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
    • 21. 发明申请
    • MOTION VECTOR REFINEMENT FOR MPEG-2 TO H.264 VIDEO TRANSCODING
    • MPEG-2到H.264视频传输的运动矢量精简
    • US20120307907A1
    • 2012-12-06
    • US13546159
    • 2012-07-11
    • Anthony Peter JochMichael D. Gallant
    • Anthony Peter JochMichael D. Gallant
    • H04N7/32
    • H04N19/40H04N19/513H04N19/523H04N19/56H04N19/61
    • A method for transcoding that includes (A) generating a decoded frame by decoding an MPEG-2 input video stream, the decoded frame including decoded macroblocks; (B) determining a search center for encoding a current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, when (i) the encoding uses a predictive field mode and (ii) a current field being encoded is a second field of a current frame that has a first field as a reference field, the search center is a temporally scaled version of a decoded motion vector from an upper or a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the search center; and (D) generating an H.264 output video stream by encoding the current macroblock based on the refined motion vector.
    • 一种用于代码转换的方法,包括:(A)通过解码MPEG-2输入视频流来生成解码帧,解码的帧包括解码的宏块; (B)当(i)编码使用预测场模式时,确定用于编码与连续宏块行上的一对解码宏块对应的当前宏块的搜索中心,并且(ii)被编码的当前场是第二场 具有第一场作为参考场的当前帧,搜索中心是来自该对中的上或下宏块的解码运动矢量的时间缩放版本; (C)通过在关于搜索中心的时间搜索方向上搜索来生成精细运动矢量; 和(D)通过基于精细运动矢量对当前宏块进行编码来生成H.264输出视频流。
    • 22. 发明授权
    • Motion vector refinement for MPEG-2 to H.264 video transcoding
    • 用于MPEG-2到H.264视频转码的运动矢量细化
    • US08265157B2
    • 2012-09-11
    • US11703482
    • 2007-02-07
    • Anthony Peter JochMichael D. Gallant
    • Anthony Peter JochMichael D. Gallant
    • G06F21/00
    • H04N19/40H04N19/513H04N19/523H04N19/56H04N19/61
    • A method for transcoding is disclosed. The method generally includes the steps of (A) generating a decoded frame by decoding an input video stream in an MPEG-2 format, the decoded frame including a plurality of decoded macroblocks; (B) determining a current search center to be used in encoding a current macroblock into an H.264 format, the current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, wherein when (i) the encoding uses a predictive field mode and (ii) a current field being encoded comprises a second field of a current frame and has a first field of the current frame as a reference field, the current search center comprises a temporally scaled version of a decoded motion vector from one of an upper macroblock of the pair and a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the current search center; and (D) generating an output video stream in the H.264 format by the encoding of the current macroblock based on the refined motion vector.
    • 公开了一种用于代码转换的方法。 该方法通常包括以下步骤:(A)通过以MPEG-2格式解码输入视频流来生成解码帧,解码帧包括多个解码的宏块; (B)确定将当前宏块编码为H.264格式的当前搜索中心,当前宏块对应于连续宏块行上的一对解码宏块,其中当(i)编码使用预测场时 模式,并且(ii)被编码的当前场包括当前帧的第二场,并且具有当前帧的第一场作为参考场,当前搜索中心包括解码的运动矢量的时间缩放版本, 该对的上部宏块和该对中的下部宏块; (C)通过在关于当前搜索中心的时间搜索方向上搜索来生成精细运动矢量; 以及(D)通过基于精细运动矢量对当前宏块进行编码,生成H.264格式的输出视频流。
    • 23. 发明申请
    • HIGH QUALITY, LOW MEMORY BANDWIDTH MOTION ESTIMATION PROCESSOR
    • 高质量,低存储带宽运动估计处理器
    • US20090022223A1
    • 2009-01-22
    • US12237741
    • 2008-09-25
    • Michael D. GallantEric C. Pearson
    • Michael D. GallantEric C. Pearson
    • H04N7/26
    • H04N5/145H04N19/43H04N19/433
    • An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) copy a plurality of first reference samples of a first reference image from an external memory, the first reference samples being proximate a first position within the first reference image and (ii) generate a first motion vector corresponding to a first current block of a current image by searching among the first reference samples. The second circuit may be configured to (i) copy a plurality of second reference samples of the first reference image from the external memory, the second reference samples being (a) proximate a second position within the first reference image and (b) non-adjacent the first reference samples and (ii) generate a second motion vector corresponding to the first current block by searching among the second reference samples.
    • 公开了一种通常具有第一电路和第二电路的装置。 第一电路可以被配置为(i)从外部存储器复制第一参考图像的多个第一参考样本,第一参考样本靠近第一参考图像内的第一位置,并且(ii)生成第一运动矢量 对应于当前图像的第一当前块,通过在第一参考样本之间进行搜索。 第二电路可以被配置为(i)从外部存储器复制第一参考图像的多个第二参考样本,第二参考样本是(a)接近第一参考图像内的第二位置,以及(b) 邻近第一参考样本,并且(ii)通过在第二参考样本之间进行搜索来生成与第一当前块对应的第二运动向量。