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    개선된 ＡＲ-ＦＧＳ 및 ＦＧＳ 모션 리파인먼트 기법을적용하는 ＳＶＣ 부호화기, 복호화기 및 그곳에서의 부호화및 복호화 방법
    52.
    发明公开
    개선된 ＡＲ-ＦＧＳ 및 ＦＧＳ 모션 리파인먼트 기법을적용하는 ＳＶＣ 부호화기, 복호화기 및 그곳에서의 부호화및 복호화 방법 无效
    具有自适应参考FGS和FGS运动修正机制的可缩放视频编码编码器及其方法

    公开(公告)号：KR1020080034417A

    公开(公告)日：2008-04-21

    申请号：KR1020070104240

    申请日：2007-10-16

    Applicant: 한국전자통신연구원 ,  한국과학기술원

    Inventor： 강정원 ,  최해철 ,  김재곤 ,  홍진우 ,  노용만 ,  탕청꽁 ,  배태면

    IPC: H04N19/34

    CPC classification number: H04N19/34 ,  H04N19/157 ,  H04N19/174 ,  H04N19/176 ,  H04N19/187 ,  H04N19/196 ,  H04N19/46 ,  H04N19/51 ,  H04N19/577 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70

    Abstract: A scalable video coding encoder with an adaptive reference FGS(Fine Grain SNR Scalability) and FGS motion refinement method, the encoder, and a method for encoding and decoding in the same are provided to increase higher encoding efficiency of the encoder by determining a prediction signal of the FGS layer block according to scale element values of the FGS layer and determining the scale elements according to the residual signals of the FGS layer block. A scalable video coding encoder comprises a prediction signal determining part(1010), and a scale element determining part(1020). The prediction signal determining part determines a prediction signal of the FGS layer block according to the scale element value of the FGS layer when the interlayer prediction is not made among the foundation layer, the former layer, and the present layer. The scale element determining part determines the scale element used when predicting the FGS layer block corresponding to the FGS layer block on the basis of the residual signals of the FGS layer block.

    Abstract translation: 提供了具有自适应参考FGS（细粒度SNR可伸缩性）和FGS运动细化方法的可缩放视频编码编码器，编码器及其编码和解码方法，以通过确定预测信号来提高编码器的编码效率 根据FGS层的比例元素值来确定FGS层块，并根据FGS层块的残余信号确定标度元素。 可分级视频编码编码器包括预测信号确定部分（1010）和标尺元素确定部分（1020）。 预测信号决定部在基础层，前一层和当前层之间进行层间预测时，根据FGS层的比例元素值，决定FGS层块的预测信号。 缩放元素确定部分基于FGS层块的残留信号来预测与FGS层块对应的FGS层块时使用的比例元素。

    변형 선형예측 부호화를 이용한 오디오 부호화 및 복호화장치 및 그 방법
    53.
    发明公开
    변형 선형예측 부호화를 이용한 오디오 부호화 및 복호화장치 및 그 방법 失效
    音频编码和解码设备和使用线性预测编码的方法

    公开(公告)号：KR1020080023618A

    公开(公告)日：2008-03-14

    申请号：KR1020070026820

    申请日：2007-03-19

    Applicant: 한국전자통신연구원 ,  한양대학교 산학협력단 ,  연세대학교 산학협력단 ,  광운대학교 산학협력단

    Inventor： 서정일 ,  백승권 ,  장인선 ,  정세윤 ,  최해철 ,  장대영 ,  김재곤 ,  문경애 ,  홍진우 ,  김진웅 ,  박호종 ,  박영철 ,  이재성 ,  강상원

    IPC: G10L19/04 ,  H03M7/30

    Abstract: An apparatus for audio encoding and decoding using warped linear prediction coding, and a method thereof are provided to remove the redundancy of an original signal by using the warped linear prediction coding in an audio encoding process, provide an error signal to an audio encoder as an input signal, and transform a psychological sound model to be suitable for the error signal, thereby increasing the efficiency of audio signal compression and performing audio signal encoding. An error signal calculating unit(110) performs the warped linear prediction coding of an audio signal inputted from the outside in a temporal area to calculate an error signal. A frequency domain converting unit(120) converts the error signal obtained in the error signal calculating unit into a frequency domain signal. A masking threshold value calculating unit(131,132) calculates a masking threshold value used in the encoding of the error signal by using an original signal and encoding information used in the warped linear prediction coding of the original signal. A perceptual encoding unit(140) performs the perceptual encoding of the error signal converted in the frequency domain converting unit by using the calculated masking threshold value.

    Abstract translation: 提供了一种使用翘曲线性预测编码的音频编码和解码装置及其方法，用于通过在音频编码处理中使用翘曲的线性预测编码来消除原始信号的冗余度，向音频编码器提供误差信号作为 输入信号，并将心理声音模型变换为适合于误差信号，从而提高音频信号压缩和执行音频信号编码的效率。 误差信号计算单元（110）对从时间区域外部输入的音频信号执行翘曲的线性预测编码，以计算误差信号。 频域转换单元（120）将在误差信号计算单元中获得的误差信号转换成频域信号。 屏蔽阈值计算单元（131,132）通过使用原始信号和在原始信号的扭曲线性预测编码中使用的编码信息来计算在误差信号的编码中使用的掩蔽阈值。 感知编码单元（140）通过使用所计算的屏蔽阈值来执行在频域转换单元中转换的误差信号的感知编码。

    계층적 부호화 환경에서 ＰＯＣＳ 기반의 에러 은닉 방법
    55.
    发明公开
    계층적 부호화 환경에서 ＰＯＣＳ 기반의 에러 은닉 방법 有权
    基于多层视频编码的基于掩蔽的波形的方法

    公开(公告)号：KR1020080013109A

    公开(公告)日：2008-02-13

    申请号：KR1020060074180

    申请日：2006-08-07

    Applicant: 한국전자통신연구원 ,  경북대학교 산학협력단

    Inventor： 최해철 ,  김재곤 ,  윤병주 ,  정재우 ,  이시웅 ,  고윤호

    IPC: H04N19/895 ,  H04N19/89 ,  H04N19/30 ,  H04N19/176

    CPC classification number: H04N19/895 ,  H04N19/176 ,  H04N19/30 ,  H04N19/89

    Abstract: An error concealment method based on a POCS in a hierarchical coded environment is provided to search for a similar image block in a second layer having correlation with a first layer when an error occurs in the first layer obtained through hierarchical coding, thereby concealing the error by using the different layer of neighboring image blocks, and especially concealing efficiently the burst error in a wireless environment. An error concealment method based on a POCS(Projections Onto Convex Set) in a hierarchical coded environment comprises the following steps of: searching for a second layer of an image block, a reference block, with correlation between the first layer of an image block and the second layer of the image block in which an error occurs in a spatial area(202); measuring similarity between the reference block and an image block adjacent to the reference block in the spatial area(206); searching for a neighboring block with a minimum similar error out of the measured similarity of neighboring image blocks and setting the first layer of the image block with correlation between the searched neighboring image blocks and the first layer of the image block as an initial image block(212); replacing the first layer of the image block with the set initial image block(214); and concealing the first layer of the image block where the error occurs by repeating a POCS algorithm on the basis of an image block including the replaced initial image block and the neighboring image blocks(218).

    Abstract translation: 提供了一种基于分层编码环境中的POCS的错误隐藏方法，用于在通过分层编码获得的第一层中出现错误时，搜索与第一层相关的第二层中的类似图像块，从而将错误隐藏 使用相邻图像块的不同层，特别是在无线环境中有效地隐藏突发错误。 在分层编码环境中基于POCS（投影到凸集）的错误隐藏方法包括以下步骤：搜索图像块的第二层，参考块，其中图像块的第一层与 在空间区域（202）中发生错误的图像块的第二层; 在所述空间区域（206）中测量所述参考块和与所述参考块相邻的图像块之间的相似度; 在相邻图像块的测量相似度之外搜索具有最小相似误差的相邻块，并且将搜索到的相邻图像块和图像块的第一层之间的相关性设置为图像块的第一层作为初始图像块（ 212）; 用所设置的初始图像块（214）代替图像块的第一层; 并且通过基于包括所替换的初始图像块和相邻图像块的图像块（218）重复POCS算法来隐藏出现错误发生的图像块的第一层。

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