Apparatus and method for resolution transformation of orthogonal transformation image
    2.
    发明授权
    Apparatus and method for resolution transformation of orthogonal transformation image 失效
    正交变换图像分辨率变换的装置和方法

    公开(公告)号:US06683997B1

    公开(公告)日:2004-01-27

    申请号:US09707136

    申请日:2000-11-06

    IPC分类号: G06K932

    CPC分类号: G06T9/007 G06T3/4084

    摘要: A resolution transformation apparatus which has longitudinal and lateral change ratio input means 101 for inputting the longitudinal and lateral change ratios of an image, low-frequency orthogonal transformation block extraction means 103 for extracting only low-frequency areas of N orthogonal transformation blocks required for resolution transformation from before-transformation orthogonal transformation image memory 102 for storing orthogonal transformation images before undergoing resolution transformation, resolution transformation means 104 for executing resolution transformation and generating M orthogonal transformation blocks from the N low-frequency orthogonal transformation blocks, and orthogonal transformation block storage means 105 for storing the Morthogonal transformation blocks after resolution transformation in after-transformation orthogonal transformation image memory 106.

    摘要翻译: 一种分辨率变换装置,其具有纵向和横向变化率输入装置101,用于输入图像低频正交变换块提取装置103的纵向和横向变化比,用于仅提取分辨率所需的N个正交变换块的低频区域 在进行分辨率变换之前用于存储正交变换图像的变换前正交变换图像存储器102的变换,用于执行分辨率变换并从N个低频正交变换块生成M个正交变换块的分辨率变换单元104,以及正交变换块存储单元 105,用于在转换后正交变换图像存储器106中存储分辨率变换后的正交变换块。

    Motion vector detecting method and system and devices incorporating the same
    4.
    发明授权
    Motion vector detecting method and system and devices incorporating the same 失效
    运动矢量检测方法及其结合的系统和装置

    公开(公告)号:US06925121B1

    公开(公告)日:2005-08-02

    申请号:US09164333

    申请日:1998-10-01

    CPC分类号: H04N19/40 H04N19/51

    摘要: A system of detecting a motion vector for an object block in a current frame of an orthogonally transformed video with respect to a stored reference frame. The motion vector is detected by: extracting a predetermined pattern of lower frequency components from the object block; orthogonally inverse transforming the extracted lower frequency components within the pattern to yield the pattern of pixel data; searching the reference frame for a block having a maximum correlation with the pattern of pixel data; and calculating the motion vector from the object block to the block having a maximum correlation. As an orthogonal transform, DCT (discrete cosine transform) is preferable. Creating a row and a column image comprising sums obtained by adding all the pixels in each column and each row of the object block and applying the above searching and calculating process to the row and the column image enables the motion vector detection from a normal or noncompressed video.

    摘要翻译: 一种检测相对于存储的参考帧的正交变换视频的当前帧中的对象块的运动矢量的系统。 通过以下步骤检测运动矢量:从对象块中提取较低频率分量的预定模式; 在图案内正交逆变换提取的较低频分量以产生像素数据的图形; 在参考帧中搜索与像素数据的图案具有最大相关性的块; 以及计算从目标块到具有最大相关性的块的运动矢量。 作为正交变换,优选DCT(离散余弦变换)。 创建行和列图像,其包括通过将每个列中的所有像素和对象块的每一行相加并将上述搜索和计算处理应用于行和列图像而获得的和,使得能够从正常或非压缩的运动矢量检测 视频。

    Method and apparatus for transforming moving picture coding system
    8.
    发明授权
    Method and apparatus for transforming moving picture coding system 有权
    用于变换运动图像编码系统的方法和装置

    公开(公告)号:US06625211B1

    公开(公告)日:2003-09-23

    申请号:US09511488

    申请日:2000-02-23

    IPC分类号: H04N712

    摘要: The transformation method for moving picture coding system reads data of a frame from the first data sequence in the first moving picture moving coding system, prereads a coding mode of a successive frame to record, and when the preread coding mode of the successive frame is the intra-frame coding mode, performs a control not to perform coding of a present frame or decrease a generated code amount corresponding to the generated coed content of the second data sequence in the second moving picture coding system. Then, the method preferentially transforms data coded by the intra-frame coding mode existing in the first data sequence to the second data sequence.

    摘要翻译: 运动图像编码系统的变换方法从第一运动图像运动编码系统中的第一数据序列读取帧的数据,对连续帧的编码模式进行预编码记录,并且当连续帧的预读编码模式为 帧内编码模式,执行不执行当前帧的编码的控制或减少与第二运动图像编码系统中的第二数据序列的生成的合成内容相对应的生成代码量。 然后,该方法优先地将存在于第一数据序列中的帧内编码模式编码的数据变换为第二数据序列。

    Motion picture converting apparatus
    9.
    发明授权
    Motion picture converting apparatus 失效
    动态影像转换装置

    公开(公告)号:US06192078B1

    公开(公告)日:2001-02-20

    申请号:US09033087

    申请日:1998-03-02

    IPC分类号: H04N732

    CPC分类号: H04N19/40 H04N19/53 H04N19/56

    摘要: To perform a motion picture format conversion at high speed in a motion picture converting apparatus, the apparatus comprises: input device 101 for inputting a digital image signal constituted of blocks, each block being orthogonally transformed; a frame memory 102 for storing the digital image signal; block reading device 103 for reading the blocks or a macro block from the frame memory in response to a request; region dividing section controlling device 109 for sending a read request to the block reading device; component extracting device 104 for extracting a low-frequency component alone of the captured image signal; two low-resolution frame memories 105 for storing extracted information; motion detecting device 106 for detecting a motion in accordance with the information in the low-resolution frame memories; a region dividing section 113 including macro block classifying device 107 for labeling the macro block in response to a motion detection result by the motion detecting device and label storing device 114 for storing a label of the macro block; decoding device 110; an encoding section 111 for changing an encoding of the macro block in response to the label in the label storing device; and output device 112 for outward outputting the coded signal.

    摘要翻译: 为了在运动图像转换装置中高速执行运动图像格式转换,该装置包括:输入装置101,用于输入由块构成的数字图像信号,每个块正交变换; 用于存储数字图像信号的帧存储器102; 块读取装置103,用于响应于请求从帧存储器读取块或宏块; 区域分割部控制装置109,用于向块读取装置发送读取请求; 分量提取装置104,用于提取单独的拍摄图像信号的低频分量; 用于存储提取的信息的两个低分辨率帧存储器105; 运动检测装置106,用于根据低分辨率帧存储器中的信息检测运动; 区域划分部分113,包括宏块分类装置107,用于响应于运动检测装置的运动检测结果标记宏块;以及标签存储装置114,用于存储宏块的标签; 解码装置110; 编码部分111,用于响应标签存储装置中的标签改变宏块的编码; 以及用于向外输出编码信号的输出装置112。

    Method and apparatus for transforming moving picture coding system
    10.
    发明授权
    Method and apparatus for transforming moving picture coding system 有权
    用于变换运动图像编码系统的方法和装置

    公开(公告)号:US07292632B2

    公开(公告)日:2007-11-06

    申请号:US10456677

    申请日:2003-06-09

    摘要: A first data sequence generated by a first moving picture coding system having an intra-frame coding mode and an inter-frame coding mode is transformed to a second data sequence generated by a second moving picture coding system having an intra-frame coding mode and an inter-frame coding mode. The method includes prereading a coding mode of a successive frame succeeding a present frame from the first data sequence, judging whether or not a preread coding mode of the successive frame is the intra-frame coding mode and determining whether or not to code the present frame by the second moving picture coding system corresponding to a generated code amount of the second data sequence when the coding mode of the successive frame is the intra-frame coding mode. Data coded by the intra-frame coding mode existing in the first data sequence is transformed to the second data sequence.

    摘要翻译: 由具有帧内编码模式和帧间编码模式的第一运动图像编码系统生成的第一数据序列被变换为由具有帧内编码模式的第二运动图像编码系统和 帧间编码模式。 该方法包括对来自第一数据序列的当前帧以后的连续帧的编码模式进行预编译,判断连续帧的预读编码模式是否为帧内编码模式,并确定是否对当前帧进行编码 当连续帧的编码模式是帧内编码模式时,通过与第二数据序列的生成代码量对应的第二运动图像编码系统。 通过存在于第一数据序列中的帧内编码模式编码的数据被变换为第二数据序列。