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

US09113149B2 Moving picture coding method and moving picture decoding method 有权
公开(公告)号：US09113149B2
公开(公告)日：2015-08-18
申请号：US14069708
申请日：2013-11-01
申请人： Panasonic Intellectual Property Corporation of America
发明人： Kiyofumi Abe , Shinya Kadono , Satoshi Kondo , Makoto Hagai
IPC分类号： G06T9/00 , H04N7/32 , H04N7/64 , H04N19/593 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/147 , H04N19/172 , H04N19/46 , H04N19/134 , H04N19/61 , H04N19/117 , H04N19/18 , H04N19/42 , H04N19/573 , H04N19/58 , H04N19/577
CPC分类号： H04N19/105 , H04N19/103 , H04N19/117 , H04N19/134 , H04N19/137 , H04N19/139 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/18 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/593 , H04N19/61 , H04N19/70
摘要： According to a picture coding method, a coded picture is stored, as a reference picture, into a storage unit; commands indicating correspondence between reference pictures and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted.

2. 发明授权

US09008192B2 Arrangements for increasing detection confidence 有权
标题翻译：增加检测信心的安排
公开(公告)号：US09008192B2
公开(公告)日：2015-04-14
申请号：US13309960
申请日：2011-12-02
申请人： Geoffrey B. Rhoads , John Stach
发明人： Geoffrey B. Rhoads , John Stach
IPC分类号： H04N7/64 , G06K9/68 , H04N7/22
CPC分类号： G06T1/0021 , G06K9/685 , G06K2009/6871 , G06T2201/0065 , G10L19/018
摘要： In one embodiment, a first set of digital data (e.g., an image) is tested for the presence of a certain feature (e.g., a certain face), yielding one of two outcomes (e.g., not-present, or present). If the testing yields the first outcome, no additional testing is performed. If, however, the testing yields the second outcome, further testing is performed to further check this outcome. Such further testing is performed on a second set of digital data that is based on, but different from, the first set of data. Only if the original testing and the further testing both yield the same second outcome is it treated as a valid result. A variety of other features and arrangements are also detailed.
摘要翻译：在一个实施例中，测试第一组数字数据（例如，图像）以存在某个特征（例如，某个面部），产生两个结果之一（例如，不存在或存在）。如果测试产生了第一个结果，则不进行其他测试。然而，如果测试产生了第二个结果，则进行进一步测试以进一步检查该结果。对第二组数字数据执行这样的进一步测试，该第二组数字数据基于但不同于第一组数据。只有当原始测试和进一步测试都产生相同的第二个结果时，才被视为有效的结果。还详细介绍了各种其他功能和安排。

3. 发明申请

US20150035996A1 METHOD AND APPARATUS FOR EVALUATING MEDIA QUALITY 有权
标题翻译：评估媒体质量的方法和装置
公开(公告)号：US20150035996A1
公开(公告)日：2015-02-05
申请号：US14518164
申请日：2014-10-20
申请人： HUAWEI TECHNOLOGIES CO.,LTD.
发明人： Shan GAO , Lina SUN , Qingpeng XIE
IPC分类号： H04N17/00 , H04N21/234 , H04N7/64 , H04N17/02 , H04N21/44
CPC分类号： H04N17/004 , H04N17/02 , H04N19/89 , H04N21/23418 , H04N21/44008
摘要： In a method for evaluating media quality, media reference quality and rebuffering event distortion quality are obtained, final media quality are determined according to the obtained media reference quality and rebuffering event distortion quality, where a parameter of the rebuffering event distortion quality includes at least one of the following: the number of rebuffering events, a duration of the rebuffering event, a multiple rebuffering event interaction impact parameter, initial media quality, and a factor describing media content complexity. When media quality is calculated, impact of the multiple rebuffering event interaction impact parameter, the initial media quality, and the factor describing media content complexity on the media quality is considered, thereby making a media quality evaluation result more accurate.
摘要翻译：在评估媒体质量的方法中，获得媒体参考质量和回退事件失真质量，根据所获得的媒体参考质量和再生事件失真质量来确定最终媒体质量，其中，回退事件失真质量的参数包括至少一个以下内容：重新绑定事件的数量，重新绑定事件的持续时间，多重缓冲事件交互影响参数，初始媒体质量以及描述媒体内容复杂性的因素。当媒体质量得到计算时，考虑到多重回滚事件交互影响参数的影响，初始媒体质量以及描述媒体内容对媒体质量复杂度的因素，从而使媒体质量评估结果更准确。

4. 发明申请

US20140294362A1 METHOD AND APPARATUS FOR DETECTING QUALITY DEFECTS IN A VIDEO BITSTREAM 有权
标题翻译：用于检测视频比特质量质量缺陷的方法和装置
公开(公告)号：US20140294362A1
公开(公告)日：2014-10-02
申请号：US14363607
申请日：2011-12-09
申请人： Martin Pettersson , Savvas Argyropoulos
发明人： Martin Pettersson , Savvas Argyropoulos
IPC分类号： H04N7/64
CPC分类号： H04N19/85 , H04N17/004 , H04N19/89 , H04N21/44008
摘要： There is provided an apparatus for detecting a quality defect in a video sequence, the apparatus comprising: a receiver arranged to receive a video bitstream representing a video sequence; and a defect module arranged to determine a measure of quantization parameter for each picture of the video sequence, the defect module further arranged to identify a quality defect when an abrupt change in the measure of quantization parameter occurs.
摘要翻译：提供了一种用于检测视频序列中的质量缺陷的装置，该装置包括：接收机，被配置为接收表示视频序列的视频比特流; 以及缺陷模块，被布置为确定所述视频序列的每个图像的量化参数的度量，所述缺陷模块还被布置为当出现量化参数测量的突然变化时识别质量缺陷。

5. 发明申请

US20140016038A1 HEURISTIC METHOD FOR DROP FRAME DETECTION IN DIGITAL BASEBAND VIDEO 审中-公开
标题翻译：数字基带视频中DROP帧检测的湿度法
公开(公告)号：US20140016038A1
公开(公告)日：2014-01-16
申请号：US13903615
申请日：2013-05-28
申请人： Tektronix, Inc.
发明人： Krishna Seshadri Ramaswamy , Malateshgouda V. Karegoudar
IPC分类号： H04N7/64
CPC分类号： H04N19/89 , G06T7/0002 , G06T2207/20021 , G06T2207/30168 , H04N5/147 , H04N17/004
摘要： A video detector for detecting dropped frames in a video according to embodiments of the invention may include a quality measurer structured to generate a quality measure of a transition between a current frame and a previous frame, a dynamic threshold generator structured to generate a threshold value based on a comparison of blocks within the current frame, and an identifier structured to indicate the video as having a dropped frame based on a comparison between the difference value and the threshold value. Methods of performing dropped frame detection in a video stream are also described.
摘要翻译：根据本发明的实施例的用于检测视频中的丢弃帧的视频检测器可以包括质量测量器，其被构造为生成当前帧与先前帧之间的转换的质量测量;动态阈值生成器，被构造成基于阈值生成在当前帧中的块的比较以及基于差值和阈值之间的比较来构造为将视频指示为具有丢弃帧的标识符。还描述了在视频流中执行丢帧检测的方法。

6. 发明授权

US08490207B2 Performing zero-copy sends in a networked file system with cryptographic signing 有权
公开(公告)号：US08490207B2
公开(公告)日：2013-07-16
申请号：US13149788
申请日：2011-05-31
申请人： Jeffrey T. Layton , Neil R. T. Horman , Eric L. Paris , Josef M. Bacik
发明人： Jeffrey T. Layton , Neil R. T. Horman , Eric L. Paris , Josef M. Bacik
IPC分类号： H04N7/64 , G06F17/30
CPC分类号： G06F12/0822 , G06F12/109 , G06F12/145 , G06F21/64 , G06F2212/656
摘要： A method and system for sending data in a file system that uses cryptographic signatures to protect data integrity. A computer system calculates a signature based on the content of a page of a memory. The memory is shared by processes that run on the computer system. The computer system write-protects the page while the page is used for calculation of the signature. When a first process attempts to modify the page, a page fault is triggered. In response to the page fault, the content of the page in memory is copied to a new page in the memory. The new page is accessible by the processes. Access to the page by the first process is redirected to the new page. Subsequent to the page fault, access to the page by the second process is also redirected to the new page.

7. 发明授权

US08355588B2 Moving picture coding method and moving picture decoding method 有权
公开(公告)号：US08355588B2
公开(公告)日：2013-01-15
申请号：US13368708
申请日：2012-02-08
申请人： Kiyofumi Abe , Shinya Kadono , Satoshi Kondo , Makoto Hagai
发明人： Kiyofumi Abe , Shinya Kadono , Satoshi Kondo , Makoto Hagai
IPC分类号： G06T9/00 , H04N7/32 , H04N7/64
CPC分类号： H04N19/105 , H04N19/103 , H04N19/117 , H04N19/134 , H04N19/137 , H04N19/139 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/18 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/593 , H04N19/61 , H04N19/70
摘要： According to a picture coding method, a coded picture is stored, as a reference picture, into a storage unit; commands indicating correspondence between reference pictures and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted.

8. 发明申请

US20120257702A1 ORDER OF DEBLOCKING 审中-公开
标题翻译：解除订单
公开(公告)号：US20120257702A1
公开(公告)日：2012-10-11
申请号：US13083932
申请日：2011-04-11
申请人： Matthias NARROSCHKE , Hisao Sasai
发明人： Matthias NARROSCHKE , Hisao Sasai
IPC分类号： H04N7/64 , H04N7/26
CPC分类号： H04N19/86 , H04N19/172 , H04N19/176
摘要： The present invention relates to block-based video coding, in particular to methods for removing blocking artifacts in reconstructed video images. In conventional block-based video coding, both decoding and deblocking are performed on a block-by-block basis, which results in a plurality of dependencies between the various steps and processes. According to the present invention, deblocking is performed in batch mode after an entire frame has been decoded. Moreover, vertical and horizontal deblocking are separated in the sense that deblocking in the one direction is only performed after deblocking in the other direction is completed for the entire frame. In this manner, the decoding and deblocking processing can be split into a plurality of concurrent processes, which results in a highly efficient implementation both in hardware and in software.
摘要翻译：本发明涉及基于块的视频编码，具体涉及用于去除重构视频图像中的块伪影的方法。在传统的基于块的视频编码中，解码和解块都是逐块执行的，这导致了各种步骤和过程之间的多个依赖关系。根据本发明，在整个帧被解码之后，以分批模式执行解块。此外，垂直和水平去块分离的意思是，仅在整个框架完成在另一个方向上的去块之后在一个方向上去块。以这种方式，解码和解块处理可以被分成多个并发处理，这导致在硬件和软件中的高效率实现。

9. 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。

10. 发明授权

US08150180B2 Moving picture coding method and moving picture decoding method 有权
标题翻译：运动图像编码方法和运动图像解码方法
公开(公告)号：US08150180B2
公开(公告)日：2012-04-03
申请号：US13208677
申请日：2011-08-12
申请人： Kiyofumi Abe , Shinya Kadono , Satoshi Kondo , Makoto Hagai
发明人： Kiyofumi Abe , Shinya Kadono , Satoshi Kondo , Makoto Hagai
IPC分类号： G06T9/00 , H04N7/32 , H04N7/64
CPC分类号： H04N19/105 , H04N19/103 , H04N19/117 , H04N19/134 , H04N19/137 , H04N19/139 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/18 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/593 , H04N19/61 , H04N19/70
摘要： According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated.
摘要翻译：根据本发明的图像编码方法，将由图像号码识别的编码图像作为参考图像存储到存储单元中; 生成用于指定用于生成预测图像的参考图像和系数的图像编号和参考索引之间的对应关系的命令; 通过参考索引来指定对当前要编码的图像中的当前块执行运动补偿时使用的参考图像; 通过使用与参考索引相对应的系数对通过指定参考图片内的运动估计获得的块执行线性预测来生成预测图像; 输出编码图像信号，该编码图像信号包括通过编码作为当前编码图像中的当前块与预测图像之间的差的预测误差获得的编码信号，命令，参考索引和系数。此时，指示最大参考指标值的信息被编码并包括在编码图像信号中，并且生成指示至少一个图像编号和多个参考索引之间的对应关系的命令。

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