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    Information terminal unit and communication method based thereon
    51.
    发明公开
    Information terminal unit and communication method based thereon 审中-公开
    Informationsterminal und darauf basierendes Kommunikationsverfahren

    公开(公告)号：EP1465433A2

    公开(公告)日：2004-10-06

    申请号：EP04005557.6

    申请日：2004-03-09

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Kajita, Satoshi ,  Ejima, Takayuki ,  Kataoka, Tomonori ,  Fuchigami, Ikuo ,  Imagawa, Kazuyuki ,  Iwasa, Katsuhiro

    IPC分类号： H04N7/50

    CPC分类号： H04N19/587 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/156 ,  H04N19/162 ,  H04N19/17 ,  H04N19/172 ,  H04N19/57 ,  H04N19/61 ,  H04N2007/145

    摘要： The characteristic-detecting unit (20) is operable to detect characteristics from a first or second information terminal unit-captured image. The first information terminal unit-captured image has been obtained by an image input unit (10). The second information terminal unit-captured image has been decoded by an image-decoding unit (80). The characteristic-detecting unit (20) is further operable to control an image-encoding unit (30), an image-displaying unit (90), the image-decoding unit (80), or the image input unit (10) in accordance with the characteristic information. The control system provides a reduced amount of processing required for image encoding, either stops displaying the images or displays fewer images, either stops transferring the images from the image-decoding unit (80) to the image-displaying unit (90) or transfers fewer images therebetween in the same transfer direction, and provides fewer image-captured frames. This feature provides an information terminal unit characterized by thrifty power consumption.

    摘要翻译： 特征检测单元（20）可用于检测来自第一或第二信息终端单元捕获图像的特性。 已经通过图像输入单元（10）获得了第一信息终端单元拍摄图像。 第二信息终端单元拍摄图像已经由图像解码单元（80）解码。 特征检测单元（20）还可用于根据图像编码单元（30），图像显示单元（90），图像解码单元（80）或图像输入单元（10）来控制 具有特征信息。 控制系统提供图像编码所需的处理量减少，停止显示图像或显示更少的图像，停止将图像从图像解码单元（80）传送到图像显示单元（90）或传送更少的图像 图像在相同的传送方向上，并且提供较少的图像捕获帧。 该特征提供了以节省电力消耗为特征的信息终端单元。

    Method for motion estimation adaptive to DCT block content
    52.
    发明公开
    Method for motion estimation adaptive to DCT block content 审中-公开
    DCT-Blockinhalt-angepasstesBewegungsschätzungsverfahren

    公开(公告)号：EP1389875A2

    公开(公告)日：2004-02-18

    申请号：EP03018377.6

    申请日：2003-08-13

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Lee, Seung-Cheol, c/o SAMSUNG ELECTRONICS CO., LTD ,  Lee, Hwa-Soon, c/o SAMSUNG ELECTRONICS CO., LTD

    IPC分类号： H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/57 ,  H04N19/122 ,  H04N19/126 ,  H04N19/132 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/51 ,  H04N19/53 ,  H04N19/61

    摘要： Disclosed is a method for encoding a video signal through discrete cosine transform (DCT) and motion estimation (ME) and an apparatus therefor. The method for encoding the video signal simplifies the ME with reference to DCT coefficients. In a method for estimating motion in a video frame compression system using DCT, flatness degrees of the blocks is determined according to the number of DCT coefficients having a non-zero value among DCT coefficients transformed in units of blocks. A reference frame is formed by recovering video frame data from some or all of the DCT coefficients corresponding to the flatness degrees of the blocks. Precision of motion estimation (ME) for a current macro block (MB) of a current video frame is dynamically changed corresponding to the flatness degree of the reference frame.

    摘要翻译： 公开了一种通过离散余弦变换（DCT）和运动估计（ME）对视频信号进行编码的方法及其装置。 参考DCT系数，视频信号的编码方法简化了ME。 在使用DCT的视频帧压缩系统中估计运动的方法中，根据以块为单位变换的DCT系数中具有非零值的DCT系数的数量来确定块的平坦度。 通过从与块的平坦度相对应的一些或全部DCT系数恢复视频帧数据来形成参考帧。 当前视频帧的当前宏块（MB）的运动估计精度（ME）根据参考帧的平坦度而动态地改变。

    MOVING VECTOR DETECTING METHOD
    54.
    发明公开
    MOVING VECTOR DETECTING METHOD 审中-公开
    方法的运动矢量检测

    公开(公告)号：EP1120976A1

    公开(公告)日：2001-08-01

    申请号：EP99933147.3

    申请日：1999-07-29

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： OKUMURA, Seiji Mitsubishi Denki Kabushiki Kaisha ,  HATANO, Yoshiko Mitsubishi Denki Kabushiki Kaisha

    IPC分类号： H04N7/32

    CPC分类号： H04N19/51 ,  H04N5/145 ,  H04N19/533 ,  H04N19/56 ,  H04N19/57

    摘要： The present invention relates to a motion vector detection system for detecting a motion vector for motion compensation in moving picture compression. It is the subject of the invention to provide with a motion vector detection system for reducing the amount of operations without degrading the quality of an image.
    The vector memory 101 stores a motion vector having been obtained. The predicted motion vector calculator 102 predicts the motion vector of a block to be predicted based upon the motion vector of a block adjacent to the block to be predicted. The search range determiner 103 determines a search range based upon the motion vector predicted. The motion vector detector 105 performs block matching within the search range.