Image decoding device
    2.
    发明授权
    Image decoding device 有权
    图像解码装置

    公开(公告)号:US09247252B2

    公开(公告)日:2016-01-26

    申请号:US13990592

    申请日:2011-01-26

    摘要: In expansion and reduction of the size of a macroblock in a moving image encoding, a compression ratio falls because an information amount for describing size information of the macroblock increases. An image decoding device includes a CU dividing unit and a CU-size storing unit. The CU-size storing unit has stored therein size information of an encoded CU in an encoding target picture to be stored and size information of all CUs in preceding and following pictures used for prediction. The CU dividing unit predicts a CU size in an encoding target position using the CU size information stored in the CU-size storing unit and determines a CU size of a final encoding target CU.

    摘要翻译: 在运动图像编码中的宏块的尺寸的扩展和缩小中,由于用于描述宏块的大小信息的信息量增加,所以压缩率下降。 图像解码装置包括CU划分单元和CU尺寸存储单元。 CU尺寸存储单元将要存储的编码目标图像中的编码CU的尺寸信息和用于预测的先前和后续图像中的所有CU的尺寸信息存储在其中。 CU分割单元使用存储在CU尺寸存储单元中的CU大小信息来预测编码目标位置中的CU大小,并确定最终编码目标CU的CU大小。

    IMAGE DECODING DEVICE
    3.
    发明申请
    IMAGE DECODING DEVICE 有权
    图像解码设备

    公开(公告)号:US20130251038A1

    公开(公告)日:2013-09-26

    申请号:US13990592

    申请日:2011-01-26

    IPC分类号: H04N7/34

    摘要: In expansion and reduction of the size of a macroblock in a moving image encoding, a compression ratio falls because an information amount for describing size information of the macroblock increases. An image decoding device includes a CU dividing unit and a CU-size storing unit. The CU-size storing unit has stored therein size information of an encoded CU in an encoding target picture to be stored and size information of all CUs in preceding and following pictures used for prediction. The CU dividing unit predicts a CU size in an encoding target position using the CU size information stored in the CU-size storing unit and determines a CU size of a final encoding target CU.

    摘要翻译: 在运动图像编码中的宏块的尺寸的扩展和缩小中,由于用于描述宏块的大小信息的信息量增加,所以压缩率下降。 图像解码装置包括CU划分单元和CU尺寸存储单元。 CU尺寸存储单元将要存储的编码目标图像中的编码CU的尺寸信息和用于预测的先前和后续图像中的所有CU的尺寸信息存储在其中。 CU分割单元使用存储在CU尺寸存储单元中的CU大小信息来预测编码目标位置中的CU大小,并确定最终编码目标CU的CU大小。

    Image encoding device and image encoding method
    4.
    发明授权
    Image encoding device and image encoding method 有权
    图像编码装置和图像编码方法

    公开(公告)号:US08315467B2

    公开(公告)日:2012-11-20

    申请号:US12434851

    申请日:2009-05-04

    IPC分类号: G06K9/36

    摘要: The invention aims at reducing the circuit size while maintaining the creation of a predictive image suitable for the intra prediction based on a pipeline processing. The encoding device is operated to perform intra prediction in blocks of pixels resulting from division of a frame of a moving image has a pseudo-local-decode-image-creation module for simply encoding an original image, and an intra prediction module for using the created pseudo local decode image to select an intra prediction mode. In the intra prediction based on pipeline processing, the pipeline stage for selecting an intra prediction mode and the pipeline stage for creating predictive image data according to the selected intra prediction mode are separated.

    摘要翻译: 本发明旨在减少电路尺寸,同时基于流水线处理保持适合于帧内预测的预测图像的创建。 编码装置被操作以对运动图像的帧的划分产生的像素块执行帧内预测,​​具有用于简单地对原始图像进行编码的伪局部解码图像创建模块和用于使用原始图像的帧内预测模块 创建伪局部解码图像以选择帧内预测模式。 在基于流水线处理的帧内预测中,分离用于选择帧内预测模式的流水线级和用于根据所选择的帧内预测模式创建预测图像数据的流水线级。

    IMAGE ENCODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING METHOD, AND IMAGE DECODING DEVICE
    5.
    发明申请
    IMAGE ENCODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING METHOD, AND IMAGE DECODING DEVICE 有权
    图像编码方法,图像编码装置,图像解码方法和图像解码装置

    公开(公告)号:US20130243097A1

    公开(公告)日:2013-09-19

    申请号:US13988819

    申请日:2012-01-16

    IPC分类号: H04N7/36

    CPC分类号: H04N19/52 H04N19/46 H04N19/56

    摘要: For the purpose of providing an image encoding technique for reducing the amount of codes, in inter prediction in which motion search is performed by using a block obtained by dividing an input image and a reference image, the motion vector of the block is predicted by selecting from the motion vectors of the surrounding blocks. Further, in the method of calculating a differential vector and then performing encoding, the number or positions of candidate blocks from which a prediction vector is selected are changed block by block or frame by frame and thereby adaptive and efficient video image compression is performed.

    摘要翻译: 为了提供用于减少代码量的图像编码技术,在通过使用通过划分输入图像和参考图像获得的块来执行运动搜索的帧间预测中,通过选择块来预测块的运动矢量 从周围块的运动矢量。 此外,在计算差分矢量然后执行编码的方法中,逐个或逐帧地改变选择了预测向量的候选块的数量或位置,从而执行自适应和高效的视频图像压缩。

    IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS
    8.
    发明申请
    IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS 有权
    图像解码方法和图像解码装置

    公开(公告)号:US20150063437A1

    公开(公告)日:2015-03-05

    申请号:US14381663

    申请日:2012-03-30

    摘要: To provide a video coding technique to reduce the amount of code, a coding apparatus configured to code layers at a plurality of resolutions as a stream determines the coding unit, prediction unit, and frequency transform unit for each layer in compliance with given rules with reference to the coding unit, prediction unit, and frequency transform unit of the lower layer, respectively, and switches the given rules with a flag. This adaptively and efficiently compresses a video.

    摘要翻译: 为了提供减少代码量的视频编码技术,被配置为以多个分辨率编码层的编码装置作为流,根据给定的规则确定每层的编码单位,预测单元和频率变换单元 分别到下层的编码单元,预测单元和频率变换单元,并用标志来切换给定的规则。 这自动高效地压缩视频。

    IMAGE DECODING METHOD AND IMAGE CODING METHOD
    10.
    发明申请
    IMAGE DECODING METHOD AND IMAGE CODING METHOD 审中-公开
    图像解码方法和图像编码方法

    公开(公告)号:US20110182361A1

    公开(公告)日:2011-07-28

    申请号:US13120917

    申请日:2009-06-29

    IPC分类号: H04N7/32 H04N7/28

    摘要: The present invention is directed to improve compression efficiency by variable-length coding in accordance with characteristics of image data to be processed. An apparatus for compressing quantized data by variable-length coding includes: a statistical information storing memory (212) for storing statistical information (MBTyp and CBPL) of coded image data; a variable-length code table generating unit (213) for generating a variable-length code table on the basis of the statistical information stored in the memory; and a variable-length coding unit (205) for performing variable-length coding on the basis of the variable-length code table. The variable-length code table generating unit generates a variable-length code table by adding occurrence probability of statistical information calculated within a predetermined range of the coded image data and initial occurrence probability selected on the basis of a coding parameter (S3005), and assigning a short code in descending order of statistical information obtained by the addition (S3006).

    摘要翻译: 本发明旨在通过根据要处理的图像数据的特性通过可变长度编码来提高压缩效率。 一种用于通过可变长度编码压缩量化数据的装置,包括:存储编码图像数据的统计信息(MBTyp和CBPL)的统计信息存储器(212) 可变长度码表生成单元,用于根据存储在存储器中的统计信息生成可变长度码表; 以及用于根据可变长度代码表执行可变长度编码的可变长度编码单元(205)。 可变长度码表生成单元通过将编码图像数据的预定范围内的计算出的统计信息的发生概率和基于编码参数选择的初始发生概率相加,生成可变长度码表(S3005),并分配 通过加法获得的统计信息的降序的缩写(S3006)。