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1. 发明申请

WO2010006128A3 VIDEO STREAMING USING MULTIPLE CHANNELS 审中-公开
公开(公告)号：WO2010006128A3
公开(公告)日：2010-01-14
申请号：PCT/US2009/050053
申请日：2009-07-09
申请人： APPLE INC. , HRISTODORESCU, Ionut , ABUAN, Joe , NORMILE, James , WU, Hsi-Jung
发明人： HRISTODORESCU, Ionut , ABUAN, Joe , NORMILE, James , WU, Hsi-Jung
IPC分类号： H04N7/24
摘要： Systems and methods for streaming video over multiple HTTP channels are provided. The client may have control over the channels, allowing the client to control the amount and source of data received. Data requested by the client may be separated into a set of layers, with each layer being assigned to a separate channel. The client may adjust the number of layers requested based on a variety of factors. Layers may be requested from multiple remote sources, providing the client with additional control over the specific bandwidth profile of received data.

2. 发明申请

WO2008049052A2 SCALABLE VIDEO CODING WITH FILTERING OF LOWER LAYERS 审中-公开
标题翻译：可扩展视频编码与下层滤波
公开(公告)号：WO2008049052A2
公开(公告)日：2008-04-24
申请号：PCT/US2007/081758
申请日：2007-10-18
申请人： APPLE INC. , HASKELL, Barin Geoffry , WU, Hsi-jung , SHI, Xiaojin
发明人： WU, Hsi-jung , SHI, Xiaojin
IPC分类号： H04N7/36 , H04N7/26
CPC分类号： H04N19/59 , H04N19/44 , H04N19/51 , H04N19/80
摘要： A first improvement is described for prediction of motion vectors to be used in prediction of video data for enhancement layer data. Arbitrary pixelblock partitioning between base layer data and enhancement layer data raises problems to identify base layer motion vectors to be used as prediction sources for enhancement layer motion vectors. The disclosed method develops enhancement layer motion vectors by scaling a base layer pixelblock partition map according to a size difference between the base layer video image and the enhancement layer video image, then identified scale base layer pixelblocks that are co-located with the enhancement layer pixelblocks for which motion vector prediction is to be performed. Motion vectors from the scaled co-located base layer pixelblocks are averaged, weighted according to a degree of overlap between the base layer pixelblocks and the enhancement layer pixelblock. Another improvement is obtained by filtering recovered base layer image data before being provided to an enhancement layer decoder. When a specified filter requires image data outside a prediction region available from a base layer decoder, the prediction region data may be supplemented with previously-decoded data from an enhancement layer at a border of the prediction region.
摘要翻译：描述了用于预测用于增强层数据的视频数据的预测中的运动矢量的第一改进。基层数据和增强层数据之间的任意像素块划分提出了一些问题，用于识别要用作增强层运动矢量的预测源的基本层运动矢量。所公开的方法通过根据基本层视频图像和增强层视频图像之间的尺寸差来缩放基本层像素块分割图来开发增强层运动矢量，然后识别与增强层像素块共同定位的比例基底层像素块进行运动矢量预测。根据基层像素块和增强层像素块之间的重叠程度对来自缩放的同位置的基本层像素块的运动矢量进行平均化。通过在提供给增强层解码器之前对恢复的基层图像数据进行滤波来获得另一改进。当指定的滤波器需要从基本层解码器可用的预测区域之外的图像数据时，可以从预测区域的边界处的增强层补充预先解码的数据。

3. 发明申请

WO2004008763A1 ADAPTIVELY POST FILTERING ENCODED VIDEO 审中-公开
标题翻译：自适应过滤编码视频
公开(公告)号：WO2004008763A1
公开(公告)日：2004-01-22
申请号：PCT/US2003/022066
申请日：2003-07-14
申请人： APPLE COMPUTER, INC. , PUN, Thomas , HANDLEY, Maynard , KUMAR, Roger , NIE, Xiaochun , WU, Hsi-Jung
发明人： PUN, Thomas , HANDLEY, Maynard , KUMAR, Roger , NIE, Xiaochun , WU, Hsi-Jung
IPC分类号： H04N7/12
CPC分类号： G06T5/002 , G06T2207/10016 , H04N19/117 , H04N19/127 , H04N19/156 , H04N19/527 , H04N19/86
摘要： Some embodiments of the invention provide a method of decoding an encoded video signal that includes a plurality of successive encoded images. The method initially receives an encoded image of the video signal (Fig. 4 “Start”). It then decodes the encoded image (405). The method next examines the decoded image to determine whether the decoded image satisfies at least one criterion for performing a post-filter operation on the decoded image (410). Only if the decoded image satisfies the criterion, the method performs the post-filter operation on the decoded image (415). The criterion in some embodiments is whether the amount of time for applying the post-filter operation exceeds the remaining amount of time that the method has to process the received image.
摘要翻译：本发明的一些实施例提供了一种对包括多个连续编码图像的编码视频信号进行解码的方法。该方法最初接收视频信号的编码图像（图4“开始”）。然后对编码图像进行解码（405）。该方法接下来检查解码图像以确定解码图像是否满足用于对解码图像执行后置滤波操作的至少一个准则（410）。只有解码图像满足标准，该方法对解码图像执行后置滤波操作（415）。一些实施例中的标准是用于应用后置滤波器操作的时间量是否超过该方法必须处理接收到的图像的剩余时间量。

4. 发明申请

WO2019152283A1 TECHNIQUES OF MULTI-HYPOTHESIS MOTION COMPENSATION 审中-公开
公开(公告)号：WO2019152283A1
公开(公告)日：2019-08-08
申请号：PCT/US2019/015247
申请日：2019-01-25
申请人： APPLE INC. , TOURAPIS, Alexandros, Michael , SU, Yeping , SINGER, David , WU, Hsi-Jung
发明人： TOURAPIS, Alexandros, Michael , SU, Yeping , SINGER, David , WU, Hsi-Jung
IPC分类号： H04N19/109 , H04N19/176 , H04N19/147 , H04N19/567
CPC分类号： H04N19/159 , H04N19/109 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/567 , H04N19/70
摘要： The present disclosure describes techniques for coding and decoding video in which a plurality of coding hypotheses are developed for an input pixel block of frame content. Each coding hypothesis may include generation of prediction data for the input pixel block according to a respective prediction search. The input pixel block may be coded with reference to a prediction block formed from prediction data derived according to plurality of hypotheses. Data of the coded pixel block may be transmitted to a decoder along with data identifying a number of the hypotheses used during the coding to a channel. At a decoder, an inverse process may be performed, which may include generation of a counterpart prediction block from prediction data derived according to the hypothesis identified with the coded pixel block data, then decoding of the coded pixel block according to the prediction data.

5. 发明申请

WO2013006469A1 FRAME ENCODING SELECTION BASED ON FRAME SIMILARITIES AND VISUAL QUALITY AND INTERESTS 审中-公开
标题翻译：基于框架相似性和视觉质量和兴趣的框架编码选择
公开(公告)号：WO2013006469A1
公开(公告)日：2013-01-10
申请号：PCT/US2012/045032
申请日：2012-06-29
申请人： APPLE INC. , PRICE, Douglas, Scott , ZHOU, Xiaosong , WU, Hsi-Jung
发明人： PRICE, Douglas, Scott , ZHOU, Xiaosong , WU, Hsi-Jung
IPC分类号： H04N7/26
CPC分类号： H04N19/154 , H04N19/105 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/172
摘要： A system an method for determining to select frames from a video sequence that have high visual appeal and can be coded at high quality when frame rates of coded video drop to such low levels that perceptual sensations of moving video are lost. A metric is derived from a candidate input frame, and such metric is used to determine whether to increase or decrease a weight accorded to the candidate input frame. In an embodiment, the metric may be the auto-exposure data associated with the candidate input frame.
摘要翻译：一种用于确定从具有高视觉吸引力的视频序列中选择帧的方法，并且当编码视频的帧速率下降到移动视频的感知感觉丢失的低级别时，可以以高质量编码的方法。从候选输入帧导出度量，并且使用这种度量来确定是否增加或减少符合候选输入帧的权重。在一个实施例中，度量可以是与候选输入帧相关联的自动曝光数据。

6. 发明申请

WO2013006455A1 ADAPTIVE CONFIGURATION OF REFERENCE FRAME BUFFER BASED ON CAMERA AND BACKGROUND MOTION 审中-公开
标题翻译：基于相机和背景运动的参考框架缓冲器的自适应配置
公开(公告)号：WO2013006455A1
公开(公告)日：2013-01-10
申请号：PCT/US2012/044994
申请日：2012-06-29
申请人： APPLE INC. , ZHOU, Xiaosong , WU, Hsi-jung , LIN, Yao-chung
发明人： ZHOU, Xiaosong , WU, Hsi-jung , LIN, Yao-chung
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/58 , H04N19/105 , H04N19/109 , H04N19/139 , H04N19/172 , H04N19/197 , H04N19/46 , H04N19/61
摘要： In a video coding/decoding system, reference picture caches in a video coder and decoder may be partitioned dynamically based on camera and background motion can lead to improved coding efficiency and coding quality. When a camera is fixed and therefore exhibits low motion, a system may allocate larger portions of the reference picture cache to storage of long term reference frames. In this case, foreground elements of an image (for example, a person) may move in front of a relatively fixed background. Increasing the number of long term reference frames can increase the chances that, no matter where the foreground elements are within a frame currently being coded, the reference picture cache will contain at least one frame that provides an adequate prediction match to background elements within the new frame. Thus the background elements uncovered in the current frame can be coded at high quality with a low number of bits. When a camera exhibits high motion, the system may allocate larger portions of the reference picture cache to storage of short term reference frames.
摘要翻译：在视频编码/解码系统中，视频编码器和解码器中的参考图像高速缓存可以基于相机进行动态分割，并且背景运动可以提高编码效率和编码质量。当照相机固定并因此表现出低运动时，系统可以将较大部分的参考图像高速缓存分配给长期参考帧的存储。在这种情况下，图像的前景元素（例如，人）可以在相对固定的背景之前移动。增加长期参考帧的数量可以增加机会，无论前景元素在当前正被编码的帧内的何处，参考图像高速缓存将包含至少一个帧，其提供与新的背景元素内的足够的预测匹配帧。因此，当前帧中未覆盖的背景元素可以以低位数的高质量被编码。当相机呈现高运动时，系统可以将较大部分的参考图像高速缓存分配给短期参考帧的存储。

7. 发明申请

WO2011126511A4 ESTABLISHING A VIDEO CONFERENCE DURING A PHONE CALL 审中-公开
标题翻译：在电话呼叫期间建立视频会议
公开(公告)号：WO2011126511A4
公开(公告)日：2011-12-08
申请号：PCT/US2010050311
申请日：2010-09-24
申请人： APPLE INC , CRANFILL ELIZABETH C , LEMAY STEPHEN O , ABUAN JOE S , WU HSI-JUNG , ZHOU XIAOSONG , GARCIA ROBERTO JR , JEONG HYEONKUK , GUO HAITAO , PRICE DOUGLAS , ZHANG DAZHONG , TUNG BERKAT S , NORMILE JAMES O , YANG YAN , ELDRED DAVID A , YANOWITZ ANDREW , CHEN TING , KUO DAVID D
发明人： CRANFILL ELIZABETH C , LEMAY STEPHEN O , ABUAN JOE S , WU HSI-JUNG , ZHOU XIAOSONG , GARCIA ROBERTO JR , JEONG HYEONKUK , GUO HAITAO , PRICE DOUGLAS , ZHANG DAZHONG , TUNG BERKAT S , NORMILE JAMES O , YANG YAN , ELDRED DAVID A , YANOWITZ ANDREW , CHEN TING , KUO DAVID D
IPC分类号： H04N7/14 , H04N7/15
CPC分类号： H04N7/141 , G06F3/04842 , G09G5/14 , H04N5/2258 , H04N5/2624 , H04N5/272 , H04N7/147 , H04N7/15
摘要： Some embodiments provide a method for initiating a video conference using a first mobile device. The method presents, during an audio call through a wireless communication network with a second device, a selectable user-interface (UI) item on the first mobile device for switching from the audio call to the video conference. The method receives a selection of the selectable UI item. The method initiates the video conference without terminating the audio call. The method terminates the audio call before allowing the first and second devices to present audio and video data exchanged through the video conference.
摘要翻译：一些实施例提供了使用第一移动设备发起视频会议的方法。该方法在通过具有第二设备的无线通信网络的音频呼叫期间呈现在第一移动设备上的用于从音频呼叫切换到视频会议的可选择的用户界面（UI）项目。该方法接收可选UI项目的选择。该方法启动视频会议而不终止音频通话。该方法在允许第一和第二设备呈现通过视频会议交换的音频和视频数据之前终止音频呼叫。

8. 发明申请

WO2009149151A2 METHOD AND SYSTEM FOR VIDEO CODER AND DECODER JOINT OPTIMIZATION 审中-公开
标题翻译：视频编码器和解码器联合优化的方法和系统
公开(公告)号：WO2009149151A2
公开(公告)日：2009-12-10
申请号：PCT/US2009/046079
申请日：2009-06-03
申请人： APPLE INC. , SHI, Xiaojin , WU, Hsi-jung
发明人： SHI, Xiaojin , WU, Hsi-jung
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/103 , H04N19/127 , H04N19/154 , H04N19/156 , H04N19/164 , H04N19/174 , H04N19/176 , H04N19/196 , H04N19/436 , H04N19/46 , H04N19/463 , H04N19/61
摘要： Embodiments of the present invention provide apparatuses and methods of coding video. The apparatuses and methods may further provide coding a source video sequence according to a block-based coding process, estimating processing capabilities of a target decoder, determining if the estimated processing capabilities are sufficient to perform deblocking filtering. If not sufficient, the apparatuses and methods may provide computing deblocking filter strengths for pixel blocks of the source video sequence to be used at decoding, and transmitting the deblocking filter strengths in a coded video data signal with the coded video data. Moreover, if not sufficient, the apparatuses and methods may provide changing coding parameters including, but not limited to, block sizes, transform sizes, and Qmatrix.
摘要翻译：本发明的实施例提供了对视频进行编码的装置和方法。装置和方法可以进一步提供根据基于块的编码处理对源视频序列进行编码，估计目标解码器的处理能力，确定所估计的处理能力是否足以执行去块滤波。如果不足够，则设备和方法可以为解码时要使用的源视频序列的像素块提供计算解块滤波器强度，并将编码的视频数据信号中的解块滤波器强度传送到编码的视频数据。此外，如果不足够，则设备和方法可以提供改变的编码参数，包括但不限于块大小，变换大小和Qmatrix。

9. 发明申请

WO2008049052A3 SCALABLE VIDEO CODING WITH FILTERING OF LOWER LAYERS 审中-公开
标题翻译：带有滤波器的可扩展视频编码
公开(公告)号：WO2008049052A3
公开(公告)日：2008-06-26
申请号：PCT/US2007081758
申请日：2007-10-18
申请人： APPLE INC , HASKELL BARIN GEOFFRY , WU HSI-JUNG , SHI XIAOJIN
发明人： WU HSI-JUNG , SHI XIAOJIN
IPC分类号： H04N7/26
CPC分类号： H04N19/59 , H04N19/44 , H04N19/51 , H04N19/80
摘要： A first improvement is described for prediction of motion vectors to be used in prediction of video data for enhancement layer data. Arbitrary pixelblock partitioning between base layer data and enhancement layer data raises problems to identify base layer motion vectors to be used as prediction sources for enhancement layer motion vectors. The disclosed method develops enhancement layer motion vectors by scaling a base layer pixelblock partition map according to a size difference between the base layer video image and the enhancement layer video image, then identified scale base layer pixelblocks that are co-located with the enhancement layer pixelblocks for which motion vector prediction is to be performed. Motion vectors from the scaled co-located base layer pixelblocks are averaged, weighted according to a degree of overlap between the base layer pixelblocks and the enhancement layer pixelblock. Another improvement is obtained by filtering recovered base layer image data before being provided to an enhancement layer decoder. When a specified filter requires image data outside a prediction region available from a base layer decoder, the prediction region data may be supplemented with previously-decoded data from an enhancement layer at a border of the prediction region.
摘要翻译：描述了用于预测要用于预测增强层数据的视频数据的运动矢量的第一个改进。基本层数据与增强层数据之间的任意像素块划分引起了问题，以识别要用作增强层运动向量的预测源的基本层运动向量。所公开的方法通过根据基础层视频图像和增强层视频图像之间的大小差异来缩放基础层像素块分割图来开发增强层运动向量，然后识别与增强层像素块共同定位的缩放基础层像素块针对哪个运动矢量预测将被执行。根据基础层像素块与增强层像素块之间的重叠程度对来自缩放后的共同定位基础层像素块的运动向量进行平均，加权。通过在提供给增强层解码器之前过滤恢复的基本层图像数据来获得另一改进。当指定过滤器需要可从基础层解码器获得的预测区域之外的图像数据时，预测区域数据可补充来自预测区域边界处的增强层的先前解码的数据。

10. 发明申请

WO2006004605B1 MULTI-PASS VIDEO ENCODING 审中-公开
标题翻译：多通道视频编码
公开(公告)号：WO2006004605B1
公开(公告)日：2006-07-13
申请号：PCT/US2005022616
申请日：2005-06-24
申请人： APPLE COMPUTER , TONG XIN , WU HSI-JUNG , PUN THOMAS , DUMITRA ADRIANA , HASKEL BARIN , NORMILE JIM
发明人： TONG XIN , WU HSI-JUNG , PUN THOMAS , DUMITRA ADRIANA , HASKEL BARIN , NORMILE JIM
IPC分类号： H04N7/12
CPC分类号： H04N19/126 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/15 , H04N19/152 , H04N19/154 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/192
摘要： Some embodiments of the invention provide a multi-pass encoding method that encodes several images (e.g., several frames of a video sequence). The method iteratively performs an encoding operation that encodes these images (Figure 1, 110). The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images (132). During several different iterations of the encoding operation, the method uses several different nominal quantization parameters (125). The method stops its iterations (140) when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).
摘要翻译：本发明的一些实施例提供了对多个图像（例如，视频序列的几个帧）进行编码的多遍编码方法。该方法迭代地执行编码这些图像的编码操作（图1,110）。编码操作基于标称量化参数，该方法用于计算图像的量化参数（132）。在编码操作的几个不同迭代期间，该方法使用几个不同的标称量化参数（125）。该方法在达到终止标准（例如，其识别图像的可接受编码）时停止其迭代（140）。

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