利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.034 秒)

    Video coding method and decoding method and devices thereof
    31.
    再颁专利
    Video coding method and decoding method and devices thereof 有权
    视频编码方法及其解码方法及装置

    公开(公告)号：USRE39455E1

    公开(公告)日：2007-01-02

    申请号：US09691857

    申请日：2000-10-18

    申请人： Thiow Keng Tan

    发明人： Thiow Keng Tan

    IPC分类号： H04B1/66 ,  H04N7/32

    CPC分类号： H04N19/51 ,  H04N19/577

    摘要： A new predictive coding is used to increase the temporal frame rate and coding efficiency without introducing excessive delay. Currently the motion vector for the blocks in the bi-directionally predicted frame is derived from the motion vector of the corresponding block in the forward predicted frame using a linear motion model. This however is not effective when the motion in the image sequence is not linear. The efficiency of this method can be further improved if a non-linear motion model is used. In this model a delta motion vector is added to or subtracted from the derived forward and backward motion vector, respectively. The encoder performs an additional search to determine if there is a need for the delta motion vector. The presence of this delta motion vector in the transmitted bitstream is signalled to the decoder which then takes the appropriate action to make use of the delta motion vector to derive the effective forward and backward motion vectors for the bi-directionally predicted block.

    摘要翻译： 使用新的预测编码来增加时间帧速率和编码效率，而不引入过多的延迟。 目前，使用线性运动模型，从前向预测帧中的相应块的运动矢量导出双向预测帧中的块的运动矢量。 然而，当图像序列中的运动不是线性时，该方法无效。 如果使用非线性运动模型，则可以进一步提高该方法的效率。 在该模型中，增量运动矢量分别被添加到或从所得到的前向和后向运动矢量中减去。 编码器执行附加搜索以确定是否需要增量运动矢量。 传输的比特流中的该增量运动矢量的存在被发送到解码器，解码器然后采取适当的动作来利用增量运动矢量来导出用于双向预测的块的有效的前向和后向运动矢量。

    Low-complexity intra prediction for video coding
    37.
    发明授权
    Low-complexity intra prediction for video coding 有权
    视频编码的低复杂度帧内预测

    公开(公告)号：US09225986B2

    公开(公告)日：2015-12-29

    申请号：US13809511

    申请日：2011-07-14

    申请人： Frank Jan Bossen ,  Thiow Keng Tan

    发明人： Frank Jan Bossen ,  Thiow Keng Tan

    IPC分类号： H04N7/26 ,  G06K9/40 ,  H04N19/593 ,  H04N19/176 ,  H04N19/61 ,  H04N19/11 ,  H04N19/82

    CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

    摘要： The present invention provides a unique intra prediction process which improves the efficiency of video coding. H.264/AVC uses reference pixels in a horizontal boundary located immediately above a target block to be predicted and reference pixels in a vertical boundary located immediately left of the target block. In the present invention, at least some of one of an array of horizontal boundary pixels and an array of vertical boundary pixels are retrieved. Then, the retrieved pixels are added to the other boundary pixels to extend the array thereof. Intra prediction is performed, based solely on the extended array of boundary pixels.

    摘要翻译： 本发明提供了一种独特的帧内预测处理，其提高了视频编码的效率。 H.264 / AVC使用要预测的目标块正上方的水平边界中的参考像素和位于目标块的左侧的垂直边界中的参考像素。 在本发明中，检索水平边界像素阵列和垂直边界像素阵列中的至少一个阵列。 然后，检索到的像素被添加到其他边界像素以扩展其阵列。 仅基于扩展的边界像素阵列执行帧内预测。

    Method, apparatus and program for efficient generation of prediction signals
    38.
    发明授权
    Method, apparatus and program for efficient generation of prediction signals 有权
    用于有效产生预测信号的方法，装置和程序

    公开(公告)号：US08326063B2

    公开(公告)日：2012-12-04

    申请号：US12298854

    申请日：2007-04-23

    申请人： Choong Seng Boon ,  Yoshinori Suzuki ,  Thiow Keng Tan

    发明人： Choong Seng Boon ,  Yoshinori Suzuki ,  Thiow Keng Tan

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

    摘要： A block divider divides an input image into a plurality of regions. A prediction signal generator generates a prediction signal for the pixel signal contained in an object region, which is the object of processing, among the plurality of regions, and generates a prediction signal by using a texture synthesis method for forming a texture signal for the object region. A subtracter determines a residual signal between the pixel signal of the object region and the prediction signal, and a transformer and quantizer encode the residual signal to generate a compressed signal.

    摘要翻译： 块分割器将输入图像分割成多个区域。 预测信号发生器生成用于包含在作为多个区域中的处理对象的对象区域中的像素信号的预测信号，并且通过使用用于形成对象的纹理信号的纹理合成方法生成预测信号 地区。 减法器确定对象区域的像素信号和预测信号之间的残差信号，变换器和量化器对剩余信号进行编码以产生压缩信号。

    Moving picture encoding apparatus, moving picture encoding method, moving picture encoding program, moving picture decoding apparatus, moving picture decoding method, and moving picture decoding program
    39.
    发明授权
    Moving picture encoding apparatus, moving picture encoding method, moving picture encoding program, moving picture decoding apparatus, moving picture decoding method, and moving picture decoding program 有权
    运动图像编码装置，运动图像编码方法，运动图像编码程序，运动图像解码装置，运动图像解码方法和运动图像解码程序

    公开(公告)号：US08243802B2

    公开(公告)日：2012-08-14

    申请号：US12711901

    申请日：2010-02-24

    申请人： Choong Seng Boon ,  Thiow Keng Tan

    发明人： Choong Seng Boon ,  Thiow Keng Tan

    IPC分类号： H04B1/66 ,  H04N7/12

    CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N19/80

    摘要： In a moving picture encoding apparatus 10, as an embodiment of the present invention, a predicted image generator 16 generates a predicted image with respect to a target image, using a reference image stored in a frame memory 20. A difference image generator 18 performs a difference operation between the target image and the predicted image to generate a difference image. An encoder 22 encodes the difference image to generate an encoded difference signal. A decoder 28 decodes the encoded difference signal to generate a decoded difference image. A reproduced image generator 30 performs a summation of the decoded difference image and the predicted image to generate a reproduced image. An image updater 32 performs a weighted summation of a first image which is one of the reproduced image and the reference image, and a second image which is the other of the reproduced image and the reference image, to generate an updated image. The updated image is stored into the frame memory 20 to be used as a reference image in encoding of another target image.

    摘要翻译： 在运动图像编码装置10中，作为本发明的实施例，预测图像生成器16使用存储在帧存储器20中的参考图像来生成关于目标图像的预测图像。差分图像生成器18执行 目标图像与预测图像之间的差分运算，以产生差分图像。 编码器22对差分图像进行编码以产生编码的差分信号。 解码器28解码编码的差分信号以产生解码差分图像。 再现图像发生器30执行解码差分图像和预测图像的求和以产生再现图像。 图像更新器32执行作为再现图像和参考图像之一的第一图像和再现图像和参考图像中的另一个的第二图像的加权求和，以生成更新图像。 更新的图像被存储到帧存储器20中，以用作另一目标图像的编码中的参考图像。

    MOVING IMAGE ENCODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE ENCODING METHOD, MOVING IMAGE DECODING METHOD, MOVING IMAGE ENCODING PROGRAM, MOVING IMAGE DECODING PROGRAM, AND MOVING IMAGE ENCODING/ DECODING SYSTEM
    40.
    发明申请
    MOVING IMAGE ENCODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE ENCODING METHOD, MOVING IMAGE DECODING METHOD, MOVING IMAGE ENCODING PROGRAM, MOVING IMAGE DECODING PROGRAM, AND MOVING IMAGE ENCODING/ DECODING SYSTEM 有权
    移动图像编码装置，移动图像解码装置，移动图像编码方法，移动图像解码方法，移动图像编码程序，移动图像解码程序和移动图像编码/解码系统

    公开(公告)号：US20110249738A1

    公开(公告)日：2011-10-13

    申请号：US13077287

    申请日：2011-03-31

    申请人： Yoshinori Suzuki ,  Choong Seng Boon ,  Thiow Keng Tan

    发明人： Yoshinori Suzuki ,  Choong Seng Boon ,  Thiow Keng Tan

    IPC分类号： H04N7/32

    CPC分类号： H04N19/186 ,  H04N19/184

    摘要： In order to improve the encoding efficiency while avoiding an increase in the size or memory band of a frame memory and having adaptability in the encoding/decoding processing of a moving picture, a bit length extension converter converts a target picture having a bit length N into an extended target picture having a bit length M, a compressor encodes the converted picture, and an expander restores the encoded picture. Then, a bit length reduction converter converts the picture into a reproduction picture having a bit length L smaller than the bit length M, and this reproduction picture is stored in a frame memory as a reference picture.

    摘要翻译： 为了提高编码效率同时避免帧存储器的尺寸或存储带的增加并且在运动图像的编码/解码处理中具有适应性，位长度扩展转换器将具有位长度N的目标图像转换成 具有位长度M的扩展目标图像，压缩器对转换的图像进行编码，并且扩展器恢复编码图像。 然后，位长缩小转换器将图像转换成具有小于比特长度M的比特长度L的再现图像，并且该再现图像被存储在作为参考图像的帧存储器中。