公开(公告)号：US07894486B2

公开(公告)日：2011-02-22

申请号：US11642270

申请日：2006-12-20

申请人： Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

发明人： Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

IPC分类号： H04J3/07 ,  H04J3/06

CPC分类号： H04L29/06027 ,  H04L65/604 ,  H04L65/608

摘要： Disclosed is a method for depacketization of multimedia packet data, the method comprising: a context-aware step of parsing and recording a start code, which can identify each frame, in a first portion of a payload of a real-time transport protocol (RTP) packet; and a step of performing depacketization according to each packet by using the start code.

摘要翻译： 公开了一种用于多媒体分组数据的分组化的方法，所述方法包括：在实时传输协议（RTP）的有效载荷的第一部分中解析和记录可识别每个帧的起始码的上下文感知步骤 ）包; 以及通过使用起始码根据每个分组执行解包的步骤。

公开(公告)号：US20070189286A1

公开(公告)日：2007-08-16

申请号：US11642270

申请日：2006-12-20

申请人： Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

发明人： Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

IPC分类号： H04J3/16 ,  H04L12/56

CPC分类号： H04L29/06027 ,  H04L65/604 ,  H04L65/608

摘要： Disclosed is a method for depacketization of multimedia packet data, the method comprising: a context-aware step of parsing and recording a start code, which can identify each frame, in a first portion of a payload of a real-time transport protocol (RTP) packet; and a step of performing depacketization according to each packet by using the start code.

摘要翻译： 公开了一种用于多媒体分组数据的分组化的方法，所述方法包括：在实时传输协议（RTP）的有效载荷的第一部分中解析和记录可识别每个帧的起始码的上下文感知步骤 ）包; 以及通过使用起始码根据每个分组执行解包的步骤。

公开(公告)号：US20080273597A1

公开(公告)日：2008-11-06

申请号：US12075975

申请日：2008-03-14

申请人： Petr Kovalenko ,  Kwang-Pyo Choi ,  Han-Sang Kim ,  Bong-Gon Kim ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Petr Kovalenko ,  Kwang-Pyo Choi ,  Han-Sang Kim ,  Bong-Gon Kim ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： H04N11/02

CPC分类号： H04N19/533 ,  H04N19/56

摘要： Disclosed is video encoding technology, and more particularly a method for searching for a motion vector in a procedure of estimating a motion in video frames. The motion vector search method includes the steps of: individually calculating error energies of a center point and vertices of a search pattern in a search window used in a previous frame with respect to a center of the search window established in the current frame, thereby designating a motion vector candidate point; either determining the motion vector candidate point as a moving point of a motion vector, or calculating error energies of a pair of neighboring points and re-establishing a motion vector candidate point; and either determining the re-established motion vector candidate point as a moving point of a motion vector, or re-establishing a search pattern, re-checking the error energies of the center point, the vertices and the neighboring points, and determining a moving point of a motion vector.

摘要翻译： 公开了视频编码技术，更具体地，涉及在估计视频帧中的运动的过程中搜索运动矢量的方法。 运动矢量搜索方法包括以下步骤：相对于在当前帧中建立的搜索窗口的中心，分别计算在先前帧中使用的搜索窗口中的中心点和搜索模式的顶点的误差能量，从而指定 运动矢量候选点; 将运动矢量候选点确定为运动矢量的移动点，或者计算一对相邻点的误差能量并重新建立运动矢量候选点; 并且确定重新建立的运动矢量候选点作为运动矢量的移动点，或者重新建立搜索模式，重新检查中心点，顶点和相邻点的误差能量，以及确定移动 运动矢量点。

公开(公告)号：US20100158125A1

公开(公告)日：2010-06-24

申请号：US12643164

申请日：2009-12-21

申请人： Young-O PARK ,  Kwang-Pyo Choi ,  Yong-Serk Kim ,  Young-Hun Joo

发明人： Young-O PARK ,  Kwang-Pyo Choi ,  Yong-Serk Kim ,  Young-Hun Joo

IPC分类号： H04N7/26

CPC分类号： H04N19/436 ,  H04N19/61

摘要： A method is provided for constructing a video frame in a video signal processing apparatus using multi-core processing, in which multiple macro blocks are generated from a video signal on a predetermined unit basis, and a video frame is constructed by combining the generated multiple macro blocks with header information. The video frame includes one correlation information field for recording information about correlations between the multiple macro blocks, and the one correlation information field is located in front of the multiple macro blocks constituting the video frame.

摘要翻译： 提供了一种用于在使用多核处理的视频信号处理装置中构建视频帧的方法，其中，以预定单位为基础从视频信号生成多个宏块，并且通过将生成的多个宏组合 具有标题信息的块。 视频帧包括用于记录关于多个宏块之间的相关性的信息的一个相关信息字段，并且一个相关信息字段位于构成视频帧的多个宏块的前面。

公开(公告)号：US08228999B2

公开(公告)日：2012-07-24

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： H04N11/02 ,  H04J3/06

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：US20090196507A1

公开(公告)日：2009-08-06

申请号：US12322250

申请日：2009-01-30

申请人： Young-O Park ,  Kwan-Woong Song ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Su Kim ,  Jae-Kyun Ahn

发明人： Young-O Park ,  Kwan-Woong Song ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Su Kim ,  Jae-Kyun Ahn

IPC分类号： G06K9/48

CPC分类号： G06K9/00234 ,  G06K9/00369 ,  G06K9/48

摘要： A method and apparatus for estimating the contour of a user object in a moving picture during video communications so that a personal background image is not provided during video communications. Information about center coordinates as well as a size of a face of the user object is extracted from a moving picture frame. Edges are extracted from the moving picture frame, and a boundary of a head of the user object is estimated using a semicircle. The boundaries of left and right shoulders and left and right arms of the user object are estimated using second-order function graphs that overlap a largest portion of the edges. An entire contour of the user object is estimated according to the boundaries of the head, the left and right shoulders, and the left and right arms of the user object.

摘要翻译： 一种用于在视频通信期间估计运动图像中的用户对象的轮廓的方法和装置，使得在视频通信期间不提供个人背景图像。 从运动图像帧中提取关于中心坐标以及用户对象的面部大小的信息。 从运动图像帧提取边缘，并且使用半圆来估计用户对象的头部的边界。 使用与边缘的最大部分重叠的二阶函数图来估计用户对象的左肩和右肩和左右臂的边界。 用户对象的整体轮廓根据用户对象的头部，左肩和右肩部以及左右臂的边界来估计。

公开(公告)号：US08300947B2

公开(公告)日：2012-10-30

申请号：US12322250

申请日：2009-01-30

申请人： Young-O Park ,  Kwan-Woong Song ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Su Kim ,  Jae-Kyun Ahn

发明人： Young-O Park ,  Kwan-Woong Song ,  Young-Hun Joo ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Chang-Su Kim ,  Jae-Kyun Ahn

IPC分类号： G06K9/48

CPC分类号： G06K9/00234 ,  G06K9/00369 ,  G06K9/48

摘要： A method and apparatus for estimating the contour of a user object in a moving picture during video communications so that a personal background image is not provided during video communications. Information about center coordinates as well as a size of a face of the user object is extracted from a moving picture frame. Edges are extracted from the moving picture frame, and a boundary of a head of the user object is estimated using a semicircle. The boundaries of left and right shoulders and left and right arms of the user object are estimated using second-order function graphs that overlap a largest portion of the edges. An entire contour of the user object is estimated according to the boundaries of the head, the left and right shoulders, and the left and right arms of the user object.

摘要翻译： 一种用于在视频通信期间估计运动图像中的用户对象的轮廓的方法和装置，使得在视频通信期间不提供个人背景图像。 从运动图像帧中提取关于中心坐标以及用户对象的面部大小的信息。 从运动图像帧提取边缘，并且使用半圆来估计用户对象的头部的边界。 使用与边缘的最大部分重叠的二阶函数图来估计用户对象的左肩和右肩和左右臂的边界。 用户对象的整体轮廓根据用户对象的头部，左肩和右肩部以及左右臂的边界来估计。

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：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：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。