专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07587091B2 De-interlacing using decoder parameters 有权
标题翻译：使用解码器参数去隔行扫描
公开(公告)号：US07587091B2
公开(公告)日：2009-09-08
申请号：US10976460
申请日：2004-10-29
申请人： Dmitrii Loukianov , Raju Hormis
发明人： Dmitrii Loukianov , Raju Hormis
IPC分类号： G06K9/46 , G06K9/36 , G06K9/40 , H04N7/12 , H04N11/02 , H04N11/04 , H04N7/01
CPC分类号： H04N7/012 , H04N5/142 , H04N5/145 , H04N7/014 , H04N7/0142 , H04N19/139 , H04N19/85
摘要： Locations of reference blocks of pixels of decoded interlaced video reference fields decoded from a compressed stream of video data are computed using motion vectors decoded from the same stream of video data. The reference block computed locations are de-interlaced with current blocks from current video fields decoded from the compressed streams of video data by low pass filtering light intensities of adjacent pixels of the reference and current blocks using low pass filter with coefficients adjustable according to discrete cosine transform (DCT) high frequency coefficients decoded from the coded stream. In addition, moving edges or objects of the de-interlaced blocks of pixels can be identified by comparing the decoded motion vector of the reference blocks to a threshold value. Then proper or more appealing light intensities for the moving edge pixels can be interpolated.
摘要翻译：使用从相同的视频数据流解码的运动矢量来计算从视频数据的压缩流解码的解码的隔行视频参考场的参考块的参考块的位置。参考块计算的位置与来自当前视频场的当前块通过使用低通滤波器与来自视频数据的压缩流的低通滤波光强度的参考块和当前块的相邻像素的光强度进行去隔行扫描，其中系数可根据离散余弦可调从编码流解码的变换（DCT）高频系数。此外，可以通过将参考块的解码运动矢量与阈值进行比较来识别去隔行扫描块的移动边缘或物体。然后可以内插移动边缘像素的适当或更有吸引力的光强度。

22. 发明授权

US07446820B2 Methods and apparatus for re-scaling image by variable re-scaling factor using B-spline interpolator 失效
标题翻译：使用B样条内插器通过可变重新缩放因子重新缩放图像的方法和装置
公开(公告)号：US07446820B2
公开(公告)日：2008-11-04
申请号：US11093683
申请日：2005-03-30
申请人： Kuo-Ching Liang , Raju Hormis , Sreenath Kurupati
发明人： Kuo-Ching Liang , Raju Hormis , Sreenath Kurupati
IPC分类号： H04N7/01 , H04N11/20 , H04N9/74 , G06K9/32 , G09G5/00
CPC分类号： G06T3/4007
摘要： A method includes receiving a sequence of input samples that represents a row of pixels in an image. The method further includes selecting a re-scaling factor for at least a portion of the row of pixels. The method further includes determining a phase offset based on the selected re-scaling factor, and applying a direct B-spline transform to a group of the samples to generate transform coefficients. The method further includes providing the transform coefficients as an input to a filter bank, and applying the phase offset at an output of the filter bank to generate a sequence of output samples.
摘要翻译：一种方法包括接收表示图像中的像素行的输入样本序列。该方法还包括为像素行的至少一部分选择重新缩放因子。该方法还包括基于所选择的重新缩放因子确定相位偏移，以及将直接B样条变换应用于一组样本以产生变换系数。该方法还包括将变换系数作为输入提供给滤波器组，以及在滤波器组的输出处施加相位偏移以产生输出采样序列。

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