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1. 发明申请

WO2008092076A2 HYBRID SCALABLE CODING 审中-公开
标题翻译：混合可扩展编码
公开(公告)号：WO2008092076A2
公开(公告)日：2008-07-31
申请号：PCT/US2008/052044
申请日：2008-01-25
申请人： APPLE INC. , SHI, Xiaojin , WU, Hsi-Jung , NORMILE, Jim
发明人： SHI, Xiaojin , WU, Hsi-Jung , NORMILE, Jim
IPC分类号： H04N7/26
CPC分类号： H04N21/23439 , H04N19/156 , H04N19/30 , H04N19/40 , H04N19/46 , H04N21/234327 , H04N21/235 , H04N21/2662 , H04N21/435 , H04N21/84
摘要： Systems, apparatuses and methods whereby coded bitstreams are delivered to downstream end-user devices having various performance capabilities. A head-end encoder/video store generates a primary coded bitstream and metadata for delivery to an intermediate re-encoding system. The re-encoding system recodes the primary coded bitstream to generate secondary coded bitstreams based on coding parameters in the metadata. Each secondary coded bitstream is matched to a conformance point of a downstream end-user device. Coding parameters for each conformance point can be derived from the head-end encoder encoding original source video to generate the secondary coded bitstreams and extracting information from the coding process/results. The metadata can then can be communicated as part of the primary coded bitstream (e.g., as SEI) or can be communicated separately. As a result, the complexity of the secondary coded bitstream is appropriately scaled to match the capabilities of the downstream end-user device to which it is delivered.
摘要翻译：编码比特流由此被传送到具有各种性能能力的下游终端用户设备的系统，设备和方法。头端编码器/视频存储器生成主编码比特流和元数据以传送到中间重编码系统。重新编码系统重新编码主要编码比特流以基于元数据中的编码参数来生成次要编码比特流。每个二级编码比特流与下游终端用户设备的一致性点匹配。可以从编码原始源视频的头端编码器导出用于每个一致性点的编码参数，以生成二次编码的比特流并从编码过程/结果中提取信息。元数据然后可以作为主要编码比特流的一部分（例如，作为SEI）被传送，或者可以被分开传送。结果，二级编码比特流的复杂度被适当地缩放以匹配其被递送到的下游最终用户设备的能力。

2. 发明申请

WO2011046710A1 FACIAL POSE IMPROVEMENT WITH PERSPECTIVE DISTORTION CORRECTION 审中-公开
标题翻译：具有视觉失真校正的正面位置改进
公开(公告)号：WO2011046710A1
公开(公告)日：2011-04-21
申请号：PCT/US2010/049350
申请日：2010-09-17
申请人： APPLE INC. , WU, Hsi-Jung , CHUNG, Chris, Yoochang , SHI, Xiaojin , NORMILE, James
发明人： WU, Hsi-Jung , CHUNG, Chris, Yoochang , SHI, Xiaojin , NORMILE, James
IPC分类号： G06T3/00 , G06T5/00
CPC分类号： G06K9/00228 , G06T3/00 , G06T5/006 , G06T2207/20104 , G06T2207/30201 , H04N5/217 , H04N5/23219 , H04N5/23258 , H04N5/23267
摘要： Methods, systems, and apparatus are presented for reducing distortion in an image, such as a video image. A video image can be captured by an image capture device, e.g. during a video conferencing session. Distortion correction processing, such as the application of one or more warping techniques, can be applied to the captured image to produce a distortion corrected image, which can be transmitted to one or more participants. The warping techniques can be performed in accordance with one or more warp parameters specifying a transformation of the captured image. Further, the warp parameters can be generated in accordance with an orientation of the image capture device, which can be determined based on sensor data or can be a fixed value. Additionally or alternatively, the warp parameters can be determined in accordance with a reference image or model to which the captured image should be warped.
摘要翻译：呈现了用于减少诸如视频图像的图像中的失真的方法，系统和装置。视频图像可以由图像捕获设备捕获，例如，在视频会议期间。畸变校正处理，例如应用一个或多个翘曲技术，可以应用于所捕获的图像，以产生可以发送到一个或多个参与者的失真校正图像。翘曲技术可以根据指定捕获图像的变换的一个或多个翘曲参数来执行。此外，可以根据可以基于传感器数据确定的图像捕获装置的取向来生成翘曲参数，或者可以是固定值。附加地或替代地，可以根据捕获的图像应该翘曲的参考图像或模型来确定翘曲参数。

3. 发明申请

WO2006004605A2 MULTI-PASS VIDEO ENCODING 审中-公开
标题翻译：多通道视频编码
公开(公告)号：WO2006004605A2
公开(公告)日：2006-01-12
申请号：PCT/US2005/022616
申请日：2005-06-24
申请人： APPLE COMPUTER, INC. , 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： H04B1/66 , H04N5/14 , H04N11/02 , H04N9/64 , H04N11/04 , 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. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images. During several different iterations of the encoding operation, the method uses several different nominal quantization parameters. The method stops its iterations 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。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。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。该方法在达到终止标准（例如，它识别图像的可接受编码）时停止迭代。

4. 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.

5. 发明申请

WO2011126511A1 ESTABLISHING A VIDEO CONFERENCE DURING A PHONE CALL 审中-公开
标题翻译：在电话会议期间建立一个视频会议
公开(公告)号：WO2011126511A1
公开(公告)日：2011-10-13
申请号：PCT/US2010/050311
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 , G06F3/04817 , G06F3/04842 , G06F3/04886 , G06F9/451 , G09G5/14 , H04M1/72583 , 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：一些实施例提供了一种使用第一移动设备来发起视频会议的方法。该方法在通过无线通信网络与第二设备的音频呼叫期间呈现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用户界面（UI）项目。该方法接收对可选UI项目的选择。该方法启动视频会议而不终止音频呼叫。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。

6. 发明申请

WO2012094290A1 VIDEO CODING SYSTEM USING IMPLIED REFERENCE FRAMES 审中-公开
标题翻译：使用暗示参考框架的视频编码系统
公开(公告)号：WO2012094290A1
公开(公告)日：2012-07-12
申请号：PCT/US2012/020037
申请日：2012-01-03
申请人： APPLE INC. , ZHANG, Ke , ZHANG, Dazhong , PRICE, Douglas, Scott , WU, Hsi-Jung , ZHOU, Xiaosong
发明人： ZHANG, Ke , ZHANG, Dazhong , PRICE, Douglas, Scott , WU, Hsi-Jung , ZHOU, Xiaosong
IPC分类号： H04N11/02
CPC分类号： H04N7/26 , H04N19/23 , H04N19/58
摘要： A video coding/decoding system builds implied reference frames from a plurality of reference frames developed during coding. Coded data of reference pictures are decoded and stored in a reference picture cache. An implied reference frame may be derived from a plurality of reference frames and may be stored in the reference picture cache. Thereafter, coding of new input data may proceed using the implied reference frame as a source of prediction. The method may be used to identify visual elements such as background elements that may persist in video over a longer period that can be captured by the system under conventional reference frames assembly and eviction. Implied reference frames may be built at both an encoder and a decoder to serve as sources of prediction.
摘要翻译：视频编码/解码系统从编码期间开发的多个参考帧构建隐含的参考帧。参考图像的编码数据被解码并存储在参考图像缓存中。可以从多个参考帧导出隐含的参考帧，并且可以将其存储在参考图像高速缓存中。此后，可以使用隐含参考帧作为预测源来进行新输入数据的编码。该方法可以用于识别视觉元素，例如可以在可在常规参考帧组装和驱逐下由系统捕获的较长时间段内持续存在视频的背景元素。可以在编码器和解码器两者构建隐含的参考帧以用作预测的源。

7. 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.

8. 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。

9. 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。

10. 发明申请

WO2006004667A2 ENCODING AND DECODING IMAGES 审中-公开
标题翻译：编码和解码图像
公开(公告)号：WO2006004667A2
公开(公告)日：2006-01-12
申请号：PCT/US2005/022743
申请日：2005-06-24
申请人： APPLE COMPUTER, INC. , KUMAR, Raj , PUN, Thomas , WU, Hsi-Jung , DUVIVIER, Christian
发明人： KUMAR, Raj , PUN, Thomas , WU, Hsi-Jung , DUVIVIER, Christian
IPC分类号： G06K9/36
CPC分类号： G06F12/0802 , H04N19/00 , H04N19/105 , H04N19/107 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/192 , H04N19/43 , H04N19/51 , H04N19/523 , H04N19/53 , H04N19/533 , H04N19/61
摘要： Some embodiments provide a method for encoding a first set of pixels in a first image by reference to a second image in a video sequence. In a first search window within a second image, the method searches to identify a first particular portion in the second image that best matches the first set of pixels in the first image. In the first search window within the second image, the method identifies a first location corresponding to the first particular portion. In a second search window within the second image, the method then searches to identify a second particular portion in the second image that best matches the first set of pixels in the first image, where the second search window is defined about the first location.
摘要翻译：一些实施例提供了一种通过参考视频序列中的第二图像对第一图像中的第一组像素进行编码的方法。在第二图像内的第一搜索窗口中，该方法搜索以识别与第一图像中的第一组像素最佳匹配的第二图像中的第一特定部分。在第二图像内的第一搜索窗口中，该方法识别对应于第一特定部分的第一位置。在第二图像内的第二搜索窗口中，该方法然后搜索以识别与第一图像中的第一组像素最佳匹配的第二图像中的第二特定部分，其中关于第一位置定义第二搜索窗口。

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