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1. 发明授权

US08923411B2 Method and system for determining a quality value of a video stream 有权
标题翻译：用于确定视频流的质量值的方法和系统
公开(公告)号：US08923411B2
公开(公告)日：2014-12-30
申请号：US13127285
申请日：2008-11-04
申请人： Jörgen Gustafsson , David Lindegren , Martin Pettersson
发明人： Jörgen Gustafsson , David Lindegren , Martin Pettersson
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/89 , H04N19/154 , H04N17/00 , H04N19/46 , H04N19/159
CPC分类号： H04N19/66 , H04L43/0835 , H04N17/004 , H04N19/154 , H04N19/159 , H04N19/46 , H04N19/521 , H04N19/89
摘要： Identifying lost data packets and at least two intra coded frames of a video stream can be useful in determining the quality value of the video stream. The intra coded frames having maintained image quality can be determined based on estimating whether an intra coded frame is associated with a lost data packet. This allows a distance to be estimated between each one of the lost data packets and a next respective, subsequent intra coded frame having a maintained image quanta. Based on the distances, a quality value for the video stream can be generated.
摘要翻译：识别丢失的数据分组和视频流的至少两个帧内编码帧可用于确定视频流的质量值。可以基于估计帧内编码帧是否与丢失的数据分组相关联来确定保持图像质量的帧内编码帧。这允许在每个丢失的数据分组和具有维持的图像量子的下一个相应的后续帧内编码帧之间估计距离。基于距离，可以产生视频流的质量值。

2. 发明申请

US20110211629A1 Method and System for Determining a Quality Value of a Video Stream 有权
标题翻译：确定视频流质量值的方法和系统
公开(公告)号：US20110211629A1
公开(公告)日：2011-09-01
申请号：US13127285
申请日：2008-11-04
申请人： Jörgen Gustafsson , David Lindegren , Martin Pettersson
发明人： Jörgen Gustafsson , David Lindegren , Martin Pettersson
IPC分类号： H04B17/00
CPC分类号： H04N19/66 , H04L43/0835 , H04N17/004 , H04N19/154 , H04N19/159 , H04N19/46 , H04N19/521 , H04N19/89
摘要： Hence a method is provided for determining a quality value of a video stream, comprising the steps of: identifying lost data packets of the video stream; identifying at least two intra coded frames of the video stream; determining intra coded frames having a maintained image quality, based on estimating if a lost data packet is associated with an intra coded frame; estimating a distance between each one of the lost data packets and a next respective, subsequent intra coded frame having a maintained image quality; and generating the quality value, based on the distances. A system and a computer readable medium are also described.
摘要翻译：因此，提供了一种用于确定视频流的质量值的方法，包括以下步骤：识别视频流的丢失数据分组; 识别视频流的至少两个帧内编码帧; 基于估计丢失的数据分组是否与帧内编码帧相关联，确定具有维持的图像质量的帧内编码帧; 估计每个丢失数据分组之间的距离和具有维持图像质量的下一个相应的后续帧内编码帧; 并根据距离生成质量值。还描述了系统和计算机可读介质。

3. 发明申请

US20100008241A1 Method of Determining Video Quality 有权
标题翻译：确定视频质量的方法
公开(公告)号：US20100008241A1
公开(公告)日：2010-01-14
申请号：US12443712
申请日：2006-10-19
申请人： Jörgen Gustafsson , Gunnar Heikkilä , Martin Pettersson , Xiangchun Tan
发明人： Jörgen Gustafsson , Gunnar Heikkilä , Martin Pettersson , Xiangchun Tan
IPC分类号： H04B7/212
CPC分类号： H04N17/00 , G06T7/0002 , G06T2207/30168 , H04L45/00 , H04N7/24 , H04N17/004 , H04N21/4385 , H04N21/44004 , H04N21/44008
摘要： A method and a device utilizing an algorithm using measurement data derived from parameters related to a video-streaming player and/or parameters related to data transport is disclosed. The data are used as input data in a model designed to generate a value corresponding to the quality of the multimedia sequence, such as for example a MOS score.
摘要翻译：公开了一种使用从与视频流播放器相关的参数导出的测量数据和/或与数据传输有关的参数的方法和设备。数据被用作设计用于产生与多媒体序列的质量相对应的值（例如MOS分数）的模型中的输入数据。

4. 发明授权

US08339976B2 Method of determining video quality 有权
标题翻译：确定视频质量的方法
公开(公告)号：US08339976B2
公开(公告)日：2012-12-25
申请号：US12443712
申请日：2006-10-19
申请人： Jörgen Gustafsson , Xiangchun Tan , Gunnar Heikkilä , Martin Pettersson
发明人： Jörgen Gustafsson , Xiangchun Tan , Gunnar Heikkilä , Martin Pettersson
IPC分类号： G01R31/08 , G01D15/16 , B41J2/38
CPC分类号： H04N17/00 , G06T7/0002 , G06T2207/30168 , H04L45/00 , H04N7/24 , H04N17/004 , H04N21/4385 , H04N21/44004 , H04N21/44008
摘要： A method and a device utilizing an algorithm using measurement data derived from parameters related to a video-streaming player and/or parameters related to data transport is disclosed. The data are used as input data in a model designed to generate a value corresponding to the quality of the multimedia sequence, such as for example a MOS score.
摘要翻译：公开了一种使用从与视频流播放器相关的参数导出的测量数据和/或与数据传输有关的参数的方法和设备。数据被用作设计用于产生与多媒体序列的质量相对应的值（例如MOS分数）的模型中的输入数据。

5. 发明申请

US20100053300A1 Method And Arrangement For Video Telephony Quality Assessment 审中-公开
标题翻译：视频电话质量评估方法与布置
公开(公告)号：US20100053300A1
公开(公告)日：2010-03-04
申请号：US12525626
申请日：2007-02-02
申请人： Torbjörn Einarsson , Jörgen Gustafsson , Gunnar Heikkilä , Martin Pettersson , Xiangchun Tan
发明人： Torbjörn Einarsson , Jörgen Gustafsson , Gunnar Heikkilä , Martin Pettersson , Xiangchun Tan
IPC分类号： H04N7/14 , H04L12/66
CPC分类号： H04M3/2236 , H04L65/80
摘要： In a method of quality assessment for a multimedia signal comprising video telephony media in a video telephony system, the multimedia signal is received SIO, a plurality of parameters of said multimedia signal are extracted S20, and an objective quality measure is determined S30 for the video telephony media based on representations of at least two of the extracted parameters.
摘要翻译：在包括视频电话系统中的视频电话媒体的多媒体信号的质量评估方法中，接收到多媒体信号SIO，提取所述多媒体信号的多个参数，并且为视频确定客观质量度量S30 基于提取的参数中的至少两个的表示的电话媒体。

6. 发明授权

US10349048B2 Scene change detection for perceptual quality evaluation in video sequences 有权
公开(公告)号：US10349048B2
公开(公告)日：2019-07-09
申请号：US14351483
申请日：2011-10-11
申请人： Martin Pettersson , Savvas Argyropoulos , David Lindegren , Peter List
发明人： Martin Pettersson , Savvas Argyropoulos , David Lindegren , Peter List
IPC分类号： H04N17/00 , H04N5/14 , H04N5/93
摘要： There are provided a plurality of methods for detecting a scene change in a streamed video, the streamed video comprising a series of pictures. An example method comprises calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures. The method further comprises identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. There is further provided a method of determining the perceptual impact of a packet loss on a streamed video the method comprising: identifying a packet loss; and determining if the lost packet contained information relating to a picture at the start of a new scene, wherein a new scene is detected using one of the methods disclosed herein.

7. 发明申请

US20140376886A1 SCENE CHANGE DETECTION FOR PERCEPTUAL QUALITY EVALUATION IN VIDEO SEQUENCES 审中-公开
标题翻译：视频序列中认知质量评估的场景变化检测
公开(公告)号：US20140376886A1
公开(公告)日：2014-12-25
申请号：US14351483
申请日：2011-10-11
申请人： Martin Pettersson , Savvas Argyropoulos , David Lindegren , Peter List
发明人： Martin Pettersson , Savvas Argyropoulos , David Lindegren , Peter List
IPC分类号： H04N17/00 , H04N5/93
CPC分类号： H04N17/004 , H04N5/147 , H04N5/93
摘要： There are provided a plurality of methods for detecting a scene change in a streamed video, the streamed video comprising a series of pictures. An example method comprises calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures. The method further comprises identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. There is further provided a method of determining the perceptual impact of a packet loss on a streamed video the method comprising: identifying a packet loss; and determining if the lost packet contained information relating to a picture at the start of a new scene, wherein a new scene is detected using one of the methods disclosed herein.
摘要翻译：提供了用于检测流式视频中的场景变化的多种方法，该流式视频包括一系列图片。对于多个位置，示例性方法包括在连续图像中的相同位置处编码宏块的成本之间的差异。该方法还包括当多个位置的差值之和满足阈值标准时识别新场景。还提供了一种确定分组丢失对流式视频的感知影响的方法，该方法包括：识别分组丢失; 以及确定丢失分组是否包含与新场景开始时的图片相关的信息，其中使用本文公开的方法之一来检测新场景。

8. 发明授权

US09686515B2 Method and apparatus for detecting quality defects in a video bitstream 有权
公开(公告)号：US09686515B2
公开(公告)日：2017-06-20
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： H04N5/94 , H04N9/88 , H04N9/80 , H04N7/64 , H04N17/00 , H04N21/44 , H04N19/89
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.

9. 发明申请

US20110010625A1 Method for Manually Optimizing Jitter, Delay and Synch Levels in Audio-Video Transmission 有权
标题翻译：手机优化音视频传输抖动，延迟和同步电平的方法
公开(公告)号：US20110010625A1
公开(公告)日：2011-01-13
申请号：US12921439
申请日：2008-03-13
申请人： Martin Pettersson , Bo Burman , Mats Folkesson , Valentin Kulyk
发明人： Martin Pettersson , Bo Burman , Mats Folkesson , Valentin Kulyk
IPC分类号： G06F15/16 , G06F3/01
CPC分类号： H04N21/23406 , G06F3/04847 , H04J3/0632 , H04L1/0022 , H04L1/1838 , H04L47/10 , H04L47/12 , H04L47/14 , H04L47/2416 , H04L47/283 , H04L49/90 , H04L65/80 , H04N21/2368 , H04N21/4307 , H04N21/4341 , H04N21/44004 , H04N21/485
摘要： A communication device and method provide selective control of a level of buffering of at least one data stream. The communication device includes a jitter buffer (202), a jitter buffer control unit (204) and a user interface (206). An instruction received via an input to a user interface (206) indicates a jitter buffer strategy (510), such as enabling a jitter buffer or setting a size of a jitter buffer, based on the user input. The control unit (204) sets the buffer strategy based in the instruction, and a data stream transmitted via a packet-switched network is received (530) and buffered for play out based on the buffer strategy (540).
摘要翻译：通信设备和方法提供对至少一个数据流的缓冲级别的选择性控制。通信设备包括抖动缓冲器（202），抖动缓冲器控制单元（204）和用户接口（206）。经由用户接口（206）的输入接收的指令基于用户输入指示抖动缓冲策略（510），例如启用抖动缓冲器或设置抖动缓冲区的大小。控制单元（204）基于指令设置缓冲策略，并且经由分组交换网络发送的数据流被接收（530）并且基于缓冲策略进行缓冲以进行播放（540）。

10. 发明申请

US20050190741A1 Autonomous communication system 审中-公开
标题翻译：自主通信系统
公开(公告)号：US20050190741A1
公开(公告)日：2005-09-01
申请号：US10518906
申请日：2003-06-12
申请人： Martin Pettersson
发明人： Martin Pettersson
IPC分类号： H04L12/28 , H04L12/56 , H04B7/212
CPC分类号： H04W72/0446 , H04W84/18
摘要： The invention relates to communication of data in a time division multiple access system where the data is transmitted wirelessly between station (MS1-MS6; BS1-BS3) in time slots. The time slots are arranged in frames of a repeating frame structure. The stations (MS1-MS6; BS1-BS3) autonomously select time slots for transmission of data according to a self-organizing transmission algorithm, which allows a first station (MS1) to reuse a time slot that is allocated to a second station (MS2-MS6, BS2, BS3). According to the invention an addressed message (MM1Adr) is sent from a first base station (BS1) to a mobile station (MS1). This station transmits am acknowledgement message (AckM1B1) in response to the addressed message (MM1Adr) in order to confirm a safe receipt of the addressed message (MM1Adr). If due to for example a high traffic load, the acknowledgement message (AckM1B1) cannot be received directly by the first base station (BS1), the mobile station (MS1) sends this message (AckM1B1) via a second base station (BS2) to a message handling entity (MHE) in a network (N), which is responsible for the transmission of the addressed message (MM1Adr). The message handling entity (MHE) may either be a separate node in the network (N) or be included in the first station (BS1). Thanks to the proposed solution, unnecessary repeated transmissions of the addressed message (MM1Adr) can be avoided, and consequently valuable wireless bandwidth be saved.
摘要翻译：本发明涉及在时分多址系统中数据的通信，其中数据在时隙中在站（MS 1 -MS 6; BS 1 -BS 3）之间无线地发送。时隙以重复帧结构的帧布置。站（MS 1 -MS 6; BS 1 -BS 3）根据自组织传输算法自主选择用于传输数据的时隙，这允许第一站（MS 1）重用分配给第二站（MS 2 -MS 6，BS 2，BS 3）。根据本发明，从第一基站（BS 1）向移动台（MS 1）发送一个寻址消息（M SUB MAD）。响应于所寻址的消息（M ^{M1 Adr ），该站发送确认消息（Ack ^{M1 B1 以确认所寻址的消息的安全接收（M＆lt; M1＆gt;＆lt; Adr＆gt;）。如果由于例如高业务负载，则确认消息（Ack ^{M1 B1>）不能被第一基站（BS 1）直接接收，移动站 MS 1）经由第二基站（BS 2）向网络（N）中的消息处理实体（MHE）发送该消息（Ack ^{M1 B1 ），其中负责传送寻址的消息（M＆lt; M1＆gt;＆lt; SUB＆gt;＆gt;＆gt;）。消息处理实体（MHE）可以是网络（N）中的单独节点，也可以包括在第一站（BS 1）中。由于所提出的解决方案，可以避免所寻址的消息（M＆lt; M1＆gt;＆gt; Adr＆lt;＆gt;）的不必要的重复发送，因此节省了有价值的无线带宽。}}}}

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