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    INTERFRAME WAVELET CODING APPARATUS AND METHOD CAPABLE OF ADJUSTING COMPUTATIONAL COMPLEXITY
    1.
    发明申请
    INTERFRAME WAVELET CODING APPARATUS AND METHOD CAPABLE OF ADJUSTING COMPUTATIONAL COMPLEXITY 审中-公开
    帧间小波编码装置和调整计算复杂度的方法

    公开(公告)号：WO2005051000A8

    公开(公告)日：2005-11-03

    申请号：PCT/KR2004001130

    申请日：2004-05-13

    Applicant: KOREA ELECTRONICS TELECOMM ,  JEONG SE-YOON ,  KIM KYU-HEON ,  KIM WONHA ,  KIM JIN-WOONG

    Inventor： JEONG SE-YOON ,  KIM KYU-HEON ,  KIM WONHA ,  KIM JIN-WOONG

    IPC: H04N7/26 ,  H04N7/24

    CPC classification number: H04N19/615 ,  H04N19/122 ,  H04N19/13 ,  H04N19/139 ,  H04N19/172 ,  H04N19/1883 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635

    Abstract: Provided is an inter-frame wavelet coding apparatus that can reduce the computation complexity of a decoder by adjusting a decomposition level and a filter length based on the information amount of a frame during wavelet transform and a method therefor. The inter-frame wavelet coding apparatus includes: a Motion Compensated Temporal Filtering (MCTF) unit for computing a motion vectors of a group of pictures (GOP) and filtering the GOP with respect to the temporal axis, to thereby obtain filtered frame; a wavelet transforming unit for performing spatial wavelet transform on the filtered frame and outputting a wavelet coefficient; a quantization unit for quantizing the wavelet coefficient; an entropy coding unit for entropy-coding the motion vector computed in the MCTF unit and the quantized wavelet coefficient, to thereby generate an entropy-coded bit stream; and a wavelet filter managing unit for selecting a decomposition level and a filter length for the wavelet transforming unit based on motion estimation information of the GOP video computed in the MCTF unit, wherein the decomposition level and the filter length are included in the entropy-coded bit stream.

    Abstract translation: 提供了一种帧间小波编码装置，其可以通过基于小波变换期间的帧的信息量调整分解水平和滤波器长度来降低解码器的计算复杂度及其方法。 帧间小波编码装置包括：运动补偿时间滤波（MCTF）单元，用于计算一组图像（GOP）的运动矢量并相对于时间轴对GOP进行滤波，从而获得滤波帧; 小波变换单元，用于对滤波后的帧进行空间小波变换，并输出小波系数; 用于量化小波系数的量化单元; 熵编码单元，用于对在MCTF单元中计算出的运动矢量进行熵编码和量化小波系数，从而生成熵编码比特流; 以及小波滤波器管理单元，用于基于在所述MCTF单元中计算出的GOP视频的运动估计信息来选择所述小波变换单元的分解电平和滤波器长度，其中所述分解电平和所述滤波器长度包括在所述熵编码 位流。

    DEVICE AND METHOD FOR EDITING, AUTHORING, AND RETRIEVING OBJECT-BASED MPEG-4 CONTENTS
    2.
    发明申请
    DEVICE AND METHOD FOR EDITING, AUTHORING, AND RETRIEVING OBJECT-BASED MPEG-4 CONTENTS 审中-公开
    用于编辑，编写和检索基于目标的MPEG-4内容的设备和方法

    公开(公告)号：WO2004039054A3

    公开(公告)日：2004-08-19

    申请号：PCT/KR0302232

    申请日：2003-10-22

    Applicant: KOREA ELECTRONICS TELECOMM ,  JOUNG YE-SUN ,  KIM KYU-HEON ,  KANG KYEONG-OK ,  KIM JIN-WOONG

    Inventor： JOUNG YE-SUN ,  KIM KYU-HEON ,  KANG KYEONG-OK ,  KIM JIN-WOONG

    IPC: G06F17/24 ,  G06F17/30 ,  G11B27/031 ,  G11B27/034 ,  G11B27/32 ,  H04N20060101 ,  H04N5/262 ,  H04N7/24

    CPC classification number: H04N21/435 ,  G06F17/3079 ,  G06F17/30858 ,  G11B27/031 ,  G11B27/034 ,  G11B27/322 ,  H04N21/23412 ,  H04N21/234318 ,  H04N21/234336 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/44012 ,  H04N21/8543

    Abstract: In a device for editing and authoring object-based AV (audio and visual) contents using the MPEG-4 method, an object-based MPEG-4(moving picture experts group 4) contents editing and authoring device (200) comprises: an extensible description generator (120) for receiving either of an MPEG-4 textual format or internal data structure information of object-based MPEG-4 contents, and MPEG-7(moving picture experts group 7) descriptions of the MPEG-4 contents, and generating an XML (extensible markup language) based textual format file including the MPEG-7 descriptions; an extensible description/binary converter for receiving the XML based textual format file including the MPEG-7 descriptions generated by the extensible description generator (120), and generating them as a binary file; and an XML based contents storage unit (110) for storing the XML based textual format file generated by the extensible description generator (120) and the binary file generated by the extensible description/binary converter.

    Abstract translation: 在使用MPEG-4方法编辑和创作基于对象的AV（音频和视频）内容的设备中，基于对象的MPEG-4（运动图像专家组4）的内容编辑和创作设备（200）包括：可扩展 描述生成器（120），用于接收基于对象的MPEG-4内容的MPEG-4文本格式或内部数据结构信息以及MPEG-7（运动图像专家组7）对MPEG-4内容的描述，并且生成 基于XML（可扩展标记语言）的文本格式文件，包括MPEG-7描述; 一种可扩展描述/二进制转换器，用于接收包括由可扩展描述生成器（120）生成的MPEG-7描述的基于XML的文本格式文件，并将其生成为二进制文件; 以及基于XML的内容存储单元（110），用于存储由可扩展描述生成器（120）生成的基于XML的文本格式文件和由可扩展描述/二进制转换器生成的二进制文件。

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