公开(公告)号：US20080129559A1

公开(公告)日：2008-06-05

申请号：US11904700

申请日：2007-09-28

申请人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： H03M7/40

CPC分类号： H04N19/176 ,  H04N19/436 ,  H04N19/44 ,  H04N19/61

摘要： Disclosed is an H.264 decoder equipped with multiple operation units, and a method for decoding compressed image data using same. The decoder comprises a plurality of operation units that successively perform a Variable Length Decoding (VLD) operation, an Inverse Transform & DeQuantization (ITDQ) operation, and an intra PREDiction & inter PREDiction (PRED) operation with respect to a macroblock for which each operation unit is to perform a decoding operation, on receiving information on a macroblock, for which each operation unit is to carry out the decoding operation, with reference to a synchronization information storage unit. When the VLD, ITDQ, and PRED operations have been completed with respect to all macroblocks, the synchronization information storage unit is initialized, and the multiple operation units perform Deblocking Filter (DF) operations with respect to macroblocks for which the operation units are to carry out the DF operations respectively, and then, complete decoding of compressed image data currently received.

摘要翻译： 公开了配备有多个操作单元的H.264解码器，以及使用其解码压缩图像数据的方法。 解码器包括多个操作单元，它们相对于每个操作的宏块依次执行可变长度解码（VLD）操作，逆变换和去量化（ITDQ）操作以及内部PREDATION＆PREDEDATION（PRED）操作 单元是参照同步信息存储单元接收关于每个操作单元将执行解码操作的宏块上的信息的解码操作。 当相对于所有宏块完成​​VLD，ITDQ和PRED操作时，同步信息存储单元被初始化，并且多个操作单元针对操作单元将携带的宏块执行解块滤波（DF）操作 分别进行DF操作，然后对当前接收的压缩图像数据进行完整解码。

公开(公告)号：US20080095471A1

公开(公告)日：2008-04-24

申请号：US11904058

申请日：2007-09-26

申请人： Yong-Deok Kim ,  Chan-Yul Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

发明人： Yong-Deok Kim ,  Chan-Yul Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

IPC分类号： G06K9/32

CPC分类号： G06F17/17 ,  H04N7/0135 ,  H04N19/186 ,  H04N19/43 ,  H04N19/523 ,  H04N19/577 ,  H04N19/61

摘要： Disclosed is a method for interpolating chroma signals while minimizing the calculation overhead. To this end, multiplication requiring a large operation is removed when obtaining a fractional-pel value through chroma interpolation, and a simple linear interpolation method is used in order to reduce the number of operations including addition, subtraction, etc. In this way, it is possible to considerably reduce the operation amount for an ME and an MC which normally consume more than about 30% of H.264 system processing power.

摘要翻译： 公开了一种在最小化计算开销的同时内插色度信号的方法。 为此，当通过色度插值获得小数像素值时，需要大量操作的乘法被去除，并且使用简单的线性插值方法来减少包括加法和减法等的操作次数。以这种方式 可以显着地减少通常消耗大约30％的H.264系统处理能力的ME和MC的操作量。

公开(公告)号：US08411959B2

公开(公告)日：2013-04-02

申请号：US12528367

申请日：2008-02-22

申请人： Kyung-Ho Chae ,  Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Ick Kim ,  Won-Jun Kim

发明人： Kyung-Ho Chae ,  Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Ick Kim ,  Won-Jun Kim

IPC分类号： G06K9/48

CPC分类号： G06T7/12 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/20132 ,  G06T2207/30221

摘要： Disclosed is a method for extracting a region-of-interest of a user in a multimedia mobile terminal. The method includes: setting a search region in an input picture input to the multimedia mobile terminal on a screen picture-to-screen picture basis, and extracting a group of boundary of a region-of-interest based on a brightness difference between the set search region and an environment around the set search region; determining boundary coordinates of the region-of-interest through learning during a predetermined frame among the extracted group of boundary coordinate candidates; and enlarging the region-of-interest having the determined boundary coordinates, and displaying the enlarged region-of-interest. As a result, a region the user is most interested in or pays more attention to than other regions on a screen is automatically extracted. Accordingly, it is possible for users to view pictures in such an efficient manner as to provide the users with an even better experience and understanding during viewing.

摘要翻译： 公开了一种用于提取多媒体移动终端中的用户的感兴趣区域的方法。 该方法包括：在屏幕画面到画面的基础上，在输入到多媒体移动终端的输入图像中设置搜索区域，并且基于该组合之间的亮度差提取兴趣区域的边界组 搜索区域和设置搜索区域周围的环境; 通过在提取的边界坐标候选组中的预定帧期间的学习来确定兴趣区域的边界坐标; 并且扩大具有确定的边界坐标的兴趣区域，并且显示放大的感兴趣区域。 因此，自动提取用户对屏幕上其他区域最感兴趣或更加重视的区域。 因此，用户可以以如此有效的方式查看图片，以便在观看期间为用户提供更好的体验和理解。

公开(公告)号：US08331704B2

公开(公告)日：2012-12-11

申请号：US12508772

申请日：2009-07-24

申请人： Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Kyung-Ho Chae ,  Denis Gorodetskii

发明人： Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Kyung-Ho Chae ,  Denis Gorodetskii

IPC分类号： G06K9/36

CPC分类号： H04N19/184 ,  H04N19/52

摘要： Provided are methods and apparatuses for coding a motion vector by a multimedia image codec. The method including: calculating and storing difference vectors which represent differences between adjacent motion vectors of image data; selecting a central axis of the stored difference vectors based on trend information of the difference vectors; transforming the difference vectors based on the central axis of the difference vectors; and performing bit coding using the axis-transformed difference vectors.

摘要翻译： 提供了通过多媒体图像编解码器对运动矢量进行编码的方法和装置。 该方法包括：计算和存储表示图像数据的相邻运动矢量之间差异的差分矢量; 基于差矢量的趋势信息选择所存储的差分矢量的中心轴; 基于差分矢量的中心轴变换差分矢量; 以及使用轴变换差分矢量执行比特编码。

公开(公告)号：US08036269B2

公开(公告)日：2011-10-11

申请号：US11975818

申请日：2007-10-22

申请人： Chan-Yul Kim ,  Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh

发明人： Chan-Yul Kim ,  Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh

IPC分类号： H04N7/12

CPC分类号： H04N19/59 ,  H04N19/423 ,  H04N19/433 ,  H04N19/51 ,  H04N19/61

摘要： A method and apparatus for accessing a memory for processing moving pictures, which loads data from a frame buffer of an external memory, and uses a motion prediction technique. The method includes the steps of: loading, from the frame buffer, pixels of a relevant block of 8×8 size and extra pixel data necessary for an inter prediction while performing the inter prediction of a block of an 8×8 size following division of a macroblock, storing the pixels of the relevant block size of 8×8 and the extra pixel data in an internal cache memory. The stored pixels of the relevant block size of 8×8 and the stored extra pixel data are used; and then the stored pixels of the relevant block size of 8×8 and the stored extra pixel data stored in the cache memory are re-used during an inter prediction of the relevant block size of 8×8 and sub-blocks.

摘要翻译： 一种用于访问用于处理运动图像的存储器的方法和装置，其从外部存储器的帧缓冲器加载数据，并使用运动预测技术。 该方法包括以下步骤：从帧缓冲器中加载8×8大小的相关块的像素和进行帧间预测所需的额外像素数据，同时执行8×8大小的块的帧间预测， 宏块，将相关块大小为8×8的像素和额外像素数据存储在内部高速缓冲存储器中。 使用8×8相关块大小的存储像素和存储的额外像素数据; 然后在8×8和子块的相关块大小的帧间预测期间重新使用相关块大小为8×8的存储像素和存储在高速缓冲存储器中的存储的额外像素数据。

公开(公告)号：US20090141166A1

公开(公告)日：2009-06-04

申请号：US12313559

申请日：2008-11-21

申请人： Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

发明人： Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

IPC分类号： H04N7/12

CPC分类号： H04N19/132 ,  H04N19/166 ,  H04N19/172 ,  H04N19/587 ,  H04N19/61 ,  H04N19/895

摘要： Disclosed is a selective frame error concealment method for a moving picture frame, the method including the steps of determining if an erroneous frame corresponds to one among a predetermined number of frames received after an I frame when the erroneous frame is received during reception of moving picture frames, determining if the number of consecutive erroneous frames is greater than a threshold value when the erroneous frame does not correspond to one among the predetermined number of frames received after the I frame, using an error concealment technique when the number of consecutive erroneous frames is equal to or less than the threshold value; and displaying a frame, which has been received without error before the erroneous frame, until receiving a new I frame, either when the erroneous frame corresponds to one among the predetermined number of frames received after the I frame, or when the number of consecutive erroneous frames is greater than the threshold value.

摘要翻译： 公开了一种用于运动图像帧的选择性帧错误隐藏方法，该方法包括以下步骤：在接收到运动图像期间接收到错误帧时，确定在I帧之后接收的预定数目的帧中是否存在错误帧 帧，当错误帧不对应于在I帧之后接收到的预定帧数之中时，连续错误帧的数量是否大于阈值，当连续错误帧的数量为 等于或小于阈值; 并且当错误帧对应于在I帧之后接收到的预定数量的帧中的一个时，或者当连续的错误帧的数目相对应时，显示在错误帧之前没有错误地接收到的帧直到接收到新的I帧 帧大于阈值。

公开(公告)号：US20080133634A1

公开(公告)日：2008-06-05

申请号：US11946919

申请日：2007-11-29

申请人： Suneetha Kalahasthi ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Han-Sang Kim

发明人： Suneetha Kalahasthi ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Han-Sang Kim

IPC分类号： G06F7/552

CPC分类号： G06F7/552

摘要： A 0.75-power computation apparatus and method are provided in which the range of an input value X is divided into a predetermined number areas, a 0.75 power of the input value X is represented as a predetermined approximation polynomial, coefficients for the approximation polynomial representing the input value X are preset for each of the areas, predetermined coefficients of the approximation polynomial are checked according to an actual input value X, and a 0.75-power of the actual input value X is computed using the approximation polynomial.

摘要翻译： 提供一种0.75功率计算装置和方法，其中输入值X的范围被划分成预定数量的区域，输入值X的0.75功率被表示为预定的近似多项式，表示代表多项式的近似多项式的系数 对于每个区域预先设定输入值X，根据实际输入值X检查近似多项式的预定系数，使用近似多项式计算实际输入值X的0.75倍。

公开(公告)号：US08184713B2

公开(公告)日：2012-05-22

申请号：US11974964

申请日：2007-10-17

申请人： Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

发明人： Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

IPC分类号： H04N7/12

CPC分类号： H04N19/527

摘要： A deblocking filtering method for image data and a deblocking filter. According to the deblocking filtering method for image data and the deblocking filter, when computation of Boundary Strength (BS) values for each boundary based on one of horizontal and vertical directions from input image data is completed, it is possible to estimate BS values for each boundary based on a direction different from the currently selected direction by using the computed BS values. Further, deblocking filtering is performed based on corresponding directions according to the estimated values, so that the deblocking filtering can be completely performed with only a BS value of boundaries based on a selected one direction. Consequently, a BS value computation process necessarily required in a deblocking filtering process can be considerably reduced, and thus time required in the operation process of a deblocking filter can also be considerably reduced.

摘要翻译： 一种用于图像数据和去块滤波器的去块滤波方法。 根据图像数据的去块滤波方法和解块滤波器，当完成了基于输入图像数据的水平和垂直方向之一的每个边界的边界强度（BS）值的计算时，可以估计每个边界的BS值 通过使用所计算的BS值，基于与当前选择的方向不同的方向的边界。 此外，根据估计值，根据相应的方向进行解块滤波，从而可以仅基于选定的一个方向的边界的BS值来完全去除滤波。 因此，可以显着地减少去块滤波处理中必需的BS值计算处理，并且因此也可以显着地减少去块滤波器的操作处理所需的时间。

公开(公告)号：US20100150451A1

公开(公告)日：2010-06-17

申请号：US12528367

申请日：2008-02-22

申请人： Kyung-Ho Chae ,  Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Ick Kim ,  Won-Jun Kim

发明人： Kyung-Ho Chae ,  Yong-Deok Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Ick Kim ,  Won-Jun Kim

IPC分类号： G06K9/48

CPC分类号： G06T7/12 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/20132 ,  G06T2207/30221

摘要： Disclosed is a method for extracting a region-of-interest of a user in a multimedia mobile terminal. The method includes: setting a search region in an input picture input to the multimedia mobile terminal on a screen picture-to-screen picture basis, and extracting a group of boundary of a region-of-interest based on a brightness difference between the set search region and an environment around the set search region; determining boundary coordinates of the region-of-interest through learning during a predetermined frame among the extracted group of boundary coordinate candidates; and enlarging the region-of-interest having the determined boundary coordinates, and displaying the enlarged region-of-interest. As a result, a region the user is most interested in or pays more attention to than other regions on a screen is automatically extracted. Accordingly, it is possible for users to view pictures in such an efficient manner as to provide the users with an even better experience and understanding during viewing.

摘要翻译： 公开了一种用于提取多媒体移动终端中的用户的感兴趣区域的方法。 该方法包括：在屏幕画面到画面的基础上，在输入到多媒体移动终端的输入图像中设置搜索区域，并且基于该组合之间的亮度差提取兴趣区域的边界组 搜索区域和设置搜索区域周围的环境; 通过在提取的边界坐标候选组中的预定帧期间的学习来确定兴趣区域的边界坐标; 并且扩大具有确定的边界坐标的兴趣区域，并且显示放大的感兴趣区域。 因此，自动提取用户对屏幕上其他区域最感兴趣或更加重视的区域。 因此，用户可以以如此有效的方式查看图片，以便在观看期间为用户提供更好的体验和理解。

公开(公告)号：US20090207914A1

公开(公告)日：2009-08-20

申请号：US12389893

申请日：2009-02-20

申请人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo ,  Byeung-Woo Jeon ,  Bong-Soo Jung ,  Kwang-Hyun Won

发明人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo ,  Byeung-Woo Jeon ,  Bong-Soo Jung ,  Kwang-Hyun Won

IPC分类号： H04N7/26

CPC分类号： H04N7/26861 ,  H04N19/103 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61

摘要： Disclosed is a method of encoding a direct mode when coding moving images, the method includes finding a prediction and a cost for each of a plurality of direct modes including a backward-based temporal direct mode and a forward-based temporal direct mode with respect to a current block to be encoded and determining one mode having the lowest cost as a result of comparing the costs as an optimal encoding mode, thereby performing encoding the direct mode.

摘要翻译： 公开了一种在编码运动图像时对直接模式进行编码的方法，该方法包括针对包括基于后向时间直接模式和基于前向的时间直接模式的多个直接模式中的每一个寻找预测和成本 作为要编码的当前块，并且通过将成本作为最佳编码模式进行比较，确定具有最低成本的一种模式，由此执行直接模式的编码。