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公开(公告)号：KR101311402B1
公开(公告)日：2013-09-25
申请号：KR1020060061926
申请日：2006-07-03
Applicant: 삼성전자주식회사
Inventor： 송병철
IPC: H04N19/186 , H04N19/51
CPC classification number: H04N19/17 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/593 , H04N19/61
Abstract: 복수 개의 색 성분 영상들 사이의 상관 관계(correlation)를 이용하여 복원된 하나의 색 성분 영상으로부터 다른 색 성분 영상을 예측하는 영상의 부호화 방법 및 장치, 그 복호화 방법 및 장치가 개시된다. 본 발명에 따르면 하나의 영상을 구성하는 복수 개의 색 성분 영상들 중에서 선택된 제 1 색 성분 영상은 인트라 예측을 통해 부호화하고, 제 1 색 성분 영상을 제외한 나머지 색 성분 영상은 복원된 제 1 색 성분 영상을 이용하여 예측한다. 이를 통해 영상의 컬러 포맷을 변환하는 과정에서 생길 수 있는 색상 왜곡을 방지하며, 영상의 부호화 효율을 향상시킬 수 있다.
Abstract translation: 公开了一种用于使用多个颜色分量图像之间的相关性从重建的一个颜色分量图像对预测另一颜色分量图像的图像进行编码的方法和设备，解码方法和设备。 根据本发明，从多个构成视频颜色分量图像中选择的第一颜色分量图像是使用帧内预测编码时，比所述第一颜色分量图像的画面的其他颜色成分的其余部分被恢复的第一颜色分量图像 它预测使用。 因此，可以防止在转换图像的颜色格式的过程中可能发生的颜色失真并且提高图像的编码效率。
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公开(公告)号：KR1020090079406A
公开(公告)日：2009-07-22
申请号：KR1020080005335
申请日：2008-01-17
Applicant: 삼성전자주식회사
IPC: H04N21/238 , H04N7/12
CPC classification number: H04N21/2402 , H04N21/23406 , H04N21/4305 , H04N21/44004
Abstract: A transmission device and a receiving device of a video transmitting system, and a buffer control method thereof are provided to utilize resources of the video transmitting system efficiently as preventing underflow and overflow of a buffer according to change of a transfer rate of a channel. A transmission device(210) of a video transmitting system comprises an encoder(211), a buffer(212), and a buffer control unit(213). The encoder produces video data. The buffer stores the video data generated in the encoder. The buffer outputs the video data to a receiving device(220) of the video data. If a transfer rate of a channel is changed, the buffer control unit changes a usage amount of the buffer in proportion to a transfer rate of the channel. The receiving device comprises a decoder(222), a buffer(221), and an operation clock control part(223). The decoder reproduces the video data.
Abstract translation: 提供了视频发送系统的发送装置和接收装置及其缓冲器控制方法，以便有效地利用视频发送系统的资源，以防止根据信道的传送速率的变化来缓冲器的下溢和溢出。 视频发送系统的传输设备（210）包括编码器（211），缓冲器（212）和缓冲器控制单元（213）。 编码器产生视频数据。 缓冲器存储在编码器中生成的视频数据。 缓冲器将视频数据输出到视频数据的接收装置（220）。 如果频道的传送速率改变，则缓冲器控制单元与频道的传送速率成比例地改变缓冲器的使用量。 接收装置包括解码器（222），缓冲器（221）和操作时钟控制部分（223）。 解码器再现视频数据。
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公开(公告)号：KR1020090018527A
公开(公告)日：2009-02-20
申请号：KR1020070083018
申请日：2007-08-17
Applicant: 삼성전자주식회사
IPC: H04N19/136 , H04N19/176
CPC classification number: H04N19/152 , H04N19/115 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/60
Abstract: A method and an apparatus for controlling a bit rate are provided to transmits high definition or resolution moving picture in real time by controlling a bit rate and preventing the occurrence of the overflow or underflow of a bit row storage buffer based on the prediction of the image property of a current frame. The similarity between one block group among block group including plural macro block in a current frame and a block group of a previous frame corresponding to at least one block group is calculated(510). If the similarity is larger than a critical value, a target bit of the current block group to which current macro block belongs is determined(520). The target bit of the current macro block is determined based on the target bit of the current group(530). The quantization coefficient of the current macro block is calculated by considering the target bit of the determined current macro block and the bit which is generated up to the previous macro block(540).
Abstract translation: 提供了一种用于控制比特率的方法和装置，用于通过控制比特率并基于图像的预测来防止比特行存储缓冲器的上溢或下溢，实时发送高分辨率或分辨率的运动图像 当前帧的属性。 计算包括当前帧中的多个宏块的块组中的一个块组与对应于至少一个块组的先前帧的块组之间的相似度（510）。 如果相似度大于临界值，则确定当前宏块所属的当前块组的目标比特（520）。 基于当前组的目标比特确定当前宏块的目标比特（530）。 通过考虑确定的当前宏块的目标比特和直到前一个宏块产生的比特来计算当前宏块的量化系数（540）。
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公开(公告)号：KR1020080017423A
公开(公告)日：2008-02-26
申请号：KR1020080004441
申请日：2008-01-15
Applicant: 삼성전자주식회사
IPC: H04N19/146 , H04N19/70
CPC classification number: H04N19/146 , H04N19/14 , H04N19/70
Abstract: A method and an apparatus for adaptively encoding and decoding a moving picture are provided to store a moving picture in a storage medium without deterioration in image quality by calculating the temporal complexity of inputted image data at specific intervals, encoding the image data at a proper frame rate, which is lower or higher than the original frame rate, according to the calculated temporal complexity, and suitably selecting the syntax level of the encoded image data so that the encoded image data can be decoded at the original frame rate. An apparatus for adaptively encoding and decoding a moving picture comprises a temporal complexity calculation part(320), a frame rate conversion part(360), an encoding part(380), and a decoding part. The temporal complexity calculation part(320) calculates the temporal complexity of inputted image data. Based on the calculated temporal complexity, the frame rate conversion part(360) converts the original frame rate of the inputted image data into the first frame rate or the second frame rate. The encoding part(380) encodes the inputted image data at either the first frame rate or the second frame rate, and inserts information about either the first frame rate or the second frame rate in the encoded image data. The decoding part extracts either the first frame rate or the second frame rate from the encoded image data. If the first frame rate is extracted, the decoding part decodes the encoded image data at the first frame rate. In case the second frame rate is extracted, the decoding part decodes the encoded image data at the second frame rate.
Abstract translation: 提供一种用于对运动图像进行自适应编码和解码的方法和装置，以通过以特定间隔计算输入的图像数据的时间复杂度，将运动图像存储在存储介质中而不会降低图像质量，以适当的帧编码图像数据 速率，其低于或高于原始帧速率，并且适当地选择编码图像数据的语法级别，使得可以以原始帧速率对编码图像数据进行解码。 用于对运动图像进行自适应编码和解码的装置包括时间复杂度计算部分（320），帧速率转换部分（360），编码部分（380）和解码部分。 时间复杂度计算部（320）计算输入图像数据的时间复杂度。 基于所计算的时间复杂度，帧速率转换部分（360）将输入的图像数据的原始帧速率转换为第一帧速率或第二帧速率。 编码部分（380）以第一帧速率或第二帧速率对输入的图像数据进行编码，并且将关于第一帧速率或第二帧率的信息插入编码图像数据中。 解码部分从编码图像数据提取第一帧速率或第二帧速率。 如果提取第一帧速率，则解码部分以第一帧速率解码编码图像数据。 在提取第二帧速率的情况下，解码部分以第二帧速率解码编码图像数据。
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公开(公告)号：KR1020070096736A
公开(公告)日：2007-10-02
申请号：KR1020060061926
申请日：2006-07-03
Applicant: 삼성전자주식회사
Inventor： 송병철
IPC: H04N19/186 , H04N19/51
CPC classification number: H04N19/17 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/593 , H04N19/61
Abstract: A method and an apparatus for encoding/decoding an image are provided to perform prediction encoding by using the correlation between a plurality of color component images, thereby improving the encoding efficiency of an image. An intra prediction is performed with respect to a pixel block having a predetermined size in an image having the first color component among images having at least two color components(410). The pixel block having the first color component is recovered(420). A pixel block of an image having remaining color components is predicted by using the pixel block of the image having the first color component(430). The color component includes a red, a green, and a blue color component.
Abstract translation: 提供了一种用于对图像进行编码/解码的方法和装置，以通过使用多个颜色分量图像之间的相关性来执行预测编码，从而提高图像的编码效率。 在具有至少两个颜色分量的图像中，在具有第一颜色分量的图像中具有预定尺寸的像素块执行帧内预测（410）。 恢复具有第一颜色分量的像素块（420）。 通过使用具有第一颜色分量的图像的像素块来预测具有剩余颜色分量的图像的像素块（430）。 颜色分量包括红色，绿色和蓝色分量。
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Patent Agency Ranking
公开(公告)号：KR100754167B1
公开(公告)日：2007-09-03
申请号：KR1020040079488
申请日：2004-10-06
Applicant: 삼성전자주식회사
Inventor： 송병철
IPC: H04N19/119
CPC classification number: H04N19/61 , G06F17/147
Abstract: 본 발명은 동영상 코덱(codec)에서 사용되는 변환/역변환 방법 및 장치에 관한 것이다. 본 발명에 따른 동영상 코덱의 변환/역변환 방법은, 입력되는 데이터의 포맷 또는 크기에 따라 별도로 구비된 복수의 롬 테이블들 중 입력되는 데이터의 포맷 또는 크기에 따라 소정의 롬 테이블을 선택하는 단계; 및 선택된 롬 테이블을 참조하여 입력되는 데이터에 대하여 변환/역변환을 수행하는 단계를 포함하며, 변환/역변환을 수행하는 단계는, 입력되는 데이터의 포맷 또는 크기에 관계없이 8개의 데이터를 동시에 병렬적으로 처리하는 것을 특징으로 한다. 이에 따라, 입력되는 데이터의 크기나 종류에 제한을 받지 않고 효율적으로 역변환하는 방법 및 그 장치가 제공된다.
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公开(公告)号：KR100728032B1
公开(公告)日：2007-06-14
申请号：KR1020060008983
申请日：2006-01-27
Applicant: 삼성전자주식회사
Inventor： 송병철
IPC: H04N19/51 , H04N19/176 , H04N19/11
Abstract: An intra-prediction method based on warping is provided to improve accuracy of intra-prediction of a region having a specific pattern and encoding efficiency by using an intra-prediction method employing a warping technique for intra-prediction for encoding and decoding images. A first intra-prediction is performed for blocks each having a predetermined size. A block group composed of a plurality of blocks each having a predetermined size is formed(920). A second intra-prediction is carried out for the block group(940). Bit rates according to the first intra-prediction and the second intra-prediction are calculated. One of the first intra-prediction and the second intra-prediction is selected on the basis of the bit rates.
Abstract translation: 提供基于翘曲的帧内预测方法，以通过使用采用用于帧内预测的翘曲技术的帧内预测方法来对图像进行编码和解码来提高具有特定图案和编码效率的区域的帧内预测的准确性。 对具有预定大小的块执行第一帧内预测。 形成由多个具有预定尺寸的块组成的块组（920）。 对块组执行第二帧内预测（940）。 计算根据第一帧内预测和第二帧内预测的比特率。 根据比特率选择第一帧内预测和第二帧内预测中的一个。
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公开(公告)号：KR100677128B1
公开(公告)日：2007-02-02
申请号：KR1020040068461
申请日：2004-08-30
Applicant: 삼성전자주식회사
IPC: H04N19/152
Abstract: 매크로블록 파이프라인 구조를 갖는 비디오 부호화기에서의 비트율 제어장치 및 방법이 개시된다. 본 발명에 따라, 비트율 제어장치는 픽처의 부호화시에 발생하는 비트의 총 수를 나타내는 타겟 비트를 결정하는 목표비트 결정부; 버퍼의 초기 충만도와 현재까지의 모든 매크로 블록을 부호화했을 때 발생한 비트수를 이용하여 현재 픽처의 매크로 블록에 대한 버퍼의 충만도를 계산하는 버퍼 충만도 계산부; 및 상기 버퍼 충만도에 따라 양자화 파라미터를 계산하는 양자화 파라미터 계산부를 포함하는 것을 특징으로 한다. 이에 의해, 하드웨어 구현시 하드웨어 복잡도를 줄이고 프로세싱 시간을 줄일 수 있다.
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公开(公告)号：KR1020070008476A
公开(公告)日：2007-01-17
申请号：KR1020060118551
申请日：2006-11-28
Applicant: 삼성전자주식회사
IPC: H04N19/136 , H04N19/176 , H04N19/124
CPC classification number: H04N19/124 , H04N19/136 , H04N19/176
Abstract: A method for coding a moving picture and an apparatus thereof are provided to adaptively apply a quantization matrix in a macro block unit based on characteristics of an inputted image, thereby improving coding efficiency and performance. In a method for performing moving picture coding by adaptively using a plurality of quantization weight matrices, the method for coding a moving picture comprises the following steps of: converting an inputted image into at least one macro block; selecting a quantization weight matrix corresponding to each macro block among the plurality of quantization weight matrices; quantizing each macro block by using the selected quantization weight matrix; and performing a variable length coding process by including the quantized macro block, index information about the selected quantization weight matrix, and the plurality of quantization weight matrices.
Abstract translation: 提供一种用于编码运动图像的方法及其装置，以基于输入图像的特性自适应地应用宏块单位中的量化矩阵，从而提高编码效率和性能。 在通过自适应地使用多个量化权重矩阵来执行运动图像编码的方法中，用于编码运动图像的方法包括以下步骤：将输入的图像转换成至少一个宏块; 选择与所述多个量化权重矩阵中的每个宏块相对应的量化权重矩阵; 通过使用所选择的量化权重矩阵量化每个宏块; 以及通过包括量化宏块，关于所选择的量化权重矩阵的索引信息和多个量化权重矩阵来执行可变长度编码处理。
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公开(公告)号：KR100667809B1
公开(公告)日：2007-01-11
申请号：KR1020050079990
申请日：2005-08-30
Applicant: 삼성전자주식회사
IPC: H04N7/24
CPC classification number: H04N19/159 , H04N19/122 , H04N19/126 , H04N19/176 , H04N19/70
Abstract: An image decoding method and a recording medium are provided to reduce the quantity of calculations of a decoding operation even when CBP(Coded Block Pattern) of a decoding block is not zero to improve a decoding speed. An image decoding method includes a step of determining an effective process region of a decoding block on the basis of a result obtained by comparing the position of the final non-zero coefficient of the decoding block with a predetermined threshold value when CBP of the decoding block is not zero(201), a step of decoding the effective process region(202), and a step of performing one of an operation of skipping decoding of the region other than the effective process region and an operation of filling the region other than the effective process region with zero and carrying out inverse transform. The predetermined threshold value is determined according to a scan order.
Abstract translation: 提供图像解码方法和记录介质，以便即使解码块的CBP（编码块模式）不为零也可以减少解码操作的计算量，以提高解码速度。 图像解码方法包括以下步骤：基于通过将解码块的最终非零系数的位置与预定阈值进行比较而获得的结果来确定解码块的有效处理区域，当解码块的CBP 不是零（201），对有效处理区域（202）进行解码的步骤，以及执行跳过有效处理区域以外的区域的解码的操作中的一个的操作的步骤和填充除有效处理区域之外的区域的操作 有效过程区域为零，并进行逆变换。 根据扫描顺序确定预定阈值。
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