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

US07280597B2 System and method for determining coding modes, DCT types and quantizers for video coding 失效
标题翻译：用于确定编码模式的系统和方法，用于视频编码的DCT类型和量化器
公开(公告)号：US07280597B2
公开(公告)日：2007-10-09
申请号：US10602963
申请日：2003-06-24
申请人： Ximin Zhang , Hao-Song Kong , Anthony Vetro , Huifang Sun
发明人： Ximin Zhang , Hao-Song Kong , Anthony Vetro , Huifang Sun
IPC分类号： H04N7/12 , H04N11/02
CPC分类号： H04N19/192 , H04N19/112 , H04N19/122 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/172 , H04N19/19 , H04N19/196 , H04N19/197 , H04N19/61
摘要： A method encodes a video by first measuring a variance of pixel intensities in a current frame. A number of bits to encode the current frame is assigned according to rate and buffer fullness constraints. A multiplier value is determined directly as a function of only the variance and the number of bits assigned to the current frame. Motion vectors between a reference frame and the current frame are estimated, and a sum of absolute difference (SAD) is based on a motion compensated residual between the reference frame and the current frame. An encoding mode is determined for each macro block in the current frame based on the sum of absolute difference, the motion vectors and the multiplier value. Then, the motion compensated residual is encoded based on the encoding mode, multiplier value and the number of allocated bits.
摘要翻译：一种方法通过首先测量当前帧中的像素强度的方差来对视频进行编码。根据速率和缓冲区满足约束来分配对当前帧进行编码的位数。根据分配给当前帧的方差和比特数，直接确定乘数值。估计参考帧与当前帧之间的运动向量，并且绝对差（SAD）之和基于参考帧与当前帧之间的运动补偿残差。基于绝对差，运动矢量和乘数值之和确定当前帧中的每个宏块的编码模式。然后，基于编码模式，乘数值和分配位数来对运动补偿残差进行编码。

2. 发明授权

US07346224B2 System and method for classifying pixels in images 失效
标题翻译：用于对图像中的像素进行分类的系统和方法
公开(公告)号：US07346224B2
公开(公告)日：2008-03-18
申请号：US10964756
申请日：2004-10-14
申请人： Hao-Song Kong , Yao Nie , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Yao Nie , Anthony Vetro , Huifang Sun
IPC分类号： G06K9/40
CPC分类号： H04N19/176 , G06K9/4604 , G06K9/4642 , G06T7/11 , G06T7/143 , G06T2207/20012 , G06T2207/20021 , H04N19/117 , H04N19/14 , H04N19/61 , H04N19/86
摘要： A method classifies pixels in an image by first partitioning the image into blocks. A variance of an intensity is determined for each pixel, and for each block the pixel with the maximum variance is identified. Then, the blocks are classified into classes according to the maximum variance.
摘要翻译：一种方法是通过首先将图像划分成块来对图像中的像素进行分类。对于每个像素确定强度的方差，并且对于每个块，识别具有最大方差的像素。然后，块根据最大方差分类。

3. 发明授权

US07324698B2 Error resilient encoding method for inter-frames of compressed videos 失效
标题翻译：压缩视频帧间错误弹性编码方法
公开(公告)号：US07324698B2
公开(公告)日：2008-01-29
申请号：US10717679
申请日：2003-11-20
申请人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
IPC分类号： G06K9/36
CPC分类号： H04N19/513 , H04N19/895
摘要： A method encodes an inter-frame of a compressed video, the inter-frame including multiple macroblocks in a predetermined order. Each macroblock has an associated motion vector. For each current macroblock in the predetermined order, a set of near macroblocks are identified. An index is assigned to each near macroblock. A difference between the motion vector of the current macroblock and the motion vector of each near macroblocks is determined. The indices of the near macroblocks are then sorted in order of the differences and appended to the inter-frame.
摘要翻译：方法对压缩视频的帧间进行编码，帧间以预定顺序包括多个宏块。每个宏块具有相关的运动矢量。对于按照预定顺序的每个当前宏块，识别一组近似的宏块。索引被分配给每个近似的宏块。确定当前宏块的运动矢量与每个近似宏块的运动矢量之间的差异。然后按照差异的顺序对近宏块的索引进行排序并附加到帧间。

4. 发明申请

US20050111743A1 Error resilient encoding method for inter-frames of compressed videos 失效
标题翻译：压缩视频帧间错误弹性编码方法
公开(公告)号：US20050111743A1
公开(公告)日：2005-05-26
申请号：US10717679
申请日：2003-11-20
申请人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
IPC分类号： G06K9/36 , H04N19/895
CPC分类号： H04N19/513 , H04N19/895
摘要： A method encodes an inter-frame of a compressed video, the inter-frame including multiple macroblocks in a predetermined order. Each macroblock has an associated motion vector. For each current macroblock in the predetermined order, a set of near macroblocks are identified. An index is assigned to each near macroblock. A difference between the motion vector of the current macroblock and the motion vector of each near macroblocks is determined. The indices of the near macroblocks are then sorted in order of the differences and appended to the inter-frame.
摘要翻译：方法对压缩视频的帧间进行编码，帧间以预定顺序包括多个宏块。每个宏块具有相关的运动矢量。对于按照预定顺序的每个当前宏块，识别一组近似的宏块。索引被分配给每个近似的宏块。确定当前宏块的运动矢量与每个近似宏块的运动矢量之间的差异。然后按照差异的顺序对近宏块的索引进行排序并附加到帧间。

5. 发明申请

US20050100237A1 System and method for filtering artifacts in images 失效
标题翻译：用于过滤图像中伪像的系统和方法
公开(公告)号：US20050100237A1
公开(公告)日：2005-05-12
申请号：US10965325
申请日：2004-10-14
申请人： Hao-Song Kong , Yao Nie , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Yao Nie , Anthony Vetro , Huifang Sun
IPC分类号： G06T5/20 , G06K9/00 , G06K9/36 , G06K9/40 , G06T5/00 , H04N1/41 , H04N5/21 , H04N7/24 , H04N7/26 , H04N7/50
CPC分类号： H04N19/176 , G06K9/4604 , G06K9/4642 , G06T7/11 , G06T7/143 , G06T2207/20012 , G06T2207/20021 , H04N19/117 , H04N19/14 , H04N19/61 , H04N19/86
摘要： A method filters pixels in an image, by first partitioning the image into blocks. Edge block are identified. A variance of an intensity for each pixel in each edge block is determined. Then, each pixel in each edge block is filtered with a filter that is dependant on the variance of the pixel.
摘要翻译：一种方法通过首先将图像划分为块来过滤图像中的像素。识别边缘块。确定每个边缘块中每个像素的强度的方差。然后，使用取决于像素方差的滤波器对每个边缘块中的每个像素进行滤波。

6. 发明授权

US07394855B2 Error concealing decoding method of intra-frames of compressed videos 失效
标题翻译：错误隐藏压缩视频帧内解码方法
公开(公告)号：US07394855B2
公开(公告)日：2008-07-01
申请号：US10717826
申请日：2003-11-20
申请人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
IPC分类号： G06K9/40
CPC分类号： H04N19/895 , H04N19/159
摘要： A method conceals errors in an infra-frame of compressed video. The intra-frame is decoded to multiple macroblocks. Each macroblock including pixels arranged in a rectangular array. A lost macroblock is identified during the decoding. Pixels along an outer boundary of the lost macroblock are concealed from nearest candidate pixels along outer boundaries of macroblocks immediately adjacent to the lost macroblock. All other pixels in the lost macroblock are concealed from nearest candidate pixels selected from previously concealed pixels in the lost macroblock.
摘要翻译：一种方法隐藏了压缩视频的帧内错误。帧内解码为多个宏块。每个宏块包括以矩形阵列排列的像素。在解码期间识别丢失的宏块。沿着与丢失的宏块紧邻的宏块的外边界沿着离开的宏块的外边界的像素被隐藏起来。丢失的宏块中的所有其他像素从丢失宏块中的先前隐藏的像素中选择的最近的候选像素中隐藏。

7. 发明授权

US07142601B2 Transcoding compressed videos to reducing resolution videos 失效
标题翻译：将压缩视频转码为缩小分辨率的视频
公开(公告)号：US07142601B2
公开(公告)日：2006-11-28
申请号：US10413250
申请日：2003-04-14
申请人： Hao-Song Kong , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Anthony Vetro , Huifang Sun
IPC分类号： H04B1/66 , H04N7/12
CPC分类号： H04N19/59 , H04N19/126 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/40 , H04N19/60
摘要： A method and system transcodes an input video to a lower spatial resolution. The input video is first decoded into pictures. Each picture includes a set of macroblocks. Each picture sub-sampled to a downscaled picture having a lower spatial resolution. A quantization scale is selected for each macroblock in the downscaled picture. A set of motion vectors is generated for each macroblock in the downscaled picture. A multiplier value based on the quantization scale is determined for each macroblock in the downscaled picture. One of a plurality of encoding modes is selected for each macroblock in the downscaled picture according to the quantization scale, the motion vectors, and the multiplier value. Then, each macroblock in each downscaled picture is encoded according to the quantization scale, the selected encoding mode, and the set of motion vectors to produce an output video having a lower spatial resolution that the input video.
摘要翻译：方法和系统将输入视频转码为较低的空间分辨率。输入视频首先被解码为图片。每个图片包括一组宏块。每个图像被子采样到具有较低空间分辨率的缩小图像。对于缩小图像中的每个宏块选择量化比例。对于缩小图像中的每个宏块生成一组运动矢量。对于缩小图像中的每个宏块确定基于量化比例的乘数值。根据量化尺度，运动矢量和乘数值，对缩小图像中的每个宏块选择多个编码模式之一。然后，根据量化尺度，所选择的编码模式和运动矢量集合对每个缩小图像中的每个宏块进行编码，以产生输入视频具有较低空间分辨率的输出视频。

8. 发明申请

US20050111557A1 Error concealing decoding method of intra-frames of compressed videos 失效
标题翻译：错误隐藏压缩视频帧内解码方法
公开(公告)号：US20050111557A1
公开(公告)日：2005-05-26
申请号：US10717826
申请日：2003-11-20
申请人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Wei-Ying Kung , Anthony Vetro , Huifang Sun
IPC分类号： H04N7/12 , H04N19/895
CPC分类号： H04N19/895 , H04N19/159
摘要： A method conceals errors in an intra-fame of compressed video. The intra-frame is decoded to multiple macroblocks. Each macroblock including pixels arranged in a rectangular array. A lost macroblock is identified during the decoding. Pixels along an outer boundary of the lost macroblock are concealed from nearest candidate pixels along outer boundaries of macroblocks immediately adjacent to the lost macroblock. All other pixels in the lost macroblock are concealed from nearest candidate pixels selected from previously concealed pixels in the lost macroblock.
摘要翻译：一种方法隐藏压缩视频内部的错误。帧内解码为多个宏块。每个宏块包括以矩形阵列排列的像素。在解码期间识别丢失的宏块。沿着与丢失的宏块紧邻的宏块的外边界沿着离开的宏块的外边界的像素被隐藏起来。丢失的宏块中的所有其他像素从丢失宏块中的先前隐藏的像素中选择的最近的候选像素中隐藏。

9. 发明申请

US20050100235A1 System and method for classifying and filtering pixels 审中-公开
标题翻译：用于分类和过滤像素的系统和方法
公开(公告)号：US20050100235A1
公开(公告)日：2005-05-12
申请号：US10703809
申请日：2003-11-07
申请人： Hao-Song Kong , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Anthony Vetro , Huifang Sun
IPC分类号： G06T5/20 , G06K9/00 , G06K9/36 , G06K9/40 , G06T5/00 , H04N1/41 , H04N5/21 , H04N7/24 , H04N19/00
CPC分类号： H04N19/176 , G06T7/11 , G06T7/143 , G06T2207/20012 , G06T2207/20021 , H04N19/117 , H04N19/14 , H04N19/61 , H04N19/86
摘要： A method classifies pixels in an image. The image can be a decompressed image that was compressed using a block-based compression process. A filter is applied to each pixel in the image to determine a mean intensity value of the pixel. The mean is used to determine a mean-square intensity for each pixel, which in turn is used to determine a variance of the intensity for each pixel. The mean-square represents an average power of a DC component in the image, and the variance represents an average power of AC frequency components in the image. The pixels are then classified according to the variance as being either smooth, edge, or texture pixels. Blocks in the image can then be classified according to the classified pixels, and blocking artifacts and ringing artifacts in the blocks can then be filtered according to the block classification.
摘要翻译：一种方法对图像中的像素进行分类。图像可以是使用基于块的压缩过程压缩的解压缩图像。将滤波器应用于图像中的每个像素以确定像素的平均强度值。该平均值用于确定每个像素的均方强度，其依次用于确定每个像素的强度的方差。均方根表示图像中的直流分量的平均功率，方差表示图像中的交流频率分量的平均功率。然后将像素根据方差分类为平滑，边缘或纹理像素。然后可以根据分类的像素对图像中的块进行分类，然后可以根据块分类来过滤块中的块伪影和振铃伪像。

10. 发明申请

US20050013249A1 Redundant packets for streaming video protection 审中-公开
标题翻译：用于流视频保护的冗余数据包
公开(公告)号：US20050013249A1
公开(公告)日：2005-01-20
申请号：US10619358
申请日：2003-07-14
申请人： Hao-Song Kong , Huai-Rong Shao , Anthony Vetro , Huifang Sun
发明人： Hao-Song Kong , Huai-Rong Shao , Anthony Vetro , Huifang Sun
IPC分类号： H04L29/06 , H04L29/14 , H04L12/28
CPC分类号： H04L65/4084 , H04L29/06027 , H04L65/602 , H04L65/80 , H04L69/40
摘要： A method transmits a video over a network as a bit stream of packets. Real-time feedback information on conditions of the network is received while transmitting the packets. A probability of packet loss is based on the real-time feedback. Then, redundant packets are generated for selected packets of the bit stream if the probability of packet loss is greater than a predetermined threshold.
摘要翻译：一种方法通过网络发送视频作为分组的比特流。在发送数据包时接收到网络状况的实时反馈信息。丢包的概率是基于实时反馈。然后，如果分组丢失的概率大于预定阈值，则为比特流的所选分组生成冗余分组。

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