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公开(公告)号：KR1020110073257A
公开(公告)日：2011-06-29
申请号：KR1020100121200
申请日：2010-12-01
Applicant: 한국전자통신연구원
CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513
Abstract: PURPOSE: An image encoding/decoding apparatus and a method thereof are provided to effectively predict an MV in the compression and encoding of an image. CONSTITUTION: In case the arbitrary MV(Motion Vector) of a current block is predicted within an image, an MV prediction unit(100) performs the prediction of the MV with at least one of the vector information of an MV corresponding to a peripheral block and the vector information of the previous MV of the current block. Difference decision units(201,202) decide difference information about the MV of the current block on the basis of the predicted MV and the actual MV of the current block.
Abstract translation: 目的：提供图像编码/解码装置及其方法，以有效地预测图像的压缩和编码中的MV。 构成：在图像内预测当前块的任意MV（运动矢量）的情况下，MV预测单元（100）使用对应于周边块的MV的向量信息中的至少一个来执行MV的预测 以及当前块的先前MV的矢量信息。 差分决定单元（201,202）基于预测MV和当前块的实际MV来决定当前块的MV的差分信息。
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公开(公告)号：KR1020110068793A
公开(公告)日：2011-06-22
申请号：KR1020100050037
申请日：2010-05-28
Applicant: 한국전자통신연구원
IPC: H04N19/11 , H04N19/174 , H04N19/51
Abstract: PURPOSE: An image encoding/decoding apparatus and method thereof are provided to efficiently predict an encoding parameter from a block within a slide in which a target block is included and to increase image compression performance. CONSTITUTION: A control unit determines a reference block for the prediction of an in-screen encoding parameter(S210). The control unit predicts the encoding parameter through the encoding parameter of the reference block(S220). The control unit performs entropy encoding about the encoding parameter through the encoding parameter of the reference block(S230).
Abstract translation: 目的：提供一种图像编码/解码装置及其方法，用于从包含目标块的幻灯片内的块中有效地预测编码参数，并增加图像压缩性能。 构成：控制单元确定用于预测屏幕内编码参数的参考块（S210）。 控制单元通过参考块的编码参数预测编码参数（S220）。 控制单元通过参考块的编码参数执行关于编码参数的熵编码（S230）。
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公开(公告)号：KR1020110068792A
公开(公告)日：2011-06-22
申请号：KR1020100050034
申请日：2010-05-28
Applicant: 한국전자통신연구원
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: PURPOSE: An adaptive image encoding apparatus and method thereof are provided to adaptively select an encoding parameter of an encoding target block from a reference block and to increase image compression performance. CONSTITUTION: A control unit determines a reference block for the coding of a current block(S110). The control unit determines an encoding parameter of the reference block(S120). The control unit determines the property of the reference block based on the encoding parameter of the reference block(S130). The control unit encodes the current block through a determined encoding parameter(S140).
Abstract translation: 目的：提供一种自适应图像编码装置及其方法，用于从参考块自适应地选择编码目标块的编码参数并增加图像压缩性能。 构成：控制单元确定用于当前块的编码的参考块（S110）。 控制单元确定参考块的编码参数（S120）。 控制单元基于参考块的编码参数确定参考块的属性（S130）。 控制单元通过确定的编码参数对当前块进行编码（S140）。
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公开(公告)号：KR1020100112247A
公开(公告)日：2010-10-19
申请号：KR1020090030661
申请日：2009-04-09
Applicant: 한국전자통신연구원
IPC: H04N19/11
CPC classification number: H04N19/11 , H04N19/176
Abstract: PURPOSE: An apparatus and a method for predicting most probable mode in an intra prediction system using prediction mode information are provided to improve encoding efficiency and reduce the bit rate. CONSTITUTION: A peripheral block read unit(402) reads each prediction mode and a corresponding location with a current block. A weighted value allocation unit(404) uses a relative weighted value in consideration of the relative position of the current block and the weighted value is assigned to the peripheral block each prediction mode.
Abstract translation: 目的：提供一种使用预测模式信息预测帧内预测系统中最可能模式的装置和方法，以提高编码效率并降低比特率。 构成：外围块读取单元（402）读取每个预测模式和与当前块相对应的位置。 加权值分配单元（404）考虑到当前块的相对位置使用相对加权值，并且将加权值分配给外围块每个预测模式。
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225.发明公开
公开(公告)号：KR1020100038060A
公开(公告)日：2010-04-12
申请号：KR1020090093127
申请日：2009-09-30
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/12 , H04N19/625
CPC classification number: G06T9/007 , G06T9/004 , H04N7/17318 , H04N19/12 , H04N19/132 , H04N19/147 , H04N19/149 , H04N19/19 , H04N19/46 , H04N19/70 , H04N21/236 , H04N19/625 , H04N19/63
Abstract: PURPOSE: Encoding/decoding apparatus and method using DCT/DST selectively are provided to increase a compression ratio of an image block by performing inter/intra prediction between images for a fixed size blocks and then conversion and quantization. CONSTITUTION: A first conversion unit(220) converts a target image into a first conversion coefficient using DCT(Discrete Cosine Transform). A second conversion unit(230) converts the target image into a second conversion coefficient using DST(Discrete Sine Transform). A conversion method decision unit(260) selects the first or second conversion coefficients as a conversion coefficients for the target image. The first conversion unit creates a first decoding image for the target image based on the first conversion coefficient. The second conversion unit creates a decoding image for the target image based on the second conversion coefficient.
Abstract translation: 目的：选择性地使用DCT / DST的编码/解码装置和方法被提供以通过对固定大小的块进行图像之间的帧间/帧内预测，然后进行转换和量化来增加图像块的压缩比。 构成：第一转换单元（220）使用DCT（离散余弦变换）将目标图像转换为第一转换系数。 第二转换单元（230）使用DST（离散正弦变换）将目标图像转换为第二转换系数。 转换方法决定单元（260）选择第一或第二转换系数作为目标图像的转换系数。 第一转换单元基于第一转换系数创建用于目标图像的第一解码图像。 第二转换单元基于第二转换系数创建目标图像的解码图像。
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Patent Agency Ranking
公开(公告)号：KR1020100018802A
公开(公告)日：2010-02-18
申请号：KR1020080077470
申请日：2008-08-07
Applicant: 한국전자통신연구원
IPC: H04N13/00 , H04N21/236
CPC classification number: H04N19/597 , H04N19/30 , H04N21/236
Abstract: PURPOSE: A method for providing free-view point video contents through scalable depth coding is provided to code depth information based on importance and enhance efficiency of video content. CONSTITUTION: A receiver(110) receives video information and depth information. A determination unit determines importance on received depth information. A depth information encoding unit(120) encodes depth information based on importance of the depth information. The video information encoding unit(130) encodes video information by referring coded depth information. A multiplexing unit(150) multiplexes encoded depth information and encoded video information.
Abstract translation: 目的：提供一种通过可伸缩深度编码提供自由观看点视频内容的方法，根据重要性对视频内容的重要性进行编码深度信息，提高视频内容的效率。 构成：接收器（110）接收视频信息和深度信息。 确定单元确定对所接收的深度信息的重要性。 深度信息编码单元（120）根据深度信息的重要性对深度信息进行编码。 视频信息编码单元（130）通过参考编码深度信息对视频信息进行编码。 复用单元（150）对编码的深度信息和编码的视频信息进行复用。
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公开(公告)号：KR1020100007728A
公开(公告)日：2010-01-22
申请号：KR1020090060478
申请日：2009-07-03
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
CPC classification number: H04N19/00
Abstract: PURPOSE: A filter for deblocking an intra macro block and a filtering method therefor are provided to perform adaptive deblocking filtering using a video block unit quantization parameter in a macro block boundary included in the intra macro block. CONSTITUTION: A filtering value generating unit(610) generates a filtering value based on an adjacent pixel value of the outermost pixel adjacent to a boundary of an intra macro block and a quantization parameter of the intra macro block. A deblocking filter(620) performs deblocking filtering on the outermost pixel based on the filtering value. If the filtering value is larger than a positive number critical value, the filtering value generating unit determines the positive critical value as the filtering value.
Abstract translation: 目的：提供一种用于去块内部宏块的滤波器及其滤波方法，以使用在宏块内包含的宏块边界中的视频块单位量化参数进行自适应去块滤波。 构成：滤波值生成部（610）基于与宏块内部的宏块的边界相邻的最外边的像素的相邻像素值和宏块的量化参数，生成滤波值。 去块滤波器（620）基于滤波值对最外面的像素进行去块滤波。 如果滤波值大于正数临界值，则滤波值生成单元将正临界值确定为滤波值。
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公开(公告)号：KR1020090075608A
公开(公告)日：2009-07-08
申请号：KR1020080071562
申请日：2008-07-23
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04N19/51
CPC classification number: H04N19/59 , H04N19/176
Abstract: A sub-sampling base intra predictive encoding system for a video compression and a method for providing higher compression efficiency are provided to increase compression efficiency by encoding the divided sub-screen image. An image dividing/coding order determiner(100) determines a coded order of the divided sub-screen image block. An intra predictor(121) produces a first prediction image block about the first image block. A differential image block coder produces the first subtractive color block corresponding to the pixel difference between the first image block and the generated first prediction image block. The generated first subtractive color block is encoded into the encoder. A differential image block decoder(124) decodes the encoded first subtractive color block.
Abstract translation: 提供了用于视频压缩的子采样基本帧内预测编码系统和用于提供更高压缩效率的方法，以通过对分割的子屏幕图像进行编码来提高压缩效率。 图像分割/编码顺序确定器（100）确定划分的子屏幕图像块的编码顺序。 内部预测器（121）产生关于第一图像块的第一预测图像块。 差分图像块编码器产生与第一图像块和所生成的第一预测图像块之间的像素差对应的第一减色块。 所生成的第一减色块被编码到编码器中。 差分图像块解码器（124）对编码的第一减色块进行解码。
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公开(公告)号：KR100867995B1
公开(公告)日：2008-11-10
申请号：KR1020070001386
申请日：2007-01-05
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04N19/91
Abstract: 본 발명은 동영상 데이터 인코딩/디코딩 방법 및 그 장치를 개시한다.
본 발명의 동도을 인코더와 디코더에 포함시켜, 인코더에서 입력 동영상에 대한 벡터와 이 코드북상의 벡터들 중 가장 유사한 벡터의 인덱스만을 부호화하고, 디코더에서 이를 복호화하는 것을 특징으로 한다. 따라서 압축률을 높이고 디코더의 복잡도를 감소시킬 수 있다.
잔여 변환 계수, 인덱스, 코드북, 벡터, 최적 벡터 탐색-
公开(公告)号：KR100846870B1
公开(公告)日：2008-07-16
申请号：KR1020060095786
申请日：2006-09-29
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 세종대학교산학협력단
Inventor： 정세윤 , 최해철 , 서정일 , 백승권 , 장인선 , 김재곤 , 문경애 , 장대영 , 홍진우 , 김진웅 , 안창범 , 오승준 , 심동규 , 박호종 , 이영렬 , 전수열
IPC: H04N19/60
Abstract: 본 발명은 다수의 기본 블록들의 다차원 구성을 통한 다단계 변환 장치 및 그 방법에 관한 것이다. 본 발명은 블록 단위의 원영상 또는 차영상의 DCT 변환계수를 사용하는 비디오 데이터 압축의 성능을 향상시키기 위하여 인접한 블록들의 변환 계수들을 모아서 추가적인 변환을 수행함으로써, 압축 효율을 향상시키기 위한, 다수의 기본 블록들의 다차원 구성을 통한 다단계 변환 장치 및 그 방법을 제공하는데 그 목적이 있다.
본 발명은 입력되는 영상데이터를 DCT 변환하고, 상기 DCT 변환된 소정크기의 블록 R개(R은 2이상의 자연수)를 선택하는 단계; 상기 선택된 R개의 각 블록에서 동일한 주파수의 변환계수들을 1차원으로 배열하는 단계; 및 상기 1차원으로 배열된 변환계수들을 다시 일차원 변환하는 단계;를 포함하는 다수의 기본블록들의 다차원 구성을 통한 다단계 변환 방법을 개시한다.
다차원 변환, 다단계 변환, 다차원 구성, 이차원 변환
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