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公开(公告)号：KR1020140081932A
公开(公告)日：2014-07-02
申请号：KR1020120146647
申请日：2012-12-14
Applicant: 한국전자통신연구원
IPC: H04N19/00
CPC classification number: H04N19/436 , H04N19/503 , H04N19/96
Abstract: The present invention discloses a method and an apparatus for encoding an image through a dynamic screen partition size allocation scheme. The method for encoding an image includes the steps of acquiring information on the number of threads that can be simultaneously processed; spatially partitioning an input image based on the number of the threads; and encoding the partitioned regions in parallel. The partitioning step includes a step of estimating a time to perform the encoding in order to maintain an approximately uniform encoding time for the partitioned regions and determining an image partition size based on the estimated encoding time. Accordingly, the screen partition size is dynamically allocated, thereby minimizing the difference in execution rate between the threads and improving the whole video encoding rate.
Abstract translation: 本发明公开了一种通过动态屏幕分区大小分配方案对图像进行编码的方法和装置。 用于编码图像的方法包括以下步骤：获取关于可以同时处理的线程数量的信息; 基于线程的数量对输入图像进行空间分割; 并且并行地对分割区域进行编码。 分割步骤包括估计执行编码的时间以便维持分割区域的大致均匀的编码时间并且基于估计的编码时间确定图像分区大小的步骤。 因此，屏幕分区大小被动态分配，从而最小化线程之间执行速率的差异并提高整个视频编码速率。
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公开(公告)号：KR101404251B1
公开(公告)日：2014-06-09
申请号：KR1020100088724
申请日：2010-09-10
Applicant: 한국전자통신연구원
CPC classification number: H04N21/44008 , G06Q30/02 , H04N21/4126 , H04N21/47815 , H04N21/8358
Abstract: 본 발명은 컨텐츠의 부가서비스 정보를 보조 단말기에 표시하는 시스템 및 방법에 관한 것으로서, 보조 단말기는 외부 장치에서 출력되는 컨텐츠로부터 일부분의 컨텐츠를 추출하고, 상기 추출된 일부분의 컨텐츠로부터 적어도 하나 이상의 특징정보를 분석하며, 상기 분석된 특징정보를 이용하여, 선정된 서버로부터 상기 컨텐츠에 대응하는 부가서비스 정보를 수신하는 구성을 개시한다. 또한, 상기 부가서비스 정보의 제공을 위해서 선정된 서버는, 상기 특징정보 및 상기 부가서비스 정보를 연관지어 저장한다.
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公开(公告)号：KR101353766B1
公开(公告)日：2014-01-27
申请号：KR1020110115660
申请日：2011-11-08
Applicant: 한국전자통신연구원
Abstract: 초고해상도 비디오 비트스트림 분석 장치가 개시된다. 초고해상도 비디오 비트스트림 분석 장치는 초고해상도 비디오와 관련된 부호화된 비디오 비트스트림, 초고해상도 비디오의 부호화 정보 및 초고해상도 비디오의 원본 정보를 수신하는 수신부; 및 상기 부호화 정보와 원본 정보를 이용하여 비디오의 원본 영상과 부호화 정보를 표시하는 인터페이스를 포함할 수 있다.
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公开(公告)号：KR1020130112448A
公开(公告)日：2013-10-14
申请号：KR1020120034836
申请日：2012-04-04
Applicant: 한국전자통신연구원 , 고려대학교 산학협력단
IPC: H04N19/00
CPC classification number: H04N19/37 , H04N19/124 , H04N19/177
Abstract: PURPOSE: A bit rate control method and a device thereof are provided to perform real time bit rate control for encoding an ultra definition video by considering a hierarchical encoding structure. CONSTITUTION: A bit rate control unit allocates a bit amount for an intra section (S430). The bit rate control unit allocates a bit amount for a Group Of Picture (GOP) (S440). The bit rate control unit allocates a bit amount by frame (S450). The bit rate control unit applies a bit amount allocation weighted value to each hierarchy level by using a relative ratio of each result bit amount after performing initial frame encoding to each frame type/hierarchy level by using an initial quantization parameter. [Reference numerals] (AA) Start; (BB,DD,FF) No; (CC,EE,GG) Yes; (HH) End; (S410) Determine an initial quantization parameter; (S420) Encode an I frame; (S430) Allocate a bit amount for an intra section; (S440) Allocate a bit amount for a GOP; (S450) Control a bit rate by frame; (S460) Has the current GOP ended ?; (S470) Has the current intra section ended ?; (S480) Has an image encoding process ended ?
Abstract translation: 目的：提供比特率控制方法及其装置，以通过考虑分层编码结构来执行用于对超清晰度视频进行编码的实时比特率控制。 构成：比特率控制单元分配内部区段的比特量（S430）。 比特率控制单元为图像组（GOP）分配比特量（S440）。 比特率控制单元逐帧分配（S450）。 比特率控制单元通过使用初始量化参数，通过使用对每个帧类型/层级进行初始帧编码后的每个结果比特量的相对比率，对每个层级进行比特量分配加权值。 （附图标记）（AA）开始; （BB，DD，FF）否; （CC，EE，GG）是; （HH）结束; （S410）确定初始量化参数; （S420）编码I帧; （S430）分配内部段的位数; （S440）分配GOP的位量; （S450）逐帧控制比特率; （S460）当前GOP是否结束？ （S470）当前内部部分是否结束？ （S480）图像编码处理是否结束？
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公开(公告)号：KR1020130107611A
公开(公告)日：2013-10-02
申请号：KR1020120029527
申请日：2012-03-22
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/103
Abstract: PURPOSE: An image encoding/decoding method and an apparatus using the same are provided to reduce a calculation complexity by dividing an encoding object image into minimum encoding units and performing integration. CONSTITUTION: An image is divided into minimum encoding units. An image encoding unit (100) performs an encoding in an intra-mode or an inter-mode about an inputted image. An intra-prediction part (120) performs a spatial prediction by using a pixel value of an encoded block around a current block. A movement prediction part (111) obtains the input block and movement vector of a reference image which is stored in a reference image buffer (190). A subtractor (125) generates a residual block by a difference between the input block and a generated prediction block. [Reference numerals] (111) Movement prediction part; (112) Movement compensation part; (120) Intra-prediction part; (130) Converting part; (140) Quantization part; (150) Entropy encodement part; (160) Reverse quantization part; (170) Reverse converting part; (180) Filtering part; (190) Reference image buffer; (AA) Input image; (BB) Inter; (CC) Intra; (DD) Bit stream
Abstract translation: 目的：提供一种图像编码/解码方法和使用该图像编码/解码方法的装置，以通过将编码对象图像划分为最小编码单元并执行集成来减少计算复杂度。 构成：将图像分为最小编码单位。 图像编码单元（100）执行关于输入图像的帧内模式或帧间模式的编码。 帧内预测部（120）通过使用当前块周围的编码块的像素值来进行空间预测。 运动预测部（111）获取存储在基准图像缓冲器（190）中的参照图像的输入块和移动矢量。 减法器（125）通过输入块和生成的预测块之间的差产生残差块。 [111]运动预测部; （112）运动补偿部分; （120）预测内部部分; （130）转换零件; （140）量化部分; （150）熵编码部分; （160）反向量化部分; （170）反向转换部; （180）过滤部件; （190）参考图像缓冲器; （AA）输入图像; （BB）国际; （CC）内 （DD）位流
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Patent Agency Ranking
公开(公告)号：KR1020130107414A
公开(公告)日：2013-10-02
申请号：KR1020120029156
申请日：2012-03-22
Applicant: 한국전자통신연구원
CPC classification number: H04N19/103 , H04N19/176 , H04N19/567
Abstract: PURPOSE: An image encoding method is provided to reduce complexity by determining a final encoding mode of an input block based on a rate-distortion based encoding cost. CONSTITUTION: An image encoder acquires each prediction block of multiple candidate encoding modes (S310). The image encoder generates a difference block based on a difference between the prediction block and the input block (S320). The image encoder determines whether the difference block is divided and converted or not. The image encoder determines the division conversion size of the difference block (S340). The image encoder generates a division conversion block by dividing and converting the difference block into a division conversion size (S350). [Reference numerals] (AA) Operate division conversion; (BB) Not operate division conversion; (S310) Acquire a prediction block; (S320) Generate a difference block; (S330) Determine whether the difference block is converted and divided or not; (S340) Determine the division conversion size; (S350) Generate a division conversion block; (S360,CC) Calculate cost of encodement; (S370,DD) Determine final encodement mode
Abstract translation: 目的：提供一种通过基于基于速率失真的编码成本来确定输入块的最终编码模式来降低复杂度的图像编码方法。 构成：图像编码器获取多个候选编码模式的每个预测块（S310）。 图像编码器基于预测块和输入块之间的差异来生成差分块（S320）。 图像编码器确定差分块是否被分割和转换。 图像编码器确定差分块的分割转换大小（S340）。 图像编码器通过将差分块分割并转换成分割转换大小来生成分割转换块（S350）。 （附图标记）（AA）操作分割转换; （BB）不操作分割转换; （S310）获取预测块; （S320）生成差分块; （S330）确定差分块是否被转换和分割; （S340）确定分割转换大小; （S350）生成分割转换块; （S360，CC）计算编码成本; （S370，DD）确定最终编码模式
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公开(公告)号：KR1020130107413A
公开(公告)日：2013-10-02
申请号：KR1020120029155
申请日：2012-03-22
Applicant: 한국전자통신연구원
IPC: H04N19/567 , H04N19/134 , H04N19/30 , H04N19/137
CPC classification number: H04N19/567 , H04N19/00 , H04N19/12 , H04N19/134 , H04N19/137 , H04N19/395
Abstract: PURPOSE: A high speed image encoding method is provided to set up a threshold value which determines an encoding mode by predicting a rate-distortion optimum mode based on a sum of absolute transformed differences (SATD). CONSTITUTION: An image encoder calculates each sum of absolute transformed differences (SATD) of multiple candidate modes by using a Hadamard transformation (S310). The image encoder predicts a rate-distortion optimum mode based on the SATD (S320). The image encoder calculates a rate-distortion cost of a mode which has the smallest SATD value among multiple candidate modes (S360). The image encoder calculates a rate-distortion cost of a candidate mode except the mode which has the smallest SATD value. The image encoder determines a final encoding mode by comparing the rate-distortion cost of the candidate mode (S380). [Reference numerals] (AA) Yes; (BB) No; (S310) SATD calculation; (S320) Rate-distortion optimal mode estimation; (S330) Determination reference value calculation; (S340) Critical value setting; (S350) Determination reference value
Abstract translation: 目的：提供一种高速图像编码方法，通过基于绝对变换差（SATD）的和来预测速率 - 失真最优模式来建立阈值来确定编码模式。 构成：图像编码器通过使用Hadamard变换来计算多个候选模式的绝对变换差（SATD）的总和（S310）。 图像编码器基于SATD预测速率失真最优模式（S320）。 图像编码器计算在多个候选模式中具有最小SATD值的模式的速率失真成本（S360）。 除了具有最小SATD值的模式之外，图像编码器计算候选模式的速率失真成本。 图像编码器通过比较候选模式的速率 - 失真成本来确定最终编码模式（S380）。 （附图标记）（AA）是; （BB）否 （S310）SATD计算; （S320）速率失真最优模式估计; （S330）测定参考值计算; （S340）临界值设定; （S350）确定参考值<关键值; （S360）速率失真成本计算; （S370，S380）最终编码模式确定
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公开(公告)号：KR1020130095159A
公开(公告)日：2013-08-27
申请号：KR1020120070777
申请日：2012-06-29
Applicant: 한국전자통신연구원
IPC: H04N19/00
CPC classification number: H04N19/169 , G06F3/14
Abstract: PURPOSE: A method and apparatus for analyzing bitstream are provided to effectively display the encoded information of bitstream by analyzing the bitstream encoded by high efficiency video coding (HEVC) technology. CONSTITUTION: A method for analyzing bitstream is as follows. A graphic user interface (GUI) of an HEVC bitstream analyzer provides the encoding parameter and statistical information of an image at the left region (610) of a screen. A user selects a decoded image (630) through a thumbnail (620) of the GUI. The encoded information of the image is provided to the user through the decoded image. The GUI provides a coding unit (CU) searching function which satisfies the encoded information and option of the CU selected by the user through the right region (640) of the screen. [Reference numerals] (AA) Provide the encoding parameter and statistical information of an image; (BB) Provide user-friendly encoded information in a decoded image; (CC) Provide a CU searching function which satisfies the encoded information and option of a CU selected in a screen; (DD) Provide a thumbnail of the decoded image
Abstract translation: 目的：提供一种用于分析比特流的方法和装置，以通过分析由高效率视频编码（HEVC）技术编码的比特流来有效地显示比特流的编码信息。 构成：分析比特流的方法如下。 HEVC比特流分析器的图形用户界面（GUI）提供屏幕左侧区域（610）处的图像的编码参数和统计信息。 用户通过GUI的缩略图（620）选择解码图像（630）。 图像的编码信息通过解码图像被提供给用户。 GUI提供了编码单元（CU）搜索功能，其满足用户通过屏幕的右侧区域（640）选择的CU的编码信息和选项。 （附图标记）（AA）提供图像的编码参数和统计信息; （BB）在解码图像中提供用户友好的编码信息; （CC）提供CU搜索功能，其满足在屏幕中选择的CU的编码信息和选项; （DD）提供解码图像的缩略图
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公开(公告)号：KR1020130085376A
公开(公告)日：2013-07-29
申请号：KR1020130002886
申请日：2013-01-10
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/103 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/567
Abstract: PURPOSE: A coding mode determining method and an apparatus thereof are provided to skip an intra prediction process or an intra coding process about a current block according to the satisfaction of a condition, thereby reducing the complexity of an encoding device. CONSTITUTION: An encoding device determines whether intra prediction about a current block is skipped or not. In case the intra prediction is determined to be skipped, the encoding device determines coding modes except an intra mode from all coding modes of the current block as multiple coding mode candidates. The encoding device determines a corresponding coding mode among the coding mode candidates and encodes the current block by performing a rate distortion optimization (RDO) process about the coding mode candidates (S310,S320). [Reference numerals] (S310) Determine a decoding module of a current block; (S320) Conduct a decoding of the current block
Abstract translation: 目的：提供一种编码模式确定方法及其装置，以根据条件的满足来跳过关于当前块的帧内预测处理或帧内编码处理，从而降低编码装置的复杂度。 构成：编码装置确定是否跳过关于当前块的帧内预测。 在帧内预测被确定为跳过的情况下，编码装置将当前块的所有编码模式之外的帧内模式之外的编码模式确定为多个编码模式候选。 编码装置通过对编码模式候补进行速率失真优化（RDO）处理来确定编码模式候补之间的对应编码模式，并对当前块进行编码（S310，S320）。 （参考号）（S310）确定当前块的解码模块; （S320）对当前块进行解码
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公开(公告)号：KR1020130050540A
公开(公告)日：2013-05-16
申请号：KR1020110115660
申请日：2011-11-08
Applicant: 한국전자통신연구원
CPC classification number: H04N19/147 , H04N19/184 , H04N19/44
Abstract: PURPOSE: A super-resolution video bit stream analyzing device is provided to reduce unnecessary time by analyzing an encoded video bit stream of a super-resolution video. CONSTITUTION: A video decoder(103) extracts texture information by decoding a video bit stream. An interface(102) displays encoding information and an original image of a video by using original information and the encoding information. The interface displays the extracted texture information according to the need. Encoding information database(104) stores the encoding information derived through a decoding process. A super-resolution video is provided in a YUV type. [Reference numerals] (101) Super-resolution video bit stream analyzing device; (102) Interface; (103) Video decoder; (104) Encoding information DB; (105) Original video data; (AA) Encoded video bit stream; (BB) Ending information; (CC) Original video information
Abstract translation: 目的：提供超分辨率视频比特流分析装置，通过分析超分辨率视频的编码视频比特流来减少不必要的时间。 构成：视频解码器（103）通过解码视频比特流来提取纹理信息。 接口（102）通过使用原始信息和编码信息来显示视频的编码信息和原始图像。 界面根据需要显示提取的纹理信息。 编码信息数据库（104）存储通过解码处理得到的编码信息。 以YUV类型提供超分辨率视频。 （附图标记）（101）超分辨率视频比特流分析装置; （102）接口; （103）视频解码器; （104）编码信息DB; （105）原始视频数据; （AA）编码视频比特流; （BB）结束信息; （CC）原始视频信息
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