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公开(公告)号：KR101630871B1
公开(公告)日：2016-06-16
申请号：KR1020090007171
申请日：2009-01-29
Applicant: 삼성전자주식회사 , 성균관대학교산학협력단
IPC: H04N19/11 , H04N19/147 , H04N19/51
Abstract: 본발명에따른영상부호화를위한인트라예측모드결정방법은, 입력된부호화블록의인트라예측모드들에대하여소정의코스트(Cost) 연산을수행하는과정과, 상기수행된코스트연산에따라코스트가작은순서로상기인트라예측모드들의순위(RANK)를정렬하는과정과, 상기정렬된순위에따라비트율-왜곡치-복잡도비용을계산하여상기계산된비트율-왜곡치-복잡도비용들을근거로인트라예측모드를결정하는과정을포함한다.
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公开(公告)号：KR101577440B1
公开(公告)日：2015-12-15
申请号：KR1020080136030
申请日：2008-12-29
Applicant: 삼성전자주식회사
CPC classification number: G09G5/391 , G06T1/00 , H04N19/102 , H04N19/156 , H04N19/172 , H04N19/59 , H04N19/60
Abstract: 본발명은디지털이미지처리장치에있어서, 제어부와, 이미지정보로부터고 해상도의이미지를디코딩하고, 상기디코딩된고 해상도이미지를표시부를통해출력하는디코더와, 상기표시부의크기및 해상도에따라, 상기이미지정보에포함된저해상도이미지인썸네일(thumbnail) 이미지를리사이징하고, 상기리사이징된썸네일이미지를상기표시부를통해출력하는리사이징블록과, 상기리사이징된상기썸네일이미지를표시하고, 상기썸네일이미지를상기디코딩된고 해상도의이미지로치환하는상기표시부를포함한다.
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公开(公告)号：KR101420878B1
公开(公告)日：2014-07-21
申请号：KR1020070119862
申请日：2007-11-22
Applicant: 삼성전자주식회사
IPC: H04N19/89
CPC classification number: H04N19/132 , H04N19/166 , H04N19/172 , H04N19/587 , H04N19/61 , H04N19/895
Abstract: 본 발명은 동영상 프레임의 선택적 프레임 오류 은폐 방법에 있어서, 동영상 프레임 수신중 오류 프레임을 수신한 경우, 오류 프레임이 I 프레임 다음에 수신되는 미리 설정된 수만큼의 프레임 이내의 프레임인지 판단하는 과정과, 오류 프레임이 I 프레임 다음에 수신되는 미리 설정된 수만큼의 프레임 이내의 프레임이 아닌 경우, 연속적인 오류 프레임의 개수가 미리 설정된 문턱값보다 큰지 판단하는 과정과, 연속적인 오류 프레임의 개수가 문턱값보다 크지 않은 경우, 미리 설정된 오류 은폐 기법을 사용하는 과정과, 오류 프레임이 I 프레임 다음에 수신되는 미리 설정된 수만큼의 프레임 이내의 프레임이거나, 연속적인 오류 프레임의 개수가 문턱값보다 큰 경우에는, 새로운 I 프레임이 수신될 때까지 오류 프레임 이전에 오류 없이 정상적으로 수� �된 프레임을 디스플레이하는 과정을 포함한다.
오류 은폐(Error Concealment), I 프레임, 프레임 프리즈(Frame freeze), 매크로 블록, 움직임 벡터-
公开(公告)号：KR1020090090232A
公开(公告)日：2009-08-25
申请号：KR1020080015566
申请日：2008-02-20
Applicant: 삼성전자주식회사 , 성균관대학교산학협력단
IPC: H04N19/51
CPC classification number: H04N7/26861 , H04N19/103 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/61
Abstract: A direct mode encoding/decoding method capable of selecting an optimum mode of direct modes in consideration of the correlation characteristic of the image are provided to perform more efficient mode code by reducing bit quantity by inducing motion vector. If one nxM block is inputted(S801), a backward reference time axis direct mode is predicted and cost about the predicted mode is obtained(S802). The forward reference time direct mode is predicted and the cost about the predicted mode is obtained(S803). A space axis direct mode is predicted and cost about the predicted mode is obtained(S804). The determined encoding mode is transmitted to the decoder(S805).
Abstract translation: 提供考虑到图像的相关特性来选择直接模式的最佳模式的直接模式编码/解码方法，以通过诱导运动矢量减少比特量来执行更有效的模式码。 如果输入了一个nxM块（S801），则预测到反向基准时间轴直接模式，并且获得关于预测模式的成本（S802）。 预测正向参考时间直接模式，并获得关于预测模式的成本（S803）。 预测空间轴直接模式，并且获得关于预测模式的成本（S804）。 将确定的编码模式发送到解码器（S805）。
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公开(公告)号：KR1020090084460A
公开(公告)日：2009-08-05
申请号：KR1020080010667
申请日：2008-02-01
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
CPC classification number: G06T7/143 , G06T7/12 , G06T7/194 , G06T2207/10016 , G06T2207/20092
Abstract: A method for estimating an object boundary of a moving picture is provided to estimate a boundary of a background and a user object during a video call or video communication. In the first frame of a moving picture, an initial object boundary is presumed so that an object and a background are divided(210). Each color probability density function is estimated about the divided object and background(220). A boundary strip having a predetermined width is generated around an object boundary of the previous frame along with the object boundary of a previous frame in a current frame. A coherence probability density function of the boundary strip is presumed(230). Energy minimization is performed(240).
Abstract translation: 提供了一种用于估计运动图像的对象边界的方法，用于在视频通话或视频通信期间估计背景和用户对象的边界。 在运动图像的第一帧中，假定初始对象边界使得对象和背景被分割（210）。 估计每个颜色概率密度函数关于分割的对象和背景（220）。 沿着当前帧中的前一帧的对象边界，围绕前一帧的对象边界产生具有预定宽度的边界条。 推测边界条带的相干概率密度函数（230）。 执行能量最小化（240）。
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Patent Agency Ranking
公开(公告)号：KR100876811B1
公开(公告)日：2009-01-09
申请号：KR1020070033221
申请日：2007-04-04
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
IPC: H04B7/26
Abstract: 본 발명은 핸드오프 수행 방법에 있어서, 전송측 장비의 어플리케이션 계층(Application layer)에서 인코딩시 중요한 정보를 구분하여 IP(Internet Protocol) 패킷의 미리 설정된 부위에 중요한 패킷이라는 정보를 마킹하는 과정과, 수신측 장비의 MAC 계층(Media Access Control layer)에서는 현재의 채널 정보를 바탕으로 기대되는 핸드오프 시점과 핸드오프 지연시간을 예측하며, 전송측 장비로부터 제공된 패킷의 마킹된 정보를 바탕으로 핸드오프를 가변적으로 수행하는 과정을 수행한다.
핸드오프, QoS, 패킷, I프레임-
公开(公告)号：KR1020080090116A
公开(公告)日：2008-10-08
申请号：KR1020070033221
申请日：2007-04-04
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
IPC: H04B7/26
CPC classification number: H04W36/0083 , H04W36/30
Abstract: A handoff performing method and apparatus are provided to improve the quality of transmission of multimedia data and to perform handoff in terms of signal quality. A transmission side equipment marks the importance of a currently encoded packet at a pre-set portion of the packet and transmits the same. A reception side equipment includes a packet checker(504) for checking the importance marked at the preset portion of the packet transmitted from the transmission side equipment, a handoff estimator(502) for estimating a handoff occurrence time point based on current channel information, and a handoff controller(506) for variably performing handoff such that a packet with a high importance can be received according to the check information about the importance of the packet and the estimated handoff occurrence time point information.
Abstract translation: 提供切换执行方法和装置以提高多媒体数据的传输质量并且在信号质量方面执行切换。 传输侧设备标记在分组的预设部分处的当前编码的分组的重要性并将其发送。 接收侧设备包括用于检查从发送侧设备发送的分组的预设部分标记的重要性的分组检查器（504），用于基于当前信道信息估计切换发生时间点的越区切换估计器（502），以及 用于可变地执行切换的切换控制器（506），使得可以根据关于分组的重要性和估计的切换发生时间点信息的检查信息来接收具有高重要性的分组。
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公开(公告)号：KR100827094B1
公开(公告)日：2008-05-02
申请号：KR1020060105757
申请日：2006-10-30
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
IPC: H04N19/895
CPC classification number: H04N19/895 , H04N19/13 , H04N19/176 , H04N19/51 , H04N19/625
Abstract: A video decoding EC(Error Concealment) method and a decoding device using the same are provided to perform more exact EC by using double iteration technique and perform the EC by using an output signal of a decoder without big design change in the decoder. A bit stream of an NAL(Network Abstraction Layer) is decoded(402). Each frame is decoded(404). Each slice of each frame is decoded, and a macro block of each slice is decoded(406). If a macro block(or a slice) where an error is generated is generated, the slice with the error is decoded(408,410). An EC operation of the macro block with the error is performed by performing a first iteration process of a double iteration process(412). After that, an EC operation of the macro block with the error is performed by performing a secondary iteration process(414).
Abstract translation: 提供视频解码EC（误差隐藏）方法和使用其的解码装置，以通过使用双重迭代技术来执行更精确的EC，并且在解码器中通过使用解码器的输出信号而没有大的设计改变来执行EC。 NAL（网络抽象层）的比特流被解码（402）。 每帧被解码（404）。 对每个帧的每个片段进行解码，并且对每个片段的宏块进行解码（406）。 如果生成错误的宏块（或切片）生成了错误的切片（408,410）。 通过执行双重迭代处理的第一迭代处理（412）来执行具有错误的宏块的EC操作。 之后，通过执行二次迭代处理（414）来执行具有错误的宏块的EC操作。
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公开(公告)号：KR1020080035924A
公开(公告)日：2008-04-24
申请号：KR1020060102598
申请日：2006-10-20
Applicant: 삼성전자주식회사
IPC: H04N19/42
CPC classification number: H04N19/176 , H04N19/436 , H04N19/44 , H04N19/61
Abstract: A multi-thread H.264 decoder and a compression video data decoding method thereof are provided to maximize the entire performance of the decoder by using resources efficiently even when the small number of operation units is used and disperse an operation amount required to synchronization between the operation units to all operation units. A header decoder(202) decodes the NAL(Network Adaptation Layer) header and slice header data of received video data. A memory unit(206) stores sync information about each of macro blocks included in the decoded compression video data and compression video data. A macro block allocation unit(212) allocates the number of the macro blocks to perform initial operation to plural operation units(214) according to the number of the operation units. The operation units, if a macro block to be initially operated is allocated, read macro block data to perform decoding operation respectively, performs first decoding operation for the macro block referring to the sync information, performs second decoding operation according to preset conditions, selects a macro block to perform first and second operations newly, and performs the third decoding operation of the macro blocks when the first and second decoding operations of all macro blocks are completed. A decoding video output unit outputs the operation result as decoded video data for the compression video data when the third decoding operation of the all macro blocks is completed.
Abstract translation: 提供了一种多线程H.264解码器及其压缩视频数据解码方法，即使在使用少量的操作单元时也能够有效地利用资源来最大限度地提高解码器的整体性能，并且分散其中的同步所需的操作量 操作单位到所有操作单位。 头解码器（202）对接收到的视频数据的NAL（网络适配层）头和片头数据进行解码。 存储单元（206）存储关于包含在解码压缩视频数据和压缩视频数据中的每个宏块的同步信息。 宏块分配单元（212）根据操作单元的数量将多个宏块的数量分配给多个操作单元（214）。 分配操作单元，如果分配了最初操作的宏块，则分别读取宏块数据以执行解码操作，参考同步信息对宏块执行第一解码操作，根据预设条件执行第二解码操作，选择 宏块执行新的第一和第二操作，并且当所有宏块的第一和第二解码操作完成时，执行宏块的第三解码操作。 当完成所有宏块的第三解码操作时，解码视频输出单元输出作为压缩视频数据的解码视频数据的操作结果。
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公开(公告)号：KR1020080033754A
公开(公告)日：2008-04-17
申请号：KR1020060099870
申请日：2006-10-13
Applicant: 삼성전자주식회사
IPC: H04N19/51 , H04N19/433
CPC classification number: H04N19/523 , H04N19/433 , H04N19/61
Abstract: An image coding method and apparatus are provided to implement coding effectively with low power by reducing a memory access. A memory unit(416) stores a frame with respect to image data. A motion estimating unit(418) detects a motion vector by blocks with respect to a currently inputted image frame based on the stored frame, and accesses the memory unit to interpolate subpixels with respect to a detected block. A motion compensating unit(420) performs motion compensation on a frame block to be compressed by using the detected motion vector. The motion estimating unit accesses integer-numbered pixels of the block in a standard mode and interpolates the subpixels. The motion estimating unit accesses integer-numbered pixels of the block in a zigzag mode and interpolates the subpixels.
Abstract translation: 提供一种图像编码方法和装置，通过减少存储器访问来实现低功率的有效编码。 存储单元（416）存储关于图像数据的帧。 运动估计单元（418）基于存储的帧来检测相对于当前输入的图像帧的块的运动矢量，并且访问存储器单元以相对于检测到的块插入子像素。 运动补偿单元（420）通过使用检测到的运动矢量对要压缩的帧块执行运动补偿。 运动估计单元以标准模式访问块的整数像素并内插子像素。 运动估计单元以锯齿形模式访问块的整数像素并内插子像素。
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