专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US08228999B2 Method and apparatus for reproduction of image frame in image receiving system 有权
标题翻译：用于在图像接收系统中再现图像帧的方法和装置
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。

32. 发明申请

US20080095471A1 Method and apparatus for interpolating chroma signal to minimize operation overhead 审中-公开
标题翻译：用于内插色度信号以最小化操作开销的方法和装置
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。

33. 发明申请

US20090141166A1 Selective error concealment method and apparatus for moving picture frame 有权
标题翻译：选择性错误隐藏方法和运动相框的设备
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。

34. 发明申请

US20080095243A1 H.264 decoding method and device for detection of NAL-unit error 审中-公开
标题翻译：用于检测NAL单元误差的H.264解码方法和装置
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。

35. 发明申请

US20070189384A1 Method and apparatus for reproduction of image frame in image receiving system 有权
标题翻译：用于在图像接收系统中再现图像帧的方法和装置
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。

36. 发明授权

US08199817B2 Method for error concealment in decoding of moving picture and decoding apparatus using the same 有权
标题翻译：运动图像解码中的误差隐藏方法及使用该方法的解码装置
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。

37. 发明申请

US20090161768A1 METHOD AND APPARATUS FOR VIDEO DECODING, IN THE PRESENCE OF NOISE 有权
标题翻译：用于视频解码的方法和装置，在噪声存在的情况下
公开(公告)号：US20090161768A1
公开(公告)日：2009-06-25
申请号：US12340826
申请日：2008-12-22
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： H04N7/64 , H04N7/26
CPC分类号： H04N19/117 , H04N19/154 , H04N19/172 , H04N19/44 , H04N19/61
摘要： A method and apparatus for decoding video data that is encoded by bit rate control to keep a bandwidth of a bit stream in a predetermined range are provided. The encoded video data is decoded, picture quality estimation information is estimated, the estimation including information about a bit stream size of a decoded video frame, the number of fragmented macro blocks included in the video frame, and the number of skip-mode macro blocks included in the video frame, the picture quality of the video data is determined based on a correlation between picture quality estimation information and SNR, and the video data is output by applying a picture quality improving algorithm to the video data, if the determined picture quality is lower than a predetermined level.
摘要翻译：提供了一种用于解码通过比特率控制编码以将比特流的带宽保持在预定范围内的视频数据的方法和装置。编码视频数据被解码，估计画面质量估计信息，包括关于解码视频帧的比特流大小的信息的估计，包括在视频帧中的分段宏块的数量和跳过模式宏块的数量包括在视频帧中，基于图像质量估计信息和SNR之间的相关性来确定视频数据的图像质量，并且通过对视频数据应用图像质量改进算法来输出视频数据，如果所确定的图像质量低于预定水平。

38. 发明申请

US20080080623A1 Method for error concealment in decoding of moving picture and decoding apparatus using the same 有权
标题翻译：运动图像解码中的误差隐藏方法及使用该方法的解码装置
公开(公告)号：US20080080623A1
公开(公告)日：2008-04-03
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： H04B1/66
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。

39. 发明授权

US08265165B2 Method and apparatus for video decoding to improve picture quality based on picture quality estimation, in the presence of noise 有权
标题翻译：用于视频解码的方法和装置，在存在噪声的情况下，基于图像质量估计提高图像质量
公开(公告)号：US08265165B2
公开(公告)日：2012-09-11
申请号：US12340826
申请日：2008-12-22
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： H04N7/26
CPC分类号： H04N19/117 , H04N19/154 , H04N19/172 , H04N19/44 , H04N19/61
摘要： A method and apparatus for decoding video data that is encoded by bit rate control to keep a bandwidth of a bit stream in a predetermined range are provided. The encoded video data is decoded, picture quality estimation information is estimated, the estimation including information about a bit stream size of a decoded video frame, the number of fragmented macro blocks included in the video frame, and the number of skip-mode macro blocks included in the video frame, the picture quality of the video data is determined based on a correlation between picture quality estimation information and SNR, and the video data is output by applying a picture quality improving algorithm to the video data, if the determined picture quality is lower than a predetermined level.
摘要翻译：提供了一种用于解码通过比特率控制编码以将比特流的带宽保持在预定范围内的视频数据的方法和装置。编码视频数据被解码，估计画面质量估计信息，包括关于解码视频帧的比特流大小的信息的估计，包括在视频帧中的分段宏块的数量以及跳过模式宏块的数量包括在视频帧中，基于图像质量估计信息和SNR之间的相关性来确定视频数据的图像质量，并且通过对视频数据应用图像质量改进算法来输出视频数据，如果所确定的图像质量低于预定水平。

40. 发明申请

US20070195892A1 DATA RECEIVING DEVICE AND METHOD FOR SHORTENING CHANNEL SWITCHING TIME IN DIGITAL MULTIMEDIA BROADCASTING SYSTEM 有权
标题翻译：数据接收设备和数字多媒体广播系统中信道切换时间的方法
公开(公告)号：US20070195892A1
公开(公告)日：2007-08-23
申请号：US11623800
申请日：2007-01-17
申请人： Kwang-Pyo Choi , Chang-Sup Shim
发明人： Kwang-Pyo Choi , Chang-Sup Shim
IPC分类号： H04N7/12
CPC分类号： H04N21/6131 , H04N21/2383 , H04N21/41407 , H04N21/41422 , H04N21/42615 , H04N21/4263 , H04N21/4382 , H04N21/4384 , H04N21/44004
摘要： Provided is a data receiving device and method for shortening a channel switching time in a DMB system. The device includes a CDM channel for receiving a broadcasting signal from a DMB satellite, demodulating the broadcast signal, and generating a MPEG2-TS packet. a GOP buffer for receiving the MPEG2-TS packet, checking whether or not the received MPEG2-TS packet is a key frame, and, when it is determined that the received MPEG2-TS packet is the key frame, initializing the buffer and storing the received MPEG2-TS packet as a GOP unit, a channel switch for switching a channel of a DMB service to the GOP buffer, an A/V reproducing buffer for buffering a predetermined amount of A/V data to reproduce the A/V data of the GOP buffer; and an A/V decoder for receiving and decoding the A/V data.
摘要翻译：提供了一种用于缩短DMB系统中的信道切换时间的数据接收装置和方法。该设备包括用于从DMB卫星接收广播信号的CDM信道，解调广播信号，以及生成MPEG2-TS分组。用于接收MPEG2-TS分组的GOP缓冲器，检查接收的MPEG2-TS分组是否是关键帧，并且当确定接收到的MPEG2-TS分组是关键帧时，初始化缓冲器并存储接收的MPEG2-TS分组作为GOP单元，用于将DMB服务的信道切换到GOP缓冲器的信道切换器，用于缓冲预定量的A / V数据以再现A / V数据的A / V数据的A / V再现缓冲器 GOP缓冲区; 以及用于接收和解码A / V数据的A / V解码器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式