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21. 发明申请

WO2016145243A1 ADAPTIVE CHROMA DOWNSAMPLING AND COLOR SPACE CONVERSION TECHNIQUES 审中-公开
标题翻译：自适应色差和颜色空间转换技术
公开(公告)号：WO2016145243A1
公开(公告)日：2016-09-15
申请号：PCT/US2016/021856
申请日：2016-03-10
申请人： APPLE INC.
发明人： TOURAPIS, Alexandros, Michael , SU, Yeping , SINGER, David, William , WU, Hsi-Jung
IPC分类号： H04N19/85 , H04N19/117 , H04N19/147 , H04N19/154 , H04N19/186 , H04N19/80 , H04N19/46 , H04N19/59 , H04N19/70 , H04N9/64 , H04N11/20 , H04N19/132
CPC分类号： H04N19/186 , H04N9/64 , H04N9/67 , H04N11/20 , H04N19/117 , H04N19/132 , H04N19/154 , H04N19/44 , H04N19/46 , H04N19/59 , H04N19/70 , H04N19/82
摘要： A method of adaptive chroma downsampling is presented. The method comprises converting a source image to a converted image in an output color format, applying a plurality of downsample filters to the converted image and estimating a distortion for each filter chose the filter that produces the minimum distortion. The distortion estimation includes applying an upsample filter, and a pixel is output based on the chosen filter. Methods for closed loop conversions are also presented.
摘要翻译：提出了一种自适应色度下采样方法。该方法包括将源图像转换为输出颜色格式的转换图像，将多个下采样滤波器应用于转换的图像，并估计每个滤波器的失真选择产生最小失真的滤波器。失真估计包括应用上采样滤波器，并且基于所选择的滤波器输出像素。还提出了闭环转换的方法。

22. 发明申请

WO2016073283A1 TECHNIQUES IN BACKWARDS COMPATIBLE MULTI-LAYER COMPRESSION OF HDR VIDEO 审中-公开
标题翻译：背景技术兼容HDR视频的多层压缩
公开(公告)号：WO2016073283A1
公开(公告)日：2016-05-12
申请号：PCT/US2015/058098
申请日：2015-10-29
申请人： APPLE INC.
发明人： SU, Yeping , CHUNG, Chris, Y. , WU, Hsi-Jung , ZHAI, Jiefu , ZHANG, Ke , ZHOU, Xiaosong
IPC分类号： H04N19/30 , H04N19/147
CPC分类号： H04N19/503 , H04N19/124 , H04N19/147 , H04N19/172 , H04N19/30
摘要： A scalable coding system codes video as a base layer representation and an enhancement layer representation. A base layer coder may code an LDR representation of a source video. A predictor may predict an HDR representation of the source video from the coded base layer data. A comparator may generate prediction residuals which represent a difference between an HDR representation of the source video and the predicted HDR representation of the source video. A quantizer may quantize the residuals down to an LDR representation. An enhancement layer coder may code the LDR residuals. In other embodiments, the enhancement layer coder may code LDR-converted HDR video directly.
摘要翻译：可扩展编码系统将视频编码为基本层表示和增强层表示。基本层编码器可以对源视频的LDR表示进行编码。预测器可以从编码的基本层数据预测源视频的HDR表示。比较器可以产生表示源视频的HDR表示与源视频的预测HDR表示之间的差异的预测残差。量化器可以将残差量化到LDR表示。增强层编码器可以对LDR残差进行编码。在其他实施例中，增强层编码器可以直接编码LDR转换的HDR视频。

23. 发明申请

WO2015187458A1 DYNAMIC DISPLAY OF VIDEO COMMUNICATION DATA 审中-公开
标题翻译：动态显示视频通信数据
公开(公告)号：WO2015187458A1
公开(公告)日：2015-12-10
申请号：PCT/US2015/032938
申请日：2015-05-28
申请人： APPLE INC.
发明人： ZHOU, Xiaosong , WU, Hsi-Jung , CHUNG, Chris Y. , NORMILE, James O. , ABUAN, Joe S. , JEONG, Hyeonkuk , YANG, Yan , JOHAR, Gobind , JANSEN, Thomas
IPC分类号： H04N7/14 , H04N5/45 , G06T11/60
CPC分类号： H04N7/147 , G06T11/00 , G06T11/60 , H04L51/04 , H04L51/10 , H04M3/567
摘要： Computing devices may implement dynamic display of video communication data. Video communication data for a video communication 5 may be received at a computing device where another application is currently displaying image data on an electronic display. A display location may be determined for the video communication data according to display attributes that are configured by the other application at runtime. Once determined, the video communication data may then be displayed in the determined location. In some embodiments, the video communication data may be integrated with other data displayed on the electronic display for the other application.
摘要翻译：计算设备可以实现视频通信数据的动态显示。用于视频通信的视频通信数据5可以在其他应用当前正在电子显示器上显示图像数据的计算设备处被接收。可以根据在运行时由其他应用配置的显示属性来确定视频通信数据的显示位置。一旦确定，则可以在确定的位置显示视频通信数据。在一些实施例中，视频通信数据可以与用于另一应用的电子显示器上显示的其他数据集成。

24. 发明申请

WO2014134177A2 ADAPTIVE STREAMING TECHNIQUES 审中-公开
标题翻译：自适应流水线技术
公开(公告)号：WO2014134177A2
公开(公告)日：2014-09-04
申请号：PCT/US2014/018702
申请日：2014-02-26
申请人： APPLE INC.
发明人： SU, Yeping , PAN, Hao , NORMILE, James, O. , WU, Hsi-Jung
IPC分类号： H04N21/234
CPC分类号： H04N19/152 , H04N19/142 , H04N21/23418 , H04N21/23424 , H04N21/23439 , H04N21/2402 , H04N21/44004 , H04N21/44008 , H04N21/8456
摘要： Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync frame scene cut tags included in the bitstream. The method may include calculating whether waiting until the identified nearest scene cut boundary before changing the bitrate will cause the buffer to drop below a threshold. When the buffer is calculated to not drop below the threshold, the method may postpone the upcoming bitrate change until the identified nearest scene cut boundary.
摘要翻译：提出了系统和方法，用于最小化由于带宽波动和不同比特率流之间的转换而使用户感觉到的视频质量的突变和即时性。一种方法可以包括从比特流中包括的同步帧场景切换标签中识别比特流中的即将到来的比特率变化和最近的场景剪切边界。该方法可以包括计算是否在更改比特率之前等待直到所识别的最近的场景切割边界将导致缓冲器降低到阈值以下。当缓冲区被计算为不低于阈值时，该方法可以推迟即将到来的比特率改变直到所识别的最近的场景切割边界。

25. 发明申请

WO2020112321A2 ADAPTIVE CODING AND STREAMING OF MULTI-DIRECTIONAL VIDEO 审中-公开
公开(公告)号：WO2020112321A2
公开(公告)日：2020-06-04
申请号：PCT/US2019/060238
申请日：2019-11-07
申请人： APPLE INC.
发明人： YANG, Xiaohua , TOURAPIS, Alexandros , ZHANG, Dazhong , YUAN, Hang , WU, Hsi-Jung , KIM, Jae Hoon , ZHAI, Jiefu , CHEN, Ming , ZHOU, Xiaosong
IPC分类号： H04N21/81 , H04N21/4728 , H04N21/6587 , H04N21/63 , H04N21/2343 , H04N21/84 , H04N21/845 , H04N21/442 , H04N19/00
摘要： In communication applications, aggregate source image data at a transmitter exceeds the data that is needed to display a rendering of a viewport at a receiver. Improved streaming techniques that include estimating a location of a viewport at a future time. According to such techniques, the viewport may represent a portion of an image from a multi-directional video to be displayed at the future time, and tile(s) of the image may be identified in which the viewport is estimated to be located. In these techniques, the image data of tile(s) in which the viewport is estimated to be located may be requested at a first service tier, and the other tile in which the viewport is not estimated to be located may be requested at a second service tier, lower than the first service tier.

26. 发明申请

WO2018044441A1 MULTIDIMENSIONAL QUANTIZATION TECHNIQUES FOR VIDEO CODING/DECODING SYSTEMS 审中-公开
标题翻译：视频编码/解码系统的多维量化技术
公开(公告)号：WO2018044441A1
公开(公告)日：2018-03-08
申请号：PCT/US2017/044208
申请日：2017-07-27
申请人： APPLE INC.
发明人： TOURAPIS, Alexandros , SU, Yeping , SINGER, David , WU, Hsi-Jung
IPC分类号： H04N19/124 , H04N19/186 , H04N19/182 , H04N19/184 , H04N19/132 , H04N19/167 , H04N19/436
摘要： Video compression and decompression techniques are disclosed that provide improved bandwidth control for video compression and decompression systems. In particular, video coding and decoding techniques quantize input video in multiple dimensions. According to these techniques, pixel residuals may be generated from a comparison of an array of input data to an array of prediction data. The pixel residuals may be quantized in a first dimension. After the quantization, the quantized pixel residuals may be transformed to an array of transform coefficients. The transform coefficients may be quantized in a second dimension and entropy coded. Decoding techniques invert these processes. In still other embodiments, multiple quantizers may be provided upstream of the transform stage, either in parallel or in cascade, which provide greater flexibility to video coders to quantize data in different dimensions in an effort to balance the competing interest in compression efficiency and quality of reconstructed video.
摘要翻译：公开了视频压缩和解压缩技术，其为视频压缩和解压缩系统提供改进的带宽控制。具体而言，视频编码和解码技术以多维量化输入视频。根据这些技术，可以从输入数据阵列与预测数据阵列的比较中生成像素残差。像素残差可以在第一维度量化。在量化之后，量化的像素残差可以被变换为变换系数的阵列。变换系数可以在第二维中被量化并且被熵编码。解码技术颠倒了这些过程。在其他实施例中，可以在变换级的上游提供多个并行或级联的量化器，这为视频编码器提供了更大的灵活性，以量化不同维度的数据，努力平衡对压缩效率和质量的竞争兴趣重建视频。

27. 发明申请

WO2016196843A1 TECHNIQUES FOR RESOURCE CONSERVATION DURING PERFORMANCE OF INTRA BLOCK COPY PREDICTION SEARCHES 审中-公开
标题翻译：内部块复制预测搜索期间资源保存技术
公开(公告)号：WO2016196843A1
公开(公告)日：2016-12-08
申请号：PCT/US2016/035591
申请日：2016-06-02
申请人： APPLE INC.
发明人： TOURAPIS, Alexandros , SINGER, David W. , GUO, Haitao , WU, Hsi-Jung , CISMAS, Sorin C. , YANG, Xiaohua , SU, Yeping , ZHANG, Dazhong
IPC分类号： H04N19/593 , H04N19/117 , H04N19/156 , H04N19/174
CPC分类号： H04N19/593 , H04N19/117 , H04N19/156 , H04N19/174 , H04N19/176 , H04N19/182
摘要： Methods are described for encoding and decoding blocks of image data using intra block copying (IBC). A source block for intra block copying is selected from a source region of a current image that is closer to the current block than a threshold, wherein the source region does not include a portion of the current image that is further from the current block than the threshold.
摘要翻译：描述了使用块内复制（IBC）对图像数据块进行编码和解码的方法。用于块内复制的源块从当前图像的比当前块更靠近阈值的源区域中选择，其中源区域不包括比当前块更远的当前图像的一部分，阈。

28. 发明申请

WO2016168051A1 TECHNIQUES FOR ADVANCED CHROMA PROCESSING 审中-公开
标题翻译：高级色谱加工技术
公开(公告)号：WO2016168051A1
公开(公告)日：2016-10-20
申请号：PCT/US2016/026374
申请日：2016-04-07
申请人： APPLE INC.
发明人： TOURAPIS, Alexandros Michael , SU, Yeping , SINGER, David William , WU, Hsi-Jung
IPC分类号： H04N1/60 , H04N9/67 , H04N19/00
CPC分类号： H04N1/6005 , H04N1/6058 , H04N9/67 , H04N19/186 , H04N19/46 , H04N19/85
摘要： Image and video processing techniques are disclosed for processing components of a color space individually by determining limits for each component based on the relationship between each component in a color space. These limits may then be used to clip each component such that the component values are within the determined range for that component. In this manner, more efficient processing of images and/or video may be achieved.
摘要翻译：公开了图像和视频处理技术，用于通过基于颜色空间中的每个组件之间的关系确定每个组件的限制来单独地处理颜色空间的组件。然后可以使用这些限制来剪切每个组件，使得组件值在该组件的确定的范围内。以这种方式，可以实现图像和/或视频的更有效的处理。

29. 发明申请

WO2015183696A1 VIDEO CODING WITH COMPOSITION AND QUALITY ADAPTATION BASED ON DEPTH DERIVATIONS 审中-公开
标题翻译：基于深度衍生的视频编码与组合和质量调适
公开(公告)号：WO2015183696A1
公开(公告)日：2015-12-03
申请号：PCT/US2015/032046
申请日：2015-05-21
申请人： APPLE INC.
发明人： ZHOU, Xiaosong , WU, Hsi-Jung , CHUNG, Chris, Y. , NORMILE, James, O. , ZHANG, Dazhong
IPC分类号： H04N19/17 , H04N19/115
CPC分类号： H04N5/262 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/167 , H04N19/17
摘要： [69] Techniques for coding video data estimate depths of different elements within video content (310) and identify regions within the video content based on the estimated depths (320). One of the regions may be assigned as an area of interest (330). Thereafter, video content of a region that is not an area of interest may be masked out (340) and the resultant video content obtained from the masking may be coded (350). The coded video content may be transmitted to a channel (360). These techniques permit a coding terminal to mask out captured video content prior to coding in order to support coding policies that account for privacy interests or video composition features during a video coding session.
摘要翻译：用于编码视频数据的技术估计视频内容（310）内的不同元素的深度，并基于估计的深度（320）识别视频内容内的区域。其中一个区域可以被分配为感兴趣的区域（330）。此后，可以屏蔽不是感兴趣区域的区域的视频内容（340），并且可以对从屏蔽获得的结果视频内容进行编码（350）。编码的视频内容可以被发送到频道（360）。这些技术允许编码终端在编码之前掩蔽捕获的视频内容，以便在视频编码会话期间支持考虑隐私兴趣或视频合成特征的编码策略。

30. 发明申请

WO2015175549A1 TECHNIQUES FOR HDR/WCR VIDEO CODING 审中-公开
标题翻译： HDR / WCR视频编码技术
公开(公告)号：WO2015175549A1
公开(公告)日：2015-11-19
申请号：PCT/US2015/030405
申请日：2015-05-12
申请人： APPLE INC.
发明人： SU, Yeping , ZHAI, Jiefu , ZHANG, Ke , ZHOU, Xiaosong , WU, Hsi-Jung , CHUNG, Chris, Y.
IPC分类号： H04N19/30 , H04N19/46
CPC分类号： H04N19/30 , H04N19/46
摘要： Systems and methods are provided for processing high quality video data, such as data having a higher than standard bit depth, a high dynamic range, or a wide or custom color gamut, to be compatible with conventional encoders and decoders without significant loss of quality. High quality data is encoded into a plurality of layers with a base layer having the standard quality data and one or more higher quality layers. Decoding systems and methods may map the base layer to the dynamic range or color gamut of the enhancement layer, combine the layers, and map the combined layers to a dynamic range or color gamut appropriate for the target display. Each of the standard quality and the high quality data may be encoded as a plurality of tiers of increasing quality and reference lower level tiers as sources of prediction during predictive coding.
摘要翻译：提供了用于处理高质量视频数据的系统和方法，例如具有高于标准位深度，高动态范围或宽或定制色域的数据，以与常规编码器和解码器兼容，而没有显着的质量损失。高质量数据被编码成具有基层的多层，具有标准质量数据和一个或多个较高质量层。解码系统和方法可以将基本层映射到增强层的动态范围或色域，组合层，并将组合层映射到适合于目标显示的动态范围或色域。标准质量和高质量数据中的每一个可以被编码为增加质量的多个层级和作为预测编码期间的预测源的较低级别的参考。

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