. The texture map manager is configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.
摘要翻译：根据本发明的示例性实施例的用于重新采样纹理贴图的系统包括存储器和纹理映射管理器。存储定义第一纹理的第一纹理贴图，并且第一纹理贴图基于对象的图像。纹理图管理器被配置为对第一纹理图进行重新采样，使得纹理贴图管理器对第一纹理贴图的重采样补偿对象的表面失真。

5. 发明授权

US07030884B2 System and method for resampling texture maps 有权
公开(公告)号：US07030884B2
公开(公告)日：2006-04-18
申请号：US10365975
申请日：2003-02-13
申请人： Noah Horton , Bradford A. Ritter
发明人： Noah Horton , Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T11/40
摘要： A system for resampling texture maps in accordance with an exemplary embodiment of the present invention comprises memory and a texture map manager. The stores a first texture map defining a first texture, and the first texture map is based on an image of an object. The texture map manager is configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

6. 发明授权

US06753875B2 System and method for rendering a texture map utilizing an illumination modulation value 失效
标题翻译：使用照明调制值渲染纹理图的系统和方法
公开(公告)号：US06753875B2
公开(公告)日：2004-06-22
申请号：US09921477
申请日：2001-08-03
申请人： Bradford A. Ritter
发明人： Bradford A. Ritter
IPC分类号： G09G500
CPC分类号： G06T15/04 , G06T15/506
摘要： In one embodiment, the present invention is directed to a system for rendering a pixel of a digital image. The system may comprise a texture map data structure representing a texture map of a plurality of texels; the texture map structure comprising a plurality of coefficients for each texel of the texture map; the plurality of coefficients defining lighting characteristics of the respective texel in response to illumination in a plane. The system may further comprise a modulation data structure; the modulation data structure defining a range of values associated with an illumination vector. Additionally, the system may comprise a rendering algorithm; the rendering algorithm operable to calculate a texel display value using the texture map data structure; the rendering algorithm operable to determine an illumination modulation value from the modulation data structure; and the rendering algorithm being operable to multiply the texel display value by the illumination modulation value to render a pixel.
摘要翻译：在一个实施例中，本发明涉及用于渲染数字图像的像素的系统。该系统可以包括表示多个纹素的纹理图的纹理映射数据结构; 所述纹理图结构包括用于纹理图的每个纹素的多个系数; 所述多个系数响应于平面中的照明来定义相应纹素的照明特性。该系统还可以包括调制数据结构; 所述调制数据结构定义与照明矢量相关联的值的范围。另外，该系统可以包括渲染算法; 所述渲染算法可用于使用所述纹理图数据结构来计算纹理显示值; 所述渲染算法可操作以从所述调制数据结构确定照明调制值; 并且所述渲染算法可操作以将纹理像素显示值乘以照明调制值以渲染像素。

7. 发明授权

US06518968B1 Method and apparatus for performing H-space bump mapping suitable for implementation with H-space lighting in a graphics pipeline of a computer graphics display system 有权
标题翻译：用于在计算机图形显示系统的图形管线中执行适于实施H空间照明的H空间凹凸贴图的方法和装置
公开(公告)号：US06518968B1
公开(公告)日：2003-02-11
申请号：US09573059
申请日：2000-05-17
申请人： Bradford A. Ritter , Ross Cunniff
发明人： Bradford A. Ritter , Ross Cunniff
IPC分类号： G06T1706
CPC分类号： G06T15/04
摘要： The present invention provides a method and apparatus for performing H-space bump mapping. The apparatus of the present invention is a fragment processor of a computer graphics display system. The method of the present invention is performed by the fragment processor. In accordance with the method of the present invention, for each vertex of each polygon being processed, the fragment processor calculates both diffuse and specular lighting terms. Then, for each fragment within the polygon defined by the vertices, the fragment processor interpolates the specular and diffuse lighting terms to obtain diffuse and specular lighting terms for each fragment. If bump mapping has been enabled, the fragment processor adds perturbations to the diffuse and specular lighting terms to generate the bump mapping. Preferably, prior to performing the H-space bump mapping algorithm, texture coordinate gradient vectors are calculated for the image to be rendered. During the H-space bump mapping algorithm of the present invention, the H-space reference vectors are aligned with the texture coordinate gradient vectors. The specular and diffuse lighting terms are calculated using the H-space reference vectors. Since the H-space reference vectors are aligned with the texture coordinate vectors, it is not necessary to transform the specular and diffuse lighting terms into the coordinate system associated with the texture coordinates of the bump map on a per fragment (i.e., per pixel basis). Once the H-space reference vectors have been aligned with the texture coordinate gradient vectors, the algorithm proceeds in the aforementioned manner.
摘要翻译：本发明提供一种用于执行H空间凹凸映射的方法和装置。本发明的装置是计算机图形显示系统的片段处理器。本发明的方法由片段处理器执行。根据本发明的方法，对于正在处理的每个多边形的每个顶点，片段处理器计算漫反射和镜面光照项。然后，对于由顶点定义的多边形内的每个片段，片段处理器内插镜面和漫射照明项，以获得每个片段的漫反射和镜面照明术语。如果已经启用了凹凸贴图，片段处理器将漫反射和镜面照明项添加到生成凹凸贴图中。优选地，在执行H空间凹凸贴图算法之前，为要渲染的图像计算纹理坐标梯度向量。在本发明的H空间凸点映射算法期间，H空间参考矢量与纹理坐标梯度矢量对齐。使用H空间参考矢量计算镜面和漫射照明项。由于H空间参考向量与纹理坐标向量对齐，因此不需要在每个片段（即，每像素基础上）将镜面和漫射照明项变换成与凹凸贴图的纹理坐标相关联的坐标系）。一旦H空间参考向量已经与纹理坐标梯度向量对齐，则算法以上述方式进行。

8. 发明授权

US07623730B2 System and method that compensate for rotations of textures defined by parametric texture maps 有权
标题翻译：补偿由参数纹理图定义的纹理旋转的系统和方法
公开(公告)号：US07623730B2
公开(公告)日：2009-11-24
申请号：US10630452
申请日：2003-07-30
申请人： Bradford A. Ritter , Ross Cunniff
发明人： Bradford A. Ritter , Ross Cunniff
IPC分类号： G06K9/36 , G09G5/00
CPC分类号： G06T15/04
摘要： A texture mapping system comprises memory and a texture map manager. The memory stores a parametric texture map, and the parametric texture map has a plurality of texels. Each of the texels defines a variable expression that defines a luminosity parameter as a function of light direction. The texture map manager is configured to perform a rotation of a texture defined by the parametric texture map, and the texture map manager is further configured to adjust the variable expression of at least one of the texels to compensate for the rotation.
摘要翻译：纹理映射系统包括存储器和纹理映射管理器。存储器存储参数纹理图，并且参数纹理贴图具有多个纹素。每个纹素定义一个变量表达式，它将光度参数定义为光方向的函数。纹理映射管理器被配置为执行由参数纹理映射定义的纹理的旋转，并且纹理映射管理器还被配置为调整纹素中的至少一个的变量表达以补偿旋转。

9. 发明授权

US06947055B2 System and method for synthesis of parametric texture map textures 有权
标题翻译：用于合成参数纹理贴图纹理的系统和方法
公开(公告)号：US06947055B2
公开(公告)日：2005-09-20
申请号：US10683196
申请日：2003-10-10
申请人： Bradford A. Ritter
发明人： Bradford A. Ritter
IPC分类号： G06T11/00 , G09G5/00
CPC分类号： G06T11/001
摘要： In one embodiment, the present invention is directed to method for assigning coefficients to a texel of a parametric texture map (PTM) texture. The method may comprise the steps of: generating a random PTM matrix of a desired size, the random PTM matrix comprising texels possessing random valued coefficients; selecting a texel from the random PTM matrix; determining a first neighborhood of the texel from the random PTM matrix; comparing the first neighborhood to neighborhoods of a sample PTM texture to determine an optimal texel of the sample PTM texture; and assigning PTM coefficients of the optimal texel to the texel from the random PTM matrix.
摘要翻译：在一个实施例中，本发明涉及用于将参数分配给参数纹理图（PTM）纹理的纹素的方法。该方法可以包括以下步骤：产生所需大小的随机PTM矩阵，所述随机PTM矩阵包含具有随机值系数的纹素; 从随机PTM矩阵中选择一个纹素; 从所述随机PTM矩阵确定所述纹素的第一邻域; 将第一邻域与样本PTM纹理的邻域进行比较，以确定样本PTM纹理的最优纹理; 并且从随机PTM矩阵将最佳纹素的PTM系数分配给纹理。

10. 发明授权

US07136072B2 System and method for performing texture synthesis 有权
公开(公告)号：US07136072B2
公开(公告)日：2006-11-14
申请号：US09921464
申请日：2001-08-03
申请人： Bradford A. Ritter
发明人： Bradford A. Ritter
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： In one embodiment, a method for synthesizing a texture of a desired size from a sample texture is provided. The method comprises the steps of generating a matrix of the desired size, and providing values to the matrix. The values include random values and at least a portion of the values represents a desired structure according to which graphical features of a synthesized texture are to substantially conform. The method further comprises executing a texture synthesis process that utilizes the matrix to generate a synthesized texture of the desired size having graphical features arranged therein substantially in conformance with the desired structure.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式