公开(公告)号：US20070120972A1

公开(公告)日：2007-05-31

申请号：US11604762

申请日：2006-11-28

申请人： Tae-hee Kim ,  Pil-ho Yu ,  Dae-sik Kim

发明人： Tae-hee Kim ,  Pil-ho Yu ,  Dae-sik Kim

IPC分类号： H04N13/04

CPC分类号： H04N13/133 ,  H04N13/144 ,  H04N2213/002

摘要： Provided are an apparatus and method for processing a three-dimensional (3D) video signal which corrects first and second video signals to prevent a reduction in a 3D effect and a disparity estimation error due to a difference between the first and second video signals. The method includes: a video signal detection unit detecting a difference between respective characteristics of received first and second video signals; and a video signal correction unit correcting the first video signal or the second video signal to equalize the characteristics of the first and second video signals. When the apparatus and the method are used, a reduction in the 3D effect and the disparity estimation error due to the difference between the first and second video signals can be prevented.

摘要翻译： 提供一种用于处理三维（3D）视频信号的装置和方法，其校正第一和第二视频信号以防止3D效果的降低和由于第一和第二视频信号之间的差异引起的视差估计误差。 该方法包括：视频信号检测单元，检测所接收的第一和第二视频信号的各个特性之间的差异; 以及视频信号校正单元，校正第一视频信号或第二视频信号以均衡第一和第二视频信号的特性。 当使用装置和方法时，可以防止由于第一和第二视频信号之间的差异引起的3D效果和视差估计误差的降低。

公开(公告)号：US07944481B2

公开(公告)日：2011-05-17

申请号：US11604762

申请日：2006-11-28

申请人： Tae-hee Kim ,  Pil-ho Yu ,  Dae-sik Kim

发明人： Tae-hee Kim ,  Pil-ho Yu ,  Dae-sik Kim

IPC分类号： H04N5/228

CPC分类号： H04N13/133 ,  H04N13/144 ,  H04N2213/002

摘要： Provided are an apparatus and method for processing a three-dimensional (3D) video signal which corrects first and second video signals to prevent a reduction in a 3D effect and a disparity estimation error due to a difference between the first and second video signals. The method includes: a video signal detection unit detecting a difference between respective characteristics of received first and second video signals; and a video signal correction unit correcting the first video signal or the second video signal to equalize the characteristics of the first and second video signals. When the apparatus and the method are used, a reduction in the 3D effect and the disparity estimation error due to the difference between the first and second video signals can be prevented.

摘要翻译： 提供一种用于处理三维（3D）视频信号的装置和方法，其校正第一和第二视频信号以防止3D效果的降低和由于第一和第二视频信号之间的差异引起的视差估计误差。 该方法包括：视频信号检测单元，检测所接收的第一和第二视频信号的各个特性之间的差异; 以及视频信号校正单元，校正第一视频信号或第二视频信号以均衡第一和第二视频信号的特性。 当使用装置和方法时，可以防止由于第一和第二视频信号之间的差异引起的3D效果和视差估计误差的降低。

公开(公告)号：US20070041443A1

公开(公告)日：2007-02-22

申请号：US11497255

申请日：2006-08-02

申请人： Tae-hyeun Ha ,  Pil-ho Yu

发明人： Tae-hyeun Ha ,  Pil-ho Yu

IPC分类号： H04N11/04 ,  H04N7/12

CPC分类号： H04N19/61 ,  H04N13/194 ,  H04N19/51 ,  H04N19/597

摘要： A method and an apparatus for encoding a multiview video using a minimum amount of information regarding the multiview video are provided. The method includes: categorizing a plurality of B frames into at least two groups according to a predetermined standard; and sequentially encoding the categorized B frames. Therefore, a multiview video which is realistic can be simultaneously provided to many people using a minimum amount of information regarding the multiview video.

摘要翻译： 提供了使用关于多视角视频的最小量的信息对多视图视频进行编码的方法和装置。 该方法包括：根据预定标准将多个B帧分类成至少两组; 并顺序编码分类的B帧。 因此，可以使用关于多视图视频的最少量的信息，向许多人同时提供现实的多视图视频。

公开(公告)号：US6141383A

公开(公告)日：2000-10-31

申请号：US972259

申请日：1997-11-18

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： H04N7/24 ,  G06T9/00 ,  H04N7/26 ,  H04N7/50 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/427 ,  H04N19/423 ,  H04N19/61

摘要： A method and apparatus are provided for controlling the timing between video decoding and video displaying. The apparatus contains a video decoder for decoding a B picture included in an input video bitstream, on the basis of previous and following I and P pictures, a memory for storing the decoded B picture by one frame, and a decoding controller for comparing the amount of data displayed with the amount of data decoded while outputting the decoded B picture stored in the memory, and controlling decoding of a subsequent B picture to prevent the decoding from overlapping with the displaying. In the apparatus, although the memory space for B picture storage is set as one frame, the decoding of a picture is prevented from overlapping with the displaying thereof. Thus, decoding efficiency is not lessened even though a memory of two frame size is not employed.

摘要翻译： 提供了一种用于控制视频解码和视频显示之间的定时的方法和装置。 该装置包含一个视频解码器，用于根据先前和随后的I和P图像对包含在输入视频比特流中的B图像进行解码，一个用于将解码的B图像存储一帧的存储器，以及一个解码控制器， 在输出存储在存储器中的解码的B图像的同时显示数据解码的数据，并控制后续B图像的解码，以防止解码与显示重叠。 在该装置中，尽管将B图像存储的存储空间设置为一帧，但是防止图像的解码与其显示重叠。 因此，即使不采用两帧大小的存储器，解码效率也不会降低。

公开(公告)号：US5696506A

公开(公告)日：1997-12-09

申请号：US436866

申请日：1995-05-08

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： H04N19/46 ,  G06T9/00 ,  H03M7/40 ,  H03M7/42 ,  H04N1/41 ,  H04N7/24 ,  H04N19/00 ,  H04N19/423 ,  H04N19/70 ,  H04N19/91 ,  H04N19/93

CPC分类号： G06T9/005 ,  H03M7/425

摘要： An apparatus for decoding variable-length codewords has a FIFO memory which stores a bitstream and outputs an N-bit sequence from the first bit position in the stored bitstream in response to a carry signal. The number of bits "N" corresponds to the longest variable-length codeword. A barrel shifter receives part of a 2N-bit sequence in response to the carry signal, and outputs an N-bit sequence in response to the accumulated codeword length. Another barrel shifter outputs an N-bit sequence in response to the codeword length for storing the 2N-bit sequence from the first barrel shifter. The decoder generates a run-length and a level corresponding to a variable-length codeword starting at a first bit position in the N-bit sequence. The decoder generates a second run equivalent signal during a run-length interval, and then outputs data of "0" in response to the second run equivalent signal, and outputs a level in response to the first run equivalent signal. A codeword length generator generates a codeword corresponding to the first variable-length codeword in the output of the second barrel shifter. An operator adds and modulo-N-operates a previously accumulated codeword length and a codeword length from the codeword length generator and outputs the residue as an accumulated codeword length and the quotient as a carry signal.

摘要翻译： 用于解码可变长度码字的装置具有FIFO存储器，其存储比特流并响应于进位信号从存储的比特流中的第一比特位置输出N比特序列。 比特数“N”对应于最长的可变长度码字。 桶形移位器响应于进位信号接收2N位序列的一部分，并且响应于累积码字长度输出N位序列。 另一个桶形移位器响应于用于存储来自第一桶形移位器的2N位序列的码字长度而输出N位序列。 解码器生成与N位序列中的第一比特位置开始的可变长度码字对应的游程长度和级别。 解码器在游程长度间隔期间产生第二行程等效信号，然后响应于第二行程等效信号输出数据“0”，并且响应于第一行程等效信号而输出电平。 码字长度生成器产生与第二桶形移位器的输出中的第一可变长度码字对应的码字。 运算符对来自码字长度生成器的先前累积的码字长度和码字长度进行加法运算，并输出残差作为累积码字长度，并将商作为进位信号。

公开(公告)号：US20070008575A1

公开(公告)日：2007-01-11

申请号：US11362740

申请日：2006-02-28

申请人： Pil-ho Yu ,  Tae-hyeun Ha

发明人： Pil-ho Yu ,  Tae-hyeun Ha

IPC分类号： G06F3/12

CPC分类号： H04N21/435 ,  H04N13/156 ,  H04N13/194 ,  H04N13/239 ,  H04N13/243 ,  H04N13/349 ,  H04N13/359 ,  H04N13/361 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N21/21805 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/4348 ,  H04N21/816

摘要： An image transmitting apparatus and method and an image receiving apparatus and method, the image receiving apparatus including a decoder receiving and decoding an image signal including image data and an image characteristic parameter which contains information indicating whether the image data represents a two-dimensional (2D) image or a three-dimensional (3D) image, an image characteristic parameter detector receiving the decoded image signal and extracting and interpreting the image characteristic parameter from the decoded image signal, and a display unit receiving the image characteristic parameter from the image characteristic parameter detector and displaying the image data received from the decoder according to the image characteristic parameter, to display a 2D image and a 3D image in various fields, such as a 3D image broadcast, etc., that can be shown on a digital broadcast standard system.

摘要翻译： 一种图像发送装置和方法以及图像接收装置和方法，所述图像接收装置包括解码器，接收和解码包括图像数据的图像信号和图像特性参数，所述图像特征参数包含指示所述图像数据是否表示二维（2D ）图像或三维（3D）图像，图像特征参数检测器，接收解码图像信号，并从解码图像信号中提取和解释图像特征参数;以及显示单元，从图像特征参数接收图像特征参数 检测器，并且根据图像特性参数显示从解码器接收的图像数据，以在可以在数字广播标准系统上显示的各种领域（例如3D图像广播等）中显示2D图像和3D图像 。

公开(公告)号：US5828426A

公开(公告)日：1998-10-27

申请号：US699938

申请日：1996-08-20

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50 ,  H04N7/01

CPC分类号： H04N19/61 ,  H04N19/13 ,  H04N19/91

摘要： A decoding apparatus for use in decoding data encoded according to MPEG-1 and MPEG-2 standards. The decoding apparatus generates a signal indicating that received data is encoded according to the MPEG-2 standard if an expansion start code is contained in the input data, while a code standard signal indicating the MPEG-1 code standard is generated if no expansion start code is contained in the input data. A run level determiner outputs data from one portion of the input data as an escape code level, when the code standard signal indicates the MPEG-2 code standard, and determines the escape code level according to whether an absolute value of data within a specific bit interval contained in the portion of data is larger than or equal to, or less than, 128, when the code standard signal indicates the MPEG-1 code standard.

摘要翻译： 一种用于解码根据MPEG-1和MPEG-2标准编码的数据的解码装置。 如果在输入数据中包含扩展起始码，则解码装置产生指示接收的数据根据​​MPEG-2标准被编码的信号，而如果没有扩展起始码，则产生指示MPEG-1代码标准的代码标准信号 包含在输入数据中。 当代码标准信号指示MPEG-2代码标准时，运行级别确定器从输入数据的一部分输出数据作为转义码级别，并且根据特定位中的数据的绝对值来确定转义码级别 当代码标准信号表示MPEG-1代码标准时，包含在数据部分中的间隔大于或等于或小于128。

公开(公告)号：US20050271298A1

公开(公告)日：2005-12-08

申请号：US11129285

申请日：2005-05-16

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： H04N5/21 ,  G06K9/00 ,  G06T5/00 ,  H04N5/208 ,  H04N17/00 ,  H04N17/02

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/20021 ,  H04N17/00

摘要： A noise measurement apparatus and a method thereof capable of reducing an error in measuring a noise of incoming image signals. A picture of an incoming image signal is broken into at least two blocks and an average brightness value with respect to each block is calculated in a sequence. At least two first data, each being a sum of differences between the calculated average brightness value and brightness values of respective constituent pixels of the block, where the average brightness value is calculated, and a spatial noise is calculated based on the at least two first data. At least two second data that indicate a difference a brightness value of each block of the picture and a brightness value of each block of a delayed picture is calculated, and a temporal noise is calculated based on the at least two second data. A noise on the image signal is calculated based on the spatial noise and the temporal noise.

摘要翻译： 一种噪声测量装置及其方法，其能够减少测量输入图像信号的噪声的误差。 输入图像信号的图像被分解为至少两个块，并且按顺序计算相对于每个块的平均亮度值。 至少两个第一数据，每个是计算的平均亮度值和计算平均亮度值的块的各个组成像素的亮度值之间的差的和，并且基于至少两个第一数据来计算空间噪声 数据。 计算指示图像的每个块的亮度值与延迟图像的每个块的亮度值之间的差异的至少两个第二数据，并且基于该至少两个第二数据计算时间噪声。 基于空间噪声和时间噪声计算图像信号上的噪声。

公开(公告)号：US5825928A

公开(公告)日：1998-10-20

申请号：US565128

申请日：1995-11-30

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： H04N7/12 ,  G06T9/00 ,  H04N19/895 ,  G06K9/36

CPC分类号： H04N19/51 ,  H04N19/895

摘要： A motion image decoding apparatus receives encoded image data which has first, second and third data regions, such as MPEG macroblocks which have predetermined sizes, and a motion vector for each of the data regions. The motion image decoding apparatus conceals errors in the first data region by generating an error signal and using a motion vector of a second data region which is located on a line preceding a line containing the first data region having the error and which is in a same picture as the first data region and also by using a motion vector corresponding to a third data region which is located in a column preceding the column containing the first data region having the error and which is also in a same picture as that of the first data region. If no error is generated in the first data region, the motion vector for that data region is used to perform motion compensation.

摘要翻译： 运动图像解码装置接收具有第一，第二和第三数据区域的编码图像数据，例如具有预定尺寸的MPEG宏块，以及每个数据区域的运动矢量。 运动图像解码装置通过产生误差信号并使用第二数据区域的运动矢量来隐藏第一数据区域中的错误，该第二数据区域位于包含具有该错误的第一数据区域的行之前的一行 图像作为第一数据区域，并且还通过使用对应于第三数据区域的运动矢量，所述第三数据区域位于包含具有所述错误的第一数据区域的列之前的列中，并且还与第一数据的图像相同 地区。 如果在第一数据区域中没有产生错误，则使用该数据区域的运动矢量来执行运动补偿。

公开(公告)号：US07130481B2

公开(公告)日：2006-10-31

申请号：US10247625

申请日：2002-09-20

申请人： Pil-ho Yu

发明人： Pil-ho Yu

IPC分类号： G06K9/40 ,  H04N5/217

CPC分类号： G06T5/50 ,  G06T5/002 ,  G06T5/20 ,  G06T7/254 ,  G06T2207/20008 ,  G06T2207/20182

摘要： A method of adaptively attenuating image-noise according to a degree of motion of an image signal and an apparatus therefor are provided. An input image signal is filtered in a spatial area to attenuate noise of the input image signal. The input image signal is filtered in a temporal direction to attenuate noise of the input image signal. A degree of motion of the input image signal is extracted each predetermined period. An image signal whose noise is spatially attenuated is mixed with an image signal whose noise is temporally attenuated according to the degree of motion of the input image signal and a mixed image signal is output.