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41.发明公开
公开(公告)号：KR1020110015356A
公开(公告)日：2011-02-15
申请号：KR1020090128064
申请日：2009-12-21
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단 , 한국과학기술원
Inventor： 임성창 , 이하현 , 정세윤 , 조숙희 , 최해철 , 김휘용 , 김종호 , 이진호 , 최진수 , 홍진우 , 심동규 , 오승준 , 박광훈 , 김문철 , 황능주 , 박시내
IPC: H04N19/60 , H04N19/176
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: PURPOSE: A video encoding/decoding device using an adaptive conversion encoding/decoding region based on characteristic of a differential signal and a method thereof are provided not to include a boundary region signal inside a converting and encoding block, thereby increasing energy compaction of a signal after converting and encoding. CONSTITUTION: A signal divider(131) divides a differential signal of an image block into a non boundary area signal and a boundary area signal. A converting and encoding unit(133) performs a DCT(Discrete Cosine Transform) of the non boundary area signal. A quantization unit(135) quantizes the DCT-converted non-boundary area signal in a frequency domain. A spatial area quantization unit(137) quantizes the boundary area signal in a space area.
Abstract translation: 目的：提供一种使用基于差分信号的特性的自适应转换编码/解码区域的视频编码/解码装置及其方法，其不包括转换和编码块内的边界区域信号，从而增加信号的能量压缩 转换和编码后。 构成：信号分配器（131）将图像块的差分信号划分为非边界区域信号和边界区域信号。 转换和编码单元（133）执行非边界区域信号的DCT（离散余弦变换）。 量化单元（135）对频域中的DCT转换的非边界区域信号进行量化。 空间区域量化单元（137）对空间区域中的边界区域信号进行量化。
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公开(公告)号：KR1020180008844A
公开(公告)日：2018-01-24
申请号：KR1020180004901
申请日：2018-01-15
IPC: H04N19/61 , H04N19/30 , H04N19/136 , H04N19/124 , H04N19/119 , H04N19/176
CPC classification number: H04N19/61 , H04N19/119 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/30
Abstract: 변환부호화방법및 장치그리고, 복호화방법및 장치가제공된다. 변환부호화방법은, 미리정의되거나또는적응적으로결정된변환타입정보에따라차분블록을변환할수 있다. 그리고, 변환된차분블록들중 어느하나를최종블록으로결정할수 있다.
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Patent Agency Ranking
公开(公告)号：KR101446286B1
公开(公告)日：2014-10-08
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: 본 발명의 일 실시예에 따른 쿼드 트리 구조를 이용하는 영상 복호화 방법은 부호화 단위에서 통합 코드 블록 플래그 정보를 복호화 하는 단계와; 상기 통합 코드 블록 플래그 정보와 변환 단위의 크기 정보를 기초로 분할 정보 플래그를 복호화 하는 단계와; 상기 분할 정보 플래그를 기초로 상기 변환 단위가 추가로 분할되지 않는 경우 상기 변환 단위의 코드 블록 플래그 정보를 복호화 하는 단계를 포함하고, 상기 분할 정보 플래그를 복호화 하는 단계는 상기 변환 단위의 변환 계수가 존재하지 않는 경우, 상기 분할 정보 플래그를 복호화 하지 않을 수 있다. 따라서, 부/복호화 효율을 높이고 복잡도를 감소시킬 수 있다.
Abstract translation: 公开了使用两种候选帧内预测模式的帧内预测模式的编码/解码方法及其使用装置。 帧内预测模式的解码方法包括以下步骤：基于1比特信息确定本预测单元的帧内预测模式是否与第一候选帧内预测模式相同，或者作为第二候选帧内预测模式 ; 并且在所述第一候选帧内预测模式和所述第二候选帧内预测模式中，基于附加的1比特信息确定所述候选帧内预测模式与所述当前预测单元的帧内预测模式相同，如果帧内预测 本预测单元的模式与第一候选帧内预测模式或第二候选帧内预测模式中的至少一个相同，并且解码本预测单元的帧内预测模式。 因此，本发明提高了编码/解码效率，降低了复杂度。
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公开(公告)号：KR1020130086334A
公开(公告)日：2013-08-01
申请号：KR1020130083743
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 encoding method using a quad tree and a storage medium readable by a computer are provided to increase the image encoding efficiency by decoding the conversion unit information using a quad tree. CONSTITUTION: An image decoder decodes pattern information on the basis of the conversion unit information integrated flag information (S1200). The image decoder decodes division code block flag corresponding to a pattern or division information flag information on the basis of the decoded pattern information (S1210). [Reference numerals] (AA) Start; (BB) End; (S1200) Decode pattern information on the basis of conversion unit information integrated flag information in a conversion unit; (S1210) Decode division code block flag corresponding to a pattern or division information flag on the basis of the decoded pattern information
Abstract translation: 目的：提供使用四叉树的图像编码方法和计算机可读的存储介质，以通过使用四叉树对转换单元信息进行解码来提高图像编码效率。 构成：图像解码器基于转换单位信息综合标志信息解码图案信息（S1200）。 图像解码器基于解码图案信息解码对应于图案或分割信息标志信息的分割码块标志（S1210）。 （附图标记）（AA）开始; （BB）结束; （S1200）基于转换单元中的转换单位信息积分标志信息对图案信息进行解码; （S1210）基于解码图案信息对与图案或分割信息标志相对应的分割码块标志进行解码
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公开(公告)号：KR1020120035126A
公开(公告)日：2012-04-13
申请号：KR1020110100675
申请日：2011-10-04
IPC: H04N7/24
CPC classification number: H04N19/44 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/64 , H04N19/70
Abstract: PURPOSE: A block information coding/decoding method using quad tree and a device thereof are provided to express conversion factor information and division information in a current conversion unit by using integrated code flag information and division information flag. CONSTITUTION: An image decoding device decodes integrated code block flag information of the current conversion unit(S1100). The image decoding device decodes the division information flag based on the size information of the current conversion unit and the integrated code flag information(S1110). When the integrated code block flag and the conversion unit information combining flag are used, the processes can be changed.
Abstract translation: 目的：提供使用四叉树的块信息编码/解码方法及其装置，通过使用积分码标志信息和分割信息标志来表示当前转换单元中的转换因子信息和分割信息。 构成：图像解码装置对当前转换部的集成码块标志信息进行解码（S1100）。 图像解码装置根据当前转换单元的大小信息和积分码标志信息解码分割信息标志（S1110）。 当使用积分代码块标志和转换单元信息组合标志时，可以改变处理。
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公开(公告)号：KR1020120034042A
公开(公告)日：2012-04-09
申请号：KR1020110099680
申请日：2011-09-30
IPC: H04N19/137 , H04N19/51
CPC classification number: H04N19/00733 , H04N19/51 , H04N19/137 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/70
Abstract: PURPOSE: A method for encoding/decoding an image using error compensation and a device thereof are provided to minimize the capacity of transmission data and increase the efficiency of image encoding/decoding. CONSTITUTION: A decoder derives a pixel value of a prediction block for the current block from the previously decoded blocks(S310). The decoder derives a sample value of an error compensation block for the current block(S320). The decoder derives a pixel value of the final prediction block for the current block by using the pixel value of the prediction block and the error compensation value(S330).
Abstract translation: 目的：提供一种使用误差补偿的图像编码/解码方法及其装置，以最小化传输数据的容量并提高图像编码/解码的效率。 构成：解码器从先前解码的块导出当前块的预测块的像素值（S310）。 解码器导出当前块的误差补偿块的采样值（S320）。 解码器通过使用预测块的像素值和误差补偿值来导出当前块的最终预测块的像素值（S330）。
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公开(公告)号：KR1020120008436A
公开(公告)日：2012-01-30
申请号：KR1020110048082
申请日：2011-05-20
IPC: H04N19/105 , H04N19/11
CPC classification number: H04N19/11 , H04N19/176 , H04N19/30
Abstract: PURPOSE: An encoding method for hierarchical variable block conversion and a device thereof, and a decoding method and a device thereof are provided to convert and encode a differential block based on conversion type information. CONSTITUTION: An encoding device generates a plurality of prediction blocks by prediction encoding of encoding blocks according to a plurality of prediction mode information(104). The encoding device generates a plurality of differential blocks by the prediction blocks and the encoding blocks(105). The encoding device converts the differential blocks according to predefined conversion type information or adaptively determined conversion type information(106). The encoding device determines one of the converted differential blocks as a final block(107).
Abstract translation: 目的：提供一种用于分层可变块转换的编码方法及其装置，以及其解码方法及其装置，用于基于转换类型信息对差分块进行转换和编码。 构成：编码装置通过根据多个预测模式信息（104）对编码块进行预测编码来生成多个预测块。 编码装置通过预测块和编码块（105）生成多个差分块。 编码装置根据预定义的转换类型信息或自适应确定的转换类型信息（106）来转换差分块。 编码装置将转换的差分块之一确定为最终块（107）。
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