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公开(公告)号：KR101072626B1
公开(公告)日：2011-10-12
申请号：KR1020090111587
申请日：2009-11-18
Applicant: 경희대학교 산학협력단
IPC: H04N7/24
Abstract: 분산비디오코딩(Distributed Video Coding, DVC) 방법과장치에관하여개시한다. 일실시예에따른분산비디오코딩방법에서는전송채널의상황을지시하는다른계층에서의채널상황정보에기초하여 DVC 인코더에서의전송비트율을제어한다. 채널상황정보는패킷손실율(Packet Loss Rate, PLR) 및/또는가용비트율(available bitrate)일수 있다. 예를들어, 가용비트율이이전의가용비트율보다줄어들었거나, 패킷손실율이이전의패킷손실율보다증가한것으로판정되면, DVC 인코더에서는양자화파라미터(QP) 값을증가시켜서부호화를수행할수 있다. 또는, 패킷손실율및/또는가용비트율을이용하여 DVC 디코더에서수신되는비트율을계산하고, 디코딩에필요한패러티의비율과 DVC 인코더의양자화부에서의소스의크기를곱하여예측비트율을구한다음, 가용비트율과예측비트율을비교하여, 예측비트율이가용비트율보다클 경우에는양자화부에서의양자화파라미터(QP)의값을증가시킬수 있다.
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公开(公告)号：KR1020110009579A
公开(公告)日：2011-01-28
申请号：KR1020090067045
申请日：2009-07-22
Applicant: 경희대학교 산학협력단
IPC: H04N7/12
CPC classification number: H04N5/38 , H03M13/49 , H04N21/43637 , H04N21/4532
Abstract: PURPOSE: A video transmission apparatus, and a wireless network selection method for guaranteeing the best quality of experience are provided to satisfy both a cost request and a quality request of plural users having different preferences. CONSTITUTION: A collection unit(111) collects information from each layer, and an estimation unit estimates the packet loss rate and available bandwidth of a currently-used wireless channel from the information collected from the information collection unit. A calculation unit(114) calculates the rest packet loss rate of a video set determined by a determination unit(113).
Abstract translation: 目的：提供一种用于保证最佳的体验质量的视频传输设备和无线网络选择方法，以满足具有不同偏好的多个用户的成本请求和质量请求。 构成：收集单元（111）从各层收集信息，估计单元从信息收集单元收集的信息中估计当前使用的无线信道的分组丢失率和可用带宽。 计算单元（114）计算由确定单元（113）确定的视频集的休息分组丢失率。
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公开(公告)号：KR1020100023764A
公开(公告)日：2010-03-04
申请号：KR1020090077252
申请日：2009-08-20
Applicant: 경희대학교 산학협력단
IPC: H04N19/90
CPC classification number: H03M13/2957 , H03M7/30 , H03M13/6312
Abstract: PURPOSE: A method and an apparatus for decoding a video are provided to select data with least error with original image data among sub information generated in a decoder when decoding the original image data in a distribution video coding. CONSTITUTION: A method and an apparatus for decoding a video include a sub information generator(210), the first turbo decoder(220), a bit selector(230), and the second turbo decoder(240). The sub information generator predicts an original image to generate a plurality of sub information. The first turbo decoder generates decoded sub information by turbo-decoding each sub information. A bit selector receives decoded sub information and generate final sub information based on the frequency of toggles. The second turbo decoder is restored to original image data using partial information and final sub information about the original image data.
Abstract translation: 目的：提供用于对视频进行解码的方法和装置，用于在对分发视频编码中的原始图像数据进行解码时，在解码器中生成的子信息中选择与原始图像数据最小误差的数据。 构成：用于解码视频的方法和装置包括子信息生成器（210），第一turbo解码器（220），比特选择器（230）和第二turbo解码器（240）。 子信息生成器预测原始图像以生成多个子信息。 第一turbo解码器通过turbo解码每个子信息来产生解码子信息。 位选择器接收解码的子信息并且基于切换的频率生成最终子信息。 使用部分信息和关于原始图像数据的最终子信息将第二turbo解码器恢复到原始图像数据。
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公开(公告)号：KR1020090127246A
公开(公告)日：2009-12-10
申请号：KR1020090112803
申请日：2009-11-20
Applicant: 주식회사 티엘아이 , 경희대학교 산학협력단
CPC classification number: H04N19/597 , H04N13/139 , H04N13/161 , H04N13/178 , H04N13/189
Abstract: PURPOSE: A method for configuring an encoded stereoscopic image data file is provided to have a hierarchical structure and a structure for systematically storing intrinsic meta data in a stereoscopic image, thereby efficiently storing the encoded stereoscopic image data. CONSTITUTION: A file type declaration unit(100) directs whether a file is about a stereoscopic image. A metadata unit(200) includes one or more track containers for containing metadata of the encoded stereoscopic image data. An image data unit(300) comprises one or more stereoscopic image data containers for containing image information of the image data.
Abstract translation: 目的：提供一种用于配置经编码的立体图像数据文件的方法，以具有分层结构和用于在立体图像中系统地存储固有元数据的结构，从而有效地存储经编码的立体图像数据。 构成：文件类型声明单元（100）指示文件是关于立体图像。 元数据单元（200）包括用于包含经编码的立体图像数据的元数据的一个或多个轨道容器。 图像数据单元（300）包括用于包含图像数据的图像信息的一个或多个立体图像数据容器。
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公开(公告)号：KR1020090097833A
公开(公告)日：2009-09-16
申请号：KR1020090070748
申请日：2009-07-31
Applicant: 경희대학교 산학협력단
IPC: H04N19/117 , H04N19/86 , H04N19/176
CPC classification number: H04N19/00909 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/61 , H04N19/80 , H04N19/86
Abstract: A deblocking filtering apparatus is provided to remove the blocking phenomena caused by the brightness compensation and/or color difference compensation. A deblocking filtering apparatus comprises a boundary filtering strength determining unit and a filtering applying unit. The boundary filtering strength determining unit determines the boundary filtering strength between two blocks which are adjacent to each other. If it is determined that the blocks are not intra-coded(S301), the determining unit whether at least one of the blocks has an orthogonal conversion coefficient(S303). The filtering applying unit applies filtering for the blocks according to the boundary filtering strength outputted from the boundary filtering strength determining unit.
Abstract translation: 提供去块滤波装置以去除由亮度补偿和/或色差补偿引起的阻塞现象。 解块滤波装置包括边界滤波强度确定单元和滤波施加单元。 边界滤波强度确定单元确定彼此相邻的两个块之间的边界滤波强度。 如果确定块没有帧内编码（S301），则确定单元是否至少有一个块具有正交转换系数（S303）。 滤波应用单元根据从边界滤波强度确定单元输出的边界滤波强度对块进行滤波。
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Patent Agency Ranking
公开(公告)号：KR1020090074886A
公开(公告)日：2009-07-08
申请号：KR1020080000576
申请日：2008-01-03
Applicant: 경희대학교 산학협력단 , 한국전자통신연구원
IPC: H04N19/11 , H04N19/129
CPC classification number: H04N19/11 , H04N19/124 , H04N19/129 , H04N19/159
Abstract: A mode prediction according to a direction of an intra predictive mode improving the coding efficiency and a quantification matrix and a scanning application and an application thereof are provided to improve the performance of coding by using a static pattern of DCT coefficients. An encoder predicts an optimum intra mode by determining directivity among nine intra modes. An intra prediction determines whether to directivity between an intra prediction mode of a current block and an intra prediction mode of an adjacent block. If the quantization matrix sharing within an encoder and a decoder and the suitable quantization matrix is selected according to the direct of intra-mode, this matrix is applied to the quantization process.
Abstract translation: 提供了根据提高编码效率的内部预测模式的方向的模式预测和量化矩阵以及扫描应用及其应用，以通过使用DCT系数的静态模式来提高编码的性能。 编码器通过确定九个帧内模式之间的方向性来预测最佳帧内模式。 帧内预测确定当前块的帧内预测模式与相邻块的帧内预测模式之间的方向性。 如果根据帧内模式的直接选择编码器和解码器内的量化矩阵共享以及合适的量化矩阵，则该矩阵被应用于量化处理。
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公开(公告)号：KR1020090063154A
公开(公告)日：2009-06-17
申请号：KR1020080126424
申请日：2008-12-12
Applicant: 경희대학교 산학협력단
IPC: H04N19/90
Abstract: A multi-secondary information generation method of distributed video coding and a video terminal using the method are provided to lower a transmission rate by a repeated decoding process through feedback. Plural supplementary information frames are generated by using plural candidate frames. The plural candidate frames are generated by applying multi-motion measurement and compensation interpolation methods. A multi-motion measurement is acquired as changing a location of a pixel from which a unit block is initiated. Distributed video coding is carried out by using the plural supplementary information frames. When the plural candidate frames are generated, size of the unit block is changed.
Abstract translation: 提供分布式视频编码的多次信息生成方法和使用该方法的视频终端，以通过反馈通过重复解码处理来降低传输速率。 通过使用多个候选帧来生成多个补充信息帧。 通过应用多运动测量和补偿插值方法来生成多个候选帧。 获取多运动测量作为改变从其开始单位块的像素的位置。 通过使用多个附加信息帧来执行分布式视频编码。 当生成多个候选帧时，改变单位块的大小。
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公开(公告)号：KR1020090062091A
公开(公告)日：2009-06-17
申请号：KR1020070129192
申请日：2007-12-12
Applicant: 경희대학교 산학협력단
IPC: G02F1/133
CPC classification number: G09G3/3648 , G09G3/3406 , G09G2330/021 , H01L29/786
Abstract: A liquid crystal display device and a screen displaying method thereof are provided to obtain the desired brightness by increasing the opened degree of liquid crystal through a liquid crystal panel driving circuit. A liquid crystal display device comprises a liquid crystal panel(10), a backlight unit(20), a backlight unit driving circuit(42) and a liquid crystal panel driving circuit(41). The backlight unit comprises a plurality of light-emitting bodies(30). The backlight unit driving circuit obtains the brightness information of each light-emitting body by using pixel values of a screen, and then transmits the obtained information to the light-emitting bodies. The liquid crystal panel driving circuit controls the opened degree of liquid crystal of the liquid crystal panel by using the brightness information.
Abstract translation: 提供一种液晶显示装置及其屏幕显示方法，以通过液晶面板驱动电路增加液晶的开度来获得所需的亮度。 液晶显示装置包括液晶面板（10），背光单元（20），背光单元驱动电路（42）和液晶面板驱动电路（41）。 背光单元包括多个发光体（30）。 背光单元驱动电路通过使用屏幕的像素值来获得每个发光体的亮度信息，然后将所获得的信息发送到发光体。 液晶面板驱动电路通过使用亮度信息来控制液晶面板的液晶的开度。
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公开(公告)号：KR1020080107955A
公开(公告)日：2008-12-11
申请号：KR1020070075212
申请日：2007-07-26
Applicant: 주식회사 에스칩스 , 경희대학교 산학협력단
IPC: H04N13/00
CPC classification number: H04N19/597 , H04N13/139 , H04N13/161 , H04N13/178 , H04N13/189
Abstract: The constitution of the encoded stereoscopic image data file is provided to store encoded stereoscopic image data efficiently and to store metadata systematically which are inherent in the stereoscopic image. A file type declaring part(100) indicates whether the file is about the stereoscopic image. Meta data part(200) includes one or more track container of the encoded stereoscopic video data including the magnetic track container. An image data part(300) includes one or more stereoscopic image data container having image information of the encoded stereoscopic video data.
Abstract translation: 提供了经编码的立体图像数据文件的结构以有效地存储经编码的立体图像数据并且系统地存储在立体图像中固有的元数据。 文件类型声明部分（100）指示文件是关于立体图像。 元数据部分（200）包括包括磁轨容器的经编码的立体视频数据的一个或多个轨道容器。 图像数据部分（300）包括具有经编码的立体视频数据的图像信息的一个或多个立体图像数据容器。
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公开(公告)号：KR102130733B1
公开(公告)日：2020-07-06
申请号：KR1020130084368
申请日：2013-07-17
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N21/63 , H04N21/236 , H04N21/242 , H04N21/8543 , H04N21/43
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