会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Noise filter for video processing
    • 用于视频处理的噪声滤波器
    • US07366238B2
    • 2008-04-29
    • US10959333
    • 2004-10-05
    • Weimin ZengLi ShaPing Zhu
    • Weimin ZengLi ShaPing Zhu
    • H04N7/12G06K9/40
    • H04N5/21H04N19/117H04N19/14
    • A noise filter for a video processing system includes a block selector, a cost calculator, a cost table, a cost comparator, and a coefficient filter. The block selector is coupled to receive data from the quantization unit and selects blocks for additional filtering. The selected blocks are provided to the cost calculator determines a cost for each of the coefficients in the block using the cost table and the costs are summed. The cost comparator compares the total to a threshold, and filters the coefficients using the coefficient filter if the total is greater a preset threshold. The noise filter to the VLC unit then outputs the filter data.
    • 用于视频处理系统的噪声滤波器包括块选择器,成本计算器,成本表,成本比较器和系数滤波器。 块选择器被耦合以从量化单元接收数据并且选择用于额外滤波的块。 所选择的块被提供给成本计算器使用成本表确定块中的每个系数的成本,并且将成本相加。 成本比较器将总和比较为阈值,并且如果总数大于预设阈值,则使用系数滤波器对系数进行滤波。 然后,VLC单元的噪声滤波器输出滤波器数据。
    • 9. 发明申请
    • CELL ARRAY AND METHOD OF MULTIRESOLUTION MOTION ESTIMATION AND COMPENSATION
    • 细胞阵列和多元运动估计和补偿方法
    • US20050213661A1
    • 2005-09-29
    • US09924079
    • 2001-08-07
    • Shuhua XiangLi ShaYaojun Luo
    • Shuhua XiangLi ShaYaojun Luo
    • G06T7/20H04N5/14H04N7/12H04N7/18H04N7/26
    • H04N19/523G06T7/223G06T2207/10016H04N5/145H04N19/43H04N19/53
    • A method, apparatus, computer medium, and other embodiments for motion estimation and compensation processing of video and image signals are described. Within a sequence of frames, block-based differences are taken between frames to exploit redundancies between pictures by taking a matchblock from the current picture and by determining a spatial offset in a corresponding reference picture which signifies a good prediction of where the current macroblock can be found. Multi-level motion estimation is performed in three stages to refine the resolution of the motion vector with reduced computational bandwidth. First, a matchblock from a reference frame is decomposed equally into several sub-matchblocks, each of which is searched in parallel over a search area decomposed into sub-blocks by a similar factor so as to determine a preliminary motion vector in the reference picture. Second, a full size matchblock is then searched over a refined search area using the preliminary motion vector to determine an intermediate motion vector, so as to refine the resolution of the preliminary motion vector. Third, fractional-pixel searching is then performed on the matchblock and the intermediate motion vector to determine a final motion vector having an even higher resolution associated with the best motion vector to be used in predicting the current macroblock. In one embodiment, a processor-based motion estimation and compensation cell array enables contemporaneous and independent loading and processing operations in parallel.
    • 描述了用于视频和图像信号的运动估计和补偿处理的方法,装置,计算机介质和其它实施例。 在一系列帧内,在帧之间采用基于块的差异,以通过从当前图像获取匹配块并且通过确定相应参考图片中的空间偏移来表示图像之间的冗余,其表示对当前宏块可以在何处的良好预测 发现。 多级运动估计分三个阶段进行,以减少计算带宽的细化运动矢量的分辨率。 首先,来自参考帧的匹配块被分解为几个子匹配块,每个子块通过相似的因素并行地搜索到被分解成子块的搜索区域,以便确定参考图片中的初步运动矢量。 其次,使用初步运动向量,在精细搜索区域上搜索全尺寸匹配块,以确定中间运动矢量,以便精细化预备运动矢量的分辨率。 第三,然后对匹配块和中间运动矢量执行分数像素搜索,以确定具有与用于预测当前宏块的最佳运动矢量相关联的更高分辨率的最终运动矢量。 在一个实施例中,基于处理器的运动估计和补偿单元阵列能够并行地实现同时且独立的加载和处理操作。