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    Apparatus and method for image encoding and decoding
    31.
    发明申请
    Apparatus and method for image encoding and decoding 审中-公开
    图像编码和解码的装置和方法

    公开(公告)号：US20060268982A1

    公开(公告)日：2006-11-30

    申请号：US11288293

    申请日：2005-11-29

    申请人： Sang-rae Lee ,  So-young Kim ,  Jeong-hoon Park ,  Yu-mi Sohn

    发明人： Sang-rae Lee ,  So-young Kim ,  Jeong-hoon Park ,  Yu-mi Sohn

    IPC分类号： H04N11/04 ,  H04N7/12 ,  H04B1/66 ,  H04N11/02

    CPC分类号： H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/147 ,  H04N19/563 ,  H04N19/593 ,  H04N19/61

    摘要： Provided is an apparatus and method for video encoding and decoding, in which video encoding and decoding are performed using blocks of a predetermined shape that increases the number of adjacent blocks that can be used for intraprediction. A video encoder includes a picture division unit and an encoding unit. The picture division unit divides a picture to be encoded into blocks of the predetermined shape that allows at least three adjacent blocks to be used in intraprediction. The encoding unit performs encoding in a predetermined scanning order that allows at least three adjacent blocks to be used in intraprediction of the divided blocks.

    摘要翻译： 提供了一种用于视频编码和解码的装置和方法，其中使用增加可用于帧内预测的相邻块的数量的预定形状的块来执行视频编码和解码。 视频编码器包括图像分割单元和编码单元。 图像分割单元将要编码的图像划分成允许至少三个相邻块在预测中使用的预定形状的块。 编码单元以预定的扫描顺序执行编码，其允许在分割块的预测中使用至少三个相邻块。

    Method and apparatus for predicting frequency transform coefficients in video codec, video encoder and decoder having the apparatus, and encoding and decoding method using the method
    32.
    发明申请
    Method and apparatus for predicting frequency transform coefficients in video codec, video encoder and decoder having the apparatus, and encoding and decoding method using the method 审中-公开
    用于预测具有该装置的视频编解码器，视频编码器和解码器中的频率变换系数的方法和装置，以及使用该方法的编码和解码方法

    公开(公告)号：US20060159354A1

    公开(公告)日：2006-07-20

    申请号：US11273321

    申请日：2005-11-15

    申请人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Seung-ran Park ,  Yu-mi Sohn

    发明人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Seung-ran Park ,  Yu-mi Sohn

    IPC分类号： G06K9/36

    CPC分类号： H04N19/48 ,  H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

    摘要： Provided are a method and apparatus for predicting frequency transform coefficients in a video codec, a video encoder and decoder having the apparatus, and an encoding and decoding method using the method. The method of predicting the frequency transform coefficients in a frequency transform domain includes: calculating a cost between a DC coefficient of a current frequency transformed block that is to be predicted and DC coefficients of frequency transformed blocks adjacent in horizontal, vertical, and diagonal directions with respect to the current frequency transformed block; and selecting an adjacent block with the smallest calculated cost, and predicting DC and AC coefficients of the current frequency transformed block using coefficients of the selected adjacent block. Accordingly, compression efficiency can be improved, and video data can be effectively encoded reflecting the characteristics of various patterns by calculating prediction values of numerous patterns.

    摘要翻译： 提供一种用于预测视频编解码器中的频率变换系数的方法和装置，具有该装置的视频编码器和解码器，以及使用该方法的编码和解码方法。 预测频率变换域中的频率变换系数的方法包括：计算要预测的当前频率变换块的DC系数与在水平，垂直和对角线方向相邻的频率变换块的DC系数之间的成本， 相对于当前频率变换块; 以及选择具有最小计算成本的相邻块，并且使用所选择的相邻块的系数来预测当前频率变换块的DC和AC系数。 因此，可以提高压缩效率，并且可以通过计算许多图案的预测值来有效地编码反映各种图案的特征的视频数据。

    Decoding method, medium, and apparatus
    33.
    发明申请
    Decoding method, medium, and apparatus 失效
    解码方法，介质和装置

    公开(公告)号：US20050204210A1

    公开(公告)日：2005-09-15

    申请号：US11050768

    申请日：2005-02-07

    申请人： Austin Lobo ,  Sang-rae Lee

    发明人： Austin Lobo ,  Sang-rae Lee

    IPC分类号： H04N7/24 ,  G01R31/28 ,  G06F11/00 ,  H04L25/34 ,  H04L25/49 ,  H04N7/26 ,  H04N7/64

    CPC分类号： H04L1/00 ,  H03M13/63 ,  H04N19/436 ,  H04N19/44 ,  H04N19/89 ,  H04N19/91 ,  H04N21/4425

    摘要： A decoding method, medium, and apparatus capable of preventing error propagation and implementing parallel processing. A decoding method includes comparing encoding information with decoding information at synchronization points for detecting a transmission error, and continuing to decode the encoded data if both the encoding and decoding information match, or continuing to decode remaining data located beyond the corresponding synchronization point by limiting a transmission error region to between the corresponding synchronization point and an immediately previous synchronization point, with reference to the encoding information if the encoding and decoding information do not match. Furthermore, the encoded data of a plurality of regions are simultaneously decoded in parallel, with reference to the encoding information of a plurality of synchronization points. Therefore, it is possible to prevent error propagation by limiting the transmission error within a smallest possible length and to reduce a decoding time by using a parallel processing.

    摘要翻译： 能够防止误差传播并实现并行处理的解码方法，介质和装置。 解码方法包括将编码信息与在检测传输错误的同步点处的解码信息进行比较，以及如果编码和解码信息都匹配则继续对编码数据进行解码，或者通过限制编码信息来解码剩余的数据， 如果编码和解码信息不匹配，则参考编码信息，在相应的同步点和紧接在前的同步点之间的传输错误区域。 此外，参考多个同步点的编码信息，并行地同时解码多个区域的编码数据。 因此，可以通过限制最小可能长度内的传输误差来防止误差传播，并且可以通过并行处理来减少解码时间。

    Color image encoding and decoding method and apparatus using a correlation between chrominance components
    36.
    发明授权
    Color image encoding and decoding method and apparatus using a correlation between chrominance components 有权
    使用色度分量之间的相关性的彩色图像编码和解码方法和装置

    公开(公告)号：US07970219B2

    公开(公告)日：2011-06-28

    申请号：US11219735

    申请日：2005-09-07

    申请人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Seung-ran Park ,  Yu-mi Sohn

    发明人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Seung-ran Park ,  Yu-mi Sohn

    IPC分类号： G06K9/36

    CPC分类号： H04N19/93 ,  H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/46

    摘要： A color image encoding and decoding method and apparatus use a correlation between chrominance components in order to improve coding efficiency. The color image decoding method includes: transforming chrominance components of a color image in each of two or more inter-prediction modes, calculating costs for the conversion values in each of the two or more inter-prediction modes using a predetermined cost function, selecting one of the two or more inter-prediction modes based on the calculation result, and outputting conversion values of the selected inter-prediction mode; entropy encoding the output conversion values.

    摘要翻译： 彩色图像编码和解码方法和装置使用色度分量之间的相关性来提高编码效率。 彩色图像解码方法包括：使用预定的成本函数，在两个或多个帧间预测模式中的每一个中变换彩色图像的色度分量，计算两个或更多个帧间预测模式中的每个中的转换值的成本，选择一个 基于所述计算结果，输出所述两个或多个帧间预测模式，并输出所选择的帧间预测模式的转换值; 熵编码输出转换值。

    Decoding method and decoding apparatus
    37.
    发明授权
    Decoding method and decoding apparatus 失效
    解码方法和解码装置

    公开(公告)号：US07653136B2

    公开(公告)日：2010-01-26

    申请号：US11023547

    申请日：2004-12-29

    申请人： Austin Lobo ,  Sang-rae Lee

    发明人： Austin Lobo ,  Sang-rae Lee

    IPC分类号： H04N7/12

    CPC分类号： H04N19/89 ,  H04N19/463 ,  H04N19/91

    摘要： A decoding method of detecting a transmission error region and recovering correctly decoded data and a decoding apparatus using the same. The decoding method includes comparing encoding status information with decoding status information by receiving encoded data and the encoding status information of at least one synchronization point set in every predetermined period to detect a transmission error and to obtain the decoding status information of a corresponding synchronization point while decoding the encoded data, and continuing to decode the received data if the encoding status information of the at least one synchronization point is the same as the decoding status information of the corresponding synchronization point, and recovering previously decoded data before a previous synchronization point by detecting a transmission error region between the corresponding synchronization point and the previous synchronization point if the encoding status information is different from the decoding status information. It is possible to detect an error for each synchronization point and recover data positioned in a region having no error.

    摘要翻译： 一种检测传输误差区域并恢复正确解码的数据的解码方法和使用其的解码装置。 解码方法包括通过接收编码数据和每个预定周期中设置的至少一个同步点的编码状态信息来比较编码状态信息与解码状态信息，以检测传输错误并获得相应同步点的解码状态信息，同时 对编码数据进行解码，如果至少一个同步点的编码状态信息与对应的同步点的解码状态信息相同，则继续对接收到的数据进行解码，并且通过检测先前的同步点之后恢复先前解码的数据 如果编码状态信息与解码状态信息不同，则在相应同步点和先前同步点之间的传输错误区域。 可以检测每个同步点的错误并恢复位于没有错误的区域中的数据。

    Apparatus and method for image encoding and decoding and recording medium having recorded thereon a program for performing the method
    40.
    发明申请
    Apparatus and method for image encoding and decoding and recording medium having recorded thereon a program for performing the method 审中-公开
    用于图像编码和解码和记录介质的装置和方法，其上记录有用于执行该方法的程序

    公开(公告)号：US20070058715A1

    公开(公告)日：2007-03-15

    申请号：US11509556

    申请日：2006-08-25

    申请人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Yu-mi Sohn

    发明人： So-young Kim ,  Jeong-hoon Park ,  Sang-rae Lee ,  Yu-mi Sohn

    IPC分类号： H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/59 ,  H04N19/107 ,  H04N19/11 ,  H04N19/137 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

    摘要： An intraprediction encoding and decoding apparatus and method, and a recording medium having recorded thereon a program for performing the methods are provided. The image encoding method includes dividing an input image into at least two sub-planes; performing transformation and quantization on the sub-planes; performing intraprediction encoding on at least one of the transformed and quantized sub-planes; and performing interprediction encoding on at least one remaining transformed and quantized sub-plane that has not been intraprediction encoded by using the at least one intraprediction encoded sub-plane as a reference sub-plane. The decoding method includes receiving an encoded bitstream; entropy decoding the received bitstream; performing intraprediction decoding on at least one intraprediction encoded sub-plane included in the entropy decoded image data; performing interprediction decoding on at least one remaining sub-plane included in the entropy encoded image data using the intraprediction decoded sub-plane as a reference sub-plane; and performing inverse quantization and inverse transformation on the decoded sub-planes.

    摘要翻译： 提供了一种内部预测编码和解码装置和方法，以及在其上记录有用于执行该方法的程序的记录介质。 图像编码方法包括将输入图像划分为至少两个子平面; 在子平面上进行变换和量化; 对所述经变换和量化的子平面中的至少一个进行预处理编码; 以及对至少一个尚未通过使用所述至少一个预测预测编码子平面作为参考子平面进行了内部预测的剩余变换和量化子平面执行插值编码。 解码方法包括接收编码比特流; 对所接收的比特流进行熵解码; 对包含在所述熵解码图像数据中的至少一个预预测编码子平面进行预处理解码; 使用所述预测解码子平面作为参考子平面，对包含在所述熵编码图像数据中的至少一个剩余子平面进行插值预解码; 对解码后的子平面进行逆量化和逆变换。