专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6104439A Method and apparatus for motion estimation 失效
标题翻译：运动估计方法和装置
公开(公告)号：US6104439A
公开(公告)日：2000-08-15
申请号：US547011
申请日：1995-10-23
申请人： Jechang Jeong , Wooyoun Ahn , Byeungwoo Jeon
发明人： Jechang Jeong , Wooyoun Ahn , Byeungwoo Jeon
IPC分类号： G06T7/20 , H04N5/14 , H04N7/26 , H04N7/36
CPC分类号： G06T7/2013 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/51 , H04N19/523 , H04N5/145 , G06T2207/10016
摘要： A method for motion estimation includes steps for constructing a first image segment representing a portion of present image frame and a second image segment having a plurality of image segments of an adjacent frame, comparing said plurality of image segments of said second image segment with the image signal within the first image segment, and generating a number of error values, detecting a first motion vector at one scale of resolution using the generated error values, outputting the error value associated with a reference segment pointed by the first motion vector, and the error values corresponding to the reference segment shifted by one unit of selected resolution respectively in selected direction(s), generating a second motion vector in finer scale of resolution using the output error values, and summing the first and second motion vectors.
摘要翻译：一种用于运动估计的方法包括用于构建表示当前图像帧的一部分的第一图像片段和具有相邻帧的多个图像片段的第二图像片段的步骤，将所述第二图像片段的所述多个图像片段与图像信号，并且产生多个误差值，使用所生成的误差值以一个分辨率的尺度检测第一运动矢量，输出与由第一运动矢量指向的参考分段相关联的误差值，以及误差分别对应于在所选方向上移动了一个选定分辨率单位的参考分段的值，使用输出误差值产生更精细的分辨率尺度的第二运动矢量，并且对第一和第二运动矢量求和。

2. 发明授权

US5673363A Error concealment method and apparatus of audio signals 失效
标题翻译：音频信号错误隐藏方法和装置
公开(公告)号：US5673363A
公开(公告)日：1997-09-30
申请号：US575522
申请日：1995-12-20
申请人： Byeungwoo Jeon , Jechang Jeong
发明人： Byeungwoo Jeon , Jechang Jeong
IPC分类号： G10L13/04 , G10L13/00 , G10L19/00 , H03M13/00 , H04B1/66 , G10L5/02 , G10L3/00
CPC分类号： G10L19/005 , H04B1/667 , Y10S707/99945 , Y10S707/99948
摘要： An apparatus for concealing a frame or multiple of frames where errors have occurred in a digital audio signal which is subband coded and transform coded in units of an error-correctable frame is described. The error concealment apparatus includes an error detector for receiving frequency coefficients representing the encoded digital audio signal and detecting whether an error has occurred for each frame, and a decoder for decoding the frequency coefficients by respective subbands to form a frequency domain of the whole audio signal with respect to the input frequency coefficients. A buffer stores the frequency coefficients decoded by said decoder. Frequency coefficients of a frame or multiple of frames where errors have occurred are reconstructed using predetermined weight values and frequency coefficients of adjacent frames which do not have errors. Once reconstructed, the newly constructed frequency coefficients of the error frames are stored in the buffer also as to update the decoded coefficients stored therein corresponding to the error frames. The contents of the buffer are sent to a synthesis filter bank for converting the frequency coefficients into an audio signal of a time domain, in the same sequence as a decoding sequence.
摘要翻译：描述了一种用于隐藏以可纠错帧为单位进行子带编码和变换编码的数字音频信号中发生错误的帧或多个帧的装置。错误隐藏装置包括：误差检测器，用于接收表示编码数字音频信号的频率系数，并检测每个帧是否发生错误;解码器，用于通过各个子带对频率系数进行解码，以形成整个音频信号的频域相对于输入频率系数。缓冲器存储由所述解码器解码的频率系数。使用预定的权重值和没有错误的相邻帧的频率系数来重建发生错误的帧的帧或多个帧的频率系数。一旦重建，新构造的误帧的频率系数也被存储在缓冲器中，以便更新对应于错误帧的存储在其中的解码系数。将缓冲器的内容发送到合成滤波器组，以与解码序列相同的顺序将频率系数转换成时域的音频信号。

3. 发明授权

US5999111A Variable length encoding/decoding apparatus using re-association of symbol-codeword for variable length code table 失效
标题翻译：可变长度编码/解码装置，使用可变长度码表的符号码字重新关联
公开(公告)号：US5999111A
公开(公告)日：1999-12-07
申请号：US563018
申请日：1995-11-27
申请人： Juha Park , Byeungwoo Jeon , Jechang Jeong
发明人： Juha Park , Byeungwoo Jeon , Jechang Jeong
IPC分类号： H04N7/32 , H03M7/46 , H03M7/40
CPC分类号： H03M7/46
摘要： A variable length encoding/decoding apparatus using symbol-codeword re-association of a variable length code table includes a re-associator for storing symbol-address assignment information, address-codeword assignment information and address-counter-value assignment information, altering the symbol-address assignment information and the address-counter value assignment information according to the varied counter value due to the symbol identifying and outputting a variable length code table in which a symbol-codeword is re-associated to the encoder/decoder apparatus, and a controller for producing the initialized counter values based on probabilities of symbol occurrences belonging to the pre-defined variable length code table and the information stored in the re-associator based on the pre-defined updating unit, and storing the symbol-codeword re-associated variable length code table every predetermined updating unit in the encoder/decoder. A data compression efficiency can be improved even though global statistics corresponding to the pre-defined variable length code table and local statistics of the symbols/codewords which are actually variable-length-encoded/decoded do not match each other. Since it is not necessary to transmit the symbol-codeword re-association information at the encoding end to a decoding end, threre is no additional data to be transmitted by employing the present invention.
摘要翻译：使用可变长度码表的符号 - 码字重新关联的可变长度编码/解码装置包括用于存储符号地址分配信息，地址码字分配信息和地址 - 计数器值分配信息的重新关联器，改变符号由于符号识别而根据变化的计数器值地址分配信息和地址 - 计数器值分配信息，并输出其中符号码字被重新关联到编码器/解码器装置的可变长度码表，以及控制器用于基于预定义的可变长度代码表的符号出现的概率和基于预定义的更新单元存储在重新关联器中的信息来产生初始化的计数器值，以及存储符号码字重新相关变量编码器/解码器中的每个预定更新单元的长度代码表。即使与预定义的可变长度代码表相对应的全局统计信息和实际上可变长度编码/解码的符号/码字的本地统计信息彼此不匹配，也可以提高数据压缩效率。由于不需要将编码结束处的符号 - 码字重新关联信息发送到解码端，所以采用本发明不需要发送附加数据。

4. 发明授权

US5714950A System for variable-length-coding and variable-length-decoding digitaldata 失效
标题翻译：用于可变长度编码和可变长度解码数字数据的系统
公开(公告)号：US5714950A
公开(公告)日：1998-02-03
申请号：US606274
申请日：1996-02-23
申请人： Jechang Jeong , Byeungwoo Jeon
发明人： Jechang Jeong , Byeungwoo Jeon
IPC分类号： H03M7/40
CPC分类号： H04N19/00 , H04N19/129 , H04N19/15 , H04N19/176 , H04N19/61 , H04N19/13 , H04N19/70 , H04N19/91
摘要： A system for coding and decoding digital data divided into segments which includes coding the segment data into symbols according to various scanning patterns, accumulating the various lengths of variable-length-coded data, selecting a scanning pattern corresponding to a minimum accumulated length, transmitting or storing the coded data according to the selected scanning pattern and scanning the transmitted or retrieved data according to the same scanning pattern as applied to the coding process, thereby decoding the scanned data. As a result, the efficiency of data compression can be improved by means of utilizing an optimized scanning pattern for coding and decoding the segment data.
摘要翻译：一种用于将分割成段的数字数据进行编码和解码的系统，其包括根据各种扫描模式将段数据编码成符号，累积各种长度的可变长度编码数据，选择对应于最小累积长度的扫描模式，发送或根据所选择的扫描模式存储编码数据，并根据应用于编码处理的相同扫描模式扫描发送或检索的数据，从而对扫描数据进行解码。结果，可以通过利用优化的扫描模式来对段数据进行编码和解码来提高数据压缩的效率。

5. 发明授权

US10015512B2 Method for decoding images based on block mode information 有权
公开(公告)号：US10015512B2
公开(公告)日：2018-07-03
申请号：US13641673
申请日：2011-04-18
申请人： Jinhan Song , Jeongyeon Lim , Joohee Moon , Yunglyul Lee , Haekwang Kim , Byeungwoo Jeon , Jongki Han , Hyoungmee Park , Juock Lee
发明人： Jinhan Song , Jeongyeon Lim , Joohee Moon , Yunglyul Lee , Haekwang Kim , Byeungwoo Jeon , Jongki Han , Hyoungmee Park , Juock Lee
IPC分类号： H04N19/96 , H04N19/513 , H04N19/119 , H04N19/109 , H04N19/463 , H04N19/176 , H04N19/139 , H04N19/186 , H04N19/52
CPC分类号： H04N19/513 , H04N19/109 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/52 , H04N19/96
摘要： A video encoding/decoding apparatus includes a video encoder for encoding block mode information indicating whether a block mode of a block to be encoded in a macroblock is a skip mode, partition mode information and skip motion information including index information, encoding at least one of transform type information, CBP information, and delta quantization parameter information of the block according to a combination of the block mode information and the partition mode information, and encoding coefficient information of the block based on the encoded information of the block, and a video decoder for decoding a bitstream to reconstruct block mode information indicating whether a block mode of a block to be decoded is a skip mode, partition mode information indicating whether block is divided into subblocks, and skip motion information including index information, and reconstructing block based on the reconstructed information by using reconstructed skip motion information.

6. 发明授权

US09872019B2 Method and device for deblocking-filtering, and method and device for encoding and decoding using same 有权
公开(公告)号：US09872019B2
公开(公告)日：2018-01-16
申请号：US13811596
申请日：2011-07-20
申请人： Jinhan Song , Jeongyeon Lim , Byeungwoo Jeon , Joohee Moon , Yunglyul Lee , Haekwang Kim , Jongki Han , Jungyoup Yang
发明人： Jinhan Song , Jeongyeon Lim , Byeungwoo Jeon , Joohee Moon , Yunglyul Lee , Haekwang Kim , Jongki Han , Jungyoup Yang
IPC分类号： H04N19/176 , H04N19/86 , H04N19/117 , H04N19/159 , H04N19/136 , H04N19/82 , H04N19/167
CPC分类号： H04N19/86 , H04N19/117 , H04N19/136 , H04N19/159 , H04N19/167 , H04N19/82
摘要： An encoding apparatus for encoding a video signal includes: a prediction unit for generating a prediction block of a current block by using intra prediction or inter prediction; a residual data encoding unit for generating a residual block by using the current block and the prediction block, and transforming and quantizing the residual block; a residual data decoding unit for decoding a transformed and quantized residual block by inversely quantizing and inversely transforming the transformed and quantized residual block; and a deblocking filter unit for generating a reconstructed block by using a decoded residual block and the prediction block, and performing deblocking filtering, based on inter prediction information and intra prediction information of the reconstructed block and blocks neighboring the reconstructed block. The intra prediction information includes at least one of an intra prediction mode and an intra prediction block size.

7. 发明授权

US09686549B2 Method and apparatus for generating a reference frame and method and apparatus for encoding/decoding image using the same 有权
公开(公告)号：US09686549B2
公开(公告)日：2017-06-20
申请号：US13124635
申请日：2009-10-09
申请人： Hayoon Kim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Daeyeon Kim , Donghoon Han , Kioh Kim
发明人： Hayoon Kim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Daeyeon Kim , Donghoon Han , Kioh Kim
IPC分类号： H04N19/105 , H04N19/182 , H04N19/124 , H04N19/61 , H04N19/109 , H04N19/117 , H04N19/523 , H04N19/57 , H04N19/625
CPC分类号： H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/154 , H04N19/167 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/523 , H04N19/57 , H04N19/61 , H04N19/625
摘要： An apparatus for generating a reference frame is disclosed including: an interpolation unit for interpolating a reference frame per fractional pixel; a virtual encoder for determining a block mode of a current frame and a motion vector according to the block mode by using an interpolated reference frame; an offset calculator for calculating an offset for each pixel of the interpolated reference frame by using the block mode and the motion vector; and an offset adder for generating an offset interpolated reference frame by adding the offset for each pixel to each pixel of the interpolated reference frame. By adding the offset calculated according to the block mode to the reference frame for the inter prediction and making the reference frame to be used for the motion estimation and compensation similar to the current frame to be encoded, motion prediction is accurate and compression efficiency is improved.

8. 发明授权

US09641844B2 Method and apparatus for selecting a prediction mode, and image encoding/decoding method and apparatus using same 有权
公开(公告)号：US09641844B2
公开(公告)日：2017-05-02
申请号：US13264311
申请日：2010-04-14
申请人： Sunyeon Kim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Daeyeon Kim
发明人： Sunyeon Kim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Daeyeon Kim
IPC分类号： H04N19/61 , H04N19/11 , H04N19/14
CPC分类号： H04N19/11 , H04N19/14 , H04N19/61
摘要： The present disclosure concerns a method and apparatus for selecting an intra prediction mode and a video encoding/decoding method and apparatus using same. The encoding apparatus selects an intra prediction mode of current block to encode from input video by a variation of the value of pixel adjacent to the current block; encodes a residual block from intra-predicting the current block in the selected intra prediction mode of current block to generate coded coefficient bit having a bitstream generator for generating and outputting a bitstream including the coded coefficient bit and a prediction mode bit representing the selected intra prediction mode of current block by a macroblock or subblock unit with the prediction mode bit included selectively in the bitstream depending on the variation. Accordingly, selection process of a prediction mode for image compression is simplified, a faster compression is obtained and compressed data is deflated to improve compression efficiency.

9. 发明授权

US09532065B2 Image-filtering method and apparatus, and encoding/decoding method and apparatus using same 有权
标题翻译：图像滤波方法和装置，以及使用其的编码/解码方法和装置
公开(公告)号：US09532065B2
公开(公告)日：2016-12-27
申请号：US13697520
申请日：2011-05-12
申请人： Jinhan Song , Jeongyeon Lim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Jongki Han , Daeyeon Kim , Sungwook Hong
发明人： Jinhan Song , Jeongyeon Lim , Yunglyul Lee , Joohee Moon , Haekwang Kim , Byeungwoo Jeon , Jongki Han , Daeyeon Kim , Sungwook Hong
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/44 , H04N19/86 , H04N19/61 , H04N19/80 , H04N19/176 , H04N19/117 , H04N19/157 , H04N19/82
CPC分类号： H04N19/117 , H04N19/107 , H04N19/119 , H04N19/12 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/80 , H04N19/82 , H04N19/86 , H04N19/865
摘要： An image filtering apparatus and method and a video encoding/decoding apparatus and method using the same are disclosed. The image filtering apparatus includes: a boundary identifying unit for identifying a boundary between two transform blocks included in an image; a pixel/strength selecting unit for selecting a filtering strength according to a size of at least one transform block among the two transform blocks; and a filtering unit for filtering at least one pixel included in a region adjacent to the boundary.
摘要翻译：公开了一种图像滤波装置和方法以及使用该图像滤波装置和方法的视频编码/解码装置和方法。图像滤波装置包括：边界识别单元，用于识别包括在图像中的两个变换块之间的边界; 像素/强度选择单元，用于根据两个变换块中的至少一个变换块的大小来选择滤波强度; 以及滤波单元，用于对包含在与边界相邻的区域中的至少一个像素进行滤波。

10. 发明授权

US09319710B2 Video encoding and decoding apparatus and method 有权
标题翻译：视频编解码装置及方法
公开(公告)号：US09319710B2
公开(公告)日：2016-04-19
申请号：US13002582
申请日：2009-06-26
申请人： Hayoon Kim , Haekwang Kim , Byeungwoo Jeon , Yunglyul Lee , Joohee Moon , Jie Jia
发明人： Hayoon Kim , Haekwang Kim , Byeungwoo Jeon , Yunglyul Lee , Joohee Moon , Jie Jia
IPC分类号： H04N19/577 , H04N19/93
CPC分类号： H04N19/577 , H04N19/93
摘要： Video encoding and its corresponding decoding are disclosed. The video encoding incorporates: a predictor for predicting a pixel value of each pixel in a current block of the video to generate a predicted pixel value; a subtractor for calculating a difference between an original pixel value of the pixel in the current block and the predicted pixel value of the pixel in the current block to generate a residual signal; a transformer for transforming the residual signal into frequency coefficients; a quantizer for quantizing the transformed frequency coefficients; and an encoder for encoding the quantized frequency coefficients by using one of different variable length coding tables.
摘要翻译：公开了视频编码及其对应的解码。视频编码包括：预测器，用于预测视频的当前块中每个像素的像素值以产生预测像素值; 用于计算当前块中的像素的原始像素值与当前块中的像素的预测像素值之间的差异以产生残差信号的减法器; 用于将残余信号变换为频率系数的变压器; 用于量化变换频率系数的量化器; 以及编码器，用于通过使用不同的可变长度编码表之一来对量化的频率系数进行编码。

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