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：US20080095243A1

公开(公告)日：2008-04-24

申请号：US11906355

申请日：2007-10-02

申请人： Young-O Park ,  Young-Hun Joo ,  Kwang-Pyo Choi

发明人： Young-O Park ,  Young-Hun Joo ,  Kwang-Pyo Choi

IPC分类号： H04N7/12

CPC分类号： H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89

摘要： Provided is an H.264 decoding method and device for detection of Network Abstract Layer (NAL) unit error. The method includes calculating a total macroblock count for one picture, calculating a difference between a previous frame count and a current frame count, whenever a NAL unit is received, counting a macroblock count whenever decoding the macroblock, until the one picture is made complete, setting information indicating that one erroneous picture is made complete when the counted macroblock count is less than the total macroblock count and reporting that the one erroneous picture is made complete when the difference is greater than “0”.

摘要翻译： 提供了一种用于检测网络抽象层（NAL）单元误差的H.264解码方法和装置。 该方法包括：计算一个图像的总宏块计数，计算接收到NAL单元时的前一帧计数与当前帧计数之间的差值，每当对该宏块进行解码时对宏块计数进行计数，直到完成一幅图像为止， 当计数的宏块数量小于总宏块计数并报告当该差值大于“0”时报告一个错误图像完成时，指示一个错误图像完成的设置信息。

公开(公告)号：US20080095242A1

公开(公告)日：2008-04-24

申请号：US11904701

申请日：2007-09-28

申请人： Yong-Hyun Lim ,  Young-O Park ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Yong-Hyun Lim ,  Young-O Park ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： H04N7/26

CPC分类号： H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/51

摘要： An apparatus for determining an encoding mode in an H.264 encoder is provided with a 16×16 macroblock number calculating unit and a threshold updating unit. The 16×16 macroblock number calculating unit calculates means of the number of 16×16 macroblocks. The threshold updating unit compares the number of 16×16 macroblocks of a frame, which is chosen to be currently encoded, with the mean of the number of 16×16 macroblocks among or within the frames, and updates a currently set threshold according to a result of comparing. Then, calculating unit checks the number of times by which the encoding mode is determined by the 16×16 macroblock in a frame whose encoding is currently completed, and the threshold updating unit compares the number of times with the currently set threshold to increase or decrease the threshold according to a result of the comparison.

摘要翻译： 用于确定H.264编码器中的编码模式的装置具有16×16宏块数计算单元和阈值更新单元。 16×16宏块数计算单元计算16×16宏块的数量的装置。 阈值更新单元将选择当前被编码的帧的16×16个宏块的数目与帧内或帧内的16×16个宏块的数目的平均值进行比较，并且根据比较结果来更新当前设置的阈值。 然后，计算单元检查在编码当前完成的帧中由16×16宏块确定编码模式的次数，并且阈值更新单元将该次数与当前设置的阈值进行比较以增加或减少阈值 根据比较的结果。

公开(公告)号：US20080025401A1

公开(公告)日：2008-01-31

申请号：US11880203

申请日：2007-07-20

申请人： Chang-Hyun Lee ,  Jae-Seok Kim ,  Seong-Joo Lee ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Chang-Hyun Lee ,  Jae-Seok Kim ,  Seong-Joo Lee ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： H04N7/12

CPC分类号： H04N19/152 ,  H04N19/115 ,  H04N19/124 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61

摘要： A method for measuring an real-time image complexity of an image processed for each macroblock based on a frame includes: identifying a state of a preset value among header bits of information processed for each macroblock in a preceding frame; identifying a state of the preset value among header bits of information processed for each macroblock up to a preceding frame; and detecting image complexity of a current frame through comparison of the identified states.

摘要翻译： 一种用于测量基于帧的每个宏块处理的图像的实时图像复杂度的方法包括：识别针对前一帧中的每个宏块处理的信息的标题位之间的预设值的状态; 识别针对每个宏块处理的信息的标题位之前的预设值的状态，直到前一帧; 并且通过比较所识别的状态来检测当前帧的图像复杂度。

公开(公告)号：US20070189384A1

公开(公告)日：2007-08-16

申请号：US11652989

申请日：2007-01-12

申请人： Young-O Park ,  Kwang-Pyo Choi ,  Young-Hun Joo

发明人： Young-O Park ,  Kwang-Pyo Choi ,  Young-Hun Joo

IPC分类号： H04N7/12

CPC分类号： H04N21/23406 ,  H04N21/4307 ,  H04N21/44004

摘要： An apparatus for reproduction of an image frame in an image receiving system is disclosed. The apparatus includes a demultiplexer for restoring a received signal to a decodable bitstream and generating start information of each image frame of the bitstream, and an image decoder for decoding the bitstream restored by the demultiplexer, thereby generating a reproducible I frame or P frame, which is an image frame; an image reproduction time uniformity processing module for buffering each image frame output from the image decoder, and then outputting the buffered I frame or P frame while delaying the I frame or P frame based on the start information of each image frame provided by the demultiplexer according to a preset delay time. The present delay time has been preset to be greater than a processing time period required for decoding of an I frame and to be less than a time interval between image frames in the image bitstream. The apparatus may also includes an image output unit for providing an output of the image reproduction time uniformity processing module to an external output unit to display said output.

摘要翻译： 公开了一种在图像接收系统中再现图像帧的装置。 该装置包括用于将接收到的信号恢复到可解码比特流并产生比特流的每个图像帧的开始信息的解复用器，以及用于解码由解复用器恢复的比特流的图像解码器，从而生成可再现I帧或P帧， 是一个图像帧; 图像再现时间均匀性处理模块，用于缓冲从图像解码器输出的每个图像帧，然后基于多路分解器提供的每个图像帧的开始信息延迟I帧或P帧，输出缓冲的I帧或P帧， 到预设的延迟时间。 现在的延迟时间已被预设为大于对I帧进行解码所需的处理时间段，并且小于图像比特流中的图像帧之间的时间间隔。 该装置还可以包括用于将图像再现时间均匀性处理模块的输出提供给外部输出单元以显示所述输出的图像输出单元。

公开(公告)号：US20070183454A1

公开(公告)日：2007-08-09

申请号：US11636932

申请日：2006-12-11

申请人： Han-Sang Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yong-Deok Kim ,  Yun-Je Oh

发明人： Han-Sang Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yong-Deok Kim ,  Yun-Je Oh

IPC分类号： H04H1/04

CPC分类号： H04H60/23 ,  H04N7/52 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/43853 ,  H04N21/835

摘要： Disclosed are a system and method for providing digital multimedia broadcasting confinement service. The system includes: a relay center side system, which is adopted to the relay center, according to the relay center side packet identification description (PID) key, for modifying the PID of transport stream and generating the distorted program specific information (PSI); and a terminal side system, which is adopted to the DMB terminal, according to the terminal side PID key, for recovering the distorted PSI of the transport stream received from the relay center and decoding it. The method includes the steps of: identifying whether the actual PID of the TS is consistent when the TS is demultiplexed by audio/video PID acquired through the program map table (PMT) analysis of the TS; generating a preset alarm signal; modifying the PID of the audio/video data in the PMT according to the terminal side PID; and demultiplexing the TS according to the modified PID value.

摘要翻译： 公开了一种用于提供数字多媒体广播限制服务的系统和方法。 该系统包括：根据中继侧分组识别描述（PID）密钥对继电器中心采用的中继侧系统，用于修改传输流的PID并产生失真的程序特定信息（PSI）; 以及根据终端侧PID密钥被用于DMB终端的终端侧系统，用于恢复从中继中心接收的传输流的失真PSI并对其进行解码。 该方法包括以下步骤：当通过TS的节目映射表（PMT）分析获得的音频/视频PID解复用TS时，识别TS的实际PID是否一致; 产生预设的报警信号; 根据终端侧PID修改PMT中的音频/视频数据的PID; 并根据修改的PID值解复用TS。

公开(公告)号：US20070130612A1

公开(公告)日：2007-06-07

申请号：US11505082

申请日：2006-08-16

申请人： Han-Sang Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yong-Deok Kim ,  Kyung-Ho Chae

发明人： Han-Sang Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yong-Deok Kim ,  Kyung-Ho Chae

IPC分类号： H04N7/16

CPC分类号： H04H20/28 ,  H04H60/07 ,  H04N21/2362 ,  H04N21/4345

摘要： Disclosed is a digital broadcasting transmission apparatus for rapid channel change to an A/V stream of a predetermined channel, the apparatus including a program specific information (PSI) generation unit for generating PSI of the A/V stream, a PSI length detection unit for detecting a length of the PSI generated by the PSI generation unit; a channel information (CI) generation unit for generating CI which includes PSI of all digital broadcasting channels input to the digital broadcasting transmission apparatus, a CI insertion unit for dividing and inserting the CI generated by the CI generation unit into a PSI transmission area generated by the PSI generation unit, according to the length information detected by the PSI length detection unit, and a transport stream (TS) multiplexing unit for multiplexing and outputting the A/V stream and an output of the CI insertion unit.

摘要翻译： 公开了一种数字广播传输装置，用于将信道快速切换到预定信道的A / V流，该装置包括用于产生A / V流的PSI的节目专用信息（PSI）生成单元，PSI长度检测单元，用于 检测由PSI生成单元生成的PSI的长度; 用于产生CI的信道信息（CI）生成单元，其包括输入到数字广播发送装置的所有数字广播信道的PSI; CI插入单元，用于将由CI生成单元生成的CI分割和插入到由 PSI生成单元，根据由PSI长度检测单元检测出的长度信息，以及用于复用和输出A / V流的传输流（TS）复用单元和CI插入单元的输出。

公开(公告)号：US20060045081A1

公开(公告)日：2006-03-02

申请号：US11147703

申请日：2005-06-08

申请人： Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

IPC分类号： H04L12/28

CPC分类号： H03K19/1776 ,  H03K19/17744

摘要： A field programmable gate array (FPGA) for multiplexing data and enable signals input from a plurality of input ports and outputting the multiplexed signal to one output port is disclosed. The FPGA includes a plurality of memories, which are connected to the input ports, for storing the input data and enable signals, respectively, and outputting one-shot signals at trailing edges of the enable signals; and a finite state machine (FSM) for sequentially reading the data signals stored in the memories in an order of the one-shot signals input from the memories.

公开(公告)号：US08199817B2

公开(公告)日：2012-06-12

申请号：US11901589

申请日：2007-09-18

申请人： Yong-Deok Kim ,  Young-O Park ,  Kwang-Pyo Choi ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Kwan-Woong Song ,  Chang-Su Kim

发明人： Yong-Deok Kim ,  Young-O Park ,  Kwang-Pyo Choi ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Kwan-Woong Song ,  Chang-Su Kim

IPC分类号： H04N11/02 ,  H04N7/12

CPC分类号： H04N19/61 ,  H04N19/895

摘要： A method and apparatus for error concealment in decoding of a moving picture. The method includes the steps of determining an erroneous macro block in a present frame when the moving picture is decoded, finding a first macro block having a highest similarity to the erroneous macro block and a second macro block having a next highest similarity to the erroneous block in a previous frame by comparing adjacent pixels of respective blocks in the previous frame with adjacent pixels of the erroneous block in the present frame; and replacing the erroneous block by using an average between the found macro blocks having the highest similarity and the second highest similarity to thereby conceal the erroneous macro block. The apparatus includes a parser, an entropy decoder, an inverse quantizer, an inverse converter, and a concealment unit that uses motion compensation from a previous frame to correct a macro block in a current frame.

摘要翻译： 一种用于运动图像解码中的错误隐藏的方法和装置。 该方法包括以下步骤：当解码运动图像时，确定当前帧中的错误宏块，找到与错误宏块具有最高相似度的第一宏块和与错误块具有次高相似性的第二宏块 在前一帧中通过将前一帧中的各个块的相邻像素与当前帧中的错误块的相邻像素进行比较; 并且通过使用具有最高相似度的所找到的宏块与第二高相似度之间的平均值来替换错误块，从而隐藏错误的宏块。 该装置包括解析器，熵解码器，逆量化器，逆变换器和隐藏单元，其使用来自前一帧的运动补偿来校正当前帧中的宏块。