-
公开(公告)号：EP1768059A3
公开(公告)日：2007-06-27
申请号：EP06126695.3
申请日：2003-06-02
摘要： A pixel is textured by storing a first texel reference value, a second texel reference value, and a texel value operative to map a texel to a 3-tuple of the first texel reference value, the second texel reference value and a third texel reference value to thereby represent a block of texels. A pixel value for the pixel is generated from the stored texel values and the pixel is displayed responsive to the generated pixel value. In some embodiments, respective pluralities of texel reference values and texel values that map thereto are stored for respective ones of a plurality of overlapping blocks of texels. In further embodiments, a first mipmap value for a pixel is bilinearly interpolated from the retrieved texel values for the set of nearest neighbor texels. A second mipmap value for the pixel is generated by averaging the retrieved texel values for the set of nearest neighbor texels. A pixel value for the pixel is generated by interpolating between the first and second mipmap values. The present inventin may be embodied as methods, apparatus and computer program products.
-
公开(公告)号：EP1431920B1
公开(公告)日：2009-03-11
申请号：EP02028537.5
申请日：2002-12-20
IPC分类号： G06T11/00
CPC分类号： G06T11/001
-
公开(公告)号：EP1768059A8
公开(公告)日：2007-06-20
申请号：EP06126695.3
申请日：2003-06-02
IPC分类号： G06T1/60
摘要： A pixel is textured by storing a first texel reference value, a second texel reference value, and a texel value operative to map a texel to a 3-tuple of the first texel reference value, the second texel reference value and a third texel reference value to thereby represent a block of texels. A pixel value for the pixel is generated from the stored texel values and the pixel is displayed responsive to the generated pixel value. In some embodiments, respective pluralities of texel reference values and texel values that map thereto are stored for respective ones of a plurality of overlapping blocks of texels. In further embodiments, a first mipmap value for a pixel is bilinearly interpolated from the retrieved texel values for the set of nearest neighbor texels. A second mipmap value for the pixel is generated by averaging the retrieved texel values for the set of nearest neighbor texels. A pixel value for the pixel is generated by interpolating between the first and second mipmap values. The present inventin may be embodied as methods, apparatus and computer program products.
-
公开(公告)号：EP1768059B1
公开(公告)日：2009-08-05
申请号：EP06126695.3
申请日：2003-06-02
-
公开(公告)号：EP1431920A1
公开(公告)日：2004-06-23
申请号：EP02028537.5
申请日：2002-12-20
IPC分类号： G06T11/00
CPC分类号： G06T11/001
摘要： A sampling pattern covering an array of pixels for use in an anti-aliasing system is disclosed where each pixel has a pattern of sample points at the edges of the pixel. Moreover is the sample point pattern of each pixel a mirror image and different from the pattern of a directly neighboring pixel.
摘要翻译： 公开了覆盖用于抗混叠系统的像素阵列的采样图案，其中每个像素具有像素边缘处的采样点的图案。 此外，每个像素的采样点图案是镜像并且不同于直接相邻像素的图案。
-
公开(公告)号：EP2081155B1
公开(公告)日：2011-11-16
申请号：EP08164269.6
申请日：2008-09-12
CPC分类号： G06T9/00 , H04N19/11 , H04N19/14 , H04N19/176 , H04N19/426 , H04N19/46 , H04N19/593 , H04N19/90 , H04N19/96
摘要： A pixel block (300) is compressed by sub-sampling at least a portion of the pixels (310) into subblocks (320,330). Predictions are determined for the property values of these subblocks (320,330) by calculating a variance measure based on property values of neighboring pixels (310)/subblocks (320,330) in two prediction directions in the block (300) relative to a current subblock (320,330). If the variance is below a threshold, the prediction is calculated based on neighboring property values in both directions. If the measure exceeds the threshold, the neighboring property values in only one of the two predictions are used for calculating the prediction. A guiding bit (450) descriptive of the selected direction is also provided. A prediction error is calculated based on the property value and the calculated prediction. The compressed block (400) comprises an encoded representation (460) of the prediction error and any guiding bit (470).
-
公开(公告)号：EP2128822A1
公开(公告)日：2009-12-02
申请号：EP08169172.7
申请日：2008-11-14
CPC分类号： H04N19/98 , G06T9/004 , H04N19/105 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/91
摘要： A pixel block (300) is compressed by determining a reference set of multiple reference property values (10-14). A value index associated with a reference property value of the reference set is assigned to each pixel (310-316) in the pixel block (300) based on the original property value of the pixel (310-316). A prediction of the value index is provided based on the value index assigned to at least one neighboring pixel (314, 316) in the pixel block (300). A prediction error is calculated based on the value index assigned to a pixel (316) and its value index prediction. The compressed pixel block (400) comprises encoded representations (424) of the prediction errors and an encoded representation (410) of the reference set.
摘要翻译： 通过确定多个参考属性值（10-14）的参考集来压缩像素块（300）。 基于像素（310-316）的原始属性值，将与参考集的参考属性值相关联的值索引分配给像素块（300）中的每个像素（310-316）。 基于分配给像素块（300）中的至少一个相邻像素（314,316）的值索引来提供值索引的预测。 基于分配给像素（316）的值索引及其值索引预测来计算预测误差。 压缩像素块（400）包括预测误差的编码表示（424）和参考集合的编码表示（410）。
-
公开(公告)号：EP1659536A1
公开(公告)日：2006-05-24
申请号：EP04027570.3
申请日：2004-11-19
IPC分类号： G06T11/00
CPC分类号： G06T11/00 , G06T3/4007
摘要： A method and a device for generating a pixel value from a plurality of sample values being generated from a plurality of sample points (321-324). The method comprises generating a plurality of sample values; and weighting said plurality of sample values for determining said pixel value. Each sample value is generated from one of a plurality of candidate sample points (321-324) within a sample region (311-314). The sample region is positioned at a corner of two intersecting borders of the pixel. The size of the sample region is smaller than the size of the pixel. The device is arranged to carry out the method according to the invention.
摘要翻译： 一种用于从多个采样点（321-324）生成的多个采样值产生像素值的方法和装置。 该方法包括产生多个样本值; 以及对所述多个采样值加权以确定所述像素值。 每个样本值从样本区域（311-314）内的多个候选采样点（321-324）中的一个生成。 样本区域位于像素的两个相交边界的拐角处。 样本区域的大小小于像素的大小。 该装置被设置为执行根据本发明的方法。
-
公开(公告)号：EP2688042B1
公开(公告)日：2019-01-09
申请号：EP13172504.6
申请日：2004-07-08
IPC分类号： G06T9/00 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/184 , H04N19/98
-
公开(公告)号：EP1480171B1
公开(公告)日：2016-11-02
申请号：EP03011579.4
申请日：2003-05-22
IPC分类号： G06T11/00
CPC分类号： G06T3/4007 , G06T11/40 , G09G5/363 , G09G2340/0407
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.019 秒)
