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    • 82. 发明申请
    • MOTION VECTOR ENCODING/DECODING METHOD AND DEVICE AND IMAGE ENCODING/DECODING METHOD AND DEVICE USING SAME
    • 运动矢量编码/解码方法和设备和图像编码/解码方法和使用其的设备
    • WO2011031030A3
    • 2011-06-16
    • PCT/KR2010005878
    • 2010-08-31
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPWON KWANGHYUN
    • KIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPWON KWANGHYUN
    • H04N7/32
    • H04N19/52H04N19/124H04N19/132H04N19/176H04N19/182H04N19/56H04N19/57H04N19/61
    • The present invention relates to a motion vector encoding/decoding method and device and an image encoding/decoding method and device using the same. The invention provides the motion vector encoding method comprising the steps of: selecting a predictive motion vector candidate set which includes one or more predictive motion vector candidates for a block; determining a search range for the predictive motion vector candidate set; selecting one predictive motion vector candidate of the one or more predictive motion vector candidates as a predictive motion vector candidate in accordance with each search point, according to the image decoding device and a first determination standard which is previously appointed for each search point within the search range; determining a predictive motion vector, a differential motion vector, and a current motion vector by selecting one predictive motion vector candidate of the predictive motion vector candidates in accordance with each search point, according to the image decoding device and a second determination standard which is not previously appointed; and generating and encoding the differential motion vector as motion information. According to the present invention, motion vectors are encoded by using more accurate predictive motion vectors, and there is no need to add information for identifying the predictive motion vectors to the encoded data, thereby improving the motion vector encoding efficiency.
    • 运动矢量编码/解码方法和装置及其图像编码/解码方法和装置技术领域本发明涉及运动矢量编码/解码方法和装置以及使用该方法和装置的图像编码/解码方法和装置。 本发明提供了一种运动矢量编码方法,包括以下步骤:选择包括块的一个或多个预测运动矢量候选的预测运动矢量候选组; 确定预测运动矢量候选组的搜索范围; 根据图像解码装置选择一个或多个预测运动矢量候选的一个预测运动矢量候选作为根据每个搜索点的预测运动矢量候选,以及先前为搜索内的每个搜索点指定的第一确定标准 范围; 根据所述图像解码装置,根据所述图像解码装置选择所述预测运动矢量候补的一个预测运动矢量候选,并且根据所述图像解码装置选择第二判定基准,来确定预测运动矢量,差分运动矢量和当前运动矢量 以前任命 并且将差分运动矢量生成和编码为运动信息。 根据本发明,通过使用更准确的预测运动矢量来编码运动矢量,并且不需要向编码数据添加用于识别预测运动矢量的信息,从而提高运动矢量编码效率。
    • 87. 发明申请
    • ENCODING APPARATUS, METHOD FOR DRIVING SAME, AND ENCODING METHOD
    • 编码装置,驱动它的方法和编码方法
    • WO2011105867A3
    • 2011-12-08
    • PCT/KR2011001379
    • 2011-02-28
    • SK TELECOM CO LTDLIM JEONGYEONKIM SUNYEON
    • LIM JEONGYEONKIM SUNYEON
    • H04N7/24
    • H04N19/152H04N19/15
    • One embodiment of the present invention relates to an encoding apparatus, to a method for driving same, and to an encoding method. The encoding apparatus according to the embodiment of the present invention comprises: an image-analyzing unit which receives and analyzes an input image, and outputs the input image and analysis information; an input image and analysis information buffer unit which stores the input image and the analysis information, and provides the stored input image and analysis information via different paths; a database unit which receives information related to the output volume of a bit stream being outputted and/or said analysis information, selects encoding-related prediction information according to the information related to the output volume of the bit stream and said analysis information, and provides the selected information; a bit rate controller which generates bit rate allocation information for allocating bit rates of the input image using the analysis information, the encoding-related prediction information, and information on the output state of the bit stream being outputted; an encoding unit which provides the information related to the output volume of the bit stream and the information on the output state of the bit stream, encodes the input image using the encoding-related prediction information, the bit rate allocation information, and the information on the output state of the bit stream, and outputs the encoded image; and an output state information buffer which receives the information on the output state of the bit stream, stores the received information, and provides the bit rate controller and/or the encoding unit with the information on the output state of the bit stream.
    • 本发明的一个实施例涉及编码装置,用于驱动该编码装置的方法以及编码方法。 根据本发明实施例的编码设备包括:图像分析单元,其接收并分析输入图像,并输出输入图像和分析信息; 输入图像和分析信息缓冲单元,其存储输入图像和分析信息,并且经由不同路径提供所存储的输入图像和分析信息; 数据库单元,其接收与正在输出的比特流的输出量和/或所述分析信息有关的信息;根据与比特流的输出量相关的信息和所述分析信息来选择与编码相关的预测信息;以及提供 所选信息; 比特速率控制器,其使用分析信息,编码相关预测信息以及正在输出的比特流的输出状态的信息来生成用于分配输入图像的比特率的比特率分配信息; 提供与比特流的输出音量有关的信息和关于比特流的输出状态的信息的编码单元使用编码相关预测信息,比特率分配信息和关于比特率信息的信息对输入图像进行编码 比特流的输出状态,并输出编码图像; 以及输出状态信息缓冲器,其接收关于比特流的输出状态的信息,存储所接收的信息,并向比特率控制器和/或编码单元提供关于比特流的输出状态的信息。
    • 90. 发明申请
    • IMAGE ENCODING/DECODING METHOD AND APPARATUS
    • 图像编码/解码方法和装置
    • WO2011004986A3
    • 2011-03-31
    • PCT/KR2010004323
    • 2010-07-02
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPKIM DONGUK
    • KIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPKIM DONGUK
    • H04N7/24H04N7/34
    • H04N19/11H04N19/176H04N19/46H04N19/593
    • The present invention relates to an image encoding/decoding method. The present invention provides an image encoding apparatus comprising: an intra-prediction mode determining unit for determining an encoder prediction mode which is an intra-prediction mode for the present block, using a candidate intra-prediction enabling mode set containing an intra-prediction mode candidate which is predictable by the image encoding apparatus from among intra-prediction mode candidates; an encoding unit for encoding a residual block obtained by subtracting a block from the prediction block obtained by predicting the present block in accordance with the encoder prediction mode; a mode information generating unit for generating mode information in accordance with whether or not the image encoding apparatus may predict the encoder prediction mode; and an encoding data generating unit for generating encoding data containing the encoded residual block and mode information. The present invention selectively encodes mode information for the intra-prediction mode, and reduces the bit rate of encoded data obtained by encoding images, thereby improving image compression efficiency and the quality of compressed images.
    • 本发明涉及图像编码/解码方法。 本发明提供了一种图像编码装置,包括:帧内预测模式确定单元,用于使用包含帧内预测模式的候选帧内预测使能模式集来确定作为当前块的帧内预测模式的编码器预测模式 可以由图像编码装置从帧内预测模式候选中预测的候选者; 编码单元,用于对通过根据编码器预测模式预测当前块而获得的预测块减去块而获得的残差块进行编码; 模式信息生成单元,用于根据图像编码装置是否可以预测编码器预测模式来生成模式信息; 以及编码数据生成单元,用于生成包含编码后的残差块和模式信息的编码数据。 本发明选择性地编码帧内预测模式的模式信息,并且减少通过编码图像获得的编码数据的比特率,从而提高图像压缩效率和压缩图像的质量。