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公开(公告)号：KR1020130093053A
公开(公告)日：2013-08-21
申请号：KR1020130078940
申请日：2013-07-05
Applicant: 한국전자통신연구원
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: PURPOSE: An adaptive image decoding method and a recoding medium capable of being decoded with a computer are provided to determine an intra prediction mode of a decoding object block by using one or reference blocks previously restored and to decode the decoding object block based on the determined intra prediction mode. CONSTITUTION: A decoder determines an intra prediction mode of a decoding object block based on the intra prediction mode which a previously restored reference block includes (S120). The decoder performs decoding on the decoding object block based on the determined intra prediction mode (S140). The reference block is one of the blocks which are nearest to the decoding object block in a current image. [Reference numerals] (AA) Start; (BB) End; (S110) Determine a reference block; (S120) Determine a decoding parameter of a reference block; (S130) Determine the property of a reference block; (S140) Decoding a decoding object block
Abstract translation: 目的：提供一种能够用计算机解码的自适应图像解码方法和记录介质，以通过使用先前恢复的一个或参考块来确定解码对象块的帧内预测模式，并且基于所确定的解码对象块来解码解码对象块 帧内预测模式。 构成：解码器基于先前恢复的参考块包括的帧内预测模式来确定解码对象块的帧内预测模式（S120）。 解码器基于所确定的帧内预测模式对解码对象块执行解码（S140）。 参考块是当前图像中最接近解码对象块的块之一。 （附图标记）（AA）开始; （BB）结束; （S110）确定参考块; （S120）确定参考块的解码参数; （S130）确定参考块的属性; （S140）对解码对象块进行解码
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公开(公告)号：KR1020130088098A
公开(公告)日：2013-08-07
申请号：KR1020130075267
申请日：2013-06-28
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/00587 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/70
Abstract: PURPOSE: A video information encoding method and a computer-readable recording medium are provided to infer the motion information of current block by using a decoding unit or the partition information of a prediction unit, thereby lowering the complexity of the video compression processing. CONSTITUTION: An encoder obtains the motion information of peripheral block from the peripheral block of current block, and determines the motion information of the current block based on the obtained motion information (S2010). The encoder entropy encodes the information about the prediction result (S2020). The encoder transmits the entropy encoded information to a decoder through the bit stream (S2030). The encoder transmits the information which is necessary for the prediction of the current block together when transmitting the entropy encoded information. [Reference numerals] (S2010) Prediction performance; (S2020) Entropy encoding; (S2030) Information transmission
Abstract translation: 目的：提供视频信息编码方法和计算机可读记录介质，以通过使用解码单元或预测单元的分区信息来推断当前块的运动信息，从而降低视频压缩处理的复杂度。 构成：编码器从当前块的外围块获取周边块的运动信息，并根据获得的运动信息确定当前块的运动信息（S2010）。 编码器对关于预测结果的信息进行熵编码（S2020）。 编码器通过比特流将熵编码信息发送到解码器（S2030）。 当发送熵编码信息时，编码器将当前块的预测所需的信息一起发送。 （附图标记）（S2010）预测性能; （S2020）熵编码; （S2030）信息传输
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公开(公告)号：KR1020130088097A
公开(公告)日：2013-08-07
申请号：KR1020130075265
申请日：2013-06-28
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/00587 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/70
Abstract: PURPOSE: A video information encoding apparatus is provided to improve the compression performance of the video information and is provided to reduce the amount of transmission of the information. CONSTITUTION: Prediction units (110,115,120) obtain the motion information of peripheral block from the peripheral block of the current block. Based on the obtained motion information, the prediction units determine the motion information of the current block and perform the prediction about the current block. Entropy encoding unit (140) entropy encodes a merge index which is able to infer the motion information of the current block. If the peripheral block is not included in the encoding unit which is same as the current block, the prediction unit does not use the motion information of the peripheral block as the merge candidate of the current block. [Reference numerals] (110) Motion prediction unit; (115) Motion compensation unit; (120) Intra prediction unit; (130) Conversion unit; (135) Quantization unit; (140) Entropy encoding unit; (145) Inverse quantization unit; (150) Inversion unit; (160) Filter unit; (165) Reference image buffer; (AA) Input image; (BB) Inter; (CC) Intra; (DD) Bit stream
Abstract translation: 目的：提供视频信息编码装置，以提高视频信息的压缩性能，并提供信息的传输量。 构成：预测单元（110,115,120）从当前块的外围块获取外围块的运动信息。 基于获得的运动信息，预测单元确定当前块的运动信息，并执行关于当前块的预测。 熵编码单元（140）熵编码能够推断当前块的运动信息的合并索引。 如果外围块不包括在与当前块相同的编码单元中，则预测单元不使用外围块的运动信息作为当前块的合并候选。 （附图标记）（110）运动预测单元; （115）运动补偿单元; （120）内部预测单元; （130）转换单位; （135）量化单元; （140）熵编码单元; （145）反量化单元; （150）反转单位; （160）过滤单元; （165）参考图像缓冲区; （AA）输入图像; （BB）国际; （CC）内 （DD）位流
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公开(公告)号：KR1020130086593A
公开(公告)日：2013-08-02
申请号：KR1020130083735
申请日：2013-07-16
CPC classification number: H04N19/44 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/64 , H04N19/70
Abstract: PURPOSE: An image decoding method using a quad tree and storage media which are readable using a computer are provided to decode total code block flag information in a conversion stage and to decode division information flag based on total code block flag information and the size information in the conversion stage. CONSTITUTION: An image decoder decodes pattern information based on conversion stage information combination flag information (S1200). The image decoder decodes a code block flag or division information flag information corresponding to the pattern based on the pattern information decoded (S1210). [Reference numerals] (AA) Start; (BB) End; (S1200) Decode pattern information based on a conversion stage information combination flag information in a conversion stage; (S1210) Decode a code block flag or division information flag information corresponding to the pattern based on the decoded pattern information
Abstract translation: 目的：提供一种使用计算机可读取的四叉树和存储介质的图像解码方法，用于对转换阶段的总代码块标志信息进行解码，并根据总代码块标志信息和大小信息解码分割信息标志 转换阶段。 构成：图像解码器基于转换级信息组合标志信息来解码图案信息（S1200）。 图像解码器基于解码的图案信息解码对应于图案的码块标志或分割信息标志信息（S1210）。 （附图标记）（AA）开始; （BB）结束; （S1200）基于转换级中的转换级信息组合标志信息解码模式信息; （S1210）基于解码图案信息对与图案对应的码块标志或分割信息标志信息进行解码
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公开(公告)号：KR1020130084286A
公开(公告)日：2013-07-24
申请号：KR1020130082551
申请日：2013-07-15
Applicant: 한국전자통신연구원
CPC classification number: H04N19/00733 , H04N19/426 , H04N19/44 , H04N19/513 , H04N19/61
Abstract: PURPOSE: A video encoding apparatus using a motion vector is provided to encode and decode a video using a motion vector. CONSTITUTION: A reference picture buffer (190) stores a reference picture. A motion compensation unit (112) generates a prediction block using a motion vector of the reference picture. The motion vector of the reference picture is cut in a predetermined range. The motion vector of the reference picture is stored by a predetermined block. [Reference numerals] (111) Motion prediction unit; (112) Motion compensation unit; (120) Intra prediction unit; (130) Conversion unit; (140) Quantization unit; (150) Entropy encoding unit; (160) Reverse quantization unit; (170) Reverse conversion unit; (180) Filter unit; (190) Reference picture buffer; (AA) Input image; (BB) Bit stream; (CC) Inter; (DD) Intra
Abstract translation: 目的：提供使用运动矢量的视频编码装置，以使用运动矢量对视频进行编码和解码。 构成：参考图像缓冲器（190）存储参考图像。 运动补偿单元（112）使用参考图像的运动矢量生成预测块。 将参考图像的运动矢量切割成预定范围。 参考图像的运动矢量由预定块存储。 （附图标记）（111）运动预测单元; （112）运动补偿单元; （120）内部预测单元; （130）转换单位; （140）量化单元; （150）熵编码单元; （160）反向量化单元; （170）反转换单元; （180）过滤单元; （190）参考图像缓冲器; （AA）输入图像; （BB）比特流; （CC）国际 （DD）内
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Patent Agency Ranking
公开(公告)号：KR101277093B1
公开(公告)日：2013-06-20
申请号：KR1020120077423
申请日：2012-07-16
Applicant: 한국전자통신연구원
IPC: H04N7/24
Abstract: 적응적 비트 심도 감소를 통한 부호화와 복호화 방법 및 그 장치가 제공된다. 입력 신호의 비트 심도(bit depth)를 감소시킬 것인지 판단하는 비트 심도 조정부, 상기 비트 심도를 감소시킬 것으로 판단한 경우, 상기 입력 신호의 비트 심도를 감소시키는 비트 심도 감소부, 상기 입력 신호를 양자화하는 비트 심도 양자화부, 및 상기 입력 신호의 비트 심도를 증가시키는 비트 심도 증가부를 포함하는 부호화 장치가 개시된다.
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公开(公告)号：KR1020130053645A
公开(公告)日：2013-05-24
申请号：KR1020110119169
申请日：2011-11-15
Applicant: 한국전자통신연구원
IPC: H04N19/82 , H04N19/117
CPC classification number: H04N19/82 , H04N19/117 , H04N19/124
Abstract: PURPOSE: A video encoding/decoding method using an adaptive loop filter and a device thereof are provided to reduce operation complexity and to improve the efficiency of image encoding and decoding by filtering an adaptive loop. CONSTITUTION: A decoder derives a filter tap and a filter coefficient of an adaptive loop filter(S510). The decoder determines the application of adaptive loop filtering to each area or block in a frame(S520). The decoder filters an adaptive loop to a reconstruction image by using information about the filter tap, the filter coefficient, and the application of the adaptive loop filtering(S530). [Reference numerals] (S510) Derive a filter tap and a filter coefficient; (S520) Determine whether to apply filtering; (S530) Perform the filtering
Abstract translation: 目的：提供一种使用自适应环路滤波器的视频编码/解码方法及其装置，以通过滤波自适应环路来降低操作复杂度并提高图像编码和解码的效率。 构成：解码器导出滤波器抽头和自适应环路滤波器的滤波器系数（S510）。 解码器确定对帧中的每个区域或块的自适应环路滤波的应用（S520）。 解码器通过使用关于滤波器抽头的信息，滤波器系数和自适应环路滤波的应用来对重构图像进行自适应环路过滤（S530）。 （参考号）（S510）导出滤波器抽头和滤波器系数; （S520）确定是否应用过滤; （S530）执行过滤
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公开(公告)号：KR101255230B1
公开(公告)日：2013-04-16
申请号：KR1020120068178
申请日：2012-06-25
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/597 , H04N13/00
Abstract: 본 발명은 서로 다른 시점(viewpoint)을 가지는 복수의 카메라가 각기 촬영한 다시점(multi-viewpoint) 동영상 데이터들을 부호화하기 위하여 적응적으로 움직임 벡터를 예측하는 방법 및 장치에 관한 것으로서, 본 발명은 현재 블록의 인접 블록 중 현재 블록이 시간적 또는 공간적으로 참조하는 블록과 동일한 블록을 참조하는 블록만을 검출하는 블록 검출부; 및 블록 검출부에서 검출된 블록의 움직임 벡터를 기초로 현재 블록의 예측 움직임 벡터값을 구하는 적응적 예측부를 포함하여 적응적으로 움직임 벡터를 예측함으로써 압축률을 개선한다.
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公开(公告)号：KR1020120095823A
公开(公告)日：2012-08-29
申请号：KR1020120077423
申请日：2012-07-16
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/184 , H04N19/124 , H04N19/174 , H04N19/176
Abstract: PURPOSE: An encoding/decoding method and an apparatus thereof through adaptive bit depth reduction are provided to reduce the bit depth of brightness and color components and to selectively and adaptively perform reduction of bit depth. CONSTITUTION: An encoding apparatus determines reduction of bit depth of an input signal(S510). The encoding apparatus reduces the bit depth of the input signal in case the encoding apparatus determines the reduction of the bit depth(S520). The encoding apparatus quantizes the input signal(S530). The encoding device increases the bit depth of the input signal(S540).
Abstract translation: 目的：提供一种通过自适应比特深度减少的编码/解码方法及其装置，以减少亮度和颜色分量的比特深度，并且有选择地和自适应地执行比特深度的减少。 构成：编码装置确定输入信号的位深度的减少（S510）。 在编码装置确定比特深度减小的情况下，编码装置减少输入信号的比特深度（S520）。 编码装置对输入信号进行量化（S530）。 编码装置增加输入信号的比特深度（S540）。
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公开(公告)号：KR1020120095794A
公开(公告)日：2012-08-29
申请号：KR1020120016171
申请日：2012-02-17
Applicant: 한국전자통신연구원 , 한밭대학교 산학협력단
IPC: H04N19/51 , H04N19/105
CPC classification number: H04N19/51 , H04N19/105 , H04N19/159
Abstract: PURPOSE: A high speed encoding method is provided to determine a motion prediction direction and a reference picture at high speed and to reduce the complexity of an image encoding device. CONSTITUTION: An image encoding apparatus defines a test block group by combination of neighbor blocks of an encoding target block(S310). The image encoding apparatus determines a motion prediction direction of the encoding target block based on a motion prediction mode of the block included in the test block group(S320). The image encoding apparatus determines a reference picture of the encoding target block based on a reference picture of the block(S330).
Abstract translation: 目的：提供高速编码方法，以高速度确定运动预测方向和参考图像，并降低图像编码装置的复杂度。 构成：图像编码装置通过组合编码对象块的相邻块来定义测试块组（S310）。 图像编码装置基于包括在测试块组中的块的运动预测模式来确定编码对象块的运动预测方向（S320）。 图像编码装置基于块的参考图像确定编码对象块的参考图像（S330）。
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