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11. 发明申请

US20100183069A1 Method and Apparatus for Determining in Picture Signal Encoding the Bit Allocation for Groups of Pixel Blocks in a Picture 有权
标题翻译：用于确定编码图像中像素块组的位分配的图像信号的方法和装置
公开(公告)号：US20100183069A1
公开(公告)日：2010-07-22
申请号：US12224080
申请日：2007-02-16
申请人： Zhi Bo Chen , Xiao Dong Gu , Qu Qing Chen
发明人： Zhi Bo Chen , Xiao Dong Gu , Qu Qing Chen
IPC分类号： H04N7/12
CPC分类号： H04N19/192 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/17 , H04N19/176 , H04N19/19 , H04N19/61
摘要： Optimised bit allocation is important in video compression to increase the coding efficiency, i.e. to make optimum use of the available data rate. In view of the human visual system, a human usually pays more attention to some part of a picture rather than to other parts of that picture. Therefore the bit allocation should be optimised for different-attention picture areas (GOBi). The inventive distortion-driven bit allocation scheme allocates the coding/decoding error distortion to picture areas consistently with the human visual system, and satisfies the constraint of bit rate as well. The invention uses a distortion/bitrate/rhoquantisation parameter histogram analysis. Based on corresponding tables (DGOBi[QPn], RGOBi[QPn] and ρGOBi[QPn]), the relationships between quantisation parameter, rate, distortion and percentage of non-zero coefficients for the different-attention areas are determined (PREALUTI, DISALL, RALL). Thereafter a rho-domain bit rate control is used (RDBALL) for calculating the bit allocation inside each group of macroblocks.
摘要翻译：优化的比特分配在视频压缩中是重要的，以增加编码效率，即最佳地利用可用的数据速率。鉴于人类视觉系统，人类通常会更多地关注图片的某些部分，而不是照片的其他部分。因此，应该针对不同的注意图像区域（GOBi）优化位分配。本发明的失真驱动比特分配方案将编码/解码误差失真与人类视觉系统一致地分配给图像区域，并且也满足比特率的约束。本发明使用失真/比特率/量化参数直方图分析。基于相应的表（DGOBi [QPn]，RGOBi [QPn]和＆rgr; GOBi [QPn]），确定不同注意区域的量化参数，速率，失真和非零系数百分比之间的关系（PREALUTI， DISALL，RALL）。此后，使用rho域比特率控制（RDBALL）来计算每组宏块内的比特分配。

12. 发明申请

US20090060267A1 SALIENCE ESTIMATION FOR OBJECT-BASED VISUAL ATTENTION MODEL 有权
标题翻译：基于目标的视觉注意模型的估计
公开(公告)号：US20090060267A1
公开(公告)日：2009-03-05
申请号：US12226386
申请日：2007-04-27
申请人： Xiao Dong Gu , Zhi Bo Chen , Qu Qing Chen
发明人： Xiao Dong Gu , Zhi Bo Chen , Qu Qing Chen
IPC分类号： G06K9/00
CPC分类号： G06K9/4671 , G06K9/4628 , G06T7/11
摘要： The present invention provides a salience estimation method for object-based visual attention model. The method comprises steps of segmenting the image into a plurality of objects to be estimated, extracting feature maps for each segmented object, calculating the saliences of each segmented object in a set of circles defined around a centre pixel of the object based on the extracted feature maps, and integrating the saliences of each segmented object in all circles in order to achieve an overall salience estimation for each segmented object. The present invention is much more human vision inosculated and of low computing complexity.
摘要翻译：本发明提供了一种用于基于对象的视觉注意力模型的显着性估计方法。该方法包括以下步骤：将图像分割成要估计的多个对象，提取每个分割对象的特征图，基于所提取的特征来计算围绕对象的中心像素定义的一组圆圈中的每个分割对象的色调映射，以及将所有分段对象的细节整合到所有圆形中，以实现对每个分段对象的整体显着性估计。本发明是更加人性化的视觉和低计算复杂性。

13. 发明授权

US08503520B2 Method and apparatus for encoding a flash picture occurring in a video sequence, and for decoding corresponding data for a flash picture 有权
标题翻译：用于编码在视频序列中发生的闪光图像并用于解码闪光照片的相应数据的方法和装置
公开(公告)号：US08503520B2
公开(公告)日：2013-08-06
申请号：US12310459
申请日：2006-09-01
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04B1/66
CPC分类号： H04N19/103 , H04N19/14 , H04N19/172 , H04N19/46 , H04N19/85
摘要： When video sequences are obtained from e.g. news, interviews, conferences and sports matches, flashlight often appears in the video due to photographing. When encoding the video sequence, the intensity changes a lot so that the motion estimation can not find a well-matching block in a previous picture. Accordingly, the video encoder will encode in intra mode and thereby generate much more bits than for the neighboring non-flash pictures. According to the invention, not the real flash picture is encoded in the video sequence but an artificial non-flash or de-flashed picture, and some indications and parameters are inserted into the bit stream to model the flash effect. The decoder can regenerate the flash picture by reconstructing the non-flash picture and then adding the flash effect. The number of bits required for coding flash pictures is thereby significantly reduced.
摘要翻译：当视频序列从例如新闻，采访，会议和体育比赛，手电筒经常出现在视频中由于拍摄。当对视频序列进行编码时，强度变化很大，使得运动估计在前一图像中找不到匹配良好的块。因此，视频编码器将以帧内模式进行编码，从而生成比相邻的非闪光照片多得多的位。根据本发明，实际的闪光灯图像不是在视频序列中被编码，而是人造非闪光或去闪光的图像，并且一些指示和参数被插入到比特流中以对闪光效果建模。解码器可以通过重建非闪光照片然后添加闪光灯效果来重新生成闪光灯图像。因此，闪存图像编码所需的位数显着减少。

14. 发明授权

US08335252B2 Method and apparatus for encoding groups of pictures of a video sequence, each of said groups including an intra encoded picture and more than two encoded pictures 有权
标题翻译：用于对视频序列的图像组进行编码的方法和装置，每个所述组包括帧内编码图像和多于两个编码图像
公开(公告)号：US08335252B2
公开(公告)日：2012-12-18
申请号：US12733265
申请日：2006-09-07
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04N7/12
CPC分类号： G11B27/005 , H04N19/114 , H04N19/177 , H04N19/587 , H04N19/61 , H04N19/66 , H04N19/895
摘要： In known video coding standards there are basically three types of pictures: I, P and B. Video sequences are usually coded in a group of picture structure wherein several P or B pictures are coded following one I picture. However, this GOP structure has some disadvantages with respect to error resilience and storage medium recording. If a P picture is lost e.g. due to transmission channel error, then the subsequent P pictures can not be reconstructed correctly, and the error will propagate temporally and cause unpleasing artifacts. This GOP structure is designed for forward play only and makes complicated a reverse play operation. According to the invention, a reversible GOP structure is used for the video encoding and decoding. The RGOP structure contains both, a forward encoding chain and a backward encoding chain. Each picture in the RGOP structure is assigned to only one of these chains and the video pictures of adjacent RGOP chains are interleaved.
摘要翻译：在已知的视频编码标准中，基本上有三种类型的图像：I，P和B.视频序列通常以一组图像结构编码，其中多个P或B图像在一个I图像之后被编码。然而，该GOP结构在错误恢复性和存储介质记录方面具有一些缺点。如果P图像丢失，例如由于传输通道错误，则后续P图像无法正确重构，并且错误将在时间上传播并导致不愉快的伪像。该GOP结构仅用于正向播放，并且使得复杂的反向播放操作。根据本发明，可逆GOP结构用于视频编码和解码。 RGOP结构包含前向编码链和后向编码链。 RGOP结构中的每个图像仅分配给这些链中的一个，并且相邻RGOP链的视频图像被交织。

15. 发明授权

US08179981B2 Method and apparatus for determining bit allocation for groups of pixel blocks in a picture according to attention importance level 有权
标题翻译：根据注意重要性水平确定图像中的像素块组的比特分配的方法和装置
公开(公告)号：US08179981B2
公开(公告)日：2012-05-15
申请号：US12224080
申请日：2007-02-16
申请人： Zhi Bo Chen , Xiao Dong Gu , Qu Qing Chen
发明人： Zhi Bo Chen , Xiao Dong Gu , Qu Qing Chen
IPC分类号： H04N7/64
CPC分类号： H04N19/192 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/17 , H04N19/176 , H04N19/19 , H04N19/61
摘要： Optimised bit allocation is important in video compression to increase the coding efficiency, i.e. to make optimum use of the available data rate. In view of the human visual system, a human usually pays more attention to some part of a picture rather than to other parts of that picture. Therefore the bit allocation should be optimised for different-attention picture areas (GOBi). The inventive distortion-driven bit allocation scheme allocates the coding/decoding error distortion to picture areas consistently with the human visual system, and satisfies the constraint of bit rate as well. The invention uses a distortion/bitrate/rhoquantization parameter histogram analysis. Based on corresponding tables (DGOBi[QPn], RGOBi[QPn] and ρGOBi[QPn]), the relationships between quantization parameter, rate, distortion and percentage of non-zero coefficients for the different-attention areas are determined (PREALUTI, DISALL, RALL). Thereafter a rho-domain bit rate control is used (RDBALL) for calculating the bit allocation inside each group of macroblocks.
摘要翻译：优化的比特分配在视频压缩中是重要的，以增加编码效率，即最佳地利用可用的数据速率。鉴于人类视觉系统，人类通常会更多地关注图片的某些部分，而不是照片的其他部分。因此，应该针对不同的注意图像区域（GOBi）优化位分配。本发明的失真驱动比特分配方案将编码/解码误差失真与人类视觉系统一致地分配给图像区域，并且也满足比特率的约束。本发明使用失真/比特率/量化参数直方图分析。基于相应的表（DGOBi [QPn]，RGOBi [QPn]和＆rgr; GOBi [QPn]），确定了不同注意区域的量化参数，速率，失真和非零系数百分比之间的关系（PREALUTI， DISALL，RALL）。此后，使用rho域比特率控制（RDBALL）来计算每组宏块内的比特分配。

16. 发明申请

US20110044386A1 METHOD AND APPARATUS FOR ENCODING GROUPS OF PICTURES OF A VIDEO SEQUENCE, EACH OF SAID GROUPS INCLUDING AN INTRA ENCODED PICTURE AND MORE THAN TWO PREDICTED ENCODED PICTURES 有权
标题翻译：用于编码视频序列图像的方法和装置，每个包含内部编码的图像以及多于两个预测的编号的图像
公开(公告)号：US20110044386A1
公开(公告)日：2011-02-24
申请号：US12733265
申请日：2006-09-07
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04N7/12
CPC分类号： G11B27/005 , H04N19/114 , H04N19/177 , H04N19/587 , H04N19/61 , H04N19/66 , H04N19/895
摘要： In known video coding standards there are basically three types of pictures: I, P and B. Video sequences are usually coded in a group of picture structure wherein several P or B pictures are coded following one I picture. However, this GOP structure has some disadvantages with respect to error resilience and storage medium recording. If a P picture is lost e.g. due to transmission channel error, then the subsequent P pictures can not be reconstructed correctly, and the error will propagate temporally and cause unpleasing artifacts. This GOP structure is designed for forward play only and makes complicated a reverse play operation. According to the invention, a reversible GOP structure is used for the video encoding and decoding. The RGOP structure contains both, a forward encoding chain and a backward encoding chain. Each picture in the RGOP structure is assigned to only one of these chains and the video pictures of adjacent RGOP chains are interleaved.
摘要翻译：在已知的视频编码标准中，基本上有三种类型的图像：I，P和B.视频序列通常以一组图像结构编码，其中多个P或B图像在一个I图像之后被编码。然而，该GOP结构在错误恢复性和存储介质记录方面具有一些缺点。如果P图像丢失，例如由于传输通道错误，则后续P图像无法正确重构，并且错误将在时间上传播并导致不愉快的伪像。该GOP结构仅用于正向播放，并且使得复杂的反向播放操作。根据本发明，可逆GOP结构用于视频编码和解码。 RGOP结构包含前向编码链和后向编码链。 RGOP结构中的每个图像仅分配给这些链中的一个，并且相邻RGOP链的视频图像被交织。

17. 发明申请

US20090175330A1 Method and apparatus for adapting a default encoding of a digital video signal during a scene change period 有权
标题翻译：用于在场景变化期间适应数字视频信号的默认编码的方法和装置
公开(公告)号：US20090175330A1
公开(公告)日：2009-07-09
申请号：US12309336
申请日：2006-07-17
申请人： Zhi Bo Chen , Xiao Dong Gu , Li Hua Zhu , Qu Qing Chen
发明人： Zhi Bo Chen , Xiao Dong Gu , Li Hua Zhu , Qu Qing Chen
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/115 , H04N19/142 , H04N19/152 , H04N19/17 , H04N19/179 , H04N19/61 , H04N19/87
摘要： The frame following a scene cut is usually coded as an I picture. In CBR encoding, the encoder will try to keep the bit rate constant, which will often cause serious picture quality degradation at scene changes. In VBR encoding, more bits will be allocated to the first frame of the new scene and the bit rate will increase significantly for a short time. Therefore subsequent frames must be coded in ‘skipped’ mode, which will often cause jerk artifacts. According to the invention, in each frame belonging to a scene change period, areas are determined that have different human attention levels. In the frames (n−1, n−2, n−3) located prior to the first new scene frame, to the areas having a lower attention level less bits are assigned than in the default encoding, and in the frames (n, n+1, n+2) located at and after the scene cut the thus saved bits are additionally assigned to the areas having a higher attention level.
摘要翻译：场景切割后的帧通常被编码为I图像。在CBR编码中，编码器将尝试保持比特率恒定，这将导致场景变化导致严重的图像质量下降。在VBR编码中，更多位将被分配给新场景的第一帧，并且比特率将在短时间内显着增加。因此，后续帧必须以“跳过”模式进行编码，这通常会引起抖动伪像。根据本发明，在属于场景变化期间的每个帧中，确定具有不同人的注意力水平的区域。在位于第一新场景帧之前的帧（n-1，n-2，n-3）中，对于具有较低注意力级别的区域，比在默认编码中分配较少的位，并且在帧（n， n + 1，n + 2）被分配给具有较高关注度的区域。

18. 发明授权

US08009069B2 Method and device for encoding a bit sequence 有权
标题翻译：用于编码位序列的方法和设备
公开(公告)号：US08009069B2
公开(公告)日：2011-08-30
申请号：US12657246
申请日：2010-01-15
申请人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
发明人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： The invention is related to a method and a device for encoding of a bit sequence. Said method comprises generating, for each run of Ones comprised in the bit sequence, a unary representation of length of the respective run of Ones, generating a first sequence by concatenating the generated unary representations of lengths of runs of Ones, generating, for each run of Zeroes comprised in the bit sequence, a unary representation of the length of the respective run of Zeroes, generating a second sequence by concatenating the generated unary representations of lengths of runs of Zeroes, and bit plane encoding the generated first and second sequence of unary representations. In most cases, overall entropy of bit planes of unary representations of run lengths is smaller than entropy of the bit sequence. Thus, more compact encoding can be achieved.
摘要翻译：本发明涉及一种用于编码比特序列的方法和装置。所述方法包括为包含在比特序列中的每个游程生成Ones的相应运行的长度的一元表示，通过连接Ones的运行长度的所生成的一元表示来生成第一序列，为每个运行生成包括在比特序列中的零的一元表示，相应的零运行的长度的一元表示，通过连接产生的零的运行长度的所生成的一元表示以及生成的第一和第二序列的位平面编码来生成第二序列表示在大多数情况下，游程长度的一元表示的位平面的总熵小于比特序列的熵。因此，可以实现更紧凑的编码。

19. 发明申请

US20110206356A1 METHOD FOR EMBEDDING VIDEO ANNOTATION DATA INTO A CODED VIDEO STREAM AND VIDEO RECORDING DEVICE 有权
标题翻译：将视频通知数据嵌入到编码的视频流和视频记录设备中的方法
公开(公告)号：US20110206356A1
公开(公告)日：2011-08-25
申请号：US12450873
申请日：2007-04-20
申请人： Qu Qing Chen , Zhibo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhibo Chen , Xiao Dong Gu
IPC分类号： H04N5/917 , H04N7/26
CPC分类号： G06F17/30858 , H04N19/00 , H04N19/70 , H04N21/23892 , H04N21/44008 , H04N21/84 , H04N21/8451
摘要： The invention concerns a method for embedding video annotation data into a coded video stream. The method comprises the step of—encapsulating said video annotation data into a unit, so-called video annotation unit, of the coded video data stream which format corresponds to at least one format used for sending the associated video data,—inserting an identifiable synchronizing code enabling the identification of said video annotation unit into the video data stream.
摘要翻译：本发明涉及一种将视频注释数据嵌入到编码视频流中的方法。所述方法包括以下步骤：将所述视频注释数据封装成编码视频数据流的单位即所谓的视频注释单元，该格式对应于用于发送相关视频数据的至少一种格式， - 插入可识别的同步能够将所述视频注释单元识别为视频数据流的代码。

20. 发明申请

US20120288210A1 TEXTURE-PATTERN-ADAPTIVE PARTITIONED BLOCK TRANSFORM 有权
标题翻译：纹理图案自适应分割块变换
公开(公告)号：US20120288210A1
公开(公告)日：2012-11-15
申请号：US13511547
申请日：2009-12-04
申请人： Zhi Bo Chen , Xiao Zhong Xu , Qu Qing Chen
发明人： Zhi Bo Chen , Xiao Zhong Xu , Qu Qing Chen
IPC分类号： G06K9/36
CPC分类号： H04N19/14 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46
摘要： The invention is related to encoding an image block of an image using a partitioned block transform. The inventors recognized that applying a texture-pattern associated invertible mapping to the pixels of a first partition, said first partition resulting from partitioning said image block according to a current texture pattern with which said texture-pattern associated invertible mapping is associated, allows for limiting the maximum number of required first 1-D transforms to not exceeding a number of columns in the image block as well as limiting the maximum number of required second 1-D transforms to not exceeding a number of rows in the image block, also. Achieving limitation of maximum required 1-D transforms enables more efficient implementation on hardware and improves encoding performance but also allows for further partitions according to texture patterns which comprise at least one of multiple strips, texture patterns with highly unsymmetrical pixel distribution and non-directional texture patterns.
摘要翻译：本发明涉及使用分区块变换对图像的图像块进行编码。发明人认识到，将纹理图案相关的可逆映射应用于第一分区的像素，所述第一分区是根据与所述纹理图案相关联的可逆映射相关联的当前纹理图案对所述图像块进行分区而产生的，允许限制所需的第一个1-D的最大数量变换为不超过图像块中的列数，并且将所需的第二个1-D变换的最大数量限制为不超过图像块中的行数。实现最大需要的1-D变换的限制使得能够在硬件上更有效地实现并提高编码性能，并且还允许根据纹理图案进一步分割，其包括多个条带中的至少一个，具有高度不对称像素分布的纹理图案和非定向纹理模式。

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