비디오 비트율 제어 방법 및 그 장치
    2.
    发明公开
    비디오 비트율 제어 방법 및 그 장치 审中-实审
    视频速率控制方法及其设备

    公开(公告)号:KR1020120096911A

    公开(公告)日:2012-08-31

    申请号:KR1020120018672

    申请日:2012-02-23

    CPC classification number: H04N19/147 H04N19/124 H04N19/149 H04N19/152

    Abstract: PURPOSE: A video bit rate control method and an apparatus thereof are provided to increase accuracy and performance of bit rate and to increase the efficiency of image encoding. CONSTITUTION: A video bit rate controller determines target bit quantity of a current frame by using current frame type information(S430). The video bit rate controller calculates a QP(Quantization Parameter) about the current frame by applying the determined target bit quantity to a secondary rate distortion model(S450). The apparatus encodes the current frame by using the calculated QP(S490).

    Abstract translation: 目的:提供视频比特率控制方法及其装置,以提高比特率的精度和性能,并提高图像编码的效率。 构成:视频比特率控制器通过使用当前帧类型信息来确定当前帧的目标比特数量(S430)。 视频比特率控制器通过将确定的目标比特量应用于二次速率失真模型来计算关于当前帧的QP(量化参数)(S450)。 该装置通过使用所计算的QP编码当前帧(S490)。

    고효율 비디오 부호화의 계층적 부호화 구조를 위한 비트율 제어 기법
    3.
    发明公开
    고효율 비디오 부호화의 계층적 부호화 구조를 위한 비트율 제어 기법 无效
    高效率视频编码(HEVC)中分层编码结构的速率控制

    公开(公告)号:KR1020120096863A

    公开(公告)日:2012-08-31

    申请号:KR1020110099305

    申请日:2011-09-29

    CPC classification number: H04N19/147 H04N19/36

    Abstract: PURPOSE: A bit rate controlling method for hierarchical coding structure capable of encoding a video of high efficiency is provided to apply a rate-distortion characteristic to a secondary rate-distortion model by using the property of rate-distortion according to a frame type of each time layer in consideration of a hierarchical coding structure. CONSTITUTION: QP(Quantization Parameter) of a first frame and QP of a second frame are determined by using actual generation bit quantity about each frame type of each temporal layer(301). Increase or reduction of CP id determined about QP of the first frame according to a target bit quantity of the second frame within the same time layer.

    Abstract translation: 目的:提供一种能够对高效率的视频进行编码的分层编码结构的比特率控制方法,通过使用根据每个帧的帧类型的速率失真特性,对二次速率失真模型应用速率失真特性 考虑到分层编码结构的时间层。 构成:通过使用关于每个时间层(301)的每个帧类型的实际生成位量来确定第一帧的QP(量化参数)和第二帧的QP。 根据同一时间层内的第二帧的目标比特数,增加或减少关于第一帧的QP的CP id。

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