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1. 发明授权

US08755438B2 Method and system for selectively performing multiple video transcoding operations 有权
标题翻译：用于选择性地执行多个视频代码转换操作的方法和系统
公开(公告)号：US08755438B2
公开(公告)日：2014-06-17
申请号：US13226332
申请日：2011-09-06
申请人： Hicham Layachi , Stephane Coulombe
发明人： Hicham Layachi , Stephane Coulombe
IPC分类号： H04N7/12 , H04N7/26 , H04N7/50 , H04N5/14
CPC分类号： H04N19/40 , H04N5/145 , H04N19/105 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/61
摘要： Method and system for transcoding a sequence of input images into a sequence of output images that can effectively handle one or more transcoding uses cases are presented. The embodiments of the invention exploit the incoming metadata retrieved from the decoding process to adapt the video content and to achieve a significant speed-up in comparison to the traditional cascaded approach while maintaining high quality for output images.
摘要翻译：提出了将输入图像序列转码成可有效处理一个或多个转码用例的输出图像序列的方法和系统。本发明的实施例利用从解码过程检索的传入元数据，以适应视频内容并且与传统的级联方法相比实现显着的加速，同时保持输出图像的高质量。

2. 发明申请

US20120134417A1 METHOD AND SYSTEM FOR SELECTIVELY PERFORMING MULTIPLE VIDEO TRANSCODING OPERATIONS 有权
标题翻译：用于选择性地执行多个视频平移操作的方法和系统
公开(公告)号：US20120134417A1
公开(公告)日：2012-05-31
申请号：US13226332
申请日：2011-09-06
申请人： Hicham Layachi , Stephane Coulombe
发明人： Hicham Layachi , Stephane Coulombe
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N5/145 , H04N19/105 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/61
摘要： Method and system for transcoding a sequence of input images into a sequence of output images that can effectively handle one or more transcoding uses cases are presented. The embodiments of the invention exploit the incoming metadata retrieved from the decoding process to adapt the video content and to achieve a significant speed-up in comparison to the traditional cascaded approach while maintaining high quality for output images.
摘要翻译：提出了将输入图像序列转码成可有效处理一个或多个转码用例的输出图像序列的方法和系统。本发明的实施例利用从解码过程检索的传入元数据，以适应视频内容并且与传统的级联方法相比实现显着的加速，同时保持输出图像的高质量。

3. 发明授权

US08886824B2 Media adaptation determination for wireless terminals 有权
标题翻译：无线终端的媒体自适应确定
公开(公告)号：US08886824B2
公开(公告)日：2014-11-11
申请号：US10765576
申请日：2004-01-26
申请人： Stephane Coulombe , Umesh Chandra
发明人： Stephane Coulombe , Umesh Chandra
IPC分类号： G06F15/16 , H04W4/18 , H04W88/18 , H04L12/58
CPC分类号： H04L51/10 , H04L51/04 , H04L51/066 , H04L51/38 , H04W4/18 , H04W88/184
摘要： A method (and corresponding equipment) by which a multimedia message is sent from a sending terminal (21) via a messaging server (22)—such as a MMS Proxy-Relay in MMS or a SIP proxy server in SIP IM—to a receiving terminal (25) having limited multimedia capabilities, with the sending terminal (21) adapted to include a user agent (21a) for inserting, into the message, media characteristics of the message sufficient in detail to enable the messaging server (22) to determine whether the message should be transcoded based on actual or assumed multimedia capabilities of the receiving terminal (25), and with the messaging server (22) configured to read the media characteristics and decide whether the message should be transcoded based only on the inserted media characteristics and on actual or assumed multimedia capabilities of the receiving terminal (25). The media characteristics are advantageously inserted into the header of the message.
摘要翻译：一种通过消息传送服务器（22）从发送终端（21）发送多媒体消息的方法（以及对应的设备），例如MMS中的MMS代理中继或SIP IM中的SIP代理服务器到接收终端（25）具有有限的多媒体能力，发送终端（21）适于包括用户代理（21a），用于向消息中插入足够详细信息的消息的媒体特性，以使消息服务器（22）能够确定是否应该基于接收终端（25）的实际或假定的多媒体能力对消息进行代码转换，并且消息传送服务器（22）被配置为读取媒体特性并且基于插入的媒体特性来确定消息是否应该被转码以及接收终端（25）的实际或假定的多媒体能力。媒体特性有利地插入消息的标题中。

4. 发明申请

US20110033119A1 METHOD AND SYSTEM FOR DETERMINING A QUALITY MEASURE FOR AN IMAGE USING A VARIABLE NUMBER OF MULTI-LEVEL DECOMPOSITIONS 有权
标题翻译：使用多级分解的变量确定图像质量测量的方法和系统
公开(公告)号：US20110033119A1
公开(公告)日：2011-02-10
申请号：US12906111
申请日：2010-10-17
申请人： Soroosh Rezazadeh , Stephane Coulombe
发明人： Soroosh Rezazadeh , Stephane Coulombe
IPC分类号： G06K9/48
CPC分类号： G06K9/4604 , G06T7/0004 , G06T2207/20016 , G06T2207/20064 , G06T2207/30168
摘要： Method and system for determining a measure of quality for images are presented. Multi-level decomposition of images in the wavelet domain using a variable number of levels of decomposition and aggregation of selected subbands is performed to obtain an accurate measure of quality. The processing time is reduced in comparison to that required by other methods for generating measures of quality.
摘要翻译：提出了确定图像质量度量的方法和系统。执行小波域中图像的多级分解，使用可选数量的所选子带的分解和聚合级别，以获得准确的质量度量。与用于产生质量测量的其他方法所需的处理时间相比，处理时间减少。

5. 发明授权

US06738534B2 Apparatus, and associated method, for altering the resolution of a digital image 失效
标题翻译：装置和相关方法，用于改变数字图像的分辨率
公开(公告)号：US06738534B2
公开(公告)日：2004-05-18
申请号：US10066501
申请日：2002-01-31
申请人： Justin Ridge , Stephane Coulombe
发明人： Justin Ridge , Stephane Coulombe
IPC分类号： G06K932
CPC分类号： G06T3/4084 , G06T3/40
摘要： Apparatus, and an associated method, for reducing the resolution of a digital image, such as a JPEG image. The digital image is pre-scaled by a pre-scaling factor that is selected such that a matrix multiplication is performed upon the digital image once pre-scaled, to reduce the resolution of the image. The matrix multiplication utilizes a multiplier that exhibits symmetry, thereby to reduce the number of calculations required to reduce the resolution of the image. Resolution reduction is performed, for instance, prior to communicating the digital image to a mobile station operable in a mobile communication system.
摘要翻译：用于降低诸如JPEG图像的数字图像的分辨率的装置和相关联的方法。数字图像通过预定尺寸因子进行预缩放，所述预缩放因子被选择为使得一旦预缩放就对数字图像执行矩阵乘法，以降低图像的分辨率。矩阵乘法利用显示对称性的乘法器，从而减少降低图像分辨率所需的计算次数。例如，在将数字图像传送到在移动通信系统中可操作的移动台之前执行分辨率降低。

6. 发明授权

US09247264B2 Method and system for parallel encoding of a video 有权
标题翻译：视频并行编码的方法和系统
公开(公告)号：US09247264B2
公开(公告)日：2016-01-26
申请号：US13309298
申请日：2011-12-01
申请人： Jean-Francois Franche , Stephane Coulombe
发明人： Jean-Francois Franche , Stephane Coulombe
IPC分类号： H04N7/26 , H04N19/436 , H04N19/52 , H04N19/172 , H04N19/61 , H04N19/174 , H04N19/43
CPC分类号： H04N19/436 , H04N19/172 , H04N19/174 , H04N19/43 , H04N19/52 , H04N19/61
摘要： A method and system for parallel encoding of frames in a video are described, exploiting parallel processing at both frame and slice levels. One or more slices are processed in a preceding frame by one or more cores in a multi-core processor, and a slice is processed in a succeeding frame provided at least one of said one or more cores in the multi-core processor is available for processing; and the processing of a slice from said one or more slices at same physical location in the preceding input frame has been completed, the processing of frames and slices in the preceding and succeeding frames being performed at least partially in parallel. A significant speedup in comparison to the sequential encoding approach is achieved while maintaining high visual quality for the output video. A corresponding system for parallel encoding of a video is also provided.
摘要翻译：描述了用于视频中的帧的并行编码的方法和系统，利用帧和分片级的并行处理。在多核处理器中的一个或多个核在前一帧中处理一个或多个片，并且在随后的帧中处理片，所述多核处理器中的所述一个或多个核中的至少一个可用于加工; 并且已经完成了来自前一输入帧中相同物理位置处的所述一个或多个片的切片的处理，所述前一帧和后续帧中的帧和片段的处理至少部分地并行执行。与连续编码方法相比，实现了对输出视频的高视觉质量的显着加速。还提供了用于并行编码视频的对应系统。

7. 发明授权

US07016543B2 Method for providing a terminal with coded still image signals, communications system, network element and module 有权
标题翻译：为终端提供编码静止图像信号，通信系统，网元和模块的方法
公开(公告)号：US07016543B2
公开(公告)日：2006-03-21
申请号：US10151532
申请日：2002-05-20
申请人： Roberto Castagno , Stephane Coulombe
发明人： Roberto Castagno , Stephane Coulombe
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/40 , H04N1/00283 , H04N2201/0067
摘要： The invention relates to a method for providing a terminal MS2 of a communications system with coded still image signals. In order to enable a further content adaptation for multimedia messages, it is proposed that the method comprises receiving coded video signals at a network element of said communications system, converting at least a part of said received coded video signals in said network element to coded still image signals, and delivering said coded still image signals to a terminal MS2 of said communication system. The computation required for said conversion can be minimized by exploiting the commonalities of video and still images compression methods that are based on the Discrete Cosine Transform scheme. Thus it is rendered possible to provide excerpts of transmitted video clips also to terminals not capable of handling at least this particular video clip. The invention equally relates to a corresponding communications system, network element and module for a network element.
摘要翻译：本发明涉及用于向通信系统的终端MS 2提供编码的静止图像信号的方法。为了能够对多媒体消息进行进一步的内容适配，提出了该方法包括在所述通信系统的网络元件处接收编码视频信号，将所述网络元件中的所接收的编码视频信号的至少一部分转换成编码静止图像信号，并将所述编码的静止图像信号传送到所述通信系统的终端MS 2。通过利用基于离散余弦变换方案的视频和静止图像压缩方法的共同性，可以最小化所述转换所需的计算。因此，可以将传输的视频剪辑的摘录也提供给不能处理至少该特定视频剪辑的终端。本发明同样涉及相应的通信系统，用于网络元件的网络元件和模块。

8. 发明授权

US10609405B2 Optimal signal encoding based on experimental data 有权
公开(公告)号：US10609405B2
公开(公告)日：2020-03-31
申请号：US15601755
申请日：2017-05-22
申请人： Stephane Coulombe , Didier Joset , Maged E. Beshai
发明人： Stephane Coulombe , Didier Joset , Maged E. Beshai
IPC分类号： H04N11/02 , H04N19/46 , H04N19/136 , H04N19/132 , H04L29/06 , H04N19/40 , H04N19/124
摘要： A method and apparatus for optimal signal encoding based on reference data relating encoded-signal characteristics to encoding parameters are disclosed. Reference vectors of encoding parameters and corresponding measurements of encoded-signal characteristics are used to establish a functional relationship between each characteristic and the encoding parameters. Candidate vectors of encoding parameters are identified based on user-defined boundaries of both the encoding parameters and acceptable encoded-signal characteristics. A figure of merit is determined for each candidate vector and the candidate vector of highest figure of merit is presented to an encoder.

9. 发明授权

US08983206B2 Method and system for increasing robustness of visual quality metrics using spatial shifting 有权
标题翻译：使用空间变换增加视觉质量度量的鲁棒性的方法和系统
公开(公告)号：US08983206B2
公开(公告)日：2015-03-17
申请号：US13463733
申请日：2012-05-03
申请人： Stephane Coulombe , Soroosh Rezazadeh
发明人： Stephane Coulombe , Soroosh Rezazadeh
IPC分类号： G06K9/62 , G06K9/64 , G06K9/68 , G06K9/46 , G06K9/32 , G06K9/36 , G06T7/00 , H04N19/85
CPC分类号： G06T7/0002 , G06T2207/20064 , G06T2207/30168 , H04N19/85
摘要： A visual quality assessment method and system are based on deriving a quality metric by comparing sub-band approximations of a distorted image and an undistorted version of the same image, providing a good compromise between computational complexity and accuracy. The sub-band approximations are derived from Discrete Wavelet (Haar) transforms of small image blocks of each image. Due to inherent symmetries, the wavelet transform is “blind” to certain types of distortions. But the accuracy of the method is enhanced, and the blindness of the transform is overcome, by computing quality metrics for the distorted image as well as computing quality metrics for a shifted version of the distorted image and combining the results.
摘要翻译：视觉质量评估方法和系统基于通过比较失真图像的子带近似和相同图像的未失真版本来导出质量度量，从而在计算复杂性和精度之间提供了良好的折中。子带近似来自每个图像的小图像块的离散小波（Haar）变换。由于固有的对称性，小波变换对于某些类型的失真是“盲”的。但是，通过计算失真图像的质量度量以及计算失真图像的偏移版本的质量度量并结合结果，可以提高方法的准确性，并克服变换的盲目性。

10. 发明授权

US08515182B2 Method and system for determining a quality measure for an image using multi-level decomposition of images 有权
标题翻译：用于使用图像的多级分解确定图像的质量测量的方法和系统
公开(公告)号：US08515182B2
公开(公告)日：2013-08-20
申请号：US12906112
申请日：2010-10-17
申请人： Soroosh Rezazadeh , Stephane Coulombe
发明人： Soroosh Rezazadeh , Stephane Coulombe
IPC分类号： G06K9/48
CPC分类号： G06K9/6201 , G06T7/0002 , G06T2207/20064 , G06T2207/30168
摘要： Method and system for determining a measure of quality for images by using multi-level decomposition are presented. Multi-level decomposition of images is performed in the wavelet domain producing subbands at each level of decomposition. Aggregation of subbands is performed across multiple levels to produce an accurate measure of image quality. By aggregating only selected subbands the computational complexity of the method is greatly reduced.
摘要翻译：提出了通过使用多级分解确定图像质量度量的方法和系统。在小波域中执行图像的多级分解，在每个分解级别产生子带。在多个级别上执行子带的聚合，以产生图像质量的准确度量。通过聚合所选择的子带，该方法的计算复杂度大大降低。

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